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OT2m version 2.0a

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  • n0rxd
    I received my OT2m with the 2.0a PCB a week ago. I got it configured and working as a tracker with a Garmin nuvi 350; however it does not receive any packets.
    Message 1 of 16 , Jan 1, 2010
      I received my OT2m with the 2.0a PCB a week ago. I got it configured and working as a tracker with a Garmin nuvi 350; however it does not receive any packets. The RX and TX LEDs flash on power-up, but RX does not light after that. Upgraded firmware to version 55076. I have tried soft and non-soft DCD, equalization jumper on and off, but still no RX.

      I tested using a friend's version 1.0 with the same settings, jumpers, and cables and it received OK.

      I noticed the modem is a MX614DW which is not on the schematic. Is there a new schematic for this model?

      Does anyone else have this model, problem, or any suggestions as to what I should do or try next?

      Thanks, Mark
    • Scott Miller
      I thought I d posted the new schematic - I ll have to make sure that gets on the wiki. Check for any visible bad solder joints. It was tested before it left,
      Message 2 of 16 , Jan 1, 2010
        I thought I'd posted the new schematic - I'll have to make sure that
        gets on the wiki.

        Check for any visible bad solder joints. It was tested before it left,
        so if it's not working now, chances are it's something that came loose
        afterward. You're welcome to send it back for inspection, but I'll be
        gone Thursday and Friday for CES.

        Scott

        n0rxd wrote:
        >
        >
        > I received my OT2m with the 2.0a PCB a week ago. I got it configured and
        > working as a tracker with a Garmin nuvi 350; however it does not receive
        > any packets. The RX and TX LEDs flash on power-up, but RX does not light
        > after that. Upgraded firmware to version 55076. I have tried soft and
        > non-soft DCD, equalization jumper on and off, but still no RX.
        >
        > I tested using a friend's version 1.0 with the same settings, jumpers,
        > and cables and it received OK.
        >
        > I noticed the modem is a MX614DW which is not on the schematic. Is there
        > a new schematic for this model?
        >
        > Does anyone else have this model, problem, or any suggestions as to what
        > I should do or try next?
        >
        > Thanks, Mark
        >
        >
      • n5faz
        mark, scott, i had the same issue with my brand new tracker2. if i took the board completely out of the case it would receive. it appeared that one lead on the
        Message 3 of 16 , Jan 1, 2010
          mark, scott,

          i had the same issue with my brand new tracker2. if i took the board completely out of the case it would receive. it appeared that one lead on the crystal on the left side of the board was shorting to the case nut. trim the leads, reassemble and receive ok.

          now my unit has developed a another problem. it intermittently wont power up. it works most of the time on the bench with an ac adapter. but when getting power from the radio in the truck, it does not work most of the time. i then wired a seperate power cord for the tracker. that seemed to help but didnt fix the problem. other times it will work for a few minutes then lockup with no rx and no responce on the console. the gps connected to the tracker2's 5v output always works.

          some of the symptoms it has when not working are:
          green led lites up dim and the others dont flash,
          or after a few seconds the act led will flash red red green very slowly then a few seconds later the rx, tx leds will flash but the unit still wont rx or respond to the console.

          i dont think it is a power problem, i think the problem is tempature related as it works much more reliably in the 70+ degree house than in the less than 40 degree truck.

          also the quality of the hand soldered parts does not appear to be very good.

          i am planning on sending my unit back for a replacement.

          paul n5faz


          --- In tracker2@yahoogroups.com, Scott Miller <scott@...> wrote:
          >
          > I thought I'd posted the new schematic - I'll have to make sure that
          > gets on the wiki.
          >
          > Check for any visible bad solder joints. It was tested before it left,
          > so if it's not working now, chances are it's something that came loose
          > afterward. You're welcome to send it back for inspection, but I'll be
          > gone Thursday and Friday for CES.
          >
          > Scott
        • wyoming_semi_driver@hotmail.com
          I m wondering if I m having some of the same solder problems that I keep posting a few days again. I don t know much about this type of stuff but every now and
          Message 4 of 16 , Jan 2, 2010
            I'm wondering if I'm having some of the same solder problems that I keep posting a few days again. I don’t know much about this type of stuff but every now and then my tracker2 will go into HT mode without the HT jumper in place and will stop tx on my mobile radio and I'm wondering if some the solder points that sticking out are touching each other. I'm thinking of sending mine back but with me working on the road hauling fuel I will have to take time off of work to get to the post office.
            K7CDL
            Ron Swart

            From: n5faz
            Sent: Saturday, January 02, 2010 12:39 AM
            Subject: [tracker2] Re: OT2m version 2.0a

             

            mark, scott,

            i had the same issue with my brand new tracker2. if i took the board completely out of the case it would receive. it appeared that one lead on the crystal on the left side of the board was shorting to the case nut. trim the leads, reassemble and receive ok.

            now my unit has developed a another problem. it intermittently wont power up. it works most of the time on the bench with an ac adapter. but when getting power from the radio in the truck, it does not work most of the time. i then wired a seperate power cord for the tracker. that seemed to help but didnt fix the problem. other times it will work for a few minutes then lockup with no rx and no responce on the console. the gps connected to the tracker2's 5v output always works.

            some of the symptoms it has when not working are:
            green led lites up dim and the others dont flash,
            or after a few seconds the act led will flash red red green very slowly then a few seconds later the rx, tx leds will flash but the unit still wont rx or respond to the console.

            i dont think it is a power problem, i think the problem is tempature related as it works much more reliably in the 70+ degree house than in the less than 40 degree truck.

            also the quality of the hand soldered parts does not appear to be very good.

            i am planning on sending my unit back for a replacement.

            paul n5faz

            --- In tracker2@yahoogroup s.com, Scott Miller <scott@...> wrote:

            >
            > I thought I'd posted the
            new schematic - I'll have to make sure that
            > gets on the wiki.
            >
            > Check for any visible bad solder joints. It was tested before it left,
            > so if it's not working now, chances are it's something that came loose
            > afterward. You're welcome to send it back for inspection, but I'll be
            > gone Thursday and Friday for CES.
            >
            > Scott

          • Ron K7CDL
            thanks for posting this i started wondering if i wasnt just having some problem and doing something wroung on my end. the tracker2 went back into HT mode last
            Message 5 of 16 , Jan 2, 2010
              thanks for posting this i started wondering if i wasnt just having some problem and doing something wroung on my end. the tracker2 went back into HT mode last night without the HT jumper in place again last night for like the 5th time in a week. i just dont know. i know this has nothing to do with scott or anything he did it has to do with the company that put these together. i really like the work scott does and the FMI is very nice but i cant use it with a HT because i dont have a HT that will work with this. other then this unit keep going in and out of HT mode it works great.i have used the change the setting by the gps commands a lot of time. i guess my main reason for writing this 2nd email is i dont want scott too upset with me about complaining. there is a lot of good stuff about these tracker2 units and just very little going wroung but these very little is keeping me from using it. i will try to get home in the next week to get it back to you to see if maybe its a fast fix or not or if maybe its like everything else as soon as you get it into the shop it works perfect lol. thanks again for your hard work scott and hope to get 3 more of these tracker2 once all the stuff that might be wroung gets looked at.
              thanks,
              K7CDL
              Ron Swart

              --- In tracker2@yahoogroups.com, "n5faz" <n5faz@...> wrote:
              >
              > mark, scott,
              >
              > i had the same issue with my brand new tracker2. if i took the board completely out of the case it would receive. it appeared that one lead on the crystal on the left side of the board was shorting to the case nut. trim the leads, reassemble and receive ok.
              >
              > now my unit has developed a another problem. it intermittently wont power up. it works most of the time on the bench with an ac adapter. but when getting power from the radio in the truck, it does not work most of the time. i then wired a seperate power cord for the tracker. that seemed to help but didnt fix the problem. other times it will work for a few minutes then lockup with no rx and no responce on the console. the gps connected to the tracker2's 5v output always works.
              >
              > some of the symptoms it has when not working are:
              > green led lites up dim and the others dont flash,
              > or after a few seconds the act led will flash red red green very slowly then a few seconds later the rx, tx leds will flash but the unit still wont rx or respond to the console.
              >
              > i dont think it is a power problem, i think the problem is tempature related as it works much more reliably in the 70+ degree house than in the less than 40 degree truck.
              >
              > also the quality of the hand soldered parts does not appear to be very good.
              >
              > i am planning on sending my unit back for a replacement.
              >
              > paul n5faz
              >
              >
              > --- In tracker2@yahoogroups.com, Scott Miller <scott@> wrote:
              > >
              > > I thought I'd posted the new schematic - I'll have to make sure that
              > > gets on the wiki.
              > >
              > > Check for any visible bad solder joints. It was tested before it left,
              > > so if it's not working now, chances are it's something that came loose
              > > afterward. You're welcome to send it back for inspection, but I'll be
              > > gone Thursday and Friday for CES.
              > >
              > > Scott
              >
            • James Ewen
              On Sat, Jan 2, 2010 at 11:57 AM, Ron K7CDL ... Okay, I m baffled... how do you know that the unit is in HT mode? The easy way to tell would be to look at the
              Message 6 of 16 , Jan 2, 2010
                On Sat, Jan 2, 2010 at 11:57 AM, Ron K7CDL
                <wyoming_semi_driver@...> wrote:

                > the tracker2 went back into HT mode last night without the HT
                > jumper in place again last night for like the 5th time in a week.

                Okay, I'm baffled... how do you know that the unit is in HT mode?

                The easy way to tell would be to look at the jumper and see that it is
                across the HT pins.

                The HT jumper couples the PTT out to the audio out line via a 2.2K
                resistor. Have you been able to confirm that you are seeing the PTT
                assertion on the audio line by monitoring the audio line with a meter
                or scope?

                > i have used the change the setting by the gps commands a lot of time.

                To do what? You are not able to change the HT setting via the command
                console, which is what I am thinking that you are talking about.

                You can spend a lot of time trying to fix a problem that doesn't
                exist. I'm not convinced that you have a problem with the HT setting.
                The information you have provided so far is insufficient to be able to
                confirm or deny the suggested issue.

                James
                VE6SRV
              • wyoming_semi_driver@hotmail.com
                because I have a HT that has very bad RFI problems but I can use it to test stuff. when the tracker2 stops TX on my mobile I hook up the HT to the tracker2
                Message 7 of 16 , Jan 2, 2010
                  because I have a HT that has very bad RFI problems but I can use it to test stuff. when the tracker2 stops TX on my mobile I hook up the HT to the tracker2 asap and the PTT lights come on the top of the HT and then after a wile of waiting sometimes it will let go of the HT mode and go back to the mobile mode on it by itself but now it is staying in HT mode and NO the HT jumper isnt installed at all. I'm able to change the commands on my tracker2 via my nuvi 350 duh. I can hear the sound coming from the HT with using another radio I don’t need a scope to know this. but I'm also not much into trying to fix stuff I don’t know much about, when you do this you just mess it up even wost. I have been able to get a opentracker and a TT4 working so I do know how to do some stuff. I guess I could always find the 2.2k resistor you talk about and take it out of there sience I don’t need HT use at all,sience this is the only problem I'm having is it wont stay out of HT mode but again why do this and risk really messing up the unit. I was thinking just maybe I was doing something wroung until I seen this past email from this person and I took the unit out of the box and did seen a lot of solder points just about touching each other and I can see how they would touch each other very easy. but I'm noting going to get upset or try to start any fights on group. the easy fix is have someone that knows what they are doing take a look at it, I have already made plans to go home tuesday to get the box and packing and get it mailed out.
                  73
                  K7CDL
                  Ron Swart

                  Sent: Saturday, January 02, 2010 12:32 PM
                  Subject: Re: [tracker2] Re: OT2m version 2.0a

                   

                  On Sat, Jan 2, 2010 at 11:57 AM, Ron K7CDL
                  <wyoming_semi_ driver@hotmail. com> wrote:

                  > the tracker2 went back into HT mode last night without the
                  HT
                  > jumper in place again last night for like the 5th time in a
                  week.

                  Okay, I'm baffled... how do you know that the unit is in HT mode?

                  The easy way to tell would be to look at the jumper and see that it is
                  across the HT pins.

                  The HT jumper couples the PTT out to the audio out line via a 2.2K
                  resistor. Have you been able to confirm that you are seeing the PTT
                  assertion on the audio line by monitoring the audio line with a meter
                  or scope?

                  > i have used the change the setting by the gps
                  commands a lot of time.

                  To do what? You are not able to change the HT setting via the command
                  console, which is what I am thinking that you are talking about.

                  You can spend a lot of time trying to fix a problem that doesn't
                  exist. I'm not convinced that you have a problem with the HT setting.
                  The information you have provided so far is insufficient to be able to
                  confirm or deny the suggested issue.

                  James
                  VE6SRV

                • James Ewen
                  ... Okay, what HT is it? Which cable do you have from RPC? ... Okay, so you change the radio and the cable. Does the cable have the resistor and capacitor
                  Message 8 of 16 , Jan 2, 2010
                    On Sat, Jan 2, 2010 at 12:46 PM, <wyoming_semi_driver@...> wrote:

                    > because I have a HT that has very bad RFI problems but I can use it to test stuff.

                    Okay, what HT is it? Which cable do you have from RPC?

                    > when the tracker2 stops TX on my mobile I hook up the HT to the tracker2 asap
                    > and the PTT lights come on the top of the HT and then after a wile of waiting
                    > sometimes it will let go of the HT mode and go back to the mobile mode on it by
                    > itself but now it is staying in HT mode and NO the HT jumper isnt installed at all.

                    Okay, so you change the radio and the cable. Does the cable have the
                    resistor and capacitor included in it? The PTT line could be tied into
                    the audio line in the cable rather than using the internal jumper. If
                    this is the case, then the assumption that the HT jumper is magically
                    being enabled is untrue.

                    > I'm able to change the commands on my tracker2 via my nuvi 350 duh.

                    Your posts do not make it clear as to what it is that you are changing
                    on the OT2. You state that you can change settings, and it can be
                    inferred that these changes being made somehow fix the issue at hand.
                    Of course the reverse could be true, and that you are just adding in
                    superfluous information as a red herring to throw people off track.

                    > I can hear the sound coming from the HT with using
                    > another radio I don’t need a scope to know this.

                    So from this, you can assume that the OT2 is driving the HT properly,
                    but you can not assume that the HT jumper is enabled without knowing
                    more about the cables you are using.

                    > but I'm also not much into trying to fix stuff I don’t know much about,
                    > when you do this you just mess it up even wost.

                    This is a good idea, however, you're not trying to fix stuff as in
                    repair components, but rather identify an issue, find a cause, and
                    then from there implement a solution.

                    > I have been able to get a opentracker and a TT4 working so I do know
                    > how to do some stuff.

                    Yes, you have purchased parts, and plugged them in. It sounds like
                    there may be an intermittent issue somewhere in the mix, and we are
                    attempting to help you identify where the intermittent issue might be
                    located. To do that, we need to know what you have, what you are
                    doing, and what the symptoms are. Partial information, mixed up
                    results, and unrelated information provided just makes it that much
                    more difficult to help you.

                    > I guess I could always find the 2.2k resistor you talk about and take
                    > it out of there sience I don’t need HT use at all,sience this is the only
                    > problem I'm having is it wont stay out of HT mode but again why do
                    > this and risk really messing up the unit.

                    Well, if you took the OT2 out of the mix, that would get rid of the
                    problem as well, but that's not really a good solution, is it? As for
                    that being the only problem, I don't think so. Have you determined why
                    you weren't able to get messaging working? I sent a message that you
                    obviously received, and replied to. Have you gotten messaging working?
                    Looks like a lot of attempts from you to send messages to N7HRI, but
                    not successfully.

                    > I was thinking just maybe I was doing something wroung until I seen
                    > this past email from this person and I took the unit out of the box and
                    > did seen a lot of solder points just about touching each other and I
                    > can see how they would touch each other very easy.

                    Yes, Scott has had some issues with contract manufacturer quality
                    control, but that does not mean that every unit has the exact same
                    issue. If I ran mine over with my truck, and said that the board was
                    cracked, would you automatically assume that your board is cracked as
                    well?

                    > but I'm noting going to get upset or try to start any fights on group.
                    > the easy fix is have someone that knows what they are doing take
                    > a look at it, I have already made plans to go home tuesday to get
                    > the box and packing and get it mailed out.

                    Okay, so you take the OT2 box it up, send it to Scott, and he looks at
                    it. Best case scenario, he finds some solder bridges, or long
                    component leads that are shorting out on you. The other option is that
                    he checks it all out and finds no issues. He sends it back to you, and
                    now we are right back where we are now.

                    Systematic experimentation now might save you the time and expense of
                    sending a perfectly good unit back to Scott.

                    There are a lot of little twiddly bits to deal with, and niggly little
                    details that can cause issues. When everything is working, everyone is
                    happy. When things don't work, it can be annoying, but you can usually
                    find the problem and rectify it. However, when the issue is
                    intermittent, it can drive you batty trying to find the cause and
                    solution.

                    We're just working on finding the cause before we all go batty! 8)

                    James
                    VE6SRV
                  • nb7o
                    Just a thought. Some are putting a tone on their APRS radio and then setting tone-squelch on. This will let you receive a short voice message from another
                    Message 9 of 16 , Jan 2, 2010
                      Just a thought. Some are putting a tone on their APRS radio and then setting tone-squelch on. This will let you receive a short voice message from another APRS station. This concept works well if you are not decoding like the OT2m and Nuvi 350 do. But it will block the signals from getting into the OT2m if you want to decode.

                      Check to see if you are getting out on APRS. You can do this by checking findu or another internet site. Then make certain that you do not have any tone settings turned on. I ran into this with a friend who was having a similar no-decode issue. We got a good laugh at ourselves when we figured it out.

                      73 de kevin/NB7O


                      --- In tracker2@yahoogroups.com, "n0rxd" <mark-atherton@...> wrote:
                      >
                      > I received my OT2m with the 2.0a PCB a week ago. I got it configured and working as a tracker with a Garmin nuvi 350; however it does not receive any packets. The RX and TX LEDs flash on power-up, but RX does not light after that. Upgraded firmware to version 55076. I have tried soft and non-soft DCD, equalization jumper on and off, but still no RX.
                      >
                      > I tested using a friend's version 1.0 with the same settings, jumpers, and cables and it received OK.
                      >
                      > I noticed the modem is a MX614DW which is not on the schematic. Is there a new schematic for this model?
                      >
                      > Does anyone else have this model, problem, or any suggestions as to what I should do or try next?
                      >
                      > Thanks, Mark
                      >
                    • wyoming_semi_driver@hotmail.com
                      found out the message problem all has to do with deviation problems, I can talk to gillette but none of my stuff can get into sheridan where n7hri is and we
                      Message 10 of 16 , Jan 2, 2010
                        found out the message problem all has to do with deviation problems, I can
                        talk to gillette but none of my stuff can get into sheridan where n7hri is
                        and we are trying to work on this. the digi systems in sheridan are being
                        ran by motorola radios and I cant seem to get the right deviation to drive
                        the sound on them. there is only 2 stations that can drive them right.I'm
                        using a maha rexon rl-112 that is fully open for all freq I don’t know about
                        the type of cable, it has the mic input. it’s the same cable at byonics that’s
                        the HT1C cable but without the power. you have this right about me getting
                        batty. there is something intermittent issue. I was able to get your message
                        on my gps. I don’t know what I'm doing here. I wish know more about solder
                        and stuff, I'm just a dumb little truck driver out here in lonely wyoming
                        lol.
                        K7CDL
                        Ron
                        --------------------------------------------------
                        From: "James Ewen" <ve6srv@...>
                        Sent: Saturday, January 02, 2010 1:53 PM
                        To: <tracker2@yahoogroups.com>
                        Subject: Re: [tracker2] Re: OT2m version 2.0a

                        > On Sat, Jan 2, 2010 at 12:46 PM, <wyoming_semi_driver@...> wrote:
                        >
                        >> because I have a HT that has very bad RFI problems but I can use it to
                        >> test stuff.
                        >
                        > Okay, what HT is it? Which cable do you have from RPC?
                        >
                        >> when the tracker2 stops TX on my mobile I hook up the HT to the tracker2
                        >> asap
                        >> and the PTT lights come on the top of the HT and then after a wile of
                        >> waiting
                        >> sometimes it will let go of the HT mode and go back to the mobile mode on
                        >> it by
                        >> itself but now it is staying in HT mode and NO the HT jumper isnt
                        >> installed at all.
                        >
                        > Okay, so you change the radio and the cable. Does the cable have the
                        > resistor and capacitor included in it? The PTT line could be tied into
                        > the audio line in the cable rather than using the internal jumper. If
                        > this is the case, then the assumption that the HT jumper is magically
                        > being enabled is untrue.
                        >
                        >> I'm able to change the commands on my tracker2 via my nuvi 350 duh.
                        >
                        > Your posts do not make it clear as to what it is that you are changing
                        > on the OT2. You state that you can change settings, and it can be
                        > inferred that these changes being made somehow fix the issue at hand.
                        > Of course the reverse could be true, and that you are just adding in
                        > superfluous information as a red herring to throw people off track.
                        >
                        >> I can hear the sound coming from the HT with using
                        >> another radio I don’t need a scope to know this.
                        >
                        > So from this, you can assume that the OT2 is driving the HT properly,
                        > but you can not assume that the HT jumper is enabled without knowing
                        > more about the cables you are using.
                        >
                        >> but I'm also not much into trying to fix stuff I don’t know much about,
                        >> when you do this you just mess it up even wost.
                        >
                        > This is a good idea, however, you're not trying to fix stuff as in
                        > repair components, but rather identify an issue, find a cause, and
                        > then from there implement a solution.
                        >
                        >> I have been able to get a opentracker and a TT4 working so I do know
                        >> how to do some stuff.
                        >
                        > Yes, you have purchased parts, and plugged them in. It sounds like
                        > there may be an intermittent issue somewhere in the mix, and we are
                        > attempting to help you identify where the intermittent issue might be
                        > located. To do that, we need to know what you have, what you are
                        > doing, and what the symptoms are. Partial information, mixed up
                        > results, and unrelated information provided just makes it that much
                        > more difficult to help you.
                        >
                        >> I guess I could always find the 2.2k resistor you talk about and take
                        >> it out of there sience I don’t need HT use at all,sience this is the only
                        >> problem I'm having is it wont stay out of HT mode but again why do
                        >> this and risk really messing up the unit.
                        >
                        > Well, if you took the OT2 out of the mix, that would get rid of the
                        > problem as well, but that's not really a good solution, is it? As for
                        > that being the only problem, I don't think so. Have you determined why
                        > you weren't able to get messaging working? I sent a message that you
                        > obviously received, and replied to. Have you gotten messaging working?
                        > Looks like a lot of attempts from you to send messages to N7HRI, but
                        > not successfully.
                        >
                        >> I was thinking just maybe I was doing something wroung until I seen
                        >> this past email from this person and I took the unit out of the box and
                        >> did seen a lot of solder points just about touching each other and I
                        >> can see how they would touch each other very easy.
                        >
                        > Yes, Scott has had some issues with contract manufacturer quality
                        > control, but that does not mean that every unit has the exact same
                        > issue. If I ran mine over with my truck, and said that the board was
                        > cracked, would you automatically assume that your board is cracked as
                        > well?
                        >
                        >> but I'm noting going to get upset or try to start any fights on group.
                        >> the easy fix is have someone that knows what they are doing take
                        >> a look at it, I have already made plans to go home tuesday to get
                        >> the box and packing and get it mailed out.
                        >
                        > Okay, so you take the OT2 box it up, send it to Scott, and he looks at
                        > it. Best case scenario, he finds some solder bridges, or long
                        > component leads that are shorting out on you. The other option is that
                        > he checks it all out and finds no issues. He sends it back to you, and
                        > now we are right back where we are now.
                        >
                        > Systematic experimentation now might save you the time and expense of
                        > sending a perfectly good unit back to Scott.
                        >
                        > There are a lot of little twiddly bits to deal with, and niggly little
                        > details that can cause issues. When everything is working, everyone is
                        > happy. When things don't work, it can be annoying, but you can usually
                        > find the problem and rectify it. However, when the issue is
                        > intermittent, it can drive you batty trying to find the cause and
                        > solution.
                        >
                        > We're just working on finding the cause before we all go batty! 8)
                        >
                        > James
                        > VE6SRV
                        >
                        >
                        > ------------------------------------
                        >
                        > Yahoo! Groups Links
                        >
                        >
                        >
                        >
                      • wyoming_semi_driver@hotmail.com
                        and the mobile cable I m using is the R2C from byonics with yaesu FT-2700RH 25w. ... From: Sent: Saturday, January 02, 2010
                        Message 11 of 16 , Jan 2, 2010
                          and the mobile cable I'm using is the R2C from byonics with yaesu FT-2700RH
                          25w.

                          --------------------------------------------------
                          From: <wyoming_semi_driver@...>
                          Sent: Saturday, January 02, 2010 2:11 PM
                          To: <tracker2@yahoogroups.com>
                          Subject: Re: [tracker2] Re: OT2m version 2.0a

                          > found out the message problem all has to do with deviation problems, I can
                          > talk to gillette but none of my stuff can get into sheridan where n7hri is
                          > and we are trying to work on this. the digi systems in sheridan are being
                          > ran by motorola radios and I cant seem to get the right deviation to drive
                          > the sound on them. there is only 2 stations that can drive them right.I'm
                          > using a maha rexon rl-112 that is fully open for all freq I don’t know
                          > about
                          > the type of cable, it has the mic input. it’s the same cable at byonics
                          > that’s
                          > the HT1C cable but without the power. you have this right about me getting
                          > batty. there is something intermittent issue. I was able to get your
                          > message
                          > on my gps. I don’t know what I'm doing here. I wish know more about solder
                          > and stuff, I'm just a dumb little truck driver out here in lonely wyoming
                          > lol.
                          > K7CDL
                          > Ron
                          > --------------------------------------------------
                          > From: "James Ewen" <ve6srv@...>
                          > Sent: Saturday, January 02, 2010 1:53 PM
                          > To: <tracker2@yahoogroups.com>
                          > Subject: Re: [tracker2] Re: OT2m version 2.0a
                          >
                          >> On Sat, Jan 2, 2010 at 12:46 PM, <wyoming_semi_driver@...> wrote:
                          >>
                          >>> because I have a HT that has very bad RFI problems but I can use it to
                          >>> test stuff.
                          >>
                          >> Okay, what HT is it? Which cable do you have from RPC?
                          >>
                          >>> when the tracker2 stops TX on my mobile I hook up the HT to the tracker2
                          >>> asap
                          >>> and the PTT lights come on the top of the HT and then after a wile of
                          >>> waiting
                          >>> sometimes it will let go of the HT mode and go back to the mobile mode
                          >>> on
                          >>> it by
                          >>> itself but now it is staying in HT mode and NO the HT jumper isnt
                          >>> installed at all.
                          >>
                          >> Okay, so you change the radio and the cable. Does the cable have the
                          >> resistor and capacitor included in it? The PTT line could be tied into
                          >> the audio line in the cable rather than using the internal jumper. If
                          >> this is the case, then the assumption that the HT jumper is magically
                          >> being enabled is untrue.
                          >>
                          >>> I'm able to change the commands on my tracker2 via my nuvi 350 duh.
                          >>
                          >> Your posts do not make it clear as to what it is that you are changing
                          >> on the OT2. You state that you can change settings, and it can be
                          >> inferred that these changes being made somehow fix the issue at hand.
                          >> Of course the reverse could be true, and that you are just adding in
                          >> superfluous information as a red herring to throw people off track.
                          >>
                          >>> I can hear the sound coming from the HT with using
                          >>> another radio I don’t need a scope to know this.
                          >>
                          >> So from this, you can assume that the OT2 is driving the HT properly,
                          >> but you can not assume that the HT jumper is enabled without knowing
                          >> more about the cables you are using.
                          >>
                          >>> but I'm also not much into trying to fix stuff I don’t know much about,
                          >>> when you do this you just mess it up even wost.
                          >>
                          >> This is a good idea, however, you're not trying to fix stuff as in
                          >> repair components, but rather identify an issue, find a cause, and
                          >> then from there implement a solution.
                          >>
                          >>> I have been able to get a opentracker and a TT4 working so I do know
                          >>> how to do some stuff.
                          >>
                          >> Yes, you have purchased parts, and plugged them in. It sounds like
                          >> there may be an intermittent issue somewhere in the mix, and we are
                          >> attempting to help you identify where the intermittent issue might be
                          >> located. To do that, we need to know what you have, what you are
                          >> doing, and what the symptoms are. Partial information, mixed up
                          >> results, and unrelated information provided just makes it that much
                          >> more difficult to help you.
                          >>
                          >>> I guess I could always find the 2.2k resistor you talk about and take
                          >>> it out of there sience I don’t need HT use at all,sience this is the
                          >>> only
                          >>> problem I'm having is it wont stay out of HT mode but again why do
                          >>> this and risk really messing up the unit.
                          >>
                          >> Well, if you took the OT2 out of the mix, that would get rid of the
                          >> problem as well, but that's not really a good solution, is it? As for
                          >> that being the only problem, I don't think so. Have you determined why
                          >> you weren't able to get messaging working? I sent a message that you
                          >> obviously received, and replied to. Have you gotten messaging working?
                          >> Looks like a lot of attempts from you to send messages to N7HRI, but
                          >> not successfully.
                          >>
                          >>> I was thinking just maybe I was doing something wroung until I seen
                          >>> this past email from this person and I took the unit out of the box and
                          >>> did seen a lot of solder points just about touching each other and I
                          >>> can see how they would touch each other very easy.
                          >>
                          >> Yes, Scott has had some issues with contract manufacturer quality
                          >> control, but that does not mean that every unit has the exact same
                          >> issue. If I ran mine over with my truck, and said that the board was
                          >> cracked, would you automatically assume that your board is cracked as
                          >> well?
                          >>
                          >>> but I'm noting going to get upset or try to start any fights on group.
                          >>> the easy fix is have someone that knows what they are doing take
                          >>> a look at it, I have already made plans to go home tuesday to get
                          >>> the box and packing and get it mailed out.
                          >>
                          >> Okay, so you take the OT2 box it up, send it to Scott, and he looks at
                          >> it. Best case scenario, he finds some solder bridges, or long
                          >> component leads that are shorting out on you. The other option is that
                          >> he checks it all out and finds no issues. He sends it back to you, and
                          >> now we are right back where we are now.
                          >>
                          >> Systematic experimentation now might save you the time and expense of
                          >> sending a perfectly good unit back to Scott.
                          >>
                          >> There are a lot of little twiddly bits to deal with, and niggly little
                          >> details that can cause issues. When everything is working, everyone is
                          >> happy. When things don't work, it can be annoying, but you can usually
                          >> find the problem and rectify it. However, when the issue is
                          >> intermittent, it can drive you batty trying to find the cause and
                          >> solution.
                          >>
                          >> We're just working on finding the cause before we all go batty! 8)
                          >>
                          >> James
                          >> VE6SRV
                          >>
                          >>
                          >> ------------------------------------
                          >>
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                          >>
                          >>
                          >>
                          >>
                          >
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                        • n0rxd
                          That was my problem exactly - the long lead on the crystal was shorted to the case. I bent it out of the way and now it s working like a champ, thanks. I
                          Message 12 of 16 , Jan 2, 2010
                            That was my problem exactly - the long lead on the crystal was shorted to the case. I bent it out of the way and now it's working like a champ, thanks.

                            I haven't tried it out of the house yet but when I do it will be colder than your truck - it's only 2 above here today.

                            Mark N0RXD

                            --- In tracker2@yahoogroups.com, "n5faz" <n5faz@...> wrote:
                            >
                            > mark, scott,
                            >
                            > i had the same issue with my brand new tracker2. if i took the board completely out of the case it would receive. it appeared that one lead on the crystal on the left side of the board was shorting to the case nut. trim the leads, reassemble and receive ok.
                            >
                            > now my unit has developed a another problem. it intermittently wont power up. it works most of the time on the bench with an ac adapter. but when getting power from the radio in the truck, it does not work most of the time. i then wired a seperate power cord for the tracker. that seemed to help but didnt fix the problem. other times it will work for a few minutes then lockup with no rx and no responce on the console. the gps connected to the tracker2's 5v output always works.
                            >
                            > some of the symptoms it has when not working are:
                            > green led lites up dim and the others dont flash,
                            > or after a few seconds the act led will flash red red green very slowly then a few seconds later the rx, tx leds will flash but the unit still wont rx or respond to the console.
                            >
                            > i dont think it is a power problem, i think the problem is tempature related as it works much more reliably in the 70+ degree house than in the less than 40 degree truck.
                            >
                            > also the quality of the hand soldered parts does not appear to be very good.
                            >
                            > i am planning on sending my unit back for a replacement.
                            >
                            > paul n5faz
                            >
                            >
                            > --- In tracker2@yahoogroups.com, Scott Miller <scott@> wrote:
                            > >
                            > > I thought I'd posted the new schematic - I'll have to make sure that
                            > > gets on the wiki.
                            > >
                            > > Check for any visible bad solder joints. It was tested before it left,
                            > > so if it's not working now, chances are it's something that came loose
                            > > afterward. You're welcome to send it back for inspection, but I'll be
                            > > gone Thursday and Friday for CES.
                            > >
                            > > Scott
                            >
                          • Scott Miller
                            I ve sent a note to the contract manufacturer to make sure those leads get cut off flush in the future, and I ll inspect them as they come in. This didn t get
                            Message 13 of 16 , Jan 2, 2010
                              I've sent a note to the contract manufacturer to make sure those leads
                              get cut off flush in the future, and I'll inspect them as they come in.

                              This didn't get caught in testing because RX is tested while the board
                              is on a test fixture, and not installed in the case. The final
                              post-assembly test just checks that it powers on and that the LEDs and
                              DC power jack are OK. The assembled test units I've been using had the
                              lead cut short enough, apparently.

                              Sorry about that, and thanks for the catch.

                              Scott

                              n0rxd wrote:
                              >
                              >
                              >
                              > That was my problem exactly - the long lead on the crystal was shorted
                              > to the case. I bent it out of the way and now it's working like a champ,
                              > thanks.
                            • Scott Miller
                              ... These might be related. Check the soldering on crystal Y1 if you haven t sent it back yet - I encountered one unit in testing that had a bad solder joint
                              Message 14 of 16 , Jan 2, 2010
                                > some of the symptoms it has when not working are:
                                > green led lites up dim and the others dont flash,
                                > or after a few seconds the act led will flash red red green very slowly
                                > then a few seconds later the rx, tx leds will flash but the unit still
                                > wont rx or respond to the console.
                                >
                                > i dont think it is a power problem, i think the problem is tempature
                                > related as it works much more reliably in the 70+ degree house than in
                                > the less than 40 degree truck.
                                >
                                > also the quality of the hand soldered parts does not appear to be very good.

                                These might be related. Check the soldering on crystal Y1 if you
                                haven't sent it back yet - I encountered one unit in testing that had a
                                bad solder joint there, which would cause the problems you're describing.

                                What specifically looks wrong with the hand soldered parts? This is the
                                first batch of OT2ms I've had assembled in the US, and I'm going to be
                                very upset if the quality turns out to be worse than the
                                Chinese-assembled units.

                                > i am planning on sending my unit back for a replacement.

                                I'll be watching for it. I'm supposed to have more boards in on Monday,
                                but with the way things have been going I'm not going to expect anything
                                until Wednesday.

                                Scott
                              • Scott Miller
                                I m having trouble following the HT PTT thing, but it sounds like maybe PTT is just plain broken on the T2 and you re seeing it stuck on when the HT jumper is
                                Message 15 of 16 , Jan 2, 2010
                                  I'm having trouble following the HT PTT thing, but it sounds like maybe
                                  PTT is just plain broken on the T2 and you're seeing it stuck on when
                                  the HT jumper is set, which would be normal for a mobile.

                                  With it plugged into the mobile, and the HT jumper removed, what happens
                                  when you use the PTT button in the diagnostic menu?

                                  Scott

                                  wyoming_semi_driver@... wrote:
                                  >
                                  >
                                  > because I have a HT that has very bad RFI problems but I can use it to
                                  > test stuff. when the tracker2 stops TX on my mobile I hook up the HT to
                                  > the tracker2 asap and the PTT lights come on the top of the HT and then
                                  > after a wile of waiting sometimes it will let go of the HT mode and go
                                  > back to the mobile mode on it by itself but now it is staying in HT mode
                                  > and NO the HT jumper isnt installed at all. I'm able to change the
                                  > commands on my tracker2 via my nuvi 350 duh. I can hear the sound coming
                                  > from the HT with using another radio I don’t need a scope to know this.
                                  > but I'm also not much into trying to fix stuff I don’t know much about,
                                  > when you do this you just mess it up even wost. I have been able to get
                                  > a opentracker and a TT4 working so I do know how to do some stuff. I
                                  > guess I could always find the 2.2k resistor you talk about and take it
                                  > out of there sience I don’t need HT use at all,sience this is the only
                                  > problem I'm having is it wont stay out of HT mode but again why do this
                                  > and risk really messing up the unit. I was thinking just maybe I was
                                  > doing something wroung until I seen this past email from this person and
                                  > I took the unit out of the box and did seen a lot of solder points just
                                  > about touching each other and I can see how they would touch each other
                                  > very easy. but I'm noting going to get upset or try to start any fights
                                  > on group. the easy fix is have someone that knows what they are doing
                                  > take a look at it, I have already made plans to go home tuesday to get
                                  > the box and packing and get it mailed out.
                                  > 73
                                  > K7CDL
                                  > Ron Swart
                                  >
                                  > *From:* James Ewen <mailto:ve6srv@...>
                                  > *Sent:* Saturday, January 02, 2010 12:32 PM
                                  > *To:* tracker2@yahoogroups.com <mailto:tracker2@yahoogroups.com>
                                  > *Subject:* Re: [tracker2] Re: OT2m version 2.0a
                                  >
                                  >
                                  >
                                  > On Sat, Jan 2, 2010 at 11:57 AM, Ron K7CDL
                                  > <wyoming_semi_driver@...
                                  > <mailto:wyoming_semi_driver@...>> wrote:
                                  >
                                  > > the tracker2 went back into HT mode last night without the HT
                                  > > jumper in place again last night for like the 5th time in a week.
                                  >
                                  > Okay, I'm baffled... how do you know that the unit is in HT mode?
                                  >
                                  > The easy way to tell would be to look at the jumper and see that it is
                                  > across the HT pins.
                                  >
                                  > The HT jumper couples the PTT out to the audio out line via a 2.2K
                                  > resistor. Have you been able to confirm that you are seeing the PTT
                                  > assertion on the audio line by monitoring the audio line with a meter
                                  > or scope?
                                  >
                                  > > i have used the change the setting by the gps commands a lot of time.
                                  >
                                  > To do what? You are not able to change the HT setting via the command
                                  > console, which is what I am thinking that you are talking about.
                                  >
                                  > You can spend a lot of time trying to fix a problem that doesn't
                                  > exist. I'm not convinced that you have a problem with the HT setting.
                                  > The information you have provided so far is insufficient to be able to
                                  > confirm or deny the suggested issue.
                                  >
                                  > James
                                  > VE6SRV
                                  >
                                  >
                                • wyoming_semi_driver@hotmail.com
                                  right now mobile isnt working at all even with the HT jump pulled but HT is working. I cant get mobile to work at all now. it was working off and on and now no
                                  Message 16 of 16 , Jan 2, 2010
                                    right now mobile isnt working at all even with the HT jump pulled but HT is
                                    working. I cant get mobile to work at all now. it was working off and on and
                                    now no mobile. its like HT is stuck on even with HT jumper pulled.

                                    --------------------------------------------------
                                    From: "Scott Miller" <scott@...>
                                    Sent: Saturday, January 02, 2010 5:52 PM
                                    To: <tracker2@yahoogroups.com>
                                    Subject: Re: [tracker2] Re: OT2m version 2.0a

                                    > I'm having trouble following the HT PTT thing, but it sounds like maybe
                                    > PTT is just plain broken on the T2 and you're seeing it stuck on when
                                    > the HT jumper is set, which would be normal for a mobile.
                                    >
                                    > With it plugged into the mobile, and the HT jumper removed, what happens
                                    > when you use the PTT button in the diagnostic menu?
                                    >
                                    > Scott
                                    >
                                    > wyoming_semi_driver@... wrote:
                                    >>
                                    >>
                                    >> because I have a HT that has very bad RFI problems but I can use it to
                                    >> test stuff. when the tracker2 stops TX on my mobile I hook up the HT to
                                    >> the tracker2 asap and the PTT lights come on the top of the HT and then
                                    >> after a wile of waiting sometimes it will let go of the HT mode and go
                                    >> back to the mobile mode on it by itself but now it is staying in HT mode
                                    >> and NO the HT jumper isnt installed at all. I'm able to change the
                                    >> commands on my tracker2 via my nuvi 350 duh. I can hear the sound coming
                                    >> from the HT with using another radio I don’t need a scope to know this.
                                    >> but I'm also not much into trying to fix stuff I don’t know much about,
                                    >> when you do this you just mess it up even wost. I have been able to get
                                    >> a opentracker and a TT4 working so I do know how to do some stuff. I
                                    >> guess I could always find the 2.2k resistor you talk about and take it
                                    >> out of there sience I don’t need HT use at all,sience this is the only
                                    >> problem I'm having is it wont stay out of HT mode but again why do this
                                    >> and risk really messing up the unit. I was thinking just maybe I was
                                    >> doing something wroung until I seen this past email from this person and
                                    >> I took the unit out of the box and did seen a lot of solder points just
                                    >> about touching each other and I can see how they would touch each other
                                    >> very easy. but I'm noting going to get upset or try to start any fights
                                    >> on group. the easy fix is have someone that knows what they are doing
                                    >> take a look at it, I have already made plans to go home tuesday to get
                                    >> the box and packing and get it mailed out.
                                    >> 73
                                    >> K7CDL
                                    >> Ron Swart
                                    >>
                                    >> *From:* James Ewen <mailto:ve6srv@...>
                                    >> *Sent:* Saturday, January 02, 2010 12:32 PM
                                    >> *To:* tracker2@yahoogroups.com <mailto:tracker2@yahoogroups.com>
                                    >> *Subject:* Re: [tracker2] Re: OT2m version 2.0a
                                    >>
                                    >>
                                    >>
                                    >> On Sat, Jan 2, 2010 at 11:57 AM, Ron K7CDL
                                    >> <wyoming_semi_driver@...
                                    >> <mailto:wyoming_semi_driver@...>> wrote:
                                    >>
                                    >> > the tracker2 went back into HT mode last night without the HT
                                    >> > jumper in place again last night for like the 5th time in a week.
                                    >>
                                    >> Okay, I'm baffled... how do you know that the unit is in HT mode?
                                    >>
                                    >> The easy way to tell would be to look at the jumper and see that it is
                                    >> across the HT pins.
                                    >>
                                    >> The HT jumper couples the PTT out to the audio out line via a 2.2K
                                    >> resistor. Have you been able to confirm that you are seeing the PTT
                                    >> assertion on the audio line by monitoring the audio line with a meter
                                    >> or scope?
                                    >>
                                    >> > i have used the change the setting by the gps commands a lot of time.
                                    >>
                                    >> To do what? You are not able to change the HT setting via the command
                                    >> console, which is what I am thinking that you are talking about.
                                    >>
                                    >> You can spend a lot of time trying to fix a problem that doesn't
                                    >> exist. I'm not convinced that you have a problem with the HT setting.
                                    >> The information you have provided so far is insufficient to be able to
                                    >> confirm or deny the suggested issue.
                                    >>
                                    >> James
                                    >> VE6SRV
                                    >>
                                    >>
                                    >
                                    >
                                    >
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