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Re: USB Soundcard

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  • g4ilo
    Hi Fred. I did think about putting a USB interface into my K2. There is plenty of space inside it since it is the 10W version. Instead I made up an external
    Message 1 of 13 , Oct 23, 2010
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      Hi Fred.

      I did think about putting a USB interface into my K2. There is plenty of space inside it since it is the 10W version. Instead I made up an external interface. You can read about it here: http://www.g4ilo.com/usblink.html. This is what I use for HF APRS (or would be using if my K2 wasn't in two halves at the moment.) It has VOX to solve the problem of two sound card programs (TrueTTY and APRS Messenger) both needing to PTT. The VOX circuit is based on the one by Skip Teller KH6TY in QST about 18 months ago.

      The knobs on the SignaLink are handy to adjust the power for PSK31 when you are using different bands but if you are just going to operate on a fixed frequency with APRS you can just set it up using the computer mixer sliders and leave it.

      Julian, G4ILO

      --- In aprsisce@yahoogroups.com, "Fred Hillhouse Jr" <fmhillhouse@...> wrote:
      >
      > Hi Julian,
      >
      >
      >
      > I have wanted to do an I-Gate at home for some time. Learning about TrueTTY
      > and other options is good. For home, I figure I could use the audio ports
      > and a serial port; these exist on the desk top. A separate sound card is
      > probably the answer.
      >
      >
      >
      > I was thinking also about a mobile setup. Since I have been playing with
      > APRSIS32 mobile, I got thinking that a USB sound card could actually reside
      > in a radio. Mine is probably big enough to fit one. I don't know how much
      > interference there would be but then that is one reason to try it. The
      > SignaLink looks really nice. It is a bit big and the audio controls are
      > knobs. I would prefer digital pots and everything control through the USB
      > interface. Can't have everything.
      >
      >
      >
      > Later!
      >
      > Fred
      >
      >
      >
      >
      >
      >
      >
      >
      >
      >
      >
      > _____
      >
      > From: aprsisce@yahoogroups.com [mailto:aprsisce@yahoogroups.com] On Behalf
      > Of g4ilo
      > Sent: Saturday, October 23, 2010 4:10 AM
      > To: aprsisce@yahoogroups.com
      > Subject: [aprsisce] Re: USB Soundcard
      >
      >
      >
      >
      >
      > You could probably do two channels using two separate instances of TrueTTY.
      > The only trouble with that is you would then need two sound cards and two
      > serial ports.
      >
      > One reason why you might want to use TrueTTY anyway is that it uses the
      > 11025Hz sample rate. AGWPE uses 22050 I believe and many of the cheap USB
      > sound devices (and even some of the on board sound cards) apparently have
      > trouble with that. It looks like it is working but you don't decode any
      > packets.
      >
      > Julian, G4ILO
      >
      > --- In aprsisce@yahoogroups.com <mailto:aprsisce%40yahoogroups.com> , "Lynn
      > W Deffenbaugh (Mr)" <kj4erj@> wrote:
      > >
      > > APRSISCE/32 still only supports a single channel via AGW. My 2m IGate
      > > is actually a completely setup so that it is available 24x7, unlike my
      > > laptop that sometimes shuts down to go mobile. My 2m is a copper cactus
      > > antenna at 20ft feeding an iCom T22A HT connected to a TinyTrak4
      > > (KJ4ERJ-7) with a serial bluetooth device. Skip the 60 foot air gap
      > > lightning arrestor (aka Bluetooth) and you arrive at my server running
      > > APRSIS32 as the IGate and WIDE1 Digi (KJ4ERJ-1).
      > >
      > > Eventually, I hope to relocate the 30m setup to the server, but it will
      > > continue to be a separate APRSIS32 instance (KJ4ERJ-2) to assist me in
      > > knowing what's working and what's not and to keep one up if the other
      > > happens to fail for some reason.
      > >
      > > Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
      > >
      > > Fred Hillhouse wrote:
      > > >
      > > >
      > > > Hi Lynn,
      > > >
      > > > That sounds like what I am looking for. Are you running 2 channels;
      > > > 30M and 2M? Can it do 2 radios at once?
      > > >
      > > > Thanks!
      > > >
      > > > Fred
      > > >
      > > >
      > > > ----------------------------------------------------------
      > > > *From:* aprsisce@yahoogroups.com <mailto:aprsisce%40yahoogroups.com>
      > [mailto:aprsisce@yahoogroups.com <mailto:aprsisce%40yahoogroups.com> ]
      > > > *On Behalf Of *Lynn W Deffenbaugh (Mr)
      > > > *Sent:* Friday, October 22, 2010 11:15
      > > > *To:* aprsisce@yahoogroups.com <mailto:aprsisce%40yahoogroups.com>
      > > > *Subject:* Re: [aprsisce] USB Soundcard
      > > >
      > > >
      > > >
      > > > Fred,
      > > >
      > > > I finally have a Signalink USB bridging my laptop to my iCom 706.
      > > > I use
      > > > this via AGW PEpro concurrent with APRS Messenger to do 30m APRS both
      > > > AX.25 and PSKnn. I was originally monitoring 30m receive-only with
      > > > just
      > > > an isolation transformer connecting the phone output on the radio to
      > > > line in on the PC.
      > > >
      > > > As I see it, the Signalink USB was worth it to me because it:
      > > >
      > > > 1) Provides a completely new sound card to windows. I don't have to
      > > > worry about windows sounds going out over the air.
      > > >
      > > > 2) Provides a single plug interface (USB) to my PC. Not a trio of
      > > > connections (line in/microphone, line out/speakers, COM PTT).
      > > >
      > > > 3) The have a direct control cable for the iCom 706 as well as a
      > > > pre-configured jumper header.
      > > >
      > > > Installation was so easy that even this software-type did it by
      > > > himself. Install the jumper header, connect a cable to the radio
      > > > and a
      > > > USB cable to the PC and the hardware is done. Windows 7 64 bit was
      > > > not
      > > > a problem, but there is a minor Mixer setting that you need to do
      > > > (per
      > > > software program) to allow the PTT to work (the software needs to
      > > > be at
      > > > 50%).
      > > >
      > > > APRSIS32 has a TEXT port to APRS Messenger and an AGW port to
      > > > PEpro and
      > > > I'm online IGating both. As soon as I get more development time,
      > > > APRSISCE/32 will play nicer with the dual interface onto a single
      > > > radio
      > > > (like staggered transmissions between the two RF ports).
      > > >
      > > > Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
      > > >
      > > > Fred Hillhouse wrote:
      > > > > Greetings,
      > > > >
      > > > > I am curious if anyone is using a USB sound card for connecting
      > > > directly to
      > > > > a radio. I think I would like to run an instance of APRSIS32
      > > > through one. I
      > > > > am looking for opinion, conjecture, recommendations, etc.
      > > > >
      > > > > The basic goal is obviously APRS (144.39) but to be able to work
      > > > on 30M
      > > > > would be nice too. I am thinking the MIC and OUTPUT (line out
      > > > preferred?)
      > > > > need to have two channels.
      > > > >
      > > > > Thanks!
      > > > >
      > > > > Best regards,
      > > > > Fred
      > > > >
      > > >
      > > >
      > > >
      > > >
      > > >
      > >
      >
    • Robin Williams
      Hi Julian, Where does one get this TrueTTY and price. Cheers, Robin. ... From: aprsisce@yahoogroups.com [mailto:aprsisce@yahoogroups.com] On Behalf Of g4ilo
      Message 2 of 13 , Oct 25, 2010
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        Hi Julian,
        Where does one get this TrueTTY and price.
        Cheers,
        Robin.

        -----Original Message-----
        From: aprsisce@yahoogroups.com [mailto:aprsisce@yahoogroups.com] On Behalf
        Of g4ilo
        Sent: Saturday, 23 October 2010 9:10 p.m.
        To: aprsisce@yahoogroups.com
        Subject: [aprsisce] Re: USB Soundcard

        You could probably do two channels using two separate instances of TrueTTY.
        The only trouble with that is you would then need two sound cards and two
        serial ports.

        One reason why you might want to use TrueTTY anyway is that it uses the
        11025Hz sample rate. AGWPE uses 22050 I believe and many of the cheap USB
        sound devices (and even some of the on board sound cards) apparently have
        trouble with that. It looks like it is working but you don't decode any
        packets.

        Julian, G4ILO

        --- In aprsisce@yahoogroups.com, "Lynn W Deffenbaugh (Mr)" <kj4erj@...>
        wrote:
        >
        > APRSISCE/32 still only supports a single channel via AGW. My 2m IGate
        > is actually a completely setup so that it is available 24x7, unlike my
        > laptop that sometimes shuts down to go mobile. My 2m is a copper
        > cactus antenna at 20ft feeding an iCom T22A HT connected to a
        > TinyTrak4
        > (KJ4ERJ-7) with a serial bluetooth device. Skip the 60 foot air gap
        > lightning arrestor (aka Bluetooth) and you arrive at my server running
        > APRSIS32 as the IGate and WIDE1 Digi (KJ4ERJ-1).
        >
        > Eventually, I hope to relocate the 30m setup to the server, but it
        > will continue to be a separate APRSIS32 instance (KJ4ERJ-2) to assist
        > me in knowing what's working and what's not and to keep one up if the
        > other happens to fail for some reason.
        >
        > Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32
        >
        > Fred Hillhouse wrote:
        > >
        > >
        > > Hi Lynn,
        > >
        > > That sounds like what I am looking for. Are you running 2 channels;
        > > 30M and 2M? Can it do 2 radios at once?
        > >
        > > Thanks!
        > >
        > > Fred
        > >
        > >
        > >
        ------------------------------------------------------------------------
        > > *From:* aprsisce@yahoogroups.com [mailto:aprsisce@yahoogroups.com]
        > > *On Behalf Of *Lynn W Deffenbaugh (Mr)
        > > *Sent:* Friday, October 22, 2010 11:15
        > > *To:* aprsisce@yahoogroups.com
        > > *Subject:* Re: [aprsisce] USB Soundcard
        > >
        > >
        > >
        > > Fred,
        > >
        > > I finally have a Signalink USB bridging my laptop to my iCom 706.
        > > I use
        > > this via AGW PEpro concurrent with APRS Messenger to do 30m APRS
        both
        > > AX.25 and PSKnn. I was originally monitoring 30m receive-only with
        > > just
        > > an isolation transformer connecting the phone output on the radio to
        > > line in on the PC.
        > >
        > > As I see it, the Signalink USB was worth it to me because it:
        > >
        > > 1) Provides a completely new sound card to windows. I don't have to
        > > worry about windows sounds going out over the air.
        > >
        > > 2) Provides a single plug interface (USB) to my PC. Not a trio of
        > > connections (line in/microphone, line out/speakers, COM PTT).
        > >
        > > 3) The have a direct control cable for the iCom 706 as well as a
        > > pre-configured jumper header.
        > >
        > > Installation was so easy that even this software-type did it by
        > > himself. Install the jumper header, connect a cable to the radio
        > > and a
        > > USB cable to the PC and the hardware is done. Windows 7 64 bit was
        > > not
        > > a problem, but there is a minor Mixer setting that you need to do
        > > (per
        > > software program) to allow the PTT to work (the software needs to
        > > be at
        > > 50%).
        > >
        > > APRSIS32 has a TEXT port to APRS Messenger and an AGW port to
        > > PEpro and
        > > I'm online IGating both. As soon as I get more development time,
        > > APRSISCE/32 will play nicer with the dual interface onto a single
        > > radio
        > > (like staggered transmissions between the two RF ports).
        > >
        > > Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and
        > > Win32
        > >
        > > Fred Hillhouse wrote:
        > > > Greetings,
        > > >
        > > > I am curious if anyone is using a USB sound card for connecting
        > > directly to
        > > > a radio. I think I would like to run an instance of APRSIS32
        > > through one. I
        > > > am looking for opinion, conjecture, recommendations, etc.
        > > >
        > > > The basic goal is obviously APRS (144.39) but to be able to work
        > > on 30M
        > > > would be nice too. I am thinking the MIC and OUTPUT (line out
        > > preferred?)
        > > > need to have two channels.
        > > >
        > > > Thanks!
        > > >
        > > > Best regards,
        > > > Fred
        > > >
        > >
        > >
        > >
        > >
        > >
        >




        ------------------------------------

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        07:34:00
      • g4ilo
        dxsoft.com. $39.
        Message 3 of 13 , Oct 26, 2010
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          dxsoft.com. $39.

          --- In aprsisce@yahoogroups.com, "Robin Williams" <phonetech@...> wrote:
          >
          > Hi Julian,
          > Where does one get this TrueTTY and price.
          > Cheers,
          > Robin.
          >
        • Robin Williams
          thanks ... From: aprsisce@yahoogroups.com [mailto:aprsisce@yahoogroups.com] On Behalf Of g4ilo Sent: Tuesday, 26 October 2010 9:00 p.m. To:
          Message 4 of 13 , Oct 26, 2010
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            thanks

            -----Original Message-----
            From: aprsisce@yahoogroups.com [mailto:aprsisce@yahoogroups.com] On Behalf
            Of g4ilo
            Sent: Tuesday, 26 October 2010 9:00 p.m.
            To: aprsisce@yahoogroups.com
            Subject: [aprsisce] Re: USB Soundcard

            dxsoft.com. $39.

            --- In aprsisce@yahoogroups.com, "Robin Williams" <phonetech@...> wrote:
            >
            > Hi Julian,
            > Where does one get this TrueTTY and price.
            > Cheers,
            > Robin.
            >




            ------------------------------------

            Yahoo! Groups Links



            No virus found in this incoming message.
            Checked by AVG - www.avg.com
            Version: 9.0.862 / Virus Database: 271.1.1/3217 - Release Date: 10/26/10
            07:34:00
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