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Re: [tracker2] OT-3 Basic / NUVI APRS setup questions

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  • Kevin Shea
    Sorry Scott, I meant to say mic adapter plug for pwr not co axle. For usb option, any disadvantage in ot3 features to bypassing the ot3 regulator? This is 5@
    Message 1 of 5 , May 28, 2013
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      Sorry Scott, I meant to say mic adapter plug for pwr not co axle.

      For usb option, any disadvantage in ot3 features to bypassing the ot3 regulator? This is 5@ volts, right?

      Thanks
      Sent from my iPod

      On May 28, 2013, at 12:25 AM, Scott Miller <scott@...> wrote:

      > > Question #1: I'm not using a mobile HAM deck, (HT) so I cannot use a
      > > co-axle plug conv. to send power (DB-9 serial)to pin 7 (and ground) to
      > > power the OT-3. So I will need to fashion a power source (12v cell phone
      >
      > I'm not sure I follow. You've got 3 common ways to power the T3:
      >
      > 1. Coaxial plug
      > 2. Radio connector pins 6 and 7
      > 3. USB
      >
      > Options 1 and 2 go through the regulator, and can handle anything up to
      > 28 VDC, but I'd recommend keeping it lower than that for efficiency.
      > Down to 6 V is probably OK. The regulator output will start sagging,
      > but the T3 can run at lower voltages than the T2 could.
      >
      > When using USB power, it's bypassing the regulator. If you've got a USB
      > battery pack this might be the most efficient option, depending on the
      > pack's converter efficiency.
      >
      > > Question #2: Do I still need to use the Argent GPS "Puck" with the OT-3
      > > or does the Garmin NUVI 350 via mini B to serial p/n 010-10813-00 wire
      > > from Argent provide GPS data to the OT3?
      >
      > Nope, the nuvi also sends position, velocity, and time.
      >
      > Scott
      >
    • Scott Miller
      USB supplies regulated 5V power, so that s fine. Scott
      Message 2 of 5 , May 28, 2013
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        USB supplies regulated 5V power, so that's fine.

        Scott

        On 5/28/2013 12:59 AM, Kevin Shea wrote:
        > Sorry Scott, I meant to say mic adapter plug for pwr not co axle.
        >
        > For usb option, any disadvantage in ot3 features to bypassing the ot3
        > regulator? This is 5@ volts, right?
        >
        > Thanks
        > Sent from my iPod
        >
        > On May 28, 2013, at 12:25 AM, Scott Miller <scott@...
        > <mailto:scott%40opentrac.org>> wrote:
        >
        > > > Question #1: I'm not using a mobile HAM deck, (HT) so I cannot use a
        > > > co-axle plug conv. to send power (DB-9 serial)to pin 7 (and ground) to
        > > > power the OT-3. So I will need to fashion a power source (12v cell
        > phone
        > >
        > > I'm not sure I follow. You've got 3 common ways to power the T3:
        > >
        > > 1. Coaxial plug
        > > 2. Radio connector pins 6 and 7
        > > 3. USB
        > >
        > > Options 1 and 2 go through the regulator, and can handle anything up to
        > > 28 VDC, but I'd recommend keeping it lower than that for efficiency.
        > > Down to 6 V is probably OK. The regulator output will start sagging,
        > > but the T3 can run at lower voltages than the T2 could.
        > >
        > > When using USB power, it's bypassing the regulator. If you've got a USB
        > > battery pack this might be the most efficient option, depending on the
        > > pack's converter efficiency.
        > >
        > > > Question #2: Do I still need to use the Argent GPS "Puck" with the OT-3
        > > > or does the Garmin NUVI 350 via mini B to serial p/n 010-10813-00 wire
        > > > from Argent provide GPS data to the OT3?
        > >
        > > Nope, the nuvi also sends position, velocity, and time.
        > >
        > > Scott
        > >
        >
        >
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