USB supplies regulated 5V power, so that's fine.
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?
> 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
> > 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