[aprssig] Ideal Tracker Spec
noskosteve at yahoo.com
Wed Dec 5 17:54:04 CST 2012
I'm thinking about battery size and duration.
OK. I wonder what I draw the CNSP payloads have. They have something like 60 hours run time. Their draw must be something like 16.7 ma. which is for 1000 mah battery (I'm guessing - which I think they could have in that small payload).
Your ARM unit would need 15 Amp-Hours of battery (Ignoring the TX part as an estimate). It this correct?
73, Steve, K9DCI
73, Steve, K9DCI USN (Vet) MOT (Ret) Ham (Yet)
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--- On Wed, 12/5/12, Bryan Hoyer <bhhoyer at gmail.com> wrote:
> From: Bryan Hoyer <bhhoyer at gmail.com>
> Subject: Re: [aprssig] Ideal Tracker Spec
> To: "TAPR APRS Mailing List" <aprssig at tapr.org>
> Date: Wednesday, December 5, 2012, 4:35 PM
> Preliminary Current at 12VDC
> Receive ~250ma
> Transmit 25W 5A
> On Dec 5, 2012, at 12:32 PM, Steve Noskowicz <noskosteve at yahoo.com>
> > That's a lot of bandwidth. What kind of power
> > 73, Steve, K9DCI USN (Vet) MOT (Ret)
> Ham (Yet)
> > --- On Wed, 12/5/12, Bryan Hoyer <bhhoyer at gmail.com>
> >> We are currently implementing a
> >> Tracker Function for our UDR56K radio with a USB
> GPS. (For
> >> more info on the radio www.nwdigitalradio.com)
> >> Most trackers are implemented in small micros with
> >> resources whereas we have an 800MHz Arm (no
> floating point)
> >> running Linux 3.x kernel. The project will be
> >> Time to think outside the box. We have access to
> RSSI which
> >> is absent in the conventional GPS>TNC>RADIO
> >> What features are must haves and what feature have
> >> always wanted.
> >> I assume you've all been nice this year, you have
> >> ear
> >> Bryan Hoyer K7UDR
> > _______________________________________________
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> > aprssig at tapr.org
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