[OZAPRS] Desert trekking

Ian Bennett ibennett at tpg.com.au
Thu Sep 4 19:11:40 EST 2014


Why send just the callsign if there is no valid position to link it to?? I'm curious as to why you
would do this.
This behavior means you have to have an antenna or dummy load connected when the TT is powered on
(unless the radio is powered separately).

Ian

On 04/09/14 18:45, Dom Dahl wrote:
> The tt3 does beacon when powered on but it doesn't send out a position till GPS is locked. So its
> just the callsign that beacons when powered on. As soon as the GPS locks its send another packet
> with position data.
> 
> Cheers
> 
> Dom
> VK2HJ
> 
> On 04/09/2014 5:30 pm, "Ian Bennett" <ibennett at tpg.com.au <mailto:ibennett at tpg.com.au>> wrote:
> 
>     Putting on my OpenTracker hat, they already do this; all my installations use it. Very handy when
>     testing.
>     The opentrackers also "beacon on power on"; still waiting for that feature to be written into the
>     TinyTrak 4 when in Smart Beaconing mode (18 months and counting).
>     Another annoying habit of the TT3 is it will transmit on power on without GPS lock (even though it
>     was programmed not to). I noticed this on a TT3 buried in a radio borrowed from a mate. No feedback
>     as to when this will be fixed.
>     Rant over.
> 
>     Ian
> 
>     On 04/09/14 17:18, Ian wrote:
>     >> Date: Wed, 3 Sep 2014 21:28:50 +1000
>     >> From: Richard Murnane <richard.murnane at internode.on.net
>     <mailto:richard.murnane at internode.on.net>>
>     >> To: Australian APRS Users <ozaprs at aprs.net.au <mailto:ozaprs at aprs.net.au>>
>     >> Subject: Re: [OZAPRS] Desert trekking
>     >> Message-ID: <B4B8C132-74A7-4274-B980-17087C8835F4 at internode.on.net
>     <mailto:B4B8C132-74A7-4274-B980-17087C8835F4 at internode.on.net>>
>     >> Content-Type: text/plain; charset="windows-1252"
>     >
>     > ~Snip ~
>     >
>     >> I've always thought it would be nice to have a ?beacon now? button
>     >> on the TT3, for those times when you want everyone to know where you
>     >> are right now. Of course, one can always cycle the power and wait a
>     >> minute for the GPS to lock again.
>     >
>     >> 73 Richard VK2SKY
>     >
>     >
>     > I'm going from memory, but didn't some models of the Tinytrack have a 'PTT In' pin on the
>     DE-9, and you could configure it to send off a beacon after the PTT was released? You could
>     connect a push button to ground and a pullup resistor to that, tweak the settings (possibly
>     under MIC-E?) and see how you go.
>     >
>     > Regards,
>     > Ian ZL1VFO
>     >
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