[OZAPRS] TinyTrack3 Plus GPS Combo- Problems

[David and Justine Olsen]

I didn't fully answer you questions
The TT3plus comes with a power cable with cigarette lighter plug.  
This supplies 12V power to the TT3Plus, which in turn supplies 5V via  
the serial connection, to the GPS2.
In the shack for configuration and testing I use a gel cell. In the  
car, the 12V (permanently on) cig lighter socket.

David


On 13 Apr 2009, at 20:34, David and Justine Olsen wrote:

> The TT3Plus was supplied as a GPS combo, that is it is supposed to  
> work with the supplied GPS,  a Byonics GPS 2
> The TT3 Plus is supposed to supply 5V via pin 4 of the serial  
> connector (DB9) which is enough to supply the GPS 2 according to  
> Byonics.
>
> David
>
>
>
>
>
> On 13 Apr 2009, at 20:29, Michael Carey wrote:
>
>> What type of GPS are you using, how are you powering both the GPS  
>> and the TT3. Are you supplying 12V through the radio connector and  
>> using the TT3 onboard 5V regulator to supply 5V to the GPS? Did  
>> you get the TT3+ with the bigger 5V regulator? The 78L05 reg in a  
>> normal TT3 isn't up to powering a lot of 5V GPS receivers as well  
>> as the TT3 circuit.
>>
>> Michael.
>> VK5ZEA
>>
>> David and Justine Olsen wrote:
>>> I purchased a fully built (not kit) TT3 Plus with GPS. It arrived  
>>> today, and I expected to be able to configure it an be on the air  
>>> in no time.
>>>
>>> Apart from the fact it came with the wrong radio to TT3 cable,  
>>> there seems to be other issues.
>>>
>>> I configured the TT3 using the software provided, then attached  
>>> to power and GPS (couldn't attach to radio as the wrong cable was  
>>> supplied).
>>>
>>> The lights flash as they should, but the GPS Valid (green light)  
>>> does not come on. I left the GPS powered for hours, but still  
>>> nothing. I changed the configuration to allow TTL send, and the  
>>> lights flashed in the correct fashion, but still no solid green  
>>> light. The J7 jumper is configured for 5Volts which is correct  
>>> for the GPS I am using.
>>>
>>> I do not have a laptop so I can't run GPS  terminal software in a  
>>> place where the GPS can see the sky but being new, surely it  
>>> works :-).
>>>
>>> Any ideas???
>>>
>>> David VK4MDX
>>> _______________________________________________
>>> Ozaprs mailing list
>>> Ozaprs at aprs.net.au
>>> http://aprs.net.au/mailman/listinfo/ozaprs
>>>
>>
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>
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