[OZAPRS] Tiny trak 4 help please

Thu Nov 5 12:52:26 EST 2009

Hi Paul,

I used squelched output from the audio jack. Like yourself, I found that the
decoder was going flat out otherwise. Please note that I only do APRS on 2m
FM and it will probably be different for HF.

My TT4 runs from an Icom T22 Handheld from the audio output jack. I have
also used the output from the mini-DIN on the back of my FT-7800
successfully.

I had a little trouble getting my firmware to load initially, but the
problem ended up being between the chair and keyboard (ie me!).

Good luck and hope this helps.

73, de Alex VK2RZ

-----Original Message-----
From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On
Behalf Of Paul Mullins
Sent: Thursday, 5 November 2009 11:03
To: Australian APRS Users
Subject: Re: [OZAPRS] Tiny trak 4 help please

Yes I do understand this.
question is the audio point you using squelched or do you have a 
straight fm output, I have noticed  that if there is a signal during the 
no packet time (quite time I like to call it)  the numbers in the 
monitor could be any thing and then finally you get a packet the number 
changes to 60 it should work, some times.
it looks like the dsp is running flat out decoding nothing, so this is 
that question I ask, should the audio be squelched before a packet is 
received this is a question I would like an answer to, be nice.
or should I just use the speaker out put, yuck most speaker out puts 
have a floating voltage and then the audio superimposed its the dc level 
that I see might be the problem, a cap should fix that.

So people that have working decoding TinyTrack units what is your source 
of audio for decode??

looking forward to the next set of replys

Paul

Still confused as all hell

cheers and 73s'

vk2hlt at netspace.net.au wrote:
> Guys I cant stress enough how critical the rx audio level adjustment is !
if it
> is too low or too high it will never work ( decode ), I just had a play
with
> mine and for me it seems high 30 to mid 40 seems to be the ideal level of
rx
> audio to decode nicely, it is a very simple job to adjust as the manual
> explains, type "monitor", while the radio is recieving packets watch the
level
> it will fluctuate from 1 while there is no traffic to whatever it peaks at
with
> packet traffic, try your peaks at 50 odd and go up or down from there with
trial
> and error, The problems you guys have been having was my exact problem,
which I
> fixed by doing the above.
> Tim VK2HLT
>
> Quoting RK <vk3ant at optusnet.com.au>:
>
>   
>> Paul Mullins wrote:
>>     
>>> Hi all,
>>> I am a very keen satellite operator, and just starting out in the world
>>> of APRS love the idea and concept.
>>> I am understanding that there are others that are using tinytrak4 units.
>>> Has anybody played with the alpha version firmware and hooked up a lcd
>>> screen, has anybody got it working?
>>> Due to the so well written manual and software for the tracker version,
>>> has anybody got that working correctly.
>>> Mine is doing stupid things, have to program it via primary serial port
>>> (yes I know) and also have to run the gps on the same port.
>>> This makes it very hard to program the unit with the gps hard wired, any
>>> ideas.
>>> Whilst I am on my soap box, when the unit was in alpha it followed the
>>> instructions to the letter and could not get it to decode a single
>>> packet, same said for it in tracker mode.
>>> Funny think is both TT4s' are doing the same thing I have even put one
>>> into  kiss and ran software to monitor, and still no decodes, that unit
>>> is connected to my icom  ic-821h.
>>> I have is hooked up in the same fashion as I use the receiver for weak
>>> signal decoding and eme.
>>> I have tried 4 other types of radio all end up having the same problem
>>> tx works find but no decode.
>>> If some one has a working setup file for any of this I would love to see
>>>       
>> it.
>>     
>>> Whilst I am making my self look stupid the TNC2 (mfj 1270b) that TXs'
>>> and like normal no RX.
>>>
>>> Hoping some one could set me straight, or I just throw it all in the
bin.
>>>
>>> cheers Paul
>>>
>>> sorry about that, but been working on this for about 5 days now with
>>> limited success lots of time read document of the web.
>>>
>>> _______________________________________________
>>> OZAPRS mailing list
>>> OZAPRS at aprs.net.au
>>> http://lists.aprs.net.au/mailman/listinfo/ozaprs
>>>
>>>
>>>
>>>
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>>>
>>>       
>> G'day Paul.
>>
>> Well, I wish you luck, I am having all sorts of problems with my TT4
>> also. Mine has been sitting back on the shelf for the past 4 weeks, play
>> around with it for a while, get tired of it not playing the game, back
>> on the shelf it goes until another time.
>>
>> Asked questions here, had some very kind and clever people give me  help
>> and replies, still not going.
>>
>> Anyway, keep at it, guess someone will sort it out someday, hope they
>> spread the word.
>>
>> Ron
>> VK3ANT
>>
>>
>>
>>
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>>
>>     
>
>
>
>
>
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