[OZAPRS] TT3 works on HF but not on VHF

[David and Justine Olsen]

Russ

Thanks for that info
I have adjusted R6 across full scale to no avail so I think you have  
the answer.

David


On 27 Apr 2009, at 02:07, Russell wrote:

> Hi David,
>
> Just checking ,  The TT3 is set basically for hand held operation  
> when first
> constructed. (microphone input grounded)
>
> If you use the TT3 for mobile use it is advisable to remove R8 a 2K  
> resistor
> from the board (just cut it, or switch it)
>
> Regards
>
> Russ  VK2VK
>
>
>
>
> -------Original Message-------
>
> From: David and Justine Olsen
> Date: 25-April-2009 5:41:19 PM
> To: Australian APRS Users
> Subject: [OZAPRS] TT3 works on HF but not on VHF
>
> I got my replacement TT3 which now shows a valid GPS light, and I
> tested it on 40m and it worked fine. I then reconfigured it for VHF
> and tested it on my mobile antenna but no success. It transmits fine
> and I receive it on my base.
> Thinking my mobile which is very immobile at present (repairs) had a
> dicky antenna or was located in a bad spot, I then set up the same
> radio and TT# on my 2 meter J beam which I normally use to access the
> repeater- still no luck.
>
> The TT3 is configured.
>
> Callsign VK4MDX-9
> Digi Path WIDE1-1, WIDE2-1
> SYMBOL J
> TABLE OVERLAY /
> Auto TX delay 300
> Auto Tx Rate 120
> Manual Tx Delay 133
> Quiet Time 526
> Calibration 128
> Nothing else enabled.
>
> The TT3 is connected to GPS and show valid GPS and transmits-
> confirmed receive signal on my Kenwood 2m rig.
> My radio is an Icom706MkIIG
> The TT3 triggers transmit via the mic socket
> The rig dial is set to 145.175 MHz
>
> Why is my signal not decoded and not appear on the internet?
>
> David
>
> VK4MDX
>
>
>
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