[App_rpt-users] app_rpt and Hamtronics Exciter
lorentedford at gmail.com
Tue Jul 26 07:49:41 EDT 2016
Great to hear!! Good job Ke2n
Loren Tedford (KC9ZHV)
Email: lorentedford at gmail.com
Email: KC9ZHV at KC9ZHV.com
On Tue, Jul 26, 2016 at 6:47 AM, Ramesh Dhami (VA3UV) <Ramesh at va3uv.com>
> Hi All:
> An update to my own post ;)
> I moved the audio from E2 (AF Input) to E5 (modulator input) and made the
> appropriate changes in the usbradio config file. The audio out of the
> repeater sounds a whole bunch better ... night and day difference!!
> No need for a series resistor, since the T302 exciter schematic shows a
> 10K resistor in series with the E5 pad.
> Thanks to Ken, KE2N, for confirming this off-list.
> Ramesh, VA3UV
> On 7/25/2016 1:23 PM, Ramesh Dhami (VA3UV) wrote:
>> Hi Guys:
>> Working on the 2nd 220 repeater project. I have been feeding audio out
>> of my fob into the 'E2 - AF Input' pin of a newer T302 (220MHz) exciter.
>> This exciter is replacing the former T301 exciter.
>> My issue is that the limiter on the exciter seems to be 'a little
>> suspect' - I can set it to ~ 4.8k one day; set my TX levels and then the
>> next day, I find that the limiter seems to have drifted off up to around 6k
>> or even higher!
>> I have been using the E2 input for audio and E5 (modulator input) for PL
>> tone. I am planning on moving the audio input to E5, so essentially
>> feeding E5 with composite voice and PL. I did a quick search of the
>> mailing list to see what others were doing. I was able to find three posts
>> (from Bryan Fields, Robert Poff and Sam Nabkey) referring to an "audio
>> mod". Is the "mod" just as I describe it above, or something more than
>> I see reference to a series resistor of 4.7K, so presumably this is
>> inline with the composite audio / PL output when injecting into the
>> modulator input?
>> Ramesh, VA3UV
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