I used a Radio Shack scanner and tapped the demodulator (MC3359) output
to an scope.
Used another synthesized radio to calibrate, first on channel (0 Hz
difference...hopefully), then 5 kHz up and 5 kHz down.
It gives proper reference to baseline and peak to peak deviation.
Then modulate the rad
On Monday 16 November 2009 08:10:08 Andy obrien wrote:
> Thanks for the feedback guys. I will play around with the settings...once I
> find a person to contact on 2M.
>
> Andy K3UK
>
>
>
> On Sun, Nov 15, 2009 at 11:28 PM, Tony wrote:
>
> >
> >
> > Andy,
> >
> > I believe you have a Kenwood
- Original Message -
From: Andy obrien
To: digitalradio@yahoogroups.com
Sent: Monday, November 16, 2009 8:10 AM
Subject: Re: [digitalradio] Digital on 2M FM: Audio settings ?
Thanks for the feedback guys. I will play around with the settings...once I
find a person to
Thanks for the feedback guys. I will play around with the settings...once I
find a person to contact on 2M.
Andy K3UK
On Sun, Nov 15, 2009 at 11:28 PM, Tony wrote:
>
>
> Andy,
>
> I believe you have a Kenwood TS2K(?). If so, there is a way to control the
> digital mode audio level on FM. If
Andy,
I believe you have a Kenwood TS2K(?). If so, there is a way to control the
digital mode audio level on FM. If you're feeding the audio through the
microphone connector, menu 41 has a low, medium and high setting. If your using
the 13 pin DIN plug, the audio input can be adjusted via menu
The carrier has a constant level on FM, so the ALC doesn't mean much. If
you want to monitor the drive level you would need to monitor the deviation.
If you could monitor the transmitter, that would probably work.
Bob
W5XR
From: digitalradio@yahoogroups.com [mailto:digitalra...@yahoogroups.c
I would guess, that setting the audio on the low side would be preferable.
In the packet days, we used to set out deviation to 3.0 - 3.5 KHz as it
assured us of never over deviating. As long as we got at least 10 dB
quieting in the rx'er, we experienced fewer retries.
philw de ka1gmn
On Sun, No
That's what I am guessing...not much of an FM operator
On Sun, Nov 15, 2009 at 8:12 PM, Phil Williams wrote:
>
>
> Doesn't the ALC behave differenty when runnning FM?
>
> philw de ka1gmn
>
> On Sun, Nov 15, 2009 at 6:55 PM, Andy obrien wrote:
>
>>
>>
>> Hmmm. Well I thought it would be simple e
Doesn't the ALC behave differenty when runnning FM?
philw de ka1gmn
On Sun, Nov 15, 2009 at 6:55 PM, Andy obrien wrote:
>
>
> Hmmm. Well I thought it would be simple enough to transmit digital
> modes on 2M FM but one issue I just ran in to is the ALC is very high
> and my usual method of lower
