John,
I verified that the following method also works.
Copy the following alsa control values from your working image,
you can read them by running alsa-show.sh.

LO Driver Gain
PCM
ADC Level

Boot your new image and run:
cd
cd bin
sudo su
./setalsa-udrc-din6.sh

Now run alsamixer and set LO Driver Gain, PCM & ADC Level.  To make
things more convenient you could use an editor and set the 3 values in
the setalsa-udrc-din6.sh script. They are the first 3 levels set.

Verify by running alsa-show.sh one more time.

/Basil

John Spoonhower <jpspoonhower@...> writes:

> Thanks. I will give this a try.
> On a somewhat different topic...I notice in beacmin.sh that in the comments
> aprs symbols are listed. I do not see sending a symbol implemented in this
> script. Is this fairly straightforward to add ?
>
> On Sun, Oct 6, 2019 at 11:17 AM Basil Gunn <basil@...> wrote:
>
>>
>> I used a new image (nwdr14) with a UDRC II and it worked fine. I will
>> release that image today. The only thing I changed from the scripts was
>> to select discriminator out using the alsa commands. You can do it from
>> the alsamixer gui as well.
>>
>> sset 'IN1_L to Left Mixer Positive Resistor' '10 kOhm'
>> sset 'IN1_R to Right Mixer Positive Resistor' '10 kOhm'
>>
>> Since you have a working configuration why not save it to a file &
>> compare it with the configuration you are using with the new image.
>> ie. save /boot/config.txt, alsa-show, ax25-status -d
>>
>> You could try a transmit test to see what that gives you
>> cd
>> cd n7nix/debug
>> ./btest.sh -P udr1 -p
>>
>> Remember that on a UDRC II the mDin6 connector is port 1 not port 0.
>>
>> I notice that you have manually edited /boot/config.txt. I did not
>> manually edit any files for my UDRC II test.
>>
>> /Basil