First I want to convey that my Allstar node using a Motorola M120, Raspberry Pi 2B and the modified Syba usb audio fob worked ok with some planned adjustments for the audio. I could key up my IC-910 and carry on with back and forth communications with another node over the internet.
Now for the “What happened” moment: due to migrating from breadboard to being hardwired with a shorter db9 female cable between my interface board to the M120. Not being able to find anything wrong with my construction I created another new sd card and started from scratch. It worked again but only momentarily.
Transmitting works fine so I’m hearing the nice lady’s voice giving my call sign ans such over the Icom 910h. I scoped the mic input on the usb audio fob and it shows me audio but what the heck setting or whatever keeping it from passing the audio over the internet and to the usb audio menu rx real time monitor? Bsd usb fob?
Hi Mike,
Not quite right. The rx audio is not making it to the internet or back to the SimpleUSBmenu choice 2.
I can here the audio rx out of the m120 speaker. I see audio on the oscilloscope connected directly to the mic input of the USB sound FOB when transmit to the m120.
; duplex=1 - Half duplex with telemetry tones
; and hang time. Does not repeat audio.
; This mode is preferred when interfacing a
; simplex node. This is the default mode.
; duplex=2 - Full Duplex with telemetry tones
; and hang time. This mode is preferred when
; interfacing a repeater.
; duplex=3 - Full Duplex with telemetry tones
; and hang time, but no repeated audio. Often
; used for radio-less nodes.
; duplex=4 - Full Duplex with telemetry tones
; and hang time. Repeated audio only when the
; autopatch is down.
that is typical for a simplex node, if that is what you are using, you still did not say.
Did you verify you COS logic ?
or does it timeout if sitting undisturbed for 6-8 min ?
Can you toggle cos manually and hear the reaction in the node ?
You might also watch from the asterisk CLI> for any possible error messages.
asterisk -rvvv
What version of the software are you using ?
I might suggest, before you pull to much hair, and get me to start pulling mine, if you have a new sd card to write anew and setup/test that.
Many a strange easily unexplainable issues have been from a corruption of the card.
Name is: usb
Rx Level: 500
Rx ondelay: 0
Rx audio-delay: 0
Tx A Level: 500
Tx B Level: 500
Tx DSP Level: 999
preemphasis: yes
deemphasis: no
plfilter: yes
dcsfilter: no
rxboost: no
PTT: Active LOW
PTT status: Un-Keyed
CTCSS (input): Ignored
COS (input): CM108/CM119 Active LOW
COS (test): Un-Keyed
COS (composite): Un-Keyed
Well, you can tell me active low, but how am I to know if it is correct.
That’s why I asked you to verify the software setting with the ‘URI COS voltage’.
So you know it is correct. A toggle in the software will not test the logic at the URI.
HI Mike,
I understand now. Well guess what? I found the problem.
Seems inside a length of shrink tubing I had a broken wire.
And of course it is the wire that connects the USB audio fob COS to the interface board I built that goes to the transceiver M120 COR. The wire had to be tiny because of the tiny little pins on the cm119 IC. Thanks for taking the time to communicate with me. Your questions led me to “What happened?”
Thanks
73
KC2YTD
