mrtractor
Hello my question is very very poor audio when using the 9999 echo test. The audio be played back is totally uncopiable nothing but spits and sputters. The radio I am using now is an Anytone D878UD plus. Kind of like if your on a repeater with really severe clipping. TNX for any help Jerry n3fvp
HA2NON
Please run DMR AutoCal, or manually adjust the RX offset on the Modem page for the lowest BER.
mrtractor
I have run autocal several times with no change, I have included a picture of the ber. I have tried changing modem frequency as well both up and down with no change, if I move to far radio does not even trigger the openspot2. Again thank you for any help. n3fvp
mrtractor
Here is a picture of my ber.
HA2NON
Try manually adjusting the RX offset on the Modem page for the lowest BER, and test the connection between the transceiver and the openSPOT2 using the openSPOT2's local echo service. Make sure the transceiver is outputting enough power to the openSPOT2, and that the transceiver's antenna is properly attached. Also make sure the TX power is set to 100% on the openSPOT2.
Please also use a compatible browser (Chrome, Firefox or Safari).
mrtractor
Okay how do I make the frequency adjustment on the modem page? I did make some different changes I thought but none helped. Looking at the picture of my ber it is already as low as it can go or am I reading it incorrectly.
HA2NON
Change the RX offset on the Modem page between -500Hz and +500Hz in 50Hz steps.
mrtractor
Hello hope you had a great weekend, I have tried to manually change rx in 50 hz steps. If I change more than 150 hz in either direction my radio quits receiving the openspot2. I can not even monitor dmr because all audio is scrambled and broken up. Becoming very frustrated at this point. HELP
HA2NON
It's very interesting, as changing the RX offset only changes the receive frequency of the openSPOT2. The transmit frequency remains unchanged.
Please also try a different transceiver if you can.
mrtractor
I only have the anytone 878, no other radio capable of the digital world. My yeasu ft1d just does not come close.
mrtractor
I ran autoCal again twice each time it came up at 200 HZ applied that value with no change in receive audio. So done manually in 50 hz steps from 50 to 500 plus and minus with no change in receive audio, with all settings receive audio is still garbled and broken up. Maybe I am not doing this correctly?
HA2NON
As I wrote earlier, the RX offset only changes the OS2's receive frequency, the transmit frequency stays the same. Do you only perform all tests using the OS2's built-in local echo service on DMR ID 9999 to rule out all networking issues?
mrtractor
Norbert I have rerun autoCal twice again each time it chose 200HZ I clicked save, but it did not help receive audio was still totally unreadable. I manually input from 0 to the maximum of 500HZ plus and minus in 50HZ steps with no improvement. MORE HELP hi hi
HA2NON
You don't have to adjust RX offset or run AutoCal, as I wrote earlier, it only matters if the OS2 is receiving your transceiver poorly, but now this is not the case. Your issue is with the audio you hear on your transceiver.
Do you only perform all tests using the OS2's built-in local echo service on DMR ID 9999 to rule out all networking issues?
n6cid
What freq is your OS2 set for with your DMR radio?