[arm-allstar] Interfacing with Icom UR8050

[Steve Agee]

Matt:

Hard to say from this end, but is it possible that your repeated audio 
is being looped around twice? Once by the node and once by the repeater? 
Audio loop around should only happen in one place or the other, but 
never both. The app_rpt has an allowance for this using the 
"linktolink=yes" line. If indeed you are looping the audio in both the 
node AND the repeater, this would account for the audio sounding the way 
you are describing it. Just a guess from this end. I believe if you end 
up using linktolink=yes you must also change from duplex=2 to duplex=0 
and the linktolink=yes line should be added just above or below the 
duplex=0 line.

Good Luck!
N5ZUA

On 9/26/2016 4:36 AM, Matt via arm-allstar wrote:
> I'm using a modified USB fob with an Icom UR8050 repeater. Everything 
> seems to be working as it should from the node side but I have a small 
> issue what I connect the usb fob to the repeater.
>
> It seems to muffle/distort the repeater tx audio. For example, If I 
> connect via the node and TX then the repeater goes into TX mode and 
> transmits the audio received from the node just fine. However, the 
> repeater courtesy tone is distorted when the audio transmission ends. 
> Another example is when there is no connections to the node and the 
> repeater sends it's ID. The repeater goes into TX and sends the Morse 
> ID but it sounds distorted and very quite. If I unplug the USB fob 
> then the repeater works just fine.
>
> Just to clarify, I'm using the built in repeater logic to control the 
> RF side of things and I don't want the node to send any tones or ID. I 
> just want it to send repeater audio out to the AllStar network and 
> send Allstar audio to the repeater.
>
> My connection like like this...
>
> Fob TX Audio - Repeater LI (Modulation signal input with 300-3000Hz 
> 6dB/oct emphasis)
> Fob Ground - Repeater GND
> Fob RX Audio - Repeater LO (Detected signal output with 300-3000Hz 
> 6dB/oct de-emphasis)
> Fob PTT - Repeater EXT PTT (External PPT input. Connect to ground to TX)
> Fob COS - Repeater BUSY (Becomes high impedance while receiving)
>
> I have duplex=2 in my rpt.conf and duplex=1 in my simpleusb.conf is 
> that correct?
>
> Matt
> M0LMK
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