[App_rpt-users] RTCM BEW Mode/Quantar Interfacing - Update

[Tim Sawyer]

The diagnostics had to be removed to make room for BEW.

Did you load a code plug with enhanced wireline card discriminator audio support? http://www.repeater-builder.com/motorola/quantar/quantar-tip.html
--
Tim
:wq

On Mar 12, 2014, at 11:35 PM, Caleb Pal <cleb at defcon-3.net> wrote:

> On 3/10/2014 1856, Caleb Pal wrote:
>> Hello all,
>> 
>> We received our RTCM's this week, and I am working to interface them to the Quantar. I've run into a few issues:
>> 
>> 1.) AUX TX Audio. I've had success with one machine in getting the audio out of Pin 5 of the Telco connector, but not on the other. Is creating a wildcard table to enable "AUXTX-TX ON" when there is an input on Pin 9 (PTT) the correct method to enable TX audio output on Pin 5?
>> 
>> 1.) BEW Mode. My RTCM's show it as unavailable as an option to enable. Is there a trick to enabling it?
>> 
>> 2.) I cannot seem to get the squelch calibrated. I get a slow flashing light a little while after I enable squelch cal, which seems to indicate low discriminator noise. I tried enabling jumper JP1 with no change. Does BEW mode need to be enabled to get a proper squelch calibration with the Quantar? Tim suggested that some older firmware version may not provide enough discriminator noise. I want to be sure I've exhausted all options before I hunt for SCM with newer firmware for these machines.
>> 
>> Thanks,
>> 
>> Caleb
>> 
>> 
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> 
> 
> To update my progress:
> 
> I downloaded the BEW firmware for the RTCM and loaded it on both of our RTCM's. I enabled BEW mode, and attempted to calibrate the squelch again. Still get the slow flashing RX light, but 60-90 seconds into the squelch calibration procedure it finally completed with a squelch cal value of 100-110. The squelch POT lights up the RX light when the POT is turned down to a value of about 150 (post sq cal procedure).
> 
> Tim mentioned that older Quantar firmware may have low discriminator levels. The above squelch cal was done with a 800MHz Quantar, no antenna attached, with the latest firmware I've been able to find, 20.14.048.
> 
> Is what I'm seeing normal/acceptable for a Quantar?
> 
> Also, something I noticed once the BEW firmware was loaded, I no longer have the ability to access the Diagnostics menu on the RTCM. So, I am unable to transmit a 1khz tone, etc. I used the latest BEW SMT FW version (1499) off of the Allstar SVN  server.
> 
> Thanks,
> 
> Caleb
> 
> 
> 
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