Batboard

So our new 2 position mip console is finally online, and although there have been a few issues we have been able to pull the transmit and receive audio directly off the accy connector (21/23) for logging and station audio...(this allows us to hear the dispatcher regardless of which console is transmitting) but now we have three issues that we can't seem to resolve.

1. The console is echo'ing. I have checked to make sure the resource is cross muted, and it even seems to echo on the same transmitting console. You can hear yourself in the unselect speaker. Its worse when the other console keys up. No speakers are configured for unselect audio in the control panel other than the main speakers (left is select, right is unselect) It only echos on one resource, of course our main trunked channel. If you select another channel and key up there is no echo, and those also have pins 21,23 tapped for logging.

2. We keep losing our conventional channel. Its connected via a local gateway and every 3 days the gateway lights up on CSQ, the CDM1550 reads unprogrammed and it emits a constant tone over the console until I cycle the power on the gateway and everything returns to normal...for 2-3 days and it happens again.

3. When you hit the emergency button on a portable, (programmed for Tactical, emergency call, emergency alarm, revert PTT id and emergency via silent audio for 1 sec) it will send a regular mobile into "emergency alarm rx" and it beeps once. The console will only show the resource as red, but will not emit any tones. So unless the dispatcher is staring at the console, they don't know there is an activation. When you press the emergency on the conventional channel programmed the same way... the console goes nuts - red and beeps. The APX7500 connected to the console,via digital gateway is set in emergency wide for alert & display, and checked for emergency call receive. In trunking system, radio ergo is checked for Emergency Alarm Rx indicator. Moto Prop features checked under Astro 25. When I spoke to Motorola about it they claim the MIP5000 is just an extension of the radio and will do anything the APX7500 will do.

Any advice would be helpful.

APX7500 UHF2
CP R12.01.00
FW R12.00.00
DSP R12.00.00
flashcode 108048-800480-7

Update - purchased the Omnicron electronics RSA-U5 and placed at the amp for the pa system. Echo gone. Replaced the CDM with another CDM known to be working well and no issues so far over a week. Still no emergency tones going over the console but at this point small sacrifice.

The audio is horrible coming over the MIP speakers. Anyone have any suggestions on tweaking the settings?

webby52 wrote:Update - purchased the Omnicron electronics RSA-U5 and placed at the amp for the pa system. Echo gone. Replaced the CDM with another CDM known to be working well and no issues so far over a week. Still no emergency tones going over the console but at this point small sacrifice.

The audio is horrible coming over the MIP speakers. Anyone have any suggestions on tweaking the settings?

Can you define "horrible" audio? If it's loud and distorted, my guess is that your level coming out of the radio is too high. Then don't forget that your source point probably has a DC bias voltage on it and you probably need to add a capacitor in series with it to block the DC voltage.

Many possibilities on the cause, but it would help to have a few more details.

Jim