XPR 7550e bleep PTT bleed

[Kiubi]

Hi folks,
I got a PMMN4096B Bluetooth mix for my 7550e. It works great except for one little annoying thing, when I push to talk the end of bleep sound bleeds through and it can be hard on other radios.
Asking to see if anyone has had this issue and have any ideas on how to fix it.
I'm wondering if I need to update the firmware on the Bluetooth mic and if that's the case, had anyone have a link I can grab the latest update from?

 

[ElevatorsAndRadios]

Asking to see if anyone has had this issue

I have heard this happen when communicating with someone who claimed to be using a Bluetooth microphone and a Motorola radio on a SoCal analog amateur repeater system. Unless that was you, you aren't the only one.

 

[Floridarailfanning]

It works great except for one little annoying thing, when I push to talk the end of bleep sound bleeds through and it can be hard on other radios.

I would try adjusting the Voice Pretime Duration. The default value is normally 0ms but setting it to 60ms or 120ms might delay the opening of the mic enough to miss the end of the TPT.

 

[KG4INW]

Are you in a relatively quiet room with walls or the ceiling somewhat close by? If the volume is turned up a good bit you could actually be catching the TPT echo when your mic opens. I've seen it many times so give what Floridarailfanning suggested a try.

 

[Kiubi]

Are you in a relatively quiet room with walls or the ceiling somewhat close by? If the volume is turned up a good bit you could actually be catching the TPT echo when your mic opens. I've seen it many times so give what Floridarailfanning suggested a try.

I'm in a quiet room sometimes but it also happenes when next to a loud machine.

 

[Kiubi]

I have heard this happen when communicating with someone who claimed to be using a Bluetooth microphone and a Motorola radio on a SoCal analog amateur repeater system. Unless that was you, you aren't the only one.

It wasn't me, I'm in the Midwest. But looks like I'm not the only one with this issue.

 

[KG4INW]

I've only ever seen it when in an environment where the TPT can echo off nearby surfaces and get into the open mic. If it's consistently happening in all noise environments, then I'm not sure. Does it happen when you don't use the Bluetooth mic?

 

[Kiubi]

Only when I use the Bluetooth mic. But I did notice that it happens when there's another radio on the same frequency. I think it picks up the reverb and stops right away. It's pretty sensitive.

 

[KG4INW]

Have you tried adjusted the voice pretime duration as suggested?

 

[Kiubi]

I've searched how to do it but I'm unable to reach that setting.

 

[Floridarailfanning]

I've searched how to do it but I'm unable to reach that setting.

It's under General Settings in the Top section.

 

[Kiubi]

The top one is display settings on XPR 7550e. I've looked on every setting in the radio and I'm unable to find it.

 

[Floridarailfanning]

The top one is display settings on XPR 7550e. I've looked on every setting in the radio and I'm unable to find it.

No, you need to use CPS for this.

 

[Kiubi]

Ok. I up'd the voice prime duration to 240 and still heart that bleed trough. I did program one of the buttons to remove all tones on/off and when it's off there's no sound to bleed through.

 

[KG4INW]

Have you tried talking to your dealer/radio shop or the TRBO subscriber tech support team? Without getting my hands on it or witnessing the behavior in your particular environment, I'm not sure what else to recommend at this point.

 

[Kiubi]

Can CPS read the Bluetooth mic and change settings on it?

 

[wgbecks]

Just a shot in the dark, but its likely caused by delay in the BT encoding/decoding between the microphone and the radio who's delay time is such that the TPT component extends past the voice prime duration interval. What else could it be? Question: Is the a Motorola BT or an aftermarket product? Are they any settings in the microphone to reduce buffering that might shorten any inherent delay?

 

[K2NEC]

Can CPS read the Bluetooth mic and change settings on it?

No

 

[Kiubi]

Just a shot in the dark, but its likely caused by delay in the BT encoding/decoding between the microphone and the radio who's delay time is such that the TPT component extends past the voice prime duration interval. What else could it be? Question: Is the a Motorola BT or an aftermarket product? Are they any settings in the microphone to reduce buffering that might shorten any inherent delay?

It's a motorola BT mic. Model: PMMN4096B