Motorola APX 8000

[firemedic01]

Hello all, I have a personally owned APX 8000 radio that has been programmed by our authorized Motorola retailer for the agency I serve with. The radio has a quad-band antenna and a Motorola XE remote speaker mic. The system is a conventional VHF system with one repeater site.

Often, my transmissions are reported to be garbled or broken by our dispatch center. There seems to be no rhyme or reason for the inaudible audio. I have had no issues receiving any audio. I have noticed the issue with the Impress 2 battery at various levels including fully charged. Transmit power is set to high in the settings. The radio is set to narrowband specific with minimal deviation.

I have ordered a replacement antenna in an attempt to resolve the issue. Outside of this, what are some other probable causes?

 

[KevinC]

Is this location specific? And if so do other radios have issues in the same locations?

 

[firemedic01]

Is this location specific? And if so do other radios have issues in the same locations?

It is not location specific.

No other radios have the issue, however, I am one of three APX radios on the system. The others are a mix of XPR, XTS, and HT models.

 

[N4DES]

Can you get a recording of your transmissions from dispatch so you can hear for yourself what you sound like?

The most current AN000342A01 quad-band antenna made a number of improvements in 700/800 MHz, but not much in VHF that I have used on mine.

 

[billyfromhill]

When was the last time the radio was aligned?

 

[signal500]

Remove the speaker mic and see if that resolves the issue.

 

[Nilsog]

Remove the speaker mic and see if that resolves the issue.

+1 for this. I had the same issues with my APX7000 and it turned out that was the issue, specifically it was also an XE RSM.

 

[WRTF671]

+1 for this. I had the same issues with my APX7000 and it turned out that was the issue, specifically it was also an XE RSM.

I'd look at that too. I have two XE RSMs and one has issues cutting out sometimes. I don't get reports of garbled transmissions but I imagine that's the next step...