NX-800 Squelch Issue

[kenwoodgeek]

I'm dealing with another school bus radio that doesn't seem to be working correctly.

The radio keeps its squelch open pretty much constantly, as if it is set to 0, when it is actually set at 5.

With the microphone in the clip, the receive LED stays illuminated, and when you take it off, you get constant static between transmissions. Very seldom will the light go off and there will be no signal on the radio.

I am programming all the bus radios with the same programming file (FleetSync IDs are different), and none of the other radios are doing it.

Any suggestions? Bad radio?

I can send the KPG-111D programming file, if needed.

Thanks in advance!

 

[kayn1n32008]

I'm dealing with another school bus radio that doesn't seem to be working correctly.

The radio keeps its squelch open pretty much constantly, as if it is set to 0, when it is actually set at 5.

With the microphone in the clip, the receive LED stays illuminated, and when you take it off, you get constant static between transmissions. Very seldom will the light go off and there will be no signal on the radio.

I am programming all the bus radios with the same programming file (FleetSync IDs are different), and none of the other radios are doing it.

Any suggestions? Bad radio?

I can send the KPG-111D programming file, if needed.

Thanks in advance!

Can you rule out locally generated noise? Does it do it regardless if the bus is running or not? If so, Get it benched, and make sure there is nothing wrong with the radio. When you go to put it back in, check the off hook decode option.

 

[kenwoodgeek]

I believe so, because the bus travels quite a distance during its daily routes, and when I was on route with the driver yesterday, it was doing it pretty much the whole time, during both the morning and the afternoon. Other buses I was checking out between routes were not doing it.

And yes, I believe it does it regardless if the engine is running or not.

I don't know if I'll have time to bench it; I might just put off hook decode on it.

 

[mmckenna]

There is a squelch adjustment in the service software, but be careful making adjustments in there. That's separate from the setting on the front panel/programming software.

 

[cmdrwill]

Bad mic hang up contacts that put the radio in On Hook decode so the radio will only hear your fleet.

Put another nickel in the hang-up box ... wait that was on the earlier Motorola radios.

 

[kenwoodgeek]

I don't have the service software, and that's probably a good thing, haha.

And with regards to the off hook decode, I'm not really trying to just mute the noise coming in, but solve the bigger issue as to why the signal is coming through the radio in the first place. Because when the microphone is on the clip, it closes the squelch just fine.

 

[mmckenna]

I don't have the service software, and that's probably a good thing, haha.

Yes you do, it's in KPG-111.
Under the Program tab, "Test Mode Ctrl+T"

That's the service part of the software.

 

[kenwoodgeek]

Really? Now I didn't know that, haha.

I'll have to mess around with those settings with my own radios and see if I'm comfortable enough messing around with the adjustment in the service software.