receiver switched bands

[behindthescenes]

We are using Audio-technica ATW-R310 wireless receivers with belt packs at my church. I have used the receiver in question numerous times without issue but the last time I unplugged the reciever and moved it to another part of the church for a special performance; the receiver switched bands and is in the 600's band while the transmitter is still loading in the 500's band. Any ideas on how to get it back to the correct band.

Have tried a factory reset but the did not work.

[mbenonis]

You may need to call A-T. That said, despite the incorrect display you should be able to use it just fine. Figure out what frequency you're using compared to the lowest frequency you can go, and then add that to the new low frequency (ex: If you're on 525 MHz and your systems tarts at 520, and your new system starts at 620 MHz, set it to 625 MHz).

[behindthescenes]

I was afraid of that; but that will be on my list of things to do tomorrow. Customer service closed at this point. I tried your second option and it isn't working at the moment. Good thing we had a couple extras to fall back to.

[Anonymous067]

It appears the AT-3000 (the newer version...way to go AT) wireless series was/is sold in 2 bandsplits.

TV25-30 or TV44-49, or band C and band D.

Wireless systems cannot switch between the two bands.
Is it possible the transmitter in the other part of the facility was purchased and uses a different bandsplit (D band vs C band).

The facility may own multiple bandsplit devices.
I would suggest checking the model numbers, unless AT made a device that can switch between different band splits.

[mbenonis]

Wireless systems cannot switch between the two bands.

It can switch between bands if the firmware gets wonky or corrupted (I've seen it happen). It doesn't mean it'll actually /work/ in the other band (the front end RF filters make sure of that), but the microcontroller will think the device is in the wrong band. Usually the trick is to reflash the unit, but that's not something users are able to do on-site.

[Anonymous067]

It can switch between bands if the firmware gets wonky or corrupted (I've seen it happen). It doesn't mean it'll actually /work/ in the other band (the front end RF filters make sure of that), but the microcontroller will think the device is in the wrong band. Usually the trick is to reflash the unit, but that's not something users are able to do on-site.

I didn't know the programing was able to do that! I was under the impression it was just "fixed" in that band, and the program didn't even know the "other band" existed. Good to know.

Back to subject-I'd still check the actual models, I don't think its too unheard of to have multiple bandsplits on site. After all it's a simple check before you start sending gear back and such.

[mbenonis]

I didn't know the programing was able to do that! I was under the impression it was just "fixed" in that band, and the program didn't even know the "other band" existed. Good to know.

Yep. They write one version of the firmware and put it on all units, probably setting a bit somewhere in memory to determine what bandsplit the unit is supposed to think it is. Some manufacturers actually detect the bandsplit every time the unit starts up instead, by checking the Local Oscillator (LO) frequency of the receiver. The LO is the circuit that generates the radio frequency signal needed to demodulate the received radio signal.

[Chris15]

Wireless systems cannot switch between the two bands.

You just don't know the right people...
I've used transmitters that can switch between bands...

[Anonymous067]

You just don't know the right people...
I've used transmitters that can switch between bands...

Do tell?!!??

[fx120]

We are using Audio-technica ATW-R310 wireless receivers with belt packs at my church. I have used the receiver in question numerous times without issue but the last time I unplugged the reciever and moved it to another part of the church for a special performance; the receiver switched bands and is in the 600's band while the transmitter is still loading in the 500's band. Any ideas on how to get it back to the correct band.

Have tried a factory reset but the did not work.

It is unlikely that the unit has actually switched bands, I am more inclined to believe that it is an issue with the display and the firmware as others have indicated. I doubt that it is actually tuning at the indicated frequency.

The good news is that AT's repair service is very fast and very reasonable, so if you need to send it back for any reason they're one of the best manufacturers to deal with.