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Old 10-12-2009, 04:51 PM
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Default IC-R7000: No Reception at 800 MHz

I've had an IC-R7000 now for a little while and it's a great receiver and for the past few months I've had it set up doing voice following(in UniTrunker) for a 900 MHz EDACS system I monitor, and it works great and sounds as good as a professional EDACS radio I also have set up for that same system. Everything else I've used it for, monitoring some analog VHF/UHF public safety and also the 2m/70cm ham bands, it's been spectacular as well.

For another project of mine, I was attempting to set the receiver up for voice following in UniTrunker on an 800 MHz EDACS system nearby, and while the program was successfully getting the receiver to switch frequencies, there was zero audio and the S-meter wasn't even moving. Even manually tuning the IC-R7000 to that systems control channel, I was getting nothing.

OK, now the gist of my question: is this problem repairable? I found a thread discussing a similar(though more severe) issue of the same receiver in this thread here, and despite one poster saying(loosely) the "800 MHz reception loss is a well documented problem," I can find precious little documentation pertaining to this outside that specific thread. My big worry is there might be more endemic problems with it, if it's operating (subjectively) flawlessly in the 900 MHz band but is completely deaf in the 800 MHz band.

Any advice or experience with similar problems would be most appreciated. Thanks in advance.
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Last edited by davidbond21; 10-12-2009 at 04:59 PM..
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Old 10-12-2009, 06:07 PM
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Make sure you haven't accidentally pushed the 1GHz push-button on the front panel. It's adds 1GHz to the displayed frequency.
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Old 10-12-2009, 07:56 PM
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Quote:
Originally Posted by MPSCS View Post
Make sure you haven't accidentally pushed the 1GHz push-button on the front panel. It's adds 1GHz to the displayed frequency.
No, it's definitely not that(It fooled me the very first time out of the box though). And I've also noticed that UniTrunker always initially brings my IC-R7000 up in FMn mode upon starting voice following on the 800/900 MHz frequencies, and I always change it to back to FM so that's not going to be it either.
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Old 10-12-2009, 08:08 PM
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I've read over the years that there are a certain few capacitors that are known to fail in the R7000.

I found this reference, not sure if it's related to the problem you're experiencing:

http://www.textfiles.com/hamradio/r7000.ham
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