[amsat-bb] IC-821H problems
vu3tyg at yahoo.co.in
Sun Jun 18 03:59:56 UTC 2017
I feel this could be related to the "Ribbon Cable contact issue ". There is one ribbon connector behind the S meter which goes to one of the boards. Disconnect the cable by pulling on the connector socket clean the pins on the cable with a rubber eraser (soft) and fix back the connector. 73
From: Matthew Stevens <matthew at mrstevens.net>
To: Nitin Muttin <vu3tyg at yahoo.co.in>
Cc: "amsat-bb at amsat.org" <amsat-bb at amsat.org>
Sent: Saturday, 17 June 2017 12:18 AM
Subject: Re: [amsat-bb] IC-821H problems
Yes, I do. Interestingly, I have not had any problems with FM in
either mode J or B. The other day I worked AO-85 successfully, and
immediately switched to EO-79, 2m SSB downlink. I heard no telemetry
or anything else. Then I pointed the antenna over towards some nearby
powerlines, which normally create a lot of annoying static on 2m -
nothing heard. I removed the coax from the 2m jack, and observed a
drop in the noise level (very slight), reconnected the coax and
checked over towards the power lines again, with the same result. I
wasn't hearing anything on 2m SSB, after I had, minutes before, had no
issues hearing on 2m FM.
I'm glad I have other radios to use in the meantime, while I try to
figure this out :-)
- Matthew kk4fem
On Sun, Jun 11, 2017 at 2:05 AM, Nitin Muttin <vu3tyg at yahoo.co.in> wrote:
> Hi Matthew,
> On 2m when on FM mode do you hear the white noise when you open the squelch.
> Nitin [VU3TYG]
> From: Matthew Stevens <matthew at mrstevens.net>
> To: amsat-bb at amsat.org
> Sent: Saturday, 10 June 2017 7:06 PM
> Subject: [amsat-bb] IC-821H problems
> I'm having a strange issue with my 821. Periodically I lose all sensitivity, which I've particularly noticed on 2m SSB. I can attach and detach an antenna with no change in the noise level, and can't hear anything in the receiver (like the XW-2* beacons, or the AO-73 telemetry). Resetting the radio seems to fix it.
> It doesn't appear to be affecting 70cm, although I haven't had much chance to test that (there's not always a mode j sat up at the same time as a mode b one, and when it happens I'm normally just trying to reset the radio as fast as I can do I can operate the pass). Has anyone experienced anything like this before?
> - Matthew kk4fem
> Sent from my iPhone
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