Re: New to the group and experiencing a problem

Ronald Baran

Hello Terry,

I'm not quite sure how the ECOMM II functions but there seems to be some sort of loading coil in the cylindrical part of the antenna.  Am I to understand that you are using both the EMCOMM AND the AH-4 at the same time?

". . . with the same results . . . " means that keying the radio on the UHF frequency resulted in the radio shutting down?

We'll go with the most obvious first; I had the same problem recently and have had it while bicycle mobile and it has to do with power to the radio.  When bicycle mobile and the battery dropped below 11.1V the radio shut down upon keying.  Most lately I found the problem was the power connections.  I took all the connections apart, cleaned them and reattached and voila'.  Take a crack at that first.  

If no joy try using either the EMCOMM or the AH-4 alone and see what happens.   

Keep us posted.



From: <> on behalf of Terry Y <tkyoung2009@...>
Sent: Wednesday, April 22, 2020 11:50 PM
To: <>
Subject: [ic7000] New to the group and experiencing a problem
I just subscribed to the group this evening; my name is Terry Young, call sign n0ve

I'm looking for help with a problem.  I've had my IC-7000 since 2011 and an AH-4 since 2012.  For about the past three and half years the 7000 has been used once or twice a year for UHF/VHF only and the AH-4 hasn't been used.  About a week ago I reinstalled the 7000 & over the past couple of days I reinstalled the AH-4 along with a new Chameleon EMCOMM II.  The EMCOMM II is a 60 foot wire antenna that covers 6M to 160 M, the manufacturer recommends a 50 to 55 foot counterpoise, and an external tuner is required.  I installed a 58 foot counterpoise figuring I would put an analyzer on it and trim it back until I got an acceptable SWR reading.

Since reinstalling the 7000 I have participated in a couple of UHF/VHF nets with no problems; the most recent net being last Sunday evening.

When I finished installing the antenna this morning I connected an antenna analyzer though the AH-4 with unsuccessful results.  On 7.240 MHz I got back a reading of infinate SWR.  So, dialed in the High Noon Net (7.240 MHz) and just listening worked fine.  I turned on the tuner - no problems.  When I pressed the push-to-talk button/lever the radio shut off and immediately restarted.  I turned the power down to 75% and again, when I pressed push-to-talk same results.  I disconnected the HF antenna and the tuner cable and tried a UHF frequency (70cm) with the same results.  Before anyone asks, befoe I proceeded with the antenna installation I verifyed the AH-4 us compatible with a long-wire antenna and after the problem I did verify I have the UHF/VHF plugged into Ant-2 and the HF antenna plugged into Ant-1.

Will an antenna analyzer not work going though the AH-4?  Has anyone experienced this problem?  What did you find the solution to be?  Or, any thoughts on what the problem might be?

Terry, n0ve

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