[ICOM] Icom and AM broadcast overload

[Larry Winslow]

I had just your problem happen back in my college days. I found that by 
cleaning all the antenna and ground connections, my situation went away. 
A dirty connection, in my case, was acting as a diode and detecting the 
AM signal - which for me was about 6 miles away.

73 - Larry WØNFU
larry_w at comcast.net


Lawrence Young wrote:
> I recently transferred some of my station to another operating position. I am now having 
> problems with AM broadcast overload up and down the HF bands. First my IC 706mkIIG and now 
> my 746 pro are being overloaded. I don't live all that close to the AM transmitter. It's 
> at least 3 -5 miles away. At first I thought this was due to my 706 having a connector 
> problem but that has been fixed and my 746 is FB after getting it back from the radio 
> doctor. I have tried Ferrite beads and may need to add some more and I will try to improve 
> my grounding but other than this are there some more things to try? 
> Ed  W4TEY
>  
> ED: I know that you believe you have checked all connectors and connections, but it sounds to me that you may have a good case of RF rectification  from the BC station going on somewhere in your station setup. The clue being after you relocated a part of your station. AS crazy as it sounds, double check and clean all connectors and connections, including any antenna switches. It could be at the coax to antenna connections itself. Assume nothing. BC overload, not very likely, unless you are within a mile or two of a 50 Kw station. Good luck, Larry K4LXV.
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