[ICOM] Re: Icom and AM broadcast overload

[D C *Mac* Macdonald]

I would surmise that rectification and mixing of the various BC 
signals and their harmonics are occurring somewhere close to 
your station.  If the fundamentals were headed your way, they 
WOULD be filtered by the IEC filter assuming good shielding on 
your feedline. 
 
You mentioned a ground radial system.  What is its purpose? 
Is it to support a vertical antenna?  If so, you may have a 
poor connection in it which COULD act as a diode detector and 
cause your problem! 
 
YRMV (Your Results May Vary) 
 
73 - Mac, K2GKK/5 
Oklahoma City, OK 
 
> Date: Tue, 6 Nov 2007 15:15:04 -0600> From: scameron at austin.rr.com> To: icom at mailman.qth.net> Subject: [ICOM] Re: Icom and AM broadcast overload> > I have an IC775DSP and hear local AM broadcast stations (none eanywhere near me) low in 30, 40 meter bands (7005, 10105) at certain times of day when, I assume ground waves are strongest, after sunset to just after sunrise. I have an extensive ground radial system, and an IEC 402X BCB 1.8-30 Mhz filter that do nothing to attenuate their signals coming off my trap inverted vee for 1.8-10Mhz. 
> Cleaned terminals and grounds to with no effect. > Anyone solved this problem before that can advise? > Skip W5GAI > Austin, TX