[TenTec] RF in headphone cables

[Duane A Calvin]

John,
        Yes, I had the same problem on my Orion I (updated at TT) before
the update was done.  It only occurred when I ran 1 KW into my G5RV Jr
which is only about 15' above the operating position (a power level I
rarely run).  I have not seen the problem with the updated Orion.  The
front panel CW key connector, which I connect thru a 6' cable to a
footswitch, had some RF sensitivity in this same environment, but a bead
cured that.  I have had similar problems with some earlier Kenwood rigs,
and one ICOM. 

        73,  Duane


On Fri, 7 Apr 2006 11:11:14 -0700 (PDT) John Nason / NA9U <na9u at arrl.net>
writes:
> I had pretty bad case of RF getting into my headphones
> on frequencies from 20m and below.  But I did not
> originally attribute it to the Orion because when I
> transmit full power into a dummy load it goes away. I
> fixed the problem with an RF bead.  I figured the
> headphone cables were just the right length and the RF
> was coming from the antenna, not the rig.    
> 
> Are there others that have this issue?  Does anyone
> see this on a non Orion rig?
> 
> Inquiring minds...
> 
> 73, 
> John NA9U    
>  
> > 
> >* RF getting into radio via headphones wire
> > (hardware mod needed).
> > 
> > Ron Castro
> 
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> 


--------------------------------------
Duane Calvin, AC5AA
Austin, Texas

http://home.austin.rr.com/ac5aa