[Icom] Rx antenna protection

[George, W5YR]

Chris, the PRO receivers have similar circuitry already in place to protect
the Receive Antenna input circuitry from transmitted r-f picked up by a
dedicated receive antenna.

73/72, George    
Amateur Radio W5YR -  the Yellow Rose of Texas
In the 57th year and it just keeps getting better!
Fairview, TX 30 mi NE of Dallas in Collin county EM13qe
K2 #489      Icom IC-765 #2349     Icom IC-756 PRO  #2121


Chris BONDE wrote:
> 
> After reading some of the post, I placed the idea of a Rx ant on the
> backburner.  Now you have come up with an apparent solution.
> 
> Would it be possilbe for Adam to add the info to his great web site on ICOM
> radios?
> 
> Chris opr VE7HCB
> 
> At 02:18 PM 2002-11-11 -0500, you wrote:
> >Occasionally postings occur regarding the use of the external antenna
> >connection on some Icom rigs. In some cases there are indications of
> >front end overload damage due to the receiving antenna being in close
> >proximity with the transmitting antenna. In the February 1988 issue of
> >QST, Icom published a "TECH TALK" addressing this situation along with a
> >simple schematic using two shunt 1N914 diodes along with a series #47
> >dial lamp to protect the front end. You can find it on page 90 in an
> >article titled "The challenge of low frequency DX'ing". Keith, VE3JKC.