[Icom] How to protect Rx Ant input?

Sun, 02 Jun 2002 21:02:05 -0600

Gee, looking at the schematic shows a Varistor(R112), a lamp (DS111),
and back to back diodes to ground (DS101, DS102).  This certainly
seems like protection of the RX Antenna port.  The diodes are 1SS302
types and are good for at least 100mA.  This sure seems like protection
to me.  What component(s) gave up when you had your problem before?

73,
Larry, W0QE

Chris BONDE wrote:
> 
> OO  O O I always thought that it was shut off.  Now, there goes my plans
> for a Rx antenna and a Tx antenna.
> Thanks for the warning.
> 
> Chris opr VE7HCB
> 
> At 08:14 PM 2002-06-02 +0000, you wrote:
> >Hi list(s),
> >i want to add a relay in front of the Rx-Antenna input of my 756Pro, since
> >this input is not protected (turned off) during TX, and I already fried my
> >RxIn once.
> >
> >Question:
> >What kind of relay should I use? I.e. which is suitable for HF use?
> >
> >73,
> >Ekki, DF4OR
> >----
> >Your Moderator: Dick Flanagan W6OLD, [email protected]
> >Icom FAQ: http://www.qsl.net/icom/
> 
> ----
> Your Moderator: Dick Flanagan W6OLD, [email protected]
> Icom FAQ: http://www.qsl.net/icom/