[TowerTalk] Remote antenna switch question

[Bill VanAlstyne]

And you want as much isolation of the chosen antenna as possible to prevent
coupling from the other antennas of  a) strong out-of-band signals and  b)
lightning-induced common-mode currents.

Bill / W5WVO


Richard Karlquist wrote:
> Grounding unused inputs greatly increases
> the isolation of the switch.
>
> Rick N6RK
>
>> -----Original Message-----
>> From: towertalk-bounces at contesting.com
>> [mailto:towertalk-bounces at contesting.com]On Behalf Of
>> N9EN at VOYAGER.NET Sent: Tuesday, April 06, 2004 3:52 AM
>> To: TOWERTALK
>> Subject: [TowerTalk] Remote antenna switch question
>>
>>
>> Hello T-T'ers,
>>
>> I am thinking about building a "control box" to operate an
>> OLD Drake "RCS-4" remote coax antenna switch. The
>> switch is made to select from 5 antennas and from looking
>> at the schematic, all "unselected" antennas are grounded.
>>
>> I was wondering what the logic is behind the grounding
>> of the antennas haven't been selected. Can someone
>> shed some light on this for me? I was thinking about
>> modifying the switch so that it does not ground any of
>> the other 4 antennas that have not been selected.
>>
>> Thanks for any help on this!
>>
>> 73 de Brad, N9EN @ Radio Free Roscoe (IL) [tm]
>>
>>
>> _______________________________________________
>>
>> See: http://www.mscomputer.com  for "Self Supporting Towers",
>> "Wireless Weather Stations", and lot's more.  Call Toll Free,
>> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk at contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>>
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers",
> "Wireless Weather Stations", and lot's more.  Call Toll Free,
> 1-800-333-9041 with any questions and ask for Sherman, W2FLA.
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk