[ARC5] Antenna switch

[Al Klase]

For receiving you might also consider passive splitters.  Splitting 4 
ways only cost you 6dB, which is not a big deal at HF.  
Splitter/Combiners and broadband transformers are cheap ans easy to build.
See my website <http://www.skywaves.ar88.net/ANTENNA/antsys.htm>.

Al

On 4/4/2020 6:05 PM, Jim Haynes wrote:
> On Sat, 4 Apr 2020, Waldo Magnuson via ARC5 wrote:
>
>> Before I build one, I was wondering if anyone had a “spare” antenna 
>> switch. Preferably one with BNC connectors.  I’m getting tired of 
>> switching my antenna from one receiver to another.
>> Skip Magnuson
>> Spokane, WA
>
> If it's just receivers you might consider an antenna multicoupler rather
> than a switch.  I've never tried to build one, but seems like with
> transistors being so fast and cheap as they are now it would be a lot
> easier than with the old vacuum tube designs.
>
> If transmitters are involved it may be more difficult to build than you
> have in mind.  You'd really like a switch that grounds the unused
> ports in addition to connecting the antenna to the one you are using.
> There is the article in March QST p. 36 about the need for high isolation
> to keep transmitter output from leaking into receiver inputs.
>
> Jim W6JVE
>
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-- 
Al Klase – N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/

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