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-   -   Making a little antenna switcher... toggle/rocker/knife? (https://www.radiobanter.com/shortwave/37078-making-little-antenna-switcher-toggle-rocker-knife.html)

Mike Garber. July 12th 03 03:48 AM

What would be wrong with relays? Put em all where the antennas enter the
house, and then youd have only one control cable, and one coax, no matter
how many antennas youve got.


"starman" wrote in message
...
Joe Strain wrote:

INDEED! I've often wondered if the A-B Video selector switches would

work
here...they are switchin HF video RF so they oughta work for out

antennas

NTSC video extends from DC to 4.5-Mhz. The shortwave spectrum reaches
30-Mhz. A video switcher might attenuate the higher HF range.


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starman July 12th 03 08:12 AM

Dave wrote:

An RF A/B switch should work to TV channel 69, should it not?


An 'RF' switcher should work for switching two shortwave antennas. You
were originally talking about a video (baseband) switcher, which isn't
necessarily suited for frequencies above 4.5-Mhz.


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TommyBoy July 12th 03 02:17 PM

RS has a "high isolation A/B/C" switcher for just $11. Would be a
shame if this switcher attenuated significantly-- and it would be nice
to have one more odd RS item that can take the place of a speciality
item costing much more.

Right now, I'm just feeding random wires so such a switcher would be
fine for me otherwise.

Thanks.

starman wrote in message ...
Joe Strain wrote:

INDEED! I've often wondered if the A-B Video selector switches would work
here...they are switchin HF video RF so they oughta work for out antennas


NTSC video extends from DC to 4.5-Mhz. The shortwave spectrum reaches
30-Mhz. A video switcher might attenuate the higher HF range.



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