Coax rotary switch

[John Larkin]

There are tons of microwave-quality, multi-GHz electrically-operated
multipole switches for switching wideband 50-ohm signals. You'd think
there would be comparable manually-operated coaxial switches, but I
can't find one. Does anybody know of a source? I want to manually
switch a sampling scope trigger input in a test set.

I guess I could wire up a power supply and a rotary switch and a coax
relay, grumble.

Thanks,

John

 

[Spehro Pefhany]

There are tons of microwave-quality, multi-GHz electrically-operated
multipole switches for switching wideband 50-ohm signals. You'd think
there would be comparable manually-operated coaxial switches, but I
can't find one. Does anybody know of a source? I want to manually
switch a sampling scope trigger input in a test set.

I guess I could wire up a power supply and a rotary switch and a coax
relay, grumble.

These guys have some with "manual override":

http://www.logusmicrowave.com/main.html

They are also "baseball style", whatever that means.


Best regards,
Spehro Pefhany

 

[Tam/WB2TT]

Go to www.hamradio.com, and look for Alpha Delta. The Delta4 is good for
500MHz, and costs 79.99. The Delta4N is good for 1.3 GHz, and costs 89.99.
These are 4 position switches, I think made by Daiwa. MFJ might make a
cheaper version. Daiwa also makes a 2 position switch for about $30.

Tam

 

[John Todd]

There are tons of microwave-quality, multi-GHz electrically-operated
multipole switches for switching wideband 50-ohm signals. You'd think
there would be comparable manually-operated coaxial switches, but I
can't find one. Does anybody know of a source? I want to manually
switch a sampling scope trigger input in a test set.

I guess I could wire up a power supply and a rotary switch and a coax
relay, grumble.

Thanks,

John

The ones I remember were made by Waters.