Hello,

Would appreciate your opinions on the following, please:

I have two scanners that I now have connected to a single Scantenna antenna
in the attic.
Receiving only.

The coax comes from the antenna to an A/B push-button switch I bought from
Grove.
It's a cheap switch, only $20, and made in China. They imply on their web
site that the body
is die cast metal, but it came to me with a plastic body.
http://www.grove-ent.com/SWC01.html

It's their SWC01, supposedly good to 2 GHz, and uses F connectors.

It appears identical to the TVC brand AB-90 switch from Home Network Supply,
which says on their description that
there is 90 db isolation.
https://www.homenetworksupply.com/pr..._id=5854125807

Pushbutton A is arranged so that it switches the antenna to the upstairs
scanner, while pushbutton B switches it to the coax leading to the
downstairs scanner.

Well, big surprise.

I can push button B, but yet hear (at much reduced volume) conversations on
the upstairs scanner.

Sure doesn't seem like 90 db isolation.

Is this what is to be expected on these cheap switches, or possibly just a
bum one, or... ?

Any thoughts would be most appreciated.

Thanks,
Bob