I'd use a splitter designed for television use. You can find one at
almost any store selling TV accessories including discount stores like
K-Mart or Wal-Mart. They're very inexpensive. However, they will have
type F connectors which you'll have to adapt to BNC or whatever your
scanner and antenna use. The adapters will probably cost more than the
splitter. If you can't find the adapters where you get the splitter, you
can find them at stores like Radio Shack or Fry's.

The loss is around 3 dB. This is unavoidable. It won't make a noticeable
difference except for weak signals.

One of the properties of the splitter, as opposed to just a tee
connector, is that the two receivers are isolated from each other. So
turning one on or off or disconnecting it should have no effect on the
other.

Roy Lewallen, W7EL

Robert11 wrote:
Hi,

I have two scanners, which I would like them to share a single (Scantenna)
antenna in my attic.

Only one scanner will ever be on at any time.
But, I would like to "permanently" have both scanners attached to the single
antenna.

What would you recommend as a reasonably low cost splitter for this ? (is
Splitter the right term ?)

What type of losses would I expect ?

Just out of curiosity, would the losses be the same if I was actually to use
both scanners at the same time compared to just one of them ?

Thanks,
Bob