proper antenna spacing?

[70cutlass442]

Hello,

Im putting a UHF antenna up tomorrow, there will be a tripod with a 10' mast, then the fiberglass antenna... I would like to hang a VHF antenna off of the mast a bit lower, can anyone offer some input as to if and how far apart those antenna should be placed vertically? the VHF antenna is 5' tall. Thanks!

 

[zz0468]

There isn't any magic amount of spacing to avoid interaction within the length of a 10 foot mast. Just separate them as much as you can, and the isolation is what it is.

 

[timkilbride]

Sounds like one antenna is VHF and the other is UHF? Vertically isolated is about all you can do with the limited space. Personally I would put up dual band antenna and use a VHF/UHF duplexer. It would save one less run of coax.

Tim