bunyip
Well-Known Member
If I mount an FM aerial on the top of my mast adjacent to the VHF aerial will the FM radio be damaged when I transmit on the VHF radio?
FM radio aerial
- Thread starter bunyip
- Start date
steverow
Well-Known Member
It's always a possibility that front end overload to your FM radio could occur,
but quite a slight one, given that there is 50mHz separation between them in frequency.
This should provide adequate attenuation for the broadcast unit.
I wouldn't mount it too close, try and get at least a metre between them if at all possible.
Steve.
but quite a slight one, given that there is 50mHz separation between them in frequency.
This should provide adequate attenuation for the broadcast unit.
I wouldn't mount it too close, try and get at least a metre between them if at all possible.
Steve.
RCGrootveld
Active Member
Mine are approx 1 ft apart, didn't blew up the radio yet; even not with 25W transmissions.
G
Guest
Guest
The wavelength is around 2m so any parallel metal objects in that approximate range will alter the VHF pattern. Keep them physically separated by height.
Birdseye
Well-Known Member
there isnt a lot of room at the masthead, so I would be inclined to think of using one of the spreaders assuming that height is so important to you.
I've just got a bit of lighting flex dangling down from the back of the radio and it works OK
I've just got a bit of lighting flex dangling down from the back of the radio and it works OK
Stoaty
Well-Known Member
I use a window frame as my FM aerial and it works fine.