Originally Posted by Simon B
Is there any benefit to fitting two antennas exactly the same size to recieve and transmit on i.e. not duplex where one might recieve on one and transmit on the other but not both on both....if that makes any sense.
I'd read, possibly in RIB intl article that two antennas give more signal is it halved? i.e. 12.5 watts per antenna? and does it produce bands of constructive and destructive inteference.
In the good old daye when the RX and TX were in diff parts of the radio, some in diff rooms!, this would have been possible and in a lot of cases how it worked.
Most modern radio's have one main PCB containing both the RX and the TX parts of the unit.
Modern radio's will not allow for two antenna working.
You would find it almost impossible to make work with out lots of external bits.
You would also come into issues of mounting as the antenna could and would effect each other.
The only time two comes in to play these days is with a two box DSC system like the M503 and DS100.
You then must have two but the one on the DSC unit is for the RX of DSC calls only..
Having said that two does look good on the A frame, always good to have a spare!!