[VHFcontesting] Inline 2m Bandpass Filter

[Floyd Rodgers]

Do some research on stub coax filters. Use them as band reject filters 
on each radio. For example, on the 2m radio, add a 6m stub and 222 stub 
and 432 stub. That way you only receive 2m signals. Same concept to the 
other bands, i.e. no stub filter on the frequency you want to receive 
but stubs for all the others you don not want to hear. Typically done 
with coax so cost is reasonable, just bit more complex since you also 
add a 4 way connector instead of just a tee. I use 2 duplexers in my 
install to siamese 2/ and 70cm into hardline with added benefit of 
~100+db of isolation from each port of my ft847.