Tinkertek
Member
In my truck, I'd like to monitor around 155 MHz and also around 860 MHz. I have an existing NMO base mounted in a stake hole. Don't care to listen to anything VHF low band or UHF. If I were to custom cut a whip without any coils, what would be the optimum length of that whip?
Typically 234 / Freq (in MHz) x 12 would give me the length in inches for a 1/4 wave monopole. However, is there any way to cut the whip to about 18" (to be 1/4 wave resonant on 155 MHz) and some multiple of 1/4 wave on 860 MHz (maybe 1 1/4 wave)? What would that optimum whip length be and how to figure the math out?
Thanks!
Paul
Typically 234 / Freq (in MHz) x 12 would give me the length in inches for a 1/4 wave monopole. However, is there any way to cut the whip to about 18" (to be 1/4 wave resonant on 155 MHz) and some multiple of 1/4 wave on 860 MHz (maybe 1 1/4 wave)? What would that optimum whip length be and how to figure the math out?
Thanks!
Paul