When I was deployed, our commo guys gave us wire antennas we could thread through our body armor (through the MOLLE loops). These antennas were just lengths of 50Ω coax that had the insulation stripped leaving the insulated core. ostensibly these antennas would have been tuned for our radios, but I would like to recreate one for my HT while hiking.
Here's the rub, I have a commercial license band around 485 Mhz, but also want to be able to use the same antenna for 2m/70cm MURS, FRS/GMRS (Yes I have the GMRS license too)
I calculate that a 7/8λ antenna for my commercial channel would need to be about 20", but a 2 meter 1/4λ would need to be just around 19".
I get that the difference of these are below the fractional wavelength, so, the 20" for the commercial freq would work for the 2m. But wanted to get some feedback from some people smarter than me to make sure this would work.