400mhz

Hi everyone, I’m currently studying some diversity techniques in wireless communications, and a question came to mind when studying time/space/frequency diversity. I would like to compare the pros and cons of 2 options: Using a single antenna to do FHSS. Using 2 antennas, each in a well...

I recently moved away from the City I need to Monitor. I'm about 30 Miles away now and The band I need to pick up is 470-500mhz Range. I run Bearcat Trunk Tracker and Currently I'm using a Discone which is NOT picking anything up. Questions to you : What antenna would you recommend ? How...

Hey There Any ideas as to the users behind the following channels, all strong in Portland, ME? 408.2000, 414.3125 probably two channels on same Digital Voice system - MotoTRBO-like 411.650 Digital voice - MotoTRBO-like 415.625 Digital voice - smooth noise unlike Moto sound 419.250 FM Analog...