Questions tagged [vhf]

FM seems to be the most popular in the 144 to 148 MHz Amateur Band .Narrow band is used for spectrum conservation . SSB is also used but is more common on the HF bands .Would SSB provide any range advantage when taking VHF propagation into…

I have a boatload of 165.550 MHz Regency 10.7 MHz IF Crystals. I need them to resonate for 165.500 MHz. How can I shift the crystal frequency down 50 KHz without opening the 'tincan' and messing with it? Can I add a small capacitor in parallel to…

I want to use RF 6886 power amplifier for VHF band design. The datasheet doesn't mention VHF design specifications. Has anyone used the PA for VHF design? If yes then please share your designs.

I'm looking in to vehicle trackers, the kind that allow police to track stolen cars such as Tracker (UK) or LoJack (US), and I can see there is quite a lot of variants out there. The common consensus is that they seem to run on VHF since the claim…