Diamond SRH77CA 2M/440 HT Antenna SMA Not in stock Scanner Antennas The Diamond RH77CA is an HT antenna for transmit on 2 meters and 440 MHz. It is a 1/4 wave on 2 meters and a 1/2 wave on 440. It can additionally receive these bands: 120, 150, 300, 450, 800 and 900 MHz...