The GP399 Series come with a dual push-to-talk button. The dual PTT is a huge leap forward in the HT technology. It allows you to transmit on two frequencies by the use of the rocker PTT switch. By pressing up you can transmit on "Frequency A" and by pushing down you can transmit on "Frequency B". Frequency A or B can also be used as a scanner of channels, frequencies, CTCSS and DTS tones. VERSATILE RADIO FOR AMATEUR USE The MOTOROLA GP399 is legal for use on amateur frequencies. The GP399 is able to Transmit on Narrowband (12.5kHz) and Wideband (25kHz). DUAL WATCH RECEIVER The MOTOROLA GP399 has one built-in receiver but can "watch" two channels (semi duplex). Monitor two different frequencies (even on different bands (VHF/UHF)) and the radio will monitor both frequencies giving priority to the first station to receive an incoming call. FM BROADCAST STATIONThe GP399 Series come with a dual push-to-talk button. The dual PTT is a huge leap forward in the HT technology. It allows you to transmit on two frequencies by the use of the rocker PTT switch. By pressing up you can transmit on "Frequency A" and by pushing down you can transmit on "Frequency B". Frequency A or B can also be used as a scanner of channels, frequencies, CTCSS and DTS tones. VERSATILE RADIO FOR AMATEUR USE The MOTOROLA GP399 is legal for use on amateur frequencies. The GP399 is able to Transmit on Narrowband (12.5kHz) and Wideband (25kHz). DUAL WATCH RECEIVER The MOTOROLA GP399 has one built-in receiver but can "watch" two channels (semi duplex). Monitor two different frequencies (even on different bands (VHF/UHF)) and the radio will monitor both frequencies giving priority to the first station to receive an incoming call. FM BROADCAST STATIONThe GP399 Series come with a dual push-to-talk button. The dual PTT is a huge leap forward in the HT technology. It allows you to transmit on two frequencies by the use of the rocker PTT switch. By pressing up you can transmit on "Frequency A" and by pushing down you can transmit on "Frequency B". Frequency A or B can also be used as a scanner of channels, frequencies, CTCSS and DTS tones. VERSATILE RADIO FOR AMATEUR USE The MOTOROLA GP399 is legal for use on amateur frequencies. The GP399 is able to Transmit on Narrowband (12.5kHz) and Wideband (25kHz). DUAL WATCH RECEIVER The MOTOROLA GP399 has one built-in receiver but can "watch" two channels (semi duplex). Monitor two different frequencies (even on different bands (VHF/UHF)) and the radio will monitor both frequencies giving priority to the first station to receive an incoming call. FM BROADCAST STATION