... .25, 10, 12.5, 25, 37.5, 50,100 kHz optional Antenna impedance: 50Ω (High Gain Antenna) single band, Dual-display, ... grade selectable Frequency difference setting PC programmableTechnical parameters Item number TH-F2GeneralFrequency Range136-174/245-246/400-470/350-390/465 ... ≥60dbSpurious Rejection≥65dbBlocking≥85 5W uhf handheld Walkie talkie TH-F2 two way radio used walkie talkie vhf/uhf handheld ...