Retevis MA1 UHF VHF 50W High Power Amateur Ham Radio with Detachable Front Panel

Specifications:ModelMA1GeneralChannel capacity: 999Channel spacing: 5/6.25/8.33/10/12.5/15/20/25/30/50/100KHzModulation type: F3EAntenna impedance: 50ΩFrequency stability: ±5ppm ＠(-10℃-+60℃)Working voltage: DC: 13.8V (±15%)Receiving current: ＜0.5A;Transmission current: ＜ 9A (power=50W/40W）Working temperature: -20℃~+60℃Dimension: 140×43×215mmWeight: 1100gPCB type: Double conversion Super-heterodyneMedium Frequency: 38.85MHZ/450KHz (Left band）ReceiverReceive Frequency Range: VHF:108-174Mhz, UHF: 400-480Mhz;ReceiveTransmit :144-146MHz, 430-440 MHzAviation frequency: AM 108-136Mhz;FM Radio: 64-108Mhz49.95MHz/450KHz (Right band）Sensitivity: 0.8uV for 12dB SN ( 108MHz ~ 134MHz, AM )(Left band）0.2uV for 12dB SN ( 136MHz ~ 174MHz, FM )0.25uV for 12dB SN ( 168MHz ~ 180MHz, FM )0.2uV for 12dB SN ( 400MHz ~ 480MHz, FM )0.25uV for 12dB SN ( 480MHz ~ 520MHz, FM )Squelch sensitivity: 0.16uVSelectivity: 2KHz/30KHz (-6dB/-60dB )Audio output: 8Ω, 2WAudio distortion: ＜5%AF output impedance: 4~16ΩRF Power Amplifier: RF Power MosfetOutput power: VHF：50W/20W/5W; UHF：40W/20W/5WTransmitterTransmit Frequency: VHF: 144-146Mhz; UHF: 430-440MhzModulation type: Variable ReactanceModulation type: Variable ReactanceMax. modulation deviation: ≤5KHz/2.5KHzSpurious emission: ≧ -60dB (144MHz/440MHz)Microphone impedance: 2KΩFeatures:1. Main Band A+Sub Band B independent operation2. V+VU+UU+V Dual Receiver （two independent receivers)3. Detachable Front Panel for Flexible Installation Direction4. RF Powe