a High Gain UHF Masthead Variable Amplifier Set 1-20dB Antiference Low Noise Wideband High Gain Masthead Amplifier 20dB & 100mA Masthead Power Unit Gain: 1-20dB Signal range: 470-862 MHz DC requirement: 40mA Inputs: 1 Ouputs: 1 Power in: 230 V, 50 Hz, 3A For use: Indoor / Outdoor Connection type: F Connectors Manufacturer: Antiference Part #: MHK1 Digital Compatible: Yes Analogue Compatible: Yes Singal insertion loss: < 1dB