Check the listing for details. BG7TBL -30dBm to +20dBm Frequency Meter Frequency Counter with Power Adapter. Condition: New. Listed at 156.22 USD. Description BG7TBL -30dBm to +20dBm High Sensitivity Frequency Meter High Precision Frequency Counter with Power Adapter Specifications: - Model: FA-2-6G,30MHz-6GHz/ FA-2-3G,30MHz-3GHz - CH1 frequency range: 1Hz-300MHz - CH1 input impedance: 50 OHM/1M OHM - CH1 input reference sensitivity: 50 OHM, 25mVRMS-2VRMS; 1M OHM, 25mVRMS-10VRMS - CH1 frequency accuracy: 0.1s gate: 0.001Hz at 10M; 1s gate: 0.0001Hz at 10M; 10s gate: 0.00001Hz at 10M - CH1 test speed: 11bit/second at 10Mhz - CH1 power test range: -50DBM to +20DBM, 1M-550M at 50 OHM - CH1 power measurement accuracy: 0.5DB at 10MHz - CH1 interface type: BNC - CH2 frequency range: 30MHz-6GHz - CH2 input impedance: 50ohm - CH2 frequency accuracy: 0.1s gate: 1Hz at 1GHz; 1s gate: 0.01Hz at 1GHz; 10s gate: 0.001Hz at 1GHz - CH2 input power: -30dBm to +20dBm - CH2 interface type: SMA - Gate time: 0.1 second/1 second/10 second - Internal reference frequency: 10MHz - Internal reference type: OCXO - Internal frequency standard year aging: 0.5Hz - Internal reference output port power: 4dBm - External reference input power range: 0dBm to +20DBM Operation Modes: - CH1 frequency measurement mode - CH1 statistical mode - CH2 frequency measurement mode - CH2 statistical mode Front Panel's Functions: - MODE: Change operation modes - GATE: Gate time selection - RST: restart measurement - PRE: preset - IMP: CH1 input impedance selection (50 OHM/1M OHM) - LPF: CH1 100K LPF ON/OFF - CH1: Channel 1 input - CH2: Channel 2 input Rear Panel's Functions: - 10M REF INPUT: external 10M reference input - 10M REF OUTPU: 10M reference output - USB: USB port - STD ADJ: internal OCXO frequency fine tuning - ON/OFF: switch - 11.7-12.9V MAX 12W: DC socket Other Parameters: - Types of statistical mode data: average, maximum, minimum, peak-to-peak - Power supply: 11.7-12.5V, Start: