Check the listing for details. FA-2 Plus 1Hz-6GHz Frequency Counter Frequency Meter Statistical Function. Condition: New. Listed at 130.14 USD. 1Hz-6GHz Frequency Counter Frequency Meter 11Bit/Sec 10MHz OCXO with Power Adapter FA-2 PlusSpecifications:- versions: FA-2-6G PLUS ,1Hz-6GHz - 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: 50 OHM- CH2 frequency accuracy: 0.1s gate: 1Hz at 1GHz; 1s gate: 0.01Hz at 1GHz; 10s gate: 0.001Hz at 1GHz- CH2 input power: -20dBM to +13dBm at 0.5-5G/-20DBM to +13DBM at 0.2-10G- 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 +20DBMOperation modes:- CH1 frequency measurement mode- CH1 statistical mode- CH2 frequency measurement mode- CH2 statistical modeFront 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 inputRear 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 socketOther Parameters:- Types of statistical mode data: average, maximum, minimum, peak-to-peak- Power supply: 11.7-12.5V, Start: