If the photograph is clicked, it grows.

HP 85685A 20Hz-2GHz RF Preselector
JPY250,000 1 stock
spe412

Input1
20Hz-50MHz BNC(f) 50ohm Fuse protected
ATT 50dB 3Band 0-2MHz,2-17MHz,17-55MHz Max+30dBm 100Wpeak(10us)
Input2
20MHz-2GHz N(f) 50ohm Attenuator 50dB
2Band 20-550MHz,550M-2GHz Max+30dBm 100Wpeak(10us)
Bypass 0-22GHz for 8566B
Output 20Hz-2GHz +20dBm
Comb Generator 100KHz-2GHz 100KHz,500K,1M,5MHz
EMI receiver spec
10KHz-1GHz res1Hz Freq Selectivity CISPR 6dB
200Hz 10K-150KHz (Band A) 9KHz 150K-30MHz (Band B) 120KHz 30M-1000MHz (Band C,D)
Amplitude +137dBuV acc+-2dB Sensitivity 10K-150KHz -12dBuV 150-1MHz +4dBuV 1-30MHz -13dBuV 30-1GHz -1dBuV
GP-IB
425-137-497mm 100-240V 35VA 14Kg