Used FET LOW NOISE WIDEBAND AMPLIFIER WA-300H manufactured by KURANISHI (倉西). The operation of the connectors and switches has been confirmed in the photos, but detailed measurements of sound quality, gain, etc. have not been performed due to it being a specialized device. Please accept it as-is. 【Condition】 ・Used: Minor scratches and paint剥がれ (peeling) on the exterior (see photos) ・Switch: HPF/POWER switch (ON/OFF/THRU display) ・Connectors: BNC connectors (see photos) ・Refer to the markings on the main unit for power supply method and specifications. ・Battery replaced 【Included Items】 ・Main unit only (everything in the photos) ・Instruction manual (copy, but difficult to read) ＊Manufacturer's manual https://www.nippon.to/other/kuranishi/wa300h-1.gif https://www.nippon.to/other/kuranishi/wa300h-2.gif 【Notes】 ・Please purchase as-is (no claims, no returns). ・Always turn off the main unit's power after use. Battery consumption is rapid.