The OFHA uses a 4 MHz. sine wave instead of the square wave used in most Offset Attenuators.
This reduces the interference from pagers and other radio services.
All metal case for better shielding.
Very Important for using with a null type antenna, such as the Fox Hunt Loop.
2M- Minimum attenuation- 30db. Maximum attenuation- 82db
70cm- Minimum attenuation- 31db, Maximum attenuation- 72db
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