Bird Model 8321 Attenuator 30db 50 Ohms 50 Watts

The Series 8320 Tenuline Attenuator are low reflection resistance networks for use in reducing RF power in 50 ohm transmission lines by known and controlled amounts. Over the frequency range of DC to 500 MHz, the power output will be reduced by 30 dB (99.9 percent) ± 0.5 dB. Up to 500 MHz, the input VSWR will not exceed 1.1 and the out put VSWR 1.15.These attenuators are useful for lowering a high input RF power to a level suitable for feeding into a scope, frequency counter or similar device. They are self‐contained instruments that require no external source of power or utility service. All models are portable and have a convenient carrying handle nested among the cooling fins on the top side. If desired the attenuator may be permanently mounted.