BIAS-T DC INJECTOR 100-450 MHZ 500 W DC 30V max 3A max

64,44 (VAT excluded)
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DC INJECTOR FOR 2m/70 cm (minimal VSWR accross this frequency range)

>500 W RF POWER heavy duty PCB with 2-oz copper (2 KV C0G series capacitor)

30 V reverse polarity diode protected DC at 3 A max

5.5 mm socket for DC input/output (1.5 m length red/black cable supplied)

N-type female Connectors 

Aluminium die-cast weather-proof box

Reverse polarity protection

Discharge resistor at the RF line to ground

A DC injector (BIAS-Tee) is often used to make the antenna coaxial cable carry a DC voltage from/to the radio shack to/from the antenna, without needing a second separate DC cable.

One unit can be used at the shack for sending the DC power and a second unit on the antenna site getting the DC to feed a preamp/amp or converter. The RF performance is not compromised.