RX coax match and limiter with CMCC (common-mode current choke) in box

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This is impedance matching transformer for 75 to 50 or 50 to 75 Ohm. Designed for your RX antenna system and offer more than impedance matching. There is also RF limiter which protects your RX against high power. Two transformer design offer also common-mode current filtering. RF limiter protects your receiver against the high power RF signals and prevent from destruction. These high RF signals are common in the multitransmitter environment - contest QTH, but also it can limit strong RF peak from the close lightning. Simply, but powerful, high voltage protection limits AC voltage peaks to 65 V. Transformators work as isolation and Common-mode current filter. Super Fuse protects against high current in the RX line and disconnect the circuit. This SuperFuse is big advantage compare to rest products at the market. Thanks to the circuit construction there is minimal problem with IMD. Limiter works for the signals higher than 20 mW. This device do not degrade the dynamic range of the receiver. The signal which is limited by this protection is usually higher than the value which is in the dynamic range of most receivers on the market.

Main functions:


Where to put this box:

RF limiter module

RF limiter module

The measured values

limiter OFF

limiter 13 dBm

limiter 17 dBm

Common-mode isolation

Related products:

RX protection limiter with CMCC

RX protection limiter with CMCC module

Common-mode RX filters

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small RX preamp

7ANT RX switch