Line Insulator (CMC) QRO 1 kW

Product detailed description

Line insulator (CMC filter) 1 kW

New design 2025

- more massive boxes, thicker walls
- brass bushings for lid screws
- Uniform box design for all models
- New power limits
- wider choice of mechanical designs
- choice of pressure valve design
- choice of Amphenol N connector
- MINI version also available in clamp mount version
- overall precision design

Suppresses sheath currents when fed by coaxial cable.

Also referred to as Common Mode Choke.

Suitable e.g. for END-FED, Windom antennas or for connection to a coaxial feeder.

Technical data:
- Power loading 1 kW PEP (SSB 1 kW / CW 500 W / DIGI 300 W)
- Teflon insulated coaxial winding
- power compensated for use in contests
- large ferrite toroid 1x FT-240
- impedance 50 Ohms
- connected coaxial cable via PL connectors (UHF), N connectors Amphemol on request
- fasteners are stainless steel
- box size 150x100x60 mm
- the box has IP-65 protection
- weight 0,4 kg

 The box can be supplemented with a pressure valve at an additional cost.
Function of the pressure valve - if the instrument box is exposed to temperature changes - e.g. the difference between day and night temperatures or if heat is generated in the box during operation and the box cools down after operation - pressure changes and condensation of water vapour occur in the sealed box.
In some cases, a vacuum may even be created, which can cause dust and moisture to enter.
Installing a pressure equalizing valve is a very simple way to provide ventilation while preventing vapor condensation and dust from entering the enclosure.
If you are interested in installing a pressure valve, add the valve offered in the Accessories category to your cart. The extra charge is the price of the valve.