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You are here: Home > Baluns > 1:1 Beam Baluns

1:1 Baluns for Beam Antennas

Browse our selection of 1:1 Baluns.

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RF Isolator - ISO-Max W2AU 1:1 HF Beam Balun W2DU 1:1 HF Choke Beam Balun W2DU type Inline Balun 1:1 with Double SO-239
Our Price: $31.99
Our Price: $32.99
Our Price: $34.99
Our Price: $36.65
The ISO-Max RF Isolator is the type of accessory every ham shack needs. ISO-Max keeps unwanted RF from traveling on the shield of your coax - keeping RF out of computers, transceivers, equipment chassis, microphones, keys, everything@

This is the same unwanted RF that cause "RF bite", equipment lockup and so many other pesky problems.

The ISO-Max has two SO-239 female receptacles to accept male PL-259 cables.

11 inches long. 50 Ohm. For HF frequencies between 1.8 and 30 MHz. This unit can handle 4 KW.

Recommended install points: Transceiver output, antenna tuner output, amplifier output, mobile installations*

This unit is also perfect for portable, emergency and field day situations.

*Stay RF in a mobile environment can cause damage to/or render inoperative your cars sensitive electronics.



This weatherized, rugged voltage/transformer balun is designed to be mounted horizontally on the boom of a beam. This 1:1 current (choke) balun is a top choice DXers, contesters and other high duty cycle users looking to maximize performance while running QRO. Typical use: For use with monoband dipoles that already have a center insulator.