Choke & Transformer Power Ratings - Palomar Engineers®

The question: “what power rating do I need for the choke or impedance transformer for my station? is asked many times and the answer is usually the same: “It depend on you transmission mode, frequency, impedance ratio, duty cycle, and load impedance. (Note: FT8 mode update – see below). This page attempts to clarify some […]

50:300 (6:1) CUBE™ Balun, 1-61 MHz, 1.5/3KW (choose top stud

Fan Dipole for 80/40 Meters - 500/1500/5000 Options

Balun and Unun Configurations - Palomar Engineers®

Bullet End Fed OCF Antenna System, 100/500/1500 Watt Options

50:600 (12:1) CUBE™ Ladder line to Coax Balun, 1.8-31 MHz, 1.5/5

Feed Line Choke Each end fed antenna needs a feed line choke at the radio end of the coax to stop the antenna common mode current (on the coax braid)

End Fed Feed Line Choke for Non-Resonant and End Fed Half Wave Antennas

Multi Ratio 2:1/8:1 CUBE™ Balun, 1.8-31 MHz, 1.5 KW - Antenna

Coax Feed Line Common Mode Chokes (1:1) - Palomar Engineers®

Off Center Fed Antennas

Coax Common Mode Noise Filter - Antenna Products - Palomar Engineers®

Bullet End Fed Antenna System - 71' Antenna (80-6 meters

Use for 1/2″ Cable – RG8, RG213, LMR-400, AC/DC and signal cable for suppression of common mode current (RFI) from 100 KHz to 30 MHz Typical common

Snap On RF Choke - 1/2/12.7mm cable -5/10/15 Bead Option, 100 KHz - 5 MHz, Excellent in AM Broadcast Band