Choke & Transformer Power Ratings - Palomar Engineers®
Por um escritor misterioso
Last updated 18 fevereiro 2025
![Choke & Transformer Power Ratings - Palomar Engineers®](https://palomar-engineers.com/wp-content/uploads/PEP-Power-Ratings.png)
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 […]
![Choke & Transformer Power Ratings - Palomar Engineers®](https://d2j6dbq0eux0bg.cloudfront.net/images/10325621/1032773009.jpg)
50:300 (6:1) CUBE™ Balun, 1-61 MHz, 1.5/3KW (choose top stud
![Choke & Transformer Power Ratings - Palomar Engineers®](https://i0.wp.com/d2j6dbq0eux0bg.cloudfront.net/images/10325621/3442428213.jpg?ssl=1)
Fan Dipole for 80/40 Meters - 500/1500/5000 Options
![Choke & Transformer Power Ratings - Palomar Engineers®](https://i0.wp.com/palomar-engineers.com/wp-content/uploads/Unun-1-Definition.png?ssl=1)
Balun and Unun Configurations - Palomar Engineers®
![Choke & Transformer Power Ratings - Palomar Engineers®](https://d2j6dbq0eux0bg.cloudfront.net/images/10325621/3793612874.png)
Bullet End Fed OCF Antenna System, 100/500/1500 Watt Options
![Choke & Transformer Power Ratings - Palomar Engineers®](https://d2j6dbq0eux0bg.cloudfront.net/images/10325621/3461219288.jpg)
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)
![Choke & Transformer Power Ratings - Palomar Engineers®](https://i0.wp.com/d2j6dbq0eux0bg.cloudfront.net/images/10325621/3465681197.jpg?ssl=1)
End Fed Feed Line Choke for Non-Resonant and End Fed Half Wave Antennas
![Choke & Transformer Power Ratings - Palomar Engineers®](https://d2j6dbq0eux0bg.cloudfront.net/images/10325621/3000772014.jpg)
Multi Ratio 2:1/8:1 CUBE™ Balun, 1.8-31 MHz, 1.5 KW - Antenna
![Choke & Transformer Power Ratings - Palomar Engineers®](https://i0.wp.com/palomar-engineers.com/wp-content/uploads/20141027_110850.jpg?fit=2048%2C1152&ssl=1)
Coax Feed Line Common Mode Chokes (1:1) - Palomar Engineers®
![Choke & Transformer Power Ratings - Palomar Engineers®](https://s3.amazonaws.com/images.ecwid.com/images/10325621/3721122508.png)
Off Center Fed Antennas
![Choke & Transformer Power Ratings - Palomar Engineers®](https://d2j6dbq0eux0bg.cloudfront.net/images/10325621/945280347.jpg)
Coax Common Mode Noise Filter - Antenna Products - Palomar Engineers®
![Choke & Transformer Power Ratings - Palomar Engineers®](https://i0.wp.com/d2j6dbq0eux0bg.cloudfront.net/images/10325621/3420773755.jpg?ssl=1)
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
![Choke & Transformer Power Ratings - Palomar Engineers®](https://i0.wp.com/d2j6dbq0eux0bg.cloudfront.net/images/10325621/2302699123.jpg?ssl=1)
Snap On RF Choke - 1/2/12.7mm cable -5/10/15 Bead Option, 100 KHz - 5 MHz, Excellent in AM Broadcast Band
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