Tube Feed Line Chokes


Quick, Easy & Affordable Antennas and RFI Solutions for everybody!

Helpful Technical Guides - Learn how to select, configure and use our products in your station -FREE Downloads


HF WIRE ANTENNAS
OVER 10,000 Installed worldwide!

BULLET End Fed Antennas
Shorter, safer, more bands in less space than EFHW
Off Center Fed Dipoles
Traditional dipole style but cut for more bands then other vendors!
End Fed OCF
160-6M, 80-6M, 40-6M or 20-6M but only 2 supports, shorter than EFHW - popular with POTA ops
Full Wave Loop
Quieter on receive and multi-directional gain on higher bands, no need to rotate!

ZS6BKW Multi-band Ladder Line Fed
No tune on 5 bands!

Broadband Terminated Dipoles (BBTD, T2FD)
DIY Parts for ALE, MARS, Hi duty cycle data modes


ANTENNA ACCESSORIES
Coax Common Mode Chokes - Slip On, Snap On, Jumper, Mini/Maxi-Choker/Line Isolator, DIY Ferrite Choke Kits

Noise Filters
- Coax, AC/DC Power 100 KHz - 150 MHz, up to -48 dB noise suppression - hear DX again!

Baluns & Ununs (1:1-81:1 ratios) for RX, 100/500/1500/5000 Watts including Hybrids (with choke) and Multi-Ratio

RFI SOLUTIONS
RF Detectors - SIGNALPEN(TM) PENCIL SIZE RF Detector, 60 Hz to 5 GHz, Miliwatts to Kilowatts, Direct Contact or Inductive Detector, No Battery & Fits in Your Shirt Pocket!

RFI Solutions - Consumer Electronics, Ham Radio, Computer, Audio/Home Theater, Wall Warts, Solar and more!

Ferrite Products- Rings, Snap On, Slip On, useful from 150KHz - 2 GHZ, Mixes 31, 43, 52, 61, 75, 77

Radio Transceiver/Linear Amplifier RFI Kits - All Brands, VLF to UHF, QRP to Multi-KW

FREE USPS Ground SHIPPING to USA Destinations for orders over $100!


SELECT A CATEGORY TO EXPLORE


Filters

Filters
TUBE feed line chokes/Line Isolators are used to suppress common mode current carried on the outside of the  coax braid which is often responsible for receiver noise and RFI in the receiver/transmitter. These chokes are very useful for suppressing RFI common mode current at the antenna feed point, at 1/4 wavelength intervals along the coax feed line and also at the entrance to the radio station.  They are available with various input and output connectors so as to conveniently connect to standard output connectors already installed on your feed line.

Palomar Engineers TUBE feed line chokes are designed to have 2-5 times more choking impedance over a broader frequency range than competitor units in similar packaging.  Each choke has the choking impedance and effective frequency range on the product label so you can choose the product best suited for your application.