Palomar Engineers will be at the San Diego Hamfest 10/7/2023
and Bob, AK6R will give a talk on End Fed Antennas
NEW PRODUCT ALERT
BULLET-2006 Antenna (Click for more info)
BULLET-4006 Antenna (Click for more info)
BULLET-8006 Antenna
Palomar Engineers Antenna Info Sheet
Popular Categories
HF Wire Antennas - End Feds, Off Center Fed, Loop, T2FD/BBTD, Dipoles and Zepps, 160-6 Meters, Wire, Hardware and Instructions for you.
Ferrite Products - Rings, Snap On, Slip On, useful from 150KHz - 2 GHZ, Mixs 31, 43, 52, 61, 75
RFI Solutions - Consumer Electronics, Computer, Audio/Home Theater, Wall Warts, Solar and more!
Baluns/Ununs/Chokes (1:1-81:1 ratios) for RX, 100/500/1500/5000 Watts including Hybrids (with choke) and Multi-Ratio
Radio Transceiver/Linear Amplifier RFI Kits - All Brands, VLF, HF to UHF
Noise Filters - Coax, AC and DC power 100 KHz - 150 MHz, up to -48 dB noise suppression - hear DX again!
Palomar Engineers® products are over engineered to outperform the competition without being over priced!
Buy DIRECT, on eBay or at Ham Radio Outlet stores nationwide, HRO Product List HERE
QUICK and EASY RFI Solutions for Consumer Electronics - FREE RFI Tip Sheet
Featured Products
On Sale
Coax Common Mode Noise Filter - 500 Watts PEP, 1-60 MHz, -38dB Common Mode Noise Suppression!
Coax Common Mode Noise Filter - 500 Watts PEP, 1-60 MHz, -38dB Common Mode Noise Suppression!
SKU CMNF-500-50
List price
$79.95
Save 13%
$69.95
On Sale
Ferrite Mini Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 10 filters (3/8, 1/2, 3/4)
Ferrite Mini Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 10 filters (3/8, 1/2, 3/4)
SKU FMSCP-31-10
List price
$55.95
Save 11%
$49.95
On Sale
Ferrite Ring and Snap On Combo Pack - 10 Rings (1.4" ID) + 10 Snap On Beads (1/2" ID) - Mix 31 (RFI Range 1-300 MHz) FREE USA SHIPPING
Ferrite Ring and Snap On Combo Pack - 10 Rings (1.4" ID) + 10 Snap On Beads (1/2" ID) - Mix 31 (RFI Range 1-300 MHz) FREE USA SHIPPING
SKU FRSCP-31-20
List price
$155.00
Save 10%
$139.95
On Sale
Ferrite Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 1/4, 3/8, 1/2, 3/4 - 22 filters
Ferrite Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 1/4, 3/8, 1/2, 3/4 - 22 filters
SKU FSCP-31-22
List price
$108.00
Save 12%
$95.00
On Sale
FSB31-1/2, ID=1/2", RFI Range 1-300 MHz - Bulk 10 Pack
FSB31-1/2, ID=1/2", RFI Range 1-300 MHz - Bulk 10 Pack
SKU FSB31-1/2-10
List price
$55.00
Save 9%
$49.95
On Sale
FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Bulk Pack of 10
FT240-3I, ID=1.4", AC/DC/Coax Noise Filter, RFI Range 1-300 MHz, Bulk Pack of 10
SKU F240-31-10
List price
$100.00
Save 10%
$89.95
On Sale
Garage Door Opener RFI Kit
Garage Door Opener RFI Kit
SKU RFI-GDO
List price
$49.95
Save 20%
$39.95
On Sale
Multi-Ring/Multi-Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 17 filters
Multi-Ring/Multi-Snap On Combo Pack, Mix 31, RFI Range 1-300 MHz - 17 filters
SKU MRSCP-31-17
List price
$112.00
Save 15%
$95.00
On Sale
Off Center Fed Dipole Antenna, 20-6 Meters, 500/1.5KW/5KW PEP rated - FREE shipping in USA
Off Center Fed Dipole Antenna, 20-6 Meters, 500/1.5KW/5KW PEP rated - FREE shipping in USA
SKU PAL-OCF2006
List price
$239.95
Save 50%
$119.95
On Sale
Off Center Fed Dipole Antenna, 40-6 Meters, 500/1.5KW/5KW PEP rated - FREE shipping in USA
Off Center Fed Dipole Antenna, 40-6 Meters, 500/1.5KW/5KW PEP rated - FREE shipping in USA
SKU PAL-OCF4010-500
List price
$279.95
Save 46%
$149.95
On Sale
Off Center Fed Dipole Antenna, 80-6 Meters (8 bands), 500/1.5KW/5KW PEP rated - FREE shipping in USA
Off Center Fed Dipole Antenna, 80-6 Meters (8 bands), 500/1.5KW/5KW PEP rated - FREE shipping in USA
SKU PAL-OCF8010
List price
$359.95
Save 53%
$169.95
RFI Common Mode Noise Filter Kits for Generic Antenna Switches - Isolate Non-Selected Coax Braid Noise!
RFI Common Mode Noise Filter Kits for Generic Antenna Switches - Isolate Non-Selected Coax Braid Noise!
Suppress Unwanted Noise & RFI
SKU RFI-AS-GEN-N
$129.95
On Sale
ZS6BKW Center Fed Antenna, 80-6 Meters, 500/1.5KW/5KW PEP rated - FREE shipping in USA
ZS6BKW Center Fed Antenna, 80-6 Meters, 500/1.5KW/5KW PEP rated - FREE shipping in USA
SKU PAL-ZS68006-NNN
List price
$159.95
Save 25%
$119.95
HF 1-61 MHz coax feed line common mode chokes
Palomar Engineers will be at the San Diego Hamfest 10/7/2023
and Bob, AK6R will give a talk on End Fed Antennas
NEW PRODUCT ALERT
BULLET-2006 Antenna (Click for more info)
BULLET-4006 Antenna (Click for more info)
BULLET-8006 Antenna
Palomar Engineers Antenna Info Sheet
Popular Categories
HF Wire Antennas - End Feds, Off Center Fed, Loop, T2FD/BBTD, Dipoles and Zepps, 160-6 Meters, Wire, Hardware and Instructions for you.
Ferrite Products - Rings, Snap On, Slip On, useful from 150KHz - 2 GHZ, Mixs 31, 43, 52, 61, 75
RFI Solutions - Consumer Electronics, Computer, Audio/Home Theater, Wall Warts, Solar and more!
Baluns/Ununs/Chokes (1:1-81:1 ratios) for RX, 100/500/1500/5000 Watts including Hybrids (with choke) and Multi-Ratio
Radio Transceiver/Linear Amplifier RFI Kits - All Brands, VLF, HF to UHF
Noise Filters - Coax, AC and DC power 100 KHz - 150 MHz, up to -48 dB noise suppression - hear DX again!
Palomar Engineers® products are over engineered to outperform the competition without being over priced!Buy DIRECT, on eBay or at Ham Radio Outlet stores nationwide, HRO Product List HERE QUICK and EASY RFI Solutions for Consumer Electronics - FREE RFI Tip Sheet |
Featured Products
1:1 feed line Chokes (also known as feed line current chokes, common mode chokes, line isolators, current mode chokes, and 1:1 baluns/ununs) are available in kit form or assembled form in a weatherproof Current Unun and Balun Enclosure which we call a CUBE™. All 1:1 chokes are ferrite based and are designed for 50 ohm coaxial cable input and 50 ohm output. 1:1 Ferrite toroidal or bead chokes have a higher choking impedance than our popular Sleeve Chokes and various models are available for specific frequency ranges and power levels.
1:1 Chokes are useful for choking common mode currents that may flow on the exterior of the coax cable shield while allowing the signals on the interior of the shield and the center conductor to flow unaffected and keeping the common mode current on the antenna. They isolate the coax shield and prevent it from becoming part of the antenna system.
1:1 Chokes are useful between balanced lines for center fed dipoles at their fundamental frequency (468/f (MHz), beam antennas with a 50 ohm balanced driven element, G5RV, loops, yagis, NVIS antennas, mobile installations, portable antennas and anywhere common mode current (or RFI) is a problem. They are also helpful between transmitter and linear amplifier or between linear amp and antenna tuner or as isolation chokes where higher choking impedance is needed (in the range of 2K-7K ohms).
1:1 Chokes are also very useful as feed line current chokes at the “radio end” of the antenna (we call them coax noise filters) where they choke/filter common mode current induced onto the coax shield from radiated waves (from your antenna, and other sources such as DSL routers, computer devices, plasma TVs, etc. originating in your house or your neighbor’s house). For RFI issues see RFI/EMI Solutions for general use or for specific radios and devices.
For best results we recommend a 1:1 choke at the “antenna end” of the coax and a coax noise filter at the “radio end” of the coax. (A side benefit is a reduction in noise level caused by common mode currents). 1:1 chokes are also available as Sleeve Chokes (Slip on or Snap on) for ease of installation and light weight on the antenna.