Palomar Engineers offers a variety of impedance transformers configured as Baluns (balanced coax to unbalanced load) or Ununs (unbalanced coax to unbalanced load) for matching typical 50 ohm feed line impedances to antenna or other load impedances.

We specify impedance ratios as an output to input ratio where the output (or load) is given first and the input is given second (e.g. 100:50 (2:1) would mean a 100 ohm output and a 50 ohm input; a 25:50 (1:2) would mean a 25 ohm load and a 50 ohm input). Most all products use a 50 ohm input unless otherwise specified.

We have products that are available as kits for the do-it-yourself (DIY) person or fully assembled and tested units for the “Plug & Play” crowd.

Summer Specials

RFI Icom 7300 2 Product web 2 - Store
Suppresses TRANSMIT RFI and RECEIVE Common Mode Noise
PEI BAS 500 2 web - Store

80-6 Meters End Fed Antenna - 71' - 500 Watts - Portable or Stealth


MC 1 3000 Product 3 web - Store
Coax Choke/line isolator for all antenna types, 1-61 MHz, 3KW PEP
Palomar Engineers Mini Choker line isolator product - Store

Coax Choke/Line Isolator for all antenna types - 500 Watts, 1-61 MHz


Palomar Engineers Coax Noise Filter CMNF-500-50
Reduces Coax Common Mode Noise up to 6 "S" Units, 1 to 61 MHz
FSCP 31 22 Lebel for web - Store
Our BEST VALUE Combo Snap On Pack - all popular sizes, 1-300 MHz
F240 31 10 Label Page 1 labels - Store
Best Deal on Ferrite Toroids - Buy 9 at regular price and get 1 FREE!
FSB31 .5 30 single label for web 2 1 - Store
Our MOST ECONOMICAL 1/2" Snap On Ferrite Bulk Pack