Instructions & Downloads

Instructions and Support Documents

Basic Installation Notes for all Standard Units

Installation Notes for Low Power Baluns & Ununs

Installation Notes for ALL 4:1 & 9:1 Ununs (models 4130, 4132, 4134, 4932, 4935, 9130, 9132 & 9135)

Installation of Model 4124x

Recommended Open wire/Ladder Line Feedline Lengths for Multiband antennas

Link to Dimensional Drawing of Standard (grey) Enclosure

Link to Dimensional Drawing of Low Power (black) Enclosure


Off Center Fed Dipole - Design Links

Very Good "Standard Design" OCF

OCF Excel Design Program by Walt (KK1CW)

OCF with 80%-20% feedpoint by W8JI

A six band loaded OCF dipole by ON4AA


Installation Notes for End Fed Half Wave Transformers

     Models 49130,49134 & 49131


Instructions for Completion of Balun Kits

Models 1115u-k, 1115t-k and 1115et-k