Low Power Units

This QRP balun is wound with mil spec Teflon insulated coax which provides a consistent 50 impedance for the windings. The design provides high levels of feedline isolation, RF choking and excellent return loss for those who want top...

This QRP balun is the newest in our low power offerings and provides over 30db of suppression across the full HF spectrum of frequencies. Our design provides high levels of feedline isolation, RF choking and excellent return loss for those who...

After much research and testing, a new transformer design for End Fed Half Wave (EFHW) antennas has been achieved. Developed by Bob Glorioso, W1lS and Bob Rose KC1DSQ, they discovered that most transformers for EFHW antennas used higher impedance...

This model is the very useful 4:1 current balun, one of the most versatile ratios for a low power balun. Great for off center fed dipoles, ladder line fed multiband dipoles etc. Extremely compact and light weight with alternative connectors...

Designed for use with end fed wire antennas and multiband verticals,  this unun is small, compact and perfect for quick portable/emergency installations. This 4:1 Unun (200-50 ohms) will easily handle 300 watts and covers 1.5 - 54 MHz. Using...

Balun Designsis now offering a low power alternative for those who want to use an End Fed Half Wave for portable or temporary installations.  Built with the same craftsmanship as all our other units, this new model provides excellent flexibility and...

While primarily designed for use with a "Loop on Ground" antenna, this is an excellent 9:1 isolation balun for any receive application.  Separate input and output windings provide a high level of isolation and noise reduction and to maximize...

Designed for use with single wire unbalanced antennas, this new addition is small, compact and perfect for quick portable/emergency installations. This 9:1 Unun (450-50 ohms) will easily handle 300 watts and covers 1.5 - 54 MHz. Using this unun will...