New Choke Configuration for AHVD

Asymmetrical Hatted Vertical Dipole at ARRL Field Day 2014 with new RF Choke configuration.

Shown is a better configuration to fasten a choke to the Asymmetrical Hatted Vertical Dipole antenna.

This Balun Chokes

This Balun Chokes

Jim (K9YC) Brown’s toroid winding recipes provide a superb RF choke balun for 30-10m using RG316 and a #43 toroid.

Coax Velocity Factor in Baluns, Does it Matter? Part 2

Coax Velocity Factor in Baluns, Does it Matter?  Part 2

Test results of the Coaxial Cable Balun and the Folded Balun (aka Pawsey Stub) reveal coax Velocity Factor applies to the former, but not the latter, unlike what many web sites would have you believe. Part 2 of 2.

Coax Velocity Factor in Baluns, Does it Matter? Part 1

Coax Velocity Factor in Baluns, Does it Matter?  Part 1

Test results show coaxial cable velocity factor does not always enter into stub length calculations especially in the world of Baluns. Part 1 of 2.

Review of DX Engineering BAL050-H05-A Balun

Review of DX Engineering Balun including a real electrical test.

Buyer Beware – Toroid Prices Vary Greatly

Would you pay three times the price for a product? Watch out for Toroid prices.

Airplane Navigation Receiver Antenna Balun

Described is a unique Balun technique used for the navigation receiver horizontal dipole in Cessna aircraft.

Copper J-Pole Antenna on Play Set

Can a 2 meter J-Pole antenna work well on a child’s playset? Read and find out.

The 43 foot vertical – The answer to everything?

The 43 foot vertical antenna is a popular height being promoted by several antenna manufacturers for 160 to 10 meters. Let’s see why and examine some advantages and pitfalls.

Choke Baluns

Choke Baluns are a good thing and antenna manufacturers should provide them on their balanced antennas.