CQ Amateur Radio

The K4HRK Antenna Launcher - A New Twist on a Traditional Design

This antenna launcher is a new twist on the compressed air launchers hams have been using for decades.

I’ve watched YouTube videos of potato-launching air cannons and noticed many of the new designs use a solenoid-operated water sprinkler valve, less the solenoid, to release the compressed air and propel the potato though the barrel. I thought, why not use this design to launch our antennas? I normally have issues with losing my point of aim when turning the large manual valve on my traditional launcher. Maybe you have, too. There may be a few antenna launchers out there with the sprinkler valve modification, but I imagined one that would shoulder, aim and fire like a rifle (Photo A).

This design does just that with a pull of the “trigger” and no manual valve

You’re reading a preview, subscribe to read more.

More from CQ Amateur Radio

CQ Amateur Radio10 min read
Transceiver to Computer Interface
Many modern-day amateur radio programs use a single USB cable between the transceiver and computer to transfer three basic types of information; audio signals which can include SSB, RTTY, digital or CW signals, critical transceiver control and pollin
CQ Amateur Radio13 min read
Radio Renaissance: A Retirement Story
Here I am, it is late afternoon and I’m sitting in the backyard with Paula, my bride of 53 years. We are sipping wine and enjoying the end of the day. This is a regular experience for us now. We chat and relax around what I like to call the “eternal
CQ Amateur Radio1 min read
Looking Ahead in CQ
Here are some of the articles we’re working on for upcoming issues of CQ: • Results: 2023 CQ WPX CW Contest • US Medalists at 2023 World ARDF Championship • Rules: 2024 CQ DX Marathon; 2024 CQWW 160-Meter Contest • Sweepstakes Success Tips • A “Sherl

Related