TechTip #5: When is a balun not a balun?

TechTips are occasional brief posts describing easy ways to do difficult things. What is a balun? The simplest definition is "a device for connecting a balanced line to an unbalanced line." Many hams use the term generically to refer to the device that goes in between the antenna wire and the coax. In some cases … Continue reading TechTip #5: When is a balun not a balun? →

Lazy Susan – a directed energy field antenna for the 20 m band

Ham Radio Outside the Box has been re-examining the 3/8 wave vertical antenna with shortened raised radials that was first published here in 2024. She was called "Long Tall Sally" (after the 1950s Little Richard song). Her vertical radiator wire was 25ft long and the two raised radial wires were each 5ft long. Apparently the … Continue reading Lazy Susan – a directed energy field antenna for the 20 m band →

TechTip#4: How to support a raised counterpoise wire on rocky, sandy or snowy ground

TechTips are occasional brief posts describing easy ways to do difficult things. Picture this scenario: a portable operator is setting up an antenna in a park on a nice sunny day in summer. The antenna requires one or more raised counterpoise wires. After raising the antenna, he walks to the far end of the counterpoise … Continue reading TechTip#4: How to support a raised counterpoise wire on rocky, sandy or snowy ground →

Repost: Introducing an antenna called “Long Tall Sally”

Way back in February 2024 Ham Radio Outside the Box published a post titled "A Most Unusual Vertical Antenna for 20m". It introduced the idea that the radiating element of a raised quarter wave vertical antenna could be stretched to a much longer length with a corresponding shortening of its radials. The idea is worth … Continue reading Repost: Introducing an antenna called “Long Tall Sally” →

TechTip #3 Improving the “Titanic” 40m field expedient backpack portable antenna

TechTips on Ham Radio Outside the Box are brief posts of a technical nature. Back in October 2024 Ham Radio Outside the Box introduced an interesting design for a compact, field portable antenna for the 40m band. Named the "Titanic", it was a T-antenna similar in appearance to the one used on the tragically famous … Continue reading TechTip #3 Improving the “Titanic” 40m field expedient backpack portable antenna →

No loading coils, no top-hats, no transformers, no ununs, no baluns, no tuners, no radials – just the perfect antenna?

Just imagine, if you could get rid of all those lossy loading coils, impedance transformers, ununs, baluns, tuners and ground radial trip wires. What do you have left? Could it be the most perfect, the ultimate, 100% efficient, dream antenna? Yes, yes; it's a dream! But back in the real world ... I spent most … Continue reading No loading coils, no top-hats, no transformers, no ununs, no baluns, no tuners, no radials – just the perfect antenna? →

There is a “small” problem with the QRP Labs QMX transceiver – and an easy fix

Why was it born so beautiful, why was it born so small? I have to admit to a love/hate relationship with my microscopic, yet bursting with features, QMX transceiver. This marvel of technology is densely packed into a shirt pocket-sized sturdy aluminum case. Just how did the R&D department at Turkey's QRP Labs manage to … Continue reading There is a “small” problem with the QRP Labs QMX transceiver – and an easy fix →