Articles written by: Mark Haverstock, K8MSH

close up of a stylized wattmeter face dial
Technical Articles

Ham Radio Tech: Understanding PEP, ICAS, CCS & Duty Cycle

Next time you browse a ham radio catalog, compare the relative power ratings of some of the accessories. I was interested in replacing some antenna switches, and here’s what I […]

ARRL's Amateur Radio Contesting for Beginners book cover stylized
HAM Radio 101

Ham Radio Contesting for Techs? Yes, You Can!

Feeling left out? It’s a fact that most contests take place on the HF bands, but even as a Technician you can participate. For starters, you only need your Technician […]

a small portable ham radio transceiver on a picnic table
DC Power

Ham Radio Tech: Choosing a Battery System for Portable Operations

Most new hams start with an HT (handie-talkie) radio. They’re very affordable, portable, and will get you on the air quickly. No one has to think about batteries and chargers—they’re […]

Cushcraft HV-4E vertical Antenna. cropped
Antennas and Tuners

Ham Radio Review: Cushcraft HV-4E Vertical Antenna

What’s not to love about vertical antennas like the Cushcraft HV-4E? Vertical antennas offer an omnidirectional signal pattern, take up very little space, and are easy to install. They do […]

Ocean Beach Scene with Seaweed
Technical Articles

The Saltwater Amplifier Effect (& How it Impacts Your Amateur Radio Station Performance)

For Guglielmo Marconi, the great challenge was to transmit wireless signals across the Atlantic and to all the ships at sea. He built stations at Poldhu, England; Glace Bay, Nova […]

woman unwinding coaxial cable from large spool
HAM Radio 101

Ham Radio 101: Everything You Wanted to Know About Coax But Were Afraid to Ask

Coax cable has its roots dating back to the mid-1800s, when engineers developed transatlantic cable communication. These early telegraph cables were made up of a center conductor encased in a […]

dx engineering radial plate with radial wire installed
Antenna Tech

Ham Radio Tech: RF Ground—The Un-Ground

When it comes to ham radio, there are grounds…and then there are grounds. Here are three types we typically find with radio systems: Safety grounds protect you from a shock […]

ham radio presentation to a club
HAM Radio 101

Get with the Program & Get More Out of Amateur Radio Club Meetings

We’ve been fortunate to have a hard-working program chair in charge of arranging our club presentations. Even when he’s wintering in Florida, he makes sure everything is ready for the […]

moh-arco-115v_hu_xl rotator controller
Antenna Tech

Doing a Good Turn: Choosing the Right Rotator for Your Amateur Radio Station

A rotator is a handy device used in ham radio communication systems to change the orientation of an antenna. Rotators have two parts, the rotator unit and the controller. The […]

N8DXE radio Repeater Antenna atop a large tower
HAM Radio 101

Ham Radio 101: Understanding Repeater Speak

New hams often wonder what they’ll do or say over the radio after they get their license. All that jargon that hams use can seem like a foreign language to […]