Category: Builder Projects

How to Design and Build a Field Expedient End-Fed Half-Wave Antenna for 20m, 40m and 80m

Field expedient antennas differ from home-based, permanent antennas. At a home QTH there is often plenty of room to install a larger, higher antenna. In the home shack, the radio is often capable of putting out a much more powerful signal than a field radio. Out in the field, for example at a campsite, space … Continue reading How to Design and Build a Field Expedient End-Fed Half-Wave Antenna for 20m, 40m and 80m →

A DIY Clone of the Yaesu FH-2 Remote Control Keypad

The biggest disadvantage to using a Yaesu FT-891 transceiver for field operations may be that its small form factor means most features have to be accessed from the menu system. Fortunately, some of the most used features can be easily assigned to the front panel "A", "B" and "C" keys. That's great, but in the … Continue reading A DIY Clone of the Yaesu FH-2 Remote Control Keypad →

A New Loading Coil for the Field Vertical Antenna

There are several reasons for building our own ham radio projects instead of buying commercial products. First, the satisfaction of making contacts using hardware you have built yourself. Second, it usually costs far less to build it yourself. The restrictions, lockdowns and supply chain shortages we have experienced recently sometimes also make it a necessity … Continue reading A New Loading Coil for the Field Vertical Antenna →

Radio Sled First Outing – On the Beach on February 1st!

The first day of February has been very mild with temperatures creeping just above freezing. There is a decent covering of snow, with lots more due over the next couple of days - ideal conditions to give the new radio sled its first tryout. I chose a nearby beach looking out over Georgian Bay which … Continue reading Radio Sled First Outing – On the Beach on February 1st! →

A Radio Sled for Winter Outdoor Ops

VA3KOT's Radio Sled Winters in Southern Ontario last too long! Especially when your principal interest in amateur radio is operating in the Great Outdoors. So, I built a sled. It is based on what ice-fishing enthusiasts call a "Smitty Sled"; I call it simply my radio sled. A pair of child-size downhill skis were purchased … Continue reading A Radio Sled for Winter Outdoor Ops →