Saturday 23 November 2019 – I had planned to participate in the WIA VHF-UHF field day, however the forecast temperature is 33 degrees C (hot) and we have a thick red dust haze (hot northerly winds blow red dust from central Australia) which isn’t good for the respiratory system. So the plan for today is…
Peter VK3YE recently published a 2m rectangular loop antenna article in Amateur Radio Magazine edition 5 (Sep-Oct 19). The feedpoint impedance of the 2m rectangular loop is 50 ohms thus avoiding the need for a 1/4 wave impedance transformer. Are interested in a 6m oblong loop? I have constructed the lightweight 150 gram (5.2 ounces)…
2m Dipole Antenna Construction Project Lightweight portable QRP 2m & 70cm half wave dipole for SOTA or an emergency antenna for the 2m and 70cm Go-box. Parts: Section of nylon kitchen cutting board 50 x 30 mm x 7 mm (2 inch x 1 1/8 inch x 1/4 inch) 2 x 495 mm 6 section…
Post updated 29 November 2020. Driven elements are now threaded with M3 thread and the center insulator is fitted with two M3 x 20 mm brass stand off nuts. Portable 4 element 2m (145 MHz) DL6WU Yagi for SOTA weighing 460 grams (1 lb) Materials: 4 metre length of 3.1 mm aluminium rod (Alucom) 1…
A homebrew 2m 144.2 MHz vertical 1/2 wave Coaxial Dipole antenna project for your home QTH, SOTA, portable field operations/WICEN exercises or the emergency 2m Go-box. Elsewhere in amateur radio circles this antenna is known as a 2m Flower Pot Antenna. Credits to VK2ZOI (SK). Post updated 5 May 2019, scroll to the bottom for…
2m Slim Jim portable antenna for SOTA activations The 2m band offers a range of voice and digital transmission modes suitable for SOTA activations. My personal preference is SSB 144.200 MHz however this choice may exclude new-comers to amateur radio, who may be building their war-chest of radio gear. Almost all amateur radio operators have…
Get out of the Radio Shack and Live Life 