Amateur Radio · VHF/UHF · Summits On The Air · Colorado Mountains · Adventure
I see a lot of cows standing around in Colorado ranch land, and I often wonder what they are thinking. As a result, I’ve been experimenting with a series of graphics that show cows standing out in the field thinking great thoughts. Surprisingly, they are often thinking about ham radio topics. Who knew? I’ve posted … Read more
Lately, for the ARRL January VHF contest, I try to find a SOTA summit to activate. Operating time is usually just a few hours, so it does not make for a big score. The main advantage is for VHF SOTA (Summits On The Air) because there is a lot more activity on 2m CW and … Read more
Charlie/NJ7V and Gaston/KT1RUN did a comparison of VHF antennas during a SOTA activation. Specifically, they compared a rubber duck antenna, a J-pole antenna on a tall mast, and a 3-element Yagi antenna. Spoiler Alert: the rubber duck sucks (they all do) but the Yagi and J-pole performed about the same. Joyce/K0JJW and I use the … Read more
Recently, on the nasota group, there was a discussion about designating an alternative 2m FM frequency for Summits On The Air (SOTA) use (instead of 146.52 MHz). The main driver for this is that 146.52 MHz can get busy with other radio traffic and/or a busy SOTA activation can tie up the calling frequency for … Read more
A big trend in ham radio activity is the use of internet-connected transceivers commonly referred to as hotspots. These devices often use one (or more) of the popular VHF/UHF digital formats (DMR, D-STAR, Fusion) but analog FM is also used. They allow a radio amateur to have a local RF connection into one of the extensive … Read more
After seeing some videos about small HF transceivers for Summits On The Air (SOTA), I feel I need to set the record straight. The following video shows the World’s Smallest SOTA Transceiver in use. Of course, it uses the UHF spectrum because shorter wavelengths enable smaller ham radio stations. The radio shown in the video … Read more