Ham radio technology used in Thailand cave rescue
UK radio amateur John Hey G3TDZ (SK) designed the special low frequency radio equipment, the Heyphone, used in the recent cave rescue in Thailand. Southgate
SDR: Direction finding techniques
Public KiwiSDRs distributed around the world can be used to pinpoint the physical locations of any 0 - 30 MHz transmitter using the TDoA technique. RTL-SDR
New: No Nonsense Amateur Radio Podcast
The No Nonsense Amateur Radio Podcast is a discussion of where we are in amateur radio and where we’re going. It is a production of Dan, KB6NU, and Tom, KB5RF. No Nonsense Podcast
A short guide on baluns
Unless precautions are taken to minimize it, all coax fed antennas will have significant current flowing on the outside of the coax shield while transmitting. Surrey Amateur Radio Club
W6/NC-353, Burdell Mountain – 2018
I did this summit late last year as my first morse code activation. Last time it was a combo POTA/SOTA activation. This time would be only SOTA. And it was a heck of a lot warmer too! KE6MT
3D printed 10KV tuning capacitor
I will show you how to build a super-cheap tuning capacitor that will tolerate up to 10,000 Volts of RF and allow you to use up to about 100 Watts of RF into my 14MHz (20m) antenna. The SWLing Post
Directive Systems 2 Meter Rover Yagi
With an 8 foot boom, it’s just the right size to fit on the roof of my SUV for transport and works great on the fiberglass push-up mast. K5ND
