T4A – Station setup: connecting a microphone, a power source, a computer, digital equipment, an SWR meter; bonding; Mobile radio... more

Tommy explores the HackRF Porta Pack H4 SDR. Emile and the Simulated Emergency Test. George's adventures in spot welding and... more

T3C - Propagation modes: sporadic E, meteor scatter, auroral propagation, tropospheric ducting, F region skip, Line of sight and radio... more

As seen at Hamvention 2025. Neil Rapp, WB9VPG Amateur of The Year. ARRL reader, Pi-Apps, FM Radio Kit, Cheap Emergency... more

T3B - Electromagnetic wave properties: wavelength vs frequency, nature and velocity of electromagnetic waves, relationship of wavelength and frequency; Electromagnetic... more

A visit to Bletchley Park, Tommy's continuing Meshtastic Adventures part 2, DIY 50 Amp power supply, and more on Hamsci's... more

T3A – Radio wave characteristics: how a radio signal travels, fading, multipath, polarization, wavelength vs absorption, Antenna orientation. 1:06:38

Meshtastic, an open source, off-grid, decentralized, mesh network built to run on affordable, low-power devices. An update on the latest... more

restrictions during emergencies, use of phonetics in message handling. 40:30

A review of emergency power sources. W5SLA Winter Field Day activities. Icom’s new small business radio package. A highly effective... more