This video shows how easy is is to set up an end-fed HF antenna and a fiberglass pole, even in non-ideal weather. Sorry for the water on the lens; there was a lot of wet snow coming down on this day. Note: I put the fed end of the antenna up high on the pole due to past success in that configuration. Other operators prefer having the fed end at ground level. Please feel free to leave a comment telling other viewers (and me) about your experiences.
The DPRK – FSK 600. The modem is based on BFSK bursts transmitted in the lower sideband mode. There are two possible waveforms: 600Bd / 600Hz as... Read more
Des Moines (Iowa) Water Works (DMWW) uses secure radiotelemetry to monitor various remote-site parameters to alert staff to problems. Earlier this yea... Read more
This video illustrates how RF (radio frequency) standing waves are created in transmission lines – through the addition of the forward (t... Read more
MFJ-566M, $29,95 Red/Black Micro Morse Code Key with aluminum base. Liquid smooth and shielded steel ball bearings. Hardened steel pin rotation and st... Read more
Participants in the ARRL’s National Parks on the Air (NPOTA) program have completed more than 1 million contacts! Activators operating from National P... Read more
Written by Megan V. Winslow Imagine a Loma Prieta-grade earthquake in Los Altos Hills: The power is out, fires blaze, cellphone signals are jammed and... Read more
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