Jim makes and then shows his tunable half wavelength dipole antenna. Using an antenna analyzer,
Jim finds the resonant frequency and the lowest SWR do not occur at the same frequency.
CableKnife claims the title of the “world’s best hand held cable stripper” and looking at the prototype, I find it difficult to disagree with this lab... Read more
http://www.alphaantenna.com The Alpha Loop http://chameleonantenna.com The CHA-P-Loop http://www.alexloop.com My Alex Loop Antenna http://www.elecraft... Read more
Adding an amp is not as straightforward as it sounds. There is much to consider, including AC power. Read more
The TH-8600 is a powerful dual band, dual display and dual standby transceiver with 20 watts of power on 400-470MHz UHF and up to 25 watts on 136-174M... Read more
“Hi all, Many of us have made many QSOs using the new 77-bit messages on 7.078 and 14.078 MHz. Overall the results have been good — but no... Read more