Measure length of coax, etc. with your scope, a battery and a resistor – simple TDR
Measure length of coax, etc. with your scope, a battery and a resistor – simple TDR Antenna Force 12...
Author: nerfd
ARISS: Celebrating 20 Years of Continuous Operations on ISS
Twenty years ago – November 13, 2020 – the Expedition-1 crew turned on the ARISS Ericsson radio for the...
9V1YC Singapore. From DXNews.com
9V1YC will be active from Singapore in CQ WW DX CW Contest, 28 – 29 November 2020.
W5NYV
Episode 331 – Michelle Thompson – W5NYV Michelle Thompson, W5NYV, is a third generation amateur, beginning her ham radio...
HI3CC Dominican Republic. From DXNews.com
Nathan, N4YDU will be active as HI3CC from Dominican Republic, IOTA NA – 096, in CQ WW DX CW...
FY5KE French Guiana. From DXNews.com
FY5KE team will be active from French Guiana in CQ WW DX SSB Contest, 26 – 27 October 2019.
Amateur Radio Newsline Report 2250 for Friday December 11 2020
– SOLAR FLARE BRINGS VISIBLE AURORA TO NORTHERN U.S. – FACTORY FIRE EXPECTED TO AFFECT AUDIO SUPPLY CHAIN –...
KN-990 HF 0.1~30MHz SSB/CW/AM/FM/DIGITAL IF-DSP Amateur Ham Shortwave Radio Transceiver Spectrum
KN-990 Features: 3.5 inch LCD, without touch fuctionFrequency range: Reception: 0.1~30MHztransmitting : Amateur shortwave bandWorking mode: SSB/CW/AM/FM/DIGITALReceiving sensitivity: 0.2uVMinimum frequency step:...
PJ5/W5JON Sint Eustatius. From DXNews.com
PJ5/W5JON will be active from Sint Eustatius Island, IOTA NA – 145, 25 October – 1 November 2021.
V47JA Saint Kitts Island. From DXNews.com
W5JON will be active again as V47JA from Saint Kitts Island, IOTA NA-104, 16 October – 12 November 2021.
Transatlantic Tests Mark 99th Anniversary
On December 11, 1921, radio history was made when the signal from amateur station 1BCG in Greenwich, Connecticut, was...
Low-Noise H-Mode Receiver Mixer Developer Colin Horrabin, G3SBI, SK
Prominent British radio amateur Colin Horrabin, G3SBI, died over the last weekend in November, a month after a cancer...
First Solar Image from Hawaii Observatory Shows Close-Up of a Sunspot
The world’s largest solar observatory, National Science Foundation (NSF) Daniel K. Inouye Solar Telescope in Hawaii, has released its...
mAT-705 Tuner Introduction
mAT-705 Tuner Introduction The MAT-705 is a very small and powerful tuner for portable shortwave devices, especially designed for...
Geomagnetic Storm Watches Are in Effect through December 11
NOAA’s Space Weather Prediction Center (SWPC) reports that geomagnetic storm watches are in effect through December 11, due to the effects of...
A One-Two Direct Punch from the Sun | Informal Solar Storm Forecast 12-08-2020
A One-Two Direct Punch from the Sun | Informal Solar Storm Forecast 12-08-2020 Antenna How a Beverage Antenna Works...
Iceland: 1850 kHz authorization renewed
Iceland’s IRA received a positive response from the Post and Telecom Administration (PTA), December 4, to their request to...
FTDX10 – New Video
FTDX10 Hybrid SDR Configuration: Like the FTDX101 series, the new FTDX10 utilizes the Yaesu Hybrid SDR configuration – Narrow...
Turn a Cheap Ham Radio Into An APRS & WinLink Transceiver
“Today we take a look at the Mobilinkd TNC3. The TNC3 uses the KISS protocol to feed packet data...
QYT KT-780 Plus 100 Watts 2 meter Mobile Radio Review and Demo
The QYT KT-780 Plus is a 100 watt mobile radio on the 2 meter Amateur Radio Band, and works...
Build your own Roll Up Slim Jim Antenna for the 2 Meter Ham Radio Band.
Build your own Roll Up Slim Jim Antenna for the 2 Meter Ham Radio Band. Antenna “Big Wire Antennas”...
C7.4 solar flare
Solar activity has been fairly boring during the past few days but a surprise solar flare woke us up....
The AD-3446 is a new large, full-size antenna for 40, 20, 15 and 10 meters
The AD-3446 is a new large, full-size antenna for 40, 20, 15 and 10 meters. 4 efficient monobenders per 1...
New Antenna Physics Book from ARRL!
Written to bridge the gap between basic theory and graduate-level engineering texts, the second edition of Antenna Physics: An...