ARRL has introduced three new e-books to its growing digital library. The newest titles available in the popular Amazon Kindle format include Work the World with JT65 and JT9 by ARRL author Steve Ford, WB8IMY, ARRL’s Small Antennas for Small Spaces, 2nd edition, and Antenna Physics: An Introduction, by Robert J. Zavrel, Jr, W7SX.
Work the World with JT65 and JT9 shows you how to assemble an effective digital communication station and configure the software for best performance. Some operators use these popular digital modes with as little as 5 watts RF output and an indoor antenna. The book is filled with tricks and tips to help you get on their air making contacts.
The fully updated, second edition of ARRL’s Small Antennas for Small Spaces is a must-have for radio amateurs who live in apartments, condominiums, or houses on small lots. The book is filled with practical advice, and will guide you to finding the right antenna design to fit whatever space you have available.
Antenna Physics: An Introduction was written to bridge the gap between basic theory and graduate-level engineering texts. Delve deeper into antenna theory, and explore the underlying principles, and mathematics, of antennas and antenna physics.
“How does the SunSDR2 PRO perform in a multi operator contest environment? We wanted to test the PRO in the toughest possible environment, a multi operator contest effort at a contest super station. SM3SGP, the owner of SK3W invited us to take part in a Multi-Two effort in CQWW SSB where we got the chance to run […] Read more
The just-concluded run of ionospheric investigations conducted from Alaska’s High Frequency Active Auroral Research Program (HAARP) observatory — quite likely the most powerful HF transmission facility in the world — revived the latent short-wave listener (SWL) lurking within most radio amateurs. Operating under Part 5 Experimental license WI2XFX, HAARP this month even aired some classical […] Read more
The FCC has proposed fining a Georgia ham $1000 for alleged failure to properly identify. David J. Tolassi, W4BHV, had been warned last August about not following the Commission’s Part 97 ID rules. The FCC said his “deliberate disregard” of that warning warranted the proposed penalty. “Mr Tolassi…has a history of failing to comply with […] Read more
The PowerGenius XL is a 100% duty cycle, legal limit (1500W ICAS) 1.8-54 MHz RF amplifier intended for both amateur and government use. It incorporates a pair of modern NXP 1K5H LDMOS transistors that are individually capable of 1.5 kW thus providing plenty of headroom for lowest IMD and spurious output. Efficiency and spurious performance […] Read more
BaoFeng UV-82HP WHAT MAKES IT UNIQUE? * It has 3 Power Levels (1, 5, 7 watt) * VFO/ MR (Frequency Mode) can be locked via software * The Dual Push-to-Talk Switch can be synchronized via software to simplify operation of the radio * A new 80 Page In-Depth User’s Guide * It includes the High […] Read more
TYT’s newest addition to their analog radio line is the TH-8600, which is a full-color screen dual band mini-mobile radio. Outputting 25-watts on VHF and 20-watts on UHF, and with its compact size, this radio should be a good addition to any go-kit or compact car. You need a radio for your motorcyle or off-road […] Read more
The ARISS-Russia Cosmonautics Day (International Day of Human Space Flight) SSTV transmissions from the International Space Station have proven popular among earthbound radio amateurs around the globe. The SSTV images, stored on a computer in the ISS Russian segment, commemorate the 40th anniversary of the Interkosmos Project period of the Soviet space program. The transmissions from RS0ISS, […] Read more
7 elements full size arranged on a single boom, divided into 2 parts for 20 m, 2 elements for 15m and 3 elements for 10m in spotlight radiator configuration and reflector-radiator-director. The system is optimized in order to make the maximum gain ratio of forward and front / back, for each individual user bandwidth. The […] Read more
“Faith Hannah and Hope (AE4FH and KM4IPF, respectively) wanted to make a video about getting ready for the approach of Hurricane Matthew. They recently acquired an Alpha Antenna AlphaLoop Magnetic Loop antenna and they took it, along with the Amateur Radio go box they and their siblings assembled, and a battery, to a local park […] Read more
Field Day Greetings Once again this year a group of medium-wave experimental licensees will transmit greetings on 630 meters over the ARRL Field Day weekend, June 27-28. While the 472 to 479 kHz band is not yet available for Amateur Radio use, John Langridge, KB5NJD, said he’d like to continue promoting awareness of the proposed ham band. In April, […] Read more
Photo: W7RN This is a comprehensive intro to the PSK31 digital mode. It’s all of the major concepts and some demonstration crammed into a 30 minute class. Read more
A single lightning strike can destroy thousands of dollars worth of radio equipment. Experienced amateur radio operators know the only sure protection is complete disconnection. This can be a chore, especially when multiple antennas are involved. As well, it is all-to-easy to forget to do it. This system makes it possible to accomplish hands-off multiple […] Read more
NASA’s Juno spacecraft, which in 2013 listened for earthbound radio amateurs sending “HI” in coordinated, very slow-speed CW, now is circling Jupiter. In a first-of-a-kind for an interplanetary spacecraft, Juno was able to detect 10 meter Amateur Radio signals on October 9, 2013, as it looped past Earth for a gravity-assisted boost on its way […] Read more
There is no shortage of ways to deploy a Chameleon Hybrid-mini/micro antenna! In this video, I will show you some of the most common ways to deploy a Chameleon Antenna. Chameleon AntennaTM Hybrid – Mini / Micro Portable High Frequency (HF) Antenna (CHA HYBRID-MINI or CHA HYBRID-MICRO). The CHA HYBRID – MINI / MICRO antenna […] Read more