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.
As I was contacted by a few HAMs where to get “my” box I would like to give you a little parts-overview. Unfortunately I`m not able to manufacture this box in a higher quantity so you will have to build it yourself. All the necessary stuff was purchased in european online-shops but for sure you […] Read more
ARRL Public Relations Committee Chairman Scott Westerman, W9WSW, believes collegiate Amateur Radio clubs need to blow away the dust and cobwebs and modernize, in order to attract new members. He urges college and university ham radio clubs to seek common technological ground with younger generations, in order to attract new Amateur Radio licensees. “We really […] Read more
HYBRID DOUBLE QUAD ANTENNA 2M Double quad antenna amateurradio 2m Antenna for Amateurradio, Hamradio 2m-band VHF (frequency 144.000 MHz – 146.000 MHz / 144.000 MHz – 148.000 MHz) Double quad antenna with 50 ohm and 4 reflector elements For horizontal and vertical polarisation, in front mast mounting. Technical details: Gain 8,5 dBd, V/R 20 […] Read more
Amateur Radio operators have relied on the RF-PRO-1B Active Magnetic Loop Antenna for decades. Now, it is manufactured and sold exclusively by DX Engineering. DX Engineering will also continue to offer all of the service, replacement and repair parts required to keep this antenna in good operating condition. The DX Engineering Active Magnetic Loop Antenna […] Read more
Wave goodbye to Tim as he embarks on his 5 month mission to the International Space Station. There will be launch events held inBelfast, Cardiff, Edinburgh and London as well as at 17 Science and Discovery centres around the UK. If you can’t get to a launch event, why not download our event pack hold […] Read more
This pole is built very similar to our well proven 12m and 18m fiberglass poles, and carefully designed to maintain low weight and perfect balance. During extensive testing for several months on the Baltic sea coast the prototype has weathered all storms without any problems and we feel ready offering this product to the market. Click the photo below for a fullsize view of the pole installed […] Read more
RUSSIAN DX CONTEST – 2016 1. Contest sponsors The “Soyuz Radioljubitelej Rossii” (Union of Radioamateurs of Russia), SRR is pleased to announce 23 International “Russian DX Contest” 2. Contest Period 1200 UTC 19 March – 1159 UTC 20 March 2016 3. Categories: SOAB–MIX – Single Op, All Bands, MIXED, SOAB–MIX-LP – Single Op, All Bands, […] Read more
#ARRL can bring #HamRadio into YOUR class. The results are out of this world! http://t.co/7ZP6P87FMG#STEM#EdTechpic.twitter.com/bmZzmXn4Nr — ARRL Media & PR (@ARRL_PR) October 10, 2015 Read more
VOXTER UV-W8 Technical Parameter Model/ General VOXTER UV-W8 Frequency range VHF 136-174MHz UHF 400-480MHz Channel Capacity 2X128 Channel Spacing 25KHz Antenna Impedance 50 ohm Microphone Impedance 600 ohm Operating Voltage 7.4V DC Frequency Stability ± 2.5PPm Size(without Antenna) 09mm(L)×51mm(W)×33mm(D) Weight(With Battery) 210g Battery 1800mAh Polymer Li-ion Voice prompt CTCSS/DCS Time out timer (TOT) […] Read more
General (exclusive features in red) * Bright, High Resolution 5″ Color TFT Display * 32-bit Main Processor * Graphics and Audio coprocessors * (8)16-bit ADCs with Adjustable Oversampling * Low Distortion Custom Digital Test Signals to Aid in Rig & Amplifier Adjustments using WFM and Spectrum Displays. * Native USB Interface – No Drivers […] Read more
Volunteers from Florida’s West Panhandle District ARES recently supported communications for the inaugural Cottonmouth 100, an “Ultramarathon” 100-mile endurance run. Sixteen Amateur Radio operators from three Florida counties — Escambia, Okaloosa, and Santa Rosa — took part in the event over the November 14-15 weekend. ARES volunteers used 2 meter simplex and one repeater — […] Read more
AT more than 90million miles from Earth, it is hard to believe you can watch activity on our huge Sun in such incredible detail. Read more
Yaesu FT-2DR C4FM 144/430 MHz Dual Band Digital Handheld Transceiver with 1.7″ Touch Screen Display This exciting leading edge Transceiver is designed with ease of use in mind now packing an oversized back-lit touch panel display. At 1.7-inches the high resolution touch screen display provides loads of information through an easily navigable interface, […] Read more
Many of us tried the old “Two tin cans connected by a string” experiment as kids. [Michael Rainey, AA1TJ] never quite forgot it. Back in 2009, he built “El Silbo”, a ham radio transmitter powered entirely by his voice. El Silbo is a Double Side Band (DSB) transmitter for 75 meters. While voice is used to […] Read more