“The Legendary G5RV Antenna” is the topic of the new (August 15) episode of the ARRL The Doctor is In podcast. Listen…and learn!
Antenna
Inac AH-1430 (20, 17, 15, 12, 10 m band) – Antenna
AH-521, is a halo antenna of small size but high performance. Supports an RF level between 140 and 210 W. Covers bands used between 12 and 30 M... Read more
MonoBeam HF Multibander MB16 10-15-20
MonoBeam The mb16 10/15/20 is an antenna for 14 MHz, 21 MHz and 28 MHz. No traps or inpedance adapting system is used, the feeding is direct with a s... Read more
End Fed Dipoles : So I need a Counterpoise?
Kenneth, WB3JFR, encouraged this question. Do you need to use a counterpoise just because its “End Fed”? Read more
Comet HFJ-350M 160m-5m – Antenna Review
A pocket size antenna that covers all HF bands. Ideal for IC-705 COMET HFJ-350M TOY BOX 10-Band 1.8-50MHz portable Antenna with carrying pouch I... Read more
How To Orientat A Beam Antenna– Beam Headings
Here’s a link to find your declination: http://www.ngdc.noaa.gov/geomag-web/ Request an Azimuthal Map by NS6T Read more
VHF
NEW Launch TYT DM-UVF10 DPMR Digital voiceWalkie Talkie VHF + UHF
TYT DM-UVF10 ,a dualdisplay, dual standby two-way radio,adopts high-technology and novel designDM-UVF10 adopts humanism design,making it smart... Read more
New ! BIG TAJFUN 1000 144 MHz – 1KW
Description New robust Heatsinks – Fischer. Continuous 900W DIGI-modes. Quiet fans. TAJFUN 1000 is small, lightweight but robus LDMOS Power Ampl... Read more
CAS-10 CubeSat has an Amateur Radio Transponder
CAMSAT’s CAS-10 is an 8U CubeSat that will carry an Amateur Radio VHF to UHF linear transponder for SSB communications. A follow on mission from CAS-9... Read more
New ! Wouxun KG-D2000 and KG-D901 DMR APRS GPS – 10 Watts
“WOUXUN ELECTRONICS sincerely invites esteemed you and your company representatives to visit our booth at the coming Hong Kong Electronics Show... Read more
ISS repeater remaining on until after Field Day
The International Space Station crossband FM repeater should remain active until after the Field Day weekend of June 26-27. Amateur Radio on the Inter... Read more
Review
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RF Safety – The Doctor Will See You Now! [ ARRL PODCAST ]
https://www.blubrry.com/arrl_the_doctor_is_in/ RF exposure is a concern for every amateur, but did you know that FCC Rules require you to make an... Read more
Are Echolink and Digital Modes Legal for Overseas Communications?
R.E. Klaus, K1AUS, has been watching episode #408 on when Ham Radio is no longer Ham Radio and he doesn’t have much problem using the internet a... Read more
Grounding, Bonding, Earthing, Shielding and Protecting with W6LG
Part 1 of 2. Jim recommends in detail how he believes grounding should be installed in the typical Ham Radio Statio Read more
How to use the Icom IC-705 with the Xiegu XPA125B Amp
“This was part of the ARRL International DX Contest for SSB at our hunting lease, operating as KN5TR. We used the Icom IC-705 pushing a Xiegu X1... Read more
Antenna Chameleon F-LOOP VS Chameleon P-LOOP
“This is the long awaited Chameleon F-LOOP vs Chameleon P-LOOP review. In this video we go through the design and functionality of each antenna,... Read more
Digital Modes
New Digital Modes Changing Complexion of Bands and Perhaps of Ham Radio
The wave of software-based digital modes over the past several years has altered the atmosphere of the HF bands. Some suggest the popularity of modes... Read more
On-the-Air Test of New FT8 “DXpedition Mode” Set for Early March
A second beta version of WSJT-X version 1.9.0 has been released, the WSJT development group announced this week. The “release candidate,” as it’s call... Read more
The FT4 Protocol for Digital Contesting by K1JT
Joe Taylor, K1JT, Steve Franke, K9AN, and Bill Somerville, G4WJS April 22, 2019 Introduction: FT4 is an experimental digital mode designed specificall... Read more
Caution Urged in Using High Duty Cycle Digital Modes via Satellite
A report in ANS-288 discussed an experiment operating with the WSJT-X FT8 digital mode via satellite. Satellite operators have gained more experience... Read more
ADIF 3.1.0 was approved today
Dave Bernstein reported this on the DXLabs support group today: ————————————... Read more
Antenna
The 10/15/20 Meter Trap Vertical Antenna
“This antenna project came out very nice. It’s a rugged homebrew multi-band trap vertical antenna that works the 10, 15, and 20 met... Read more
KM4ACK End Fed Half Wave Antenna Build And Review
KM4ACK End Fed Half Wave Antenna Build And Review Kit includes everything you need to build a 49:1 end fed half wave antenna. Antenna works without ne... Read more
MFJ -225 HF/VHF, 1.8-170 MHZ GRAPHIC ANALYZER
MFJ-225 HF/VHF Two-Port Graphic Antenna AnalyzerTake RF testing to the next level with the new MFJ-225! All the basic analyzerfunctions you`ve... Read more
Build your own Hexagonal Beam
The hexagonal beam (or known by many as the hex beam) has become a wildly popular antenna. It is a directional antenna that provides great performance... Read more
$40 ANTENNA ANALYZER WITH ARDUINO AND AD9850
If you are a hacker, you might consider ham radio operators as innovative. Most people, however, just see them as cheap. So it is no surprise t... Read more
