Learn how dipole and inverted V antennas work and how to build an hf antenna. Includes tips for construction, mounting and tuning
Recent Posts
Mercury III LDMOS Power Amplifier Kit
Mercury III https://www.km3km.com/ Read more
ARRL Board of Directors Issues Statement on Amateur Radio Parity Act
At its annual meeting January 18 – 19, the ARRL Board of Directors decided that the organization needs to “review, re-examine, and reappraise ARRL’s r... 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
RatPak VHF – Six antenna 1 kW remote switch for 2 meters VHF band without controller, N-type connectors
The Array Solutions RATPAK System – Remote VHF Antenna Switch Features Six antennas to one feed line All Aluminum WX proof and RF proof construc... Read more
FlexRadio 1500W Solid State Amplifier
The Power Genius XL is a 100% duty cycle, legal limit (1500W) 1.8-54 MHz RF amplifier intended for both amateur and government use. It incorporates a... Read more
CQ Magazine Combining January, February 2015 Issues, Closing CQ Plus Digital Supplement
CQ Magazine has announced that it will publish a combined January/February 2015 issue and cease publication of its CQ Plus digital supplement as of t... Read more
Report: Radio Amateurs in India Monitoring “Highly Suspicious” VHF Communications
Authorities in India have asked radio amateurs along the Bengal-Bangladesh border to monitor strange VHF radio transmissions that one of them has call... Read more
An RFI Problem with a Happy Ending BY TF3JB
1. THE PROBLEM One morning in April 2014, annoying reception interference was discovered on the 20 meter band at TF3JB. The interference was “raw and... Read more
INAC AX-330 – HF Antenna
HF Antenna AX-330, is an antenna that covers the spectrum of HF of 3.4 Mhz. 30.5 MHz continuously. Two loops tuned remotely by two servo motors, fed s... Read more
SDRSHARP COMMUNITY PLUGIN PACKAGE NOW AVAILABLE
The SDR# developer in conjunction with Rodrigo Pérez have recently endorsed and released a “community plugin package” over on the SDR# dow... Read more
VHF
EI3KD works Cape Verde on 144 MHz to set new Region 1 DX record
“On Sunday the 5th of August 2018, Mark Turner EI3KD managed to work D4Z on the Cape Verde Islands off the coast of of Africa on 144 MHz, a dist... Read more
Changes to the RSGB 50MHz awards
The RSGB Awards Manager has reviewed the current 50MHz awards offered by the Society and concluded that the existing 50MHz 2-Way Countries a... Read more
D Star & DMR for beginners- Radios, Hotspots and more
“I originally did this video as part of a monthly presentation for my local ham radio club. Its got some specific references to the Auburn CA cl... Read more
How to Extend Radio Range Without Adding a Repeater?
How to Extend Radio Range Without Adding a Repeater? When there’s a need to extend the coverage of handheld two-way radios, the first option is usuall... Read more
Promotion video of ICOM IP730D/IP740D
The IP730D series is an innovative hybrid IP radio with licensed professional radio mode for local and nationwide communications. Read more
News
73 Magazine (June 1997)
73 Magazine (June 1997) Read more
Grassroots on Antenna Parity on Ham Radio Now
Talkin’ about House Bill 1301, the bill that would extend PRB-1 style requirements to Homeowner’s Associations rules, with ARRL Roanoke Vi... Read more
Installation of the Incity tower spire by helicopter
Incity tower The last two components of the Incity Tower spire were put in place by helicopter on Sunday 21 June. This metallic spire, which measures... Read more
TESTING THE RTL-SDR ON WINDOWS 10
TESTING THE RTL-SDR ON WINDOWS 10 RTL-SDR.com reader Marty Wittrock has written in to let us know that he has been successful in getting his HF modifi... Read more
Amateur Radio Digital Communications Announces Grant to ARISS
Amateur Radio Digital Communications (ARDC), owner and manager of AMPRNet, has announced what’s being called “a very generous grant” to Amateur Radio... Read more
