Modeling Common Dipole Variations

“Viewers queried me about what happens when you shorten a dipole by letting the ends hang down, or have to put up a dipole that can’t be in a straight line, and I was also curious about the effect of my aluminum masts on horizontal dipole performance. EZNEC+ to the rescue. The video shows that modified dipoles can work quite well. Subscribe: https://youtube.com/davidcasler“

Review

Antennas for Portable Amateur / Ham Radio Operation – ICQ Podcast Episode 276

September 16, 2018 No comments

“In this episode, Martin M1MRB is joined by Leslie G0CIB, Edmund M0MNG, Matthew M0NJX and Bill N3JIX to discuss the latest Amateur / Ham Radio n... Read more

ANNOUNCEMENT – FTM-400XD/FTM-400D/FTM-100D PDN

February 15, 2019 No comments

Announcement about the new firmware release for the FTM-400XD, FTM-400D, FTM-100D mobiles radio and PDN functionality. Read more

How to measure current

March 29, 2016 No comments

It is often necessary to know how to measure current using a multimeter. Current measurements are easy to make, but they are done in a slightly differ... Read more

VHF

Baofeng BF-530I P

April 10, 2015 No comments

BAOFENG BF-530I The transceiver is a micro-miniature multiband FM transceiver with extensive receive frequency coverage,providing local-... Read more

Two new Wouxun mobile radios have lower prices

December 17, 2017 No comments

Wouxun mobile radios are known for delivering good performance at a fair price. Two models in particular stand out in this category, the popular UHF/V... Read more

Unboxing the VeroTel VR-6600PRO Mobile Radio – Ham Radio 2.0: Episode 18

October 13, 2015 No comments

ParaPro EQ20B-DSP

September 16, 2017 No comments

The new bhi ParaPro EQ20B-DSP features a 20W modular audio power amplifier with a parametric equaliser and bhi’s latest dual Channel DSP Noise Cancell... Read more

New Icom IC-7851

December 19, 2014 No comments

UPDATE 12/19/20114 0704Z Visit for complete information and photos : http://qrznow.com/icom-ic-7851-new-photos-manual/ Icom IC-7851 HF/6m Amate... Read more

LP-500 Digital Station Monitor

May 06, 2015 No comments

General (exclusive features in red) * Bright, High Resolution 5″ Color TFT Display * 32-bit Main Processor * Graphics and Audio coprocess... Read more

Antenna

HF Vertical Antenna – Cushcraft R9 covers 6,10,12,15,17,20,30,40,80 Meters

July 08, 2015 No comments

HF Vertical Antenna • NO GROUND SYSTEM OR RADIALS NEEDED • RUGGED CONSTRUCTION • INSTANT BAND CHANGING • SLIM LOW PROFILE SILHOUETTE This multi... Read more

JK Antennas JK65 6 Meter Yagi

May 27, 2015 No comments

6 Meter Yagi Want to be heard on 6? JK Antennas JK65 6-Meter Yagi Antennas give you tremendous VHF performance with very high gain on a... Read more

2-Element parasitic Yagis by DK7ZB – 10 15 20 30 meters

June 02, 2015 No comments

2-Element parasitic Yagis by DK7ZB for the Shortwave-Bands 10m-30m No other antenna has a better relation between gain and expense than the 2-E... Read more

Digital Modes

Faster, More Contest-Friendly FT4 Digital Protocol to Debut in a Week

April 23, 2019 No comments

A new, speedier, more contest-friendly digital mode is just days away in beta version. WSJT-X Developers say serious work on the new FT4 protocol bega... Read more

The FT4 Protocol for Digital Contesting by K1JT

April 22, 2019 No comments

Joe Taylor, K1JT, Steve Franke, K9AN, and Bill Somerville, G4WJS April 22, 2019 Introduction: FT4 is an experimental digital mode designed specificall... Read more

FT8 Performance Secrets

April 10, 2019 No comments

“Neil investigates what really matters when you are aiming for the ultimate performance with FT8 and other digital modes. He demonstrates and ex... Read more