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The Doctor explains “zero beating.” It isn’t just about CW. |
VHF
VGC VR-6600PRO
Product Description Place of Origin Fujian, China (Mainland) Brand Name VGC Model Number VR-6600PRO Type Vehicle Mouted Dimensions 157 X 66 X 33.5mm F... Read more
ARRL Announces Partnership with RFinder — The Worldwide Repeater Directory
ARRL has established an agreement with RFinder, the creator of a web and app-based directory of Amateur Radio repeaters worldwide, to be its preferred... Read more
AnyTone AT-588 VHF
AnyTone AT-588 A really good little 2m mobile at a great price, the AT588 packs a punch too with its adjustable power output up to 60 watts. Output Po... Read more
![Kenwood TH-D74 APRS & DSTAR Radio [ Video ] – English Version](https://qrznow.com/wp-content/uploads/2016/08/14095878_1034440039987414_1994225713345294467_n-190x122.jpg)
Radioddity GD-55 Plus UHF 400-480MHz Waterproof DMR Digital Radio,10W with 2800mAh Battery Mototrbo Dual Time Slot (Tier I&II)
Brief introduction for Radioddity GD-55 Plus, A Practical DMR GD-55 Plus Differentiating Factors 10W High Power IP-67 Waterproofed Mototrbo Tie... Read more
Review
HRN 399 3/4 – DMR Overview
David and Guest Darren AJ6BL talk about getting up and running on DMR. Read more
SDRPlay RSP-1A VS Airspy HF+
“Comparing reception of two popular SDR Receivers using the same antenna at 5 PM local time. Short wave and medium wave frequencies. Using the s... Read more
WA9ZCO Wins the February QST Cover Plaque Award
The winning article for the February 2020 QST Cover Plaque award is “CW Combo Key” by Marc Alan Winzenried, WA9ZCO. The QST Cover Plaque Award —... Read more
![SWR Simplified [ ARRL PODCAST ]](https://qrznow.com/wp-content/uploads/2019/03/antenna-analyzer-mfj-225-swr-190x122.jpg)
SWR Simplified [ ARRL PODCAST ]
A discussion of SWR — Standing Wave Ratio — can be complicated, but it really doesn’t need to be. Read more
![“Life Above 50 MHz” [ ARRL PODCAST ]](https://qrznow.com/wp-content/uploads/2019/01/vhf-136-174m-ham-radio-4elements-outdoor-yagi-antenna-vhf-radio-repeater-base-yagi-antenna-190x122.jpg)
“Life Above 50 MHz” [ ARRL PODCAST ]
“Life Above 50 MHz” is the topic of the new (January 17) episode of the “ARRL The Doctor is In” podcast. Listen…and learn! Sponsored by DX Eng... Read more
Antenna
Why I LOVE my Antenna Wire Measuring Counter!
This is an amazing machine made by “Sam” in the USA. I thank him for hand-assembling these. I have two now – and Sam is furnishing m... Read more
UltraLight MLA antenna ver. 4 designed for lower HF bands.
This 4th version of the QRP UltraLight MLA antenna has the same foldable construction designed for easy carry in a common laptop bag same as the 3rd v... Read more
10 6 MOXI 5 | NEW FOR 2015! | 10 METER / 6 METER MOXON YAGI HYBRID BEAM
Stunning 2015 design from G0KSC: ten meter Moxon mated with a 3 element six meter Yagi on one boom with a common feedline. Look at the pattern and ban... Read more
3D Print – 3 element 2m (145 MHz) Ultra Portable yagi
3D Print – 3 element 2m (145 MHz) Ultra Portable yagi by OK1CDJ Description Tape measurement yagi. Weight only 170 g. The longest part is 530 mm... Read more
Digital Modes
Packet Engine Pro HF Modem
Demonstration of the new HF 300b Packet Modem Read more
FSQCALL – New Digital Mode
A Directed Messaging System for FSQ Introducing FSQCall Sending text using FSQ is generally very reliable, certainly more so than other digital modes... Read more
New FT4 Mode with more 20K spots in few your hours realese
Source: LINK WSJTX 2.1.0RC5 Release! – The FT4 Protocol for Digital Contesting The FT4 Protocol for Digital Contesting by K1J... Read more
New Digital Mode FT-8 Ham Radio Digital Mode for the Fast & Furious!
Here’s a short demonstration on the new digital mode FT-8 developed by K1JT & K9AN. Part of the WSJT-X software suite. We’ll go over h... 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
