This is the third in a series of videos following my efforts to track down a source of local QRM / Radio Interference. Following the build of a successful direction finding loop, in this video I build an RF sniffer probe and track down the source of QRM and finally eliminate it! The sniffer is for pointing a suspect items up close when perhaps the loop might be overwhelmed or non-directional if say inside a building
Antenna
Wideband Desktop Discone Antenna – 25 MHZ – 2000 MHz Coverage
“Here we take a look at the Skyscan Desktop antenna with a rated frequency range of between 25 Mhz up to 2 Ghz. We test the antenna indoor and o... Read more
Wolf River Coils Silver Bullet 1000 Coil – Ham Radio Q&A
The Wolf River Coils Silver Bullet 1000 and the Silver Bullet mini are a variation of the popular screwdriver style antenna. But instead of a motorize... Read more
Sea Water Antenna
The US Navy has created a device which turns a jet of sea water into an impromptu liquid antenna, creating a powerful, high frequency broadcast... 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
Radio Direction Finder DF2020T
DF2020T Radio Direction Finder kit requires minimum assembly for 10~15 Minutes The Stealth DDF2020T/GPS is an economical but very sophisticated Dopple... Read more
Review
QST Product Review – IC 7100 HF/VHF/UHF Transceiver
Reviewed by Ward Silver, NØAX ARRL Contributing Editor n0ax@arrl.org The Icom IC-7100 certainly made a splash when it was first announced in 20... Read more
![Coaxial Cable vs Balanced Lines – “ARRL The Doctor is In“ [PODCAST]](https://qrznow.com/wp-content/uploads/2017/11/Coaxial-Cable_-265x168.jpg)
Coaxial Cable vs Balanced Lines – “ARRL The Doctor is In“ [PODCAST]
“Coaxial Cable vs Balanced Lines” is the topic of the current (November 23) episode of the “ARRL The Doctor is In“ podcast. Listen…and learn!... Read more
So you think you need an antenna analyzer?
“A discussion came up on the HRCC facebook page over if an antenna analyzer was needed to setup an amateur radio antenna properlly. The answer i... Read more
Getting the Sidebands Mixed Up Creates Audio Garbage
Roger Nielsen, K7PUG, is having trouble with his Elecraft K3 after a factory reset. Everything sounds garbled and won’t tune in. Let’s tro... Read more
Equipment
NEW Alinco DM330FXE 30A Supply with USB ports
Alinco DM-330FXE This CE approved switch mode power supply packs a lot of features into a compact, lightweight design that boasts a 9-15VDC variable... Read more
DX Engineering Radio RF Ground Plane Kits
DX Engineering Radio RF Ground Plane Kits provide an effective method of reducing stray RF pickup by equipment and interconnecting cables. Used under... Read more
New release of 144/430 MHz dual bander TH-D74 Kenwood
TH-D74 Kenwood Industry’s first*1 portable amateur radio, supporting on both APRS and D-STAR® JVCKENWOOD will release a new high-end 144/430 MHz... Read more
New RigExpert Green ZOOM Family of the antenna & cable analyzers
“New RigExpert Green ZOOM Family of the antenna & cable analyzers Dear RigExpert Followers, We are glad to present you a New RigExpert Green... Read more
Elecraft PX3 PANADAPTER
Elecraft PX3 PANADAPTER •High-performance companion panadapter for the Elecraft KX3 transceiver •Full-color waterfall and spectrum displays... Read more
News
WRTC 2023 AWARD : January 2023…headset on!
WRTC Organizing Committee is proud to announce a 2023 edition of WRTC 2023 AWARD! This is NOT WRTC 2022 Contest that will be held in Bologna in July 2... Read more
Dayton Hamvention Announces Theme for 2023
Dayton Hamvention® 2023 is just over 6 months away, and next year’s Hamvention team has selected “Innovation!” as the event theme. T... Read more
The 2023 ARRL Calendar
Keep track of your important dates, ARRL contests, and holidays with a 2023 ARRL Calendar. This year’s calendar features Collegiate Amateur Radi... Read more
The Secret Government Radio Signals I Heard Today!
The Secret Government Radio Signals Read more
Radio Amateurs Support the Great ShakeOut 2022 in Puerto Rico
Students from the Crop Protection Student Association at the University of Puerto Rico in Mayagüez participated in a communications practice session a... Read more
