“Today we’re on a fox hunt for a hidden transmitter. It’s just like the ‘Amazing Race’ but instead of getting clues, we are using radio direction finding techniques to search for the transmitter hidden somewhere in the city”
Review
The new Malahit-DSP: A portable all-in-one wideband SDR receiver
Technical Specifications 1 MHz to 1000 MHz. Bandwidth 160 kHz. Modulation types AM, WFM, NFM, LSB, USB. Powered by one Li-ion cell. Consumption up to... Read more
IC-9700 Review and Smackdown vs the IC-910H
George and Tommy from AmateurLogic review the IC-9100 with Ray Novak, N9JA from Icom. In this classic smackdown episode, the IC-9700 goes up against t... Read more
![Kenwood TH-D74 VS Icom ID 51A [ Video ]](https://qrznow.com/wp-content/uploads/2017/05/vs-190x122.jpg)
The PackTenna Mini 9:1 Random Wire Antenna Antenna
http://www.packtenna.com Read more
Digital Modes
New Digital Mode from K1JT – FT8
“Dear WSJT-X Beta-Test Colleagues, Steve (K9AN) and I have developed a potential new mode for WSJT-X. We’re calling the mode “FT8... Read more
JS8Call 0.9 Release notes
“Hi Folks, Thanks for staying patient with me on this one. Build servers were being weird today! Happy to bring you release with simple features... Read more
New Digital Modes Gain Traction for Moonbounce, but Occasionally Show Up on HF
In December, Joe Taylor, K1JT, released the latest version (1.7) of his WSJT-X software suite, designed to facilitate basic Amateur Radio communicatio... 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
FT8 Performance Secrets
“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
Antenna
Comet HFJ-350M Portable HF antenna -9 Bands
The Comet FHJ-350M, Portable 9-Band, 1/4 wave base loading telescopic antenna for HF through 6M. Frequency can be changed by means of shorting plug. C... Read more
How High Should a Dipole Be? A Look at Antenna Modeling
“How high should a dipole be? What happens if it’s too low or too high? We turn to EZNEC antenna modeling software to see that the old rul... Read more
The Random Wire Double Zepp Antenna
Dipoles fed with an open wire line are called “Double-Zepp” or “Doublet”. The dipole (2 x Xm) may have any length, the open wi... Read more
What is a Bi-Cone Antenna ?
Bi-Cone Antenna he Bi-Cone Antenna is a Dipole Antenna The Bi-Cone antenna is essentially a finite length dipole antenna that exhibits very wide reson... Read more
Big Wheel Antenna for 2m, 70cm and 6m
The “Big Wheel” is a horizontal polarized omni directional antenna. Usually highly directional antennas are used on VHF and UHF, which hav... Read more
News
Temporary Rule Waivers Announced for 2020 ARRL Field Day
With one month to go before 2020 ARRL Field Day, June 27 – 28, the ARRL Programs and Services Committee (PSC) has adopted two temporary rule waivers f... Read more
One Radio Amateur Aboard Historic SpaceX Launch
If all goes according to plan, NASA astronauts Bob Behnken, KE5GGX, and Doug Hurley will make US space history today [May 27], as human spaceflight re... Read more
Hurricane Exercise Carried Out in Southeastern US
A pre-hurricane season exercise was carried out on May 16 for radio amateurs and the National Weather Service (NWS) in the southeastern US. The scenar... Read more
