“In today’s episode, I do a side by side comparison of the BTECH DMR-6×2
VHF
New UHF ISS Digipeater!
“Recently, the old VHF Ericsson handheld used for the digipeater on the ISS died and it was replaced with an equivalent UHF one. This is my firs… Read more
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
Building a Complete Ham Radio Repeater
Ham Radio Repeater “The complete construction process of a 440MHz UHF Amateur Radio Repeater that was setup on top of our school here at New Mex… Read more
Successful VHF QSO between ZS3 and ZD7
Kobus van der Merwe, ZS3JPY reports that between 19:45 and 21:45 UTC on Wednesday 7 November 2018, a QSO took place on 2 metres between St Helena Isla… Read more
Antenna
Status QUAD: 4/12 StQ 50/144 , cubic 4 elements 50 Mhz and 12 elements 144 Mhz
Simulation table Eznec, gain and F / B in free space and real space at a wavelength from the ground Technical specifications DOWNLOAD HERE THE of the… Read more
Building the Moxon Antenna
Building the Moxon Antenna is fairly easy and lends itself to imagination. No two Moxon’s are identical save the dimensions of the elements… Read more
OptiBeam OB17-4 17 Element 4 Band
4 big monobanders on 1 boom, no traps !!! 3el on 40m / 4el on 20m / 4el wide spaced on 15m / 6el on 10m OptiBeam OB17-4 17 Element, 4… Read more
PA0NHC – active, capacitive receiving antenna Wideband 30kHz-30MHz
PA0NHC – active, capacitive receiving antenna Wideband 30kHz-30MHz Read Full Article: Read more
Review
BTECH DMR-6×2 and Anytone AT-D868UV, Side by Side
“In today’s episode, I do a side by side comparison of the BTECH DMR-6×2 dual band radio, and the Anytone AT-D868UV dual band DMR HT…. Read more
ICOM IC-7610 & excellent noise blanker and noise reduction
ICOM IC-7610 “About two weeks in a row i receive very strong static noise from the nearby electric transformer station. The noise level is S9 +… Read more
Heil Sound of Bob Heil explaining the Parametric Audio Systems (PRAS)
The Heil Sound Parametric Receive Audio System (PRAS) is a state-of-the-art audio system that enhances the internal audio systems of amateur radio, sh… Read more
Measuring Coax Impedance – Ham Nation 378
Measuring Coax Impedance New ARRL 2019 calendar, Drok LM2596 voltage regulator, winterize your equipment. The new ARRL 2019 calendar is here, Amateur… Read more
Review of MFJ-566 Keys–Low Price, High Performance
“MFJ recently announced two new Morse Code straight keys, the MFJ-566M with a metal base and the MFJ-566P with a plastic base. These small, 3D-p… Read more
News
FCC Tells LED Sign Marketers to Abide by Statutes and Rules
The FCC Enforcement Bureau has called on on marketers of light-emitting diode (LED) signs to ensure that these lights comply with FCC rules. Since Mar… Read more
Additional amateur radio communication Cubesats to launch on SSO-A
JY1SAT is a one unit CubeSat, dedicated to the memory of His Majesty the late King Hussein, the first founder of the HAM Radio in Jordan and holder of… Read more
![Sergio & Sergei Hello from Space! [ The Movie ]](https://i2.wp.com/qrznow.com/wp-content/uploads/2018/11/mss01-190x122.jpg?resize=190%2C122&ssl=1)
Sergio & Sergei Hello from Space! [ The Movie ]
Set in the end of the Cold War between the East and West Cold War, friendship through amateur radio of an astronaut (Sergei) staying in the long-term… Read more
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