Why is Coax 50 Ohms?
Antenna
“KBG” Short Dipole Antenna
Short Dipole Antenna No, it is not a KGB antenna, even though it’s overall length makes it a stealthy antenna: 1m8 for the... Read more
E-Z-O Antenna
A Successful Alternative to the Cubical Quad he revolutionary antenna you see pictured, the E-Z-O, was created by N8PPQ as the result of his efforts t... Read more
HF Unity Gain Antenna Survey (#246)
“A Necessarily Incomplete Survey of Amateur Radio HF Unity Gain Antennas–a look at the many, many antennas used in ham radio that have abo... Read more
Grounding a Counterpoise on End-Fed Half Wave Antenna
Laurence, WA2TLY, is asking some questions about a few aspects of the EFHW 80-10 antenna, Why they are there and what they are for? Read more
Skew Planar Wheel Antenna for 435MHz
Antenna for 435MHz Skew-Planar antenna has had little attention in the amateur radio community despite being present in QST by Robert H.... Read more
Review
Xiegu G90 HF SDR Transceiver
HF SDR Transceiver Read more
Noise Blankers and Noise Reduction -ARRL The Doctor is In
Different tools for different applications. The Doctor explains the differences. Read more
Man climbs 400-foot TV tower at WKMG News 6 in Orlando
ORLANDO, Fla. — OrlaThe man has climbed the tower outside of the WKMG studios on John Young Parkway.ndo police have been called to a local TV station... Read more
How Your Radio’s Final Amp Class Affects Efficiency
An Oggie asks why his radio draws so much more power than the 100 watts it puts out. The answer lies in using linear final power amps in the Class A,... Read more
Equipment
![Yaesu FTDX101D [ Preliminary Information ]](https://qrznow.com/wp-content/uploads/2018/08/FTDX101MP-265x168.jpg)
Yaesu FTDX101D [ Preliminary Information ]
Yaesu FTDX101D As you are aware there is the soon to be released Yaesu FTdx101D 100W SDR transceiver. I am also pleased to announce the big brother of... Read more
KP-1 Power Meter – KOHJINSHA – 5KW
KP-1 is a SWR and Power meter employing current transformer covereing the frequency range of 1.8MHz through 30MHz. ■ A large scale analogue cross mete... Read more
ITALAB HERON 1000 – Solid State Amplifier – 1KW
The HERON 1000 is a solid state amplifier for use in 1.8 MHz to 50 MHz bands. The RF section is Consisting of an amplification unit (HF 1000 P) capabl... Read more
Elecraft K2
The Elecraft K2 is a full-featured HF transceiver with the options you have come to expect from radios costing over twice as much. Two VFOs wit... Read more
News
Mysterious Radio Signal Discovered in Milky Way Center | What Is It!?
Ziteng (Andy) Wang is a PhD student at the University of Sydney. He recently discovered an unusual radio signal coming from the direction of the Milky... Read more
TRI BAND TRANSCEIVER – RS-UV3A
The HobbyPCB RS-UV3A radio module is a 144/220/450 MHz FM transceiver board. The RS-UV3A is a low cost transceiver solution for Packet Radio, repeater... Read more
ARRL Continues Its Efforts to Preserve Amateur Radio Secondary Use of the 3 GHz Band
ARRL President Rick Roderick, K5UR, in a written statement on the newly filed H.R.5378 before the US House Commerce Communications and Technology Subc... Read more
![Why Ham Radio [ ARRL Video ]](https://qrznow.com/wp-content/uploads/2021/10/hq720-1-265x168.jpg)
Why Ham Radio [ ARRL Video ]
Josh Nass, KI6NAZ, of @Ham Radio Crash Course talks about what ham radio is, and answers the question…. “Why Ham Radio?” Read more
High Speed Telegraphy 2021 in Montenegro
September 10-14, 2021, the 17th World Championship High Speed Telegraphy was held in Montenegro. The event was organized by MARP (Montenegrin Amateur... Read more
![ICOM IC-7610 [ First´s Video in Action ]](https://qrznow.com/wp-content/uploads/2017/03/ic-7610_n-265x168.jpg)
