Responding to comments and recent videos here on Youtube. Is there a big threat to amatuer radio operators fourth amendment rights? Are we opening outselve sup to “Warrantless Searched”? Well, its complicated, but I will try to walk through it.
Antenna
Measuring Propagation Attenuation Using a Quadcopter by N6GN
These tests show that the signal strength of a local station can be many tens of decibels weaker than from a DX station. For the last several years I... Read more
ACOM HF Log-periodic antennas
ACOM, Bulgaria manufactures a range of 8, 10 and 12 element HF log-periodic antennas. Their main features are: designed and produced to give top perf... Read more
![SteppIR DB42 Setup by JA5MHD [ Video ]](https://qrznow.com/wp-content/uploads/2015/03/11038403_10204139844031513_3998216779955717336_n-265x168.jpg)
SteppIR DB42 Setup by JA5MHD [ Video ]
SteppIR DB42 http://blogs.yahoo.co.jp/ja5mhd Read more
Antenna Circular Polarization
“Space communication has forced the use of Circular polarization. The fundamental advantage of circular polarization is that all reflections cha... Read more
Effective Indoor Antennas
Peirre, KM4WSJ, lives in Florida and is often victim to powerful lightning and thunder storms and is forced to disconnect his antenna. His question to... Read more
Review
Radioditty GD-73 DMR HT – Programming and Using
PALM SIZE DMR: Compatible with MOTOTRBO, the GD-73A features lightweight and mini size that can easily fit your pocket. The clear LCD screen and compa... Read more
![FT8 and the 6m band [ Club Log ]](https://qrznow.com/wp-content/uploads/2021/03/clublog-2006-2021-1-265x168.png)
FT8 and the 6m band [ Club Log ]
by Michael Wells “DXers have adopted FT8 to catch openings on the 6m band in the last year in even greater numbers than on HF. With the often sp... Read more
![“ Volt-Ohm Meters ” – The Doctor Will See You Now! [ ARRL Podcast ]](https://qrznow.com/wp-content/uploads/2018/09/Digital-Multimeter-with-Battery-Testing-Feature-Amp-Volt-Ohm-Meter-Manual-ranging-Multitester-2f2adcba-5294-49ff-9920-ed2d5bf9f095_600-265x168.jpg)
“ Volt-Ohm Meters ” – The Doctor Will See You Now! [ ARRL Podcast ]
Volt-Ohm Meters These meters have been around for decades and remain one of most useful pieces of test equipment you can own. “Volt-Ohm Meters” is t... Read more
Review of CW Morse Paddles with weighted base
“CW Morse (cwmorse.us) makes a variety of inexpensive, 3D-printed Morse code keys. They’ve now added paddles for iambic keyers to their li... Read more
Equipment
SO-239 antenna ballmount for mobile Station
SO-239 connection on top of the ball mount for the antenna and for the PL-259 connection on the inside of the vehicle. The plates are 3 inches in... Read more
21st Century Transceiver Design: The K4 High Performance Direct Sampling SDR
The Elecraft K4 High Performance Direct Sampling SDR Read more
Radio Incident Command Kit by N1RFD
What is my definition of a Communications Go-Kit? A Communications Go-Kit (or Radio-Ready-Kit) is made up of a portable “Amateur radio” st... Read more
Kenwood TS-890 – Instruction Manual
The Kenwood® TS-890S transceiver made its world debut at the 2018 Hamvention® in Xenia, Ohio. It features full down conversion receiver with h... Read more
XPA125 Tuner – Any good?
Today I take the XPA125 Tuner and put it through its paces with a 9:1 EFRW Random Wire Antenna 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
