QSO Today – Dr. Ulrich Rohde, N1UL

Dr. Ulrich Rohde, N1UL, is a pioneer in RF oscillator and receiver design. Over the last 40 years, N1UL has authored over 60 articles for QST and QEX magazines, in addition to books, academic papers, and articles. Dr. Rohde has made significant scientific contributions to his family business, the Munich based Rohde and Schwarz test equipment company, and to amateur radio manufacturers including Icom.  Ulrich, N1UL tells his ham radio story in this QSO Today.

Antenna

Portable Antenna Build by K6UDA

January 19, 2016 No comments

  K6UDA Radio, The elmer show with attitude. This time I’m building a portable end fed wire antenna that deploys in minutes and is pretty c... Read more

144 MHz Halo Antenna

December 23, 2015 No comments

Construction and Analysis of a Low Cost Omnidirectional Horizontally Polarized Antenna for 144 MHz by Dr. Carol F. Milazzo, KP4MD (posted 23 May 2012)... Read more

BWDS Base Broadband HF Folded Dipole Antenna

January 11, 2015 No comments

Barker & Williamson’s BWDS series of broadband folded dipole antennas, together with our MK114  or MK112 mast systems, gives rear tactical a... Read more

Ionopheric Propagation of Dipoles

May 20, 2021 No comments

Edwin Anderson, asks what is the proper orientation and angle for a dipole if he plans to use it for ionospheric propagation? Read more

SAL 30 Mark II Receiving HF antenna by Array Solutions

July 20, 2017 No comments

The new version of the well known Shared Apex Loop Array, the SAL-30 Mark II is here. The four vertical sides of the loops have been replaced by a sin... Read more

News

Use your Privileges Properly – Ham Radio

June 21, 2022 No comments

Due to some inquiry by Eric, KB0YDN, I decided to make this video discussing the incident of the Ham Firefighting Interference in Idaho Last year. Thi... Read more

ISM Packet Decoder Plugin For SDR Sharp – RTL 433

June 17, 2022 No comments

Here we take a look at the RTL433 Plugin for SDR Sharp, making it easy to decode ISM RF Packets. https://github.com/marco402/plugin-Rtl433-for-SdrShar... Read more

Increase in unidentified intruders

June 17, 2022 No comments

IARUMS newsletter IARU Monitoring System (IARUMS) Region 1 newsletter reports an increase in unidentified intruders in the amateur radio bands followi... Read more

I’m an Intern at ARRL Headquarters!

June 15, 2022 No comments

“I’m Jherica Goodgame, KI5HTA, and I’m a 2022 summer intern at ARRL HQ. Join me while I show you around some of my favorite parts of... Read more

Antenna on Sloping Ground – What happens?

June 13, 2022 No comments

“Various terrain and Antennas: You can make the slope work to your advantage. I know your next question already. Hang on. I’ll make a vide... Read more

Equipment

West Mountain Radio – Dayton Hamvention 2022

June 27, 2022 No comments

West Mountain Radio  2022 saw the return of the Dayton Hamvention and also celebrated the 70th anniversary of the world’s largest ham radio trad... Read more

SDRplay SDRconnect demo at Friedrichshafen 2022

June 25, 2022 No comments

This video shows the demo we showed at Ham Radio 2022, in Friedrichshafen, Germany. This demonstrates the core underlying technology behind what we’re... Read more

Building a Yaesu FT-891 remote control box

June 23, 2022 No comments

Dave, KZ9V stops by the shack, and share with us his memory keyer remote control box he built for the Yaesu FT-891 Read more

4 Way Remote Antenna Switch with WiFi

June 21, 2022 No comments

Remote Antenna Switch 2022 saw the return of the Dayton Hamvention and also celebrated the 70th anniversary of the world’s largest ham radio tra... Read more

Expert Linear 1.5-FA Solid State Amplifier [ Hamvention ]

June 13, 2022 No comments

Solid State Amplifier Powerful: 1.5 kW typ. (+/- 0.5dB) Very Light: about 10 kgs (about 22 lbs). Very Small: H 12, W 28, D 36 cm. (4.72″ X 11.2... Read more

Digital Modes

The Ultimate Portable Ham Radio Computer

November 04, 2021 No comments

Hello Operators. In this episode of the OH8STN ham radio, we are discussing replacing the raspberry pi field computer build, with the Microsoft Surfac... Read more

Get Started with FT8 – An Introduction for Beginners

November 04, 2021 No comments

FT8 is a mode in the WSJT-X software developed by Dr Joe Taylor K1JT. In this video I show how to get started and make contacts with FT8, introduction... Read more

WSJT-X Version 2.5.1 has been Released

October 28, 2021 No comments

The WSJT-X development team has announced the general availability release of WSJT-X version 2.5.1. This release mainly contains i... Read more

WSJT-X Errors? Try This Simple Fix

October 26, 2021 No comments

Does WSJT-X display errors when you transmit with your radio? Try this simple fix which has helped me get rid of those frustrating errors. Read more

WSJT-X version 2.5.1 released

October 22, 2021 No comments

WSJT-X version 2.5.1 releasedThe development team have announced the General Availability (GA) release of WSJT-X version 2.5.1. This release mainly co... Read more