daiwa af 606k

The Guanella 1:4 balun - A cost effective current-mode 1:4 balun can be constructed from two lengths of coax, two ferrite rods, some electrical tape, cable ties, a length of PVC water-pipe and some connectors. This form of 1:4 current-mode balun is named after G. Guanella.

Off-Center Feed - The Windom Antenna - The Windom antenna was widely used in the 1930s and is named after the amateur that wrote a comprehensive article about it

STØRY - Sudan DXpedition March 2003 - On March 20, 2003, we brought Sudan, one of the most needed and top-ranking DXCC entities, on the air with the call sign STØRY (Sierra Tango Zero Radio Yankee). After some 48,000 QSOs, STØRY became hiSTORY on March 31, 2003.

Mono County CQP Expeditions - In 2004, 2005 & 2006, after many years of very successful multi operator county expeditions, Jim (W6KC) did single operator expeditions to Mono County.

Contest University - After a year of preparation, 150 students and 11 professors participated in 10 hours of intense Contesting instruction covering some 22 topics, with over 400 pages of text

ACTIVE Beacons <30 Mhz - List of all ACTIVE Amateur Radio Beacons on frequencies below 30 Mhz.

n9adg.com - Amateur radio, Technology, Towers, Land, Wilderness, real estate, Visalia DX Convention Report #1 Flexradio Antennas Dxpedition, Elecraft introduces K3, here are pictures of the radio from the outside and inside from the Visalia DX Convention

The University of British Columbia Amateur Radio Society - The UBC Amateur Radio Society is a non-profit, student organization governed by UBC's Alma Mater Society. Our mission is to divulge Amateur Radio as a hobby to students, faculty, staff and our community.

The Toronto Marine Ham Radio Club - Whilst Amateur Radio has a great history of invention and service to both business and the general public as a whole, this website is dedicated to the sailing fraternity with the primary objective of providing information and training facility as it applies to “Safety at Sea through Wireless Communication”.

Kingston Amateur Radio Club - Kingston, Ontario, Canada A RAC Affiliated Club

Arizona Repeater Association - ARRL affiliated organization

ThunderBird Amateur Radio Club - ARRL Affiliated Club Phoenix, Arizona

Rhode Island area scanner - Woonsocket Rhode Island area scanner traffic, a mix of Police, Fire, Ambulance and even some aircraft

Listen to Radio Meteors live - Echos of USAF (Formally NAVSPASUR) radar signals reflected off of meteor trails received at Roswell, New Mexico

Web and ATV Camera Frauenstaffel - Webcameras, Frauenstaffel - Waidhofen - Austria, ATV-Webcam on a 150feet high radiotower.

Aircraft Spruce and Specialty - Offer Aluminium tubes for antenna parts

RadioCraft Amateur Radio Products - SWR WATT meter manufacturer

Phase Noise. - This is perhaps the most important parameter in many oscillators and it deserves an in-depth discussion on what it is, how it affects a system and how it can be minimised in an oscillator design.

N1EU's Elecraft K3 Operating Notes - Setup and performance measurements of Elecraft K3

Getting to know the Elecraft KX3 - N4KGL review of the Elecraft KX3 transceiver based on first experiences in portable operations.

ZLP Electronics - Yaesu Icom Kenwood CAT Interfaces. Isolated audio-DATA interfaces for ALL afsk DATA modes inc psk31 rtty sstv etc.

PlanePlotter - PlanePlotter receives and decodes live digital position reports from aircraft and plots them on a chart. Using PlanePlotter, you can see a radar-like display of all those aircraft around you that are transmitting the appropriate digital messages including ACARS, ADS-B and HFDL.

ACARS Analyser - Designed to work with all the major ACARS data capturing programs and enable users to get a complete picture of all the aircraft in there database, where they go and what they have done in the past.

Qucs - Quite Universal Circuit Simulator Priority listing - Qucs, briefly for Quite Universal Circuit Simulator, is an integrated circuit simulator which means you are able to setup a circuit with a graphical user interface (GUI) and simulate the large-signal, small-signal and noise behaviour of the circuit. After that simulation has finished you can view the simulation results on a presentation page or window. Run on Linux.

Safe,effective grounding - Practical applications for end-fed antenna transformers and safe, effective grounding