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- Technical Reference > AI Ham Radio
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- Antique Radios > Antique Radio Reference
- Shopping and Services > Antique Radios
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- Technical Reference > Ham Radio Go Kits
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- Internet and Radio
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- Radio Equipment
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Repeater system in the New York metro area Service provided by W2LIE.NET -
Antenna design from ZS6BKW (G0GSF), similar to the G5RV, but it actually resonates on five bands It's only 90 ft long 27.51 m, with a 40 ft 12.2 m downlead -
Perfect ground vs. poor ground. What is the difference? How does the ground influence the DX-gain? -
Vintage and reproduction electronic parts specialist - antique radio dials and knobs, 1940-1970 era phonograph cartridges, needles, idler wheels. -
DX Cluster is an DX Cluster client for Android smartphones DX Cluster supports: Real time DX spots, Different band and mode filters, A country filter for spotter or the spots, Prefix or call sign alarms -
The off-center fed CAROLINA WINDOM provides outstanding performance on all bands. This includes all the WARC bands, 30, 17, and 12 meters. -
Review of the W5GI Multiband Mystery Antenna by July 2003 Issue of CQ Amateur Radio -
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Windows programming software for Icom and Yaesu amateur radios and scanners and receivers by RT Systems. Produce radio programming cables for Yaesu Icom Kenwood radios -
A half sloper antenna for 160 meter band Italian translation of a WD8DSB article appeared in a QST issue during 1998. This article presents a **Reduced-Size Half Sloper Antenna for 160 Meters**, designed for amateur radio operators with limited space. By utilizing a 40-foot tower or a tree, you can build an efficient antenna that slopes down, achieving a 2:1 SWR bandwidth of 120 kHz. This innovative design allows for effective communication on the "Top Band," making it ideal for winter DXing. -
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Mods and articles collected by mods.dk -
Amateur radio Services by the Federal Communications Commission. -
Source for high performance wire antennas, Current-type Baluns, Line Isolators, quality wire antenna parts and accessories. -
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SW receiver review's including the JRC NRD-545,WJ-8711A,AOR AR7030. Also ham transceiver reviews - misc. -
How connect a common PC headset with microphone to the Yaesu FY-817, FT-857, FT.897 in italian by I6IBE -
This project shows how to build a 50-ohm dummy load using non-inductive resistors, oil for heat dissipation, and a simple assembly process. It enables accurate transmitter tuning, testing, and power measurement across LF to UHF bands. The setup allows meter calibration by measuring peak voltage, applying diode drop correction, and calculating RMS voltage and power precisely. Parts are inexpensive and widely available. With proper assembly, this dummy load offers extended service life, accurate readings within 2%, and a reliable alternative to costly commercial wattmeters for amateur radio applications. -
This is the antenna for those who want to get on HF effectively, and haven't too much space or cash to throw around -
University of Texas Amateur Radio Club RF-Calculator. This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations -
Linking VHF and UHF radios and repeaters around the world using a secure Voice-Over-IP system, with no hackers! -
RadioReference.com, scanner frequency and radio communications reference source, with complete conventional frequency assignments, trunked radio system information, frequencies, and talkgroups, FCC License assignments and maps, 10-Code Lists, agency maps, files, downloads, links, and detailed agency information for most public safety, military, and local government activities. -
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The G3TPW Cobwebb antenna covers five bands, 14 - 28 mhz, including the WARC bands -
Solar Flux reports, Current Alerts and Warnings from NOAA, 27 day forcast from NOAA, charts reflecting the past 7 years Solar cycle summary charts from NOAA -
Multimode suite, feature logging, Internet interface to CXCluster, Smart multi-mode controller software, contest, APRS, and PSK31 via Sound card. Free and Commercial version available. -
Radio programming programs for YAESU and ICOM handheld transceivers. VX-7 Commander, VX-2 Commander, VX-5 Commander, VR-120 Commander, and IC-R2 Commander. All software on this site is designed to work on Windows 9x, ME, NT, 2K, and XP. -
A radio-telescope project observing the natural radio emissions of neutral hydrogen atoms throughout space. -
Old Time Radios ! a good resource to old time-radio amataurs -
Freeware antenna software that lets you see what the polar diagram of your rotatable beam actually looks like where it is operating. With PolarPlot you can measure the polar diagram of the antenna and check for abnormalities - compare plots taken before and after changes to the design or location - check the -3dB beamwidth - look at the front to back ratio - see the size and position of the sidelobes. -
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"ARES trains and organizes Hams to provide emergency communications to ""Served Agencies"" such as FEMA, National Weather Service, Red Cross, Salvation Army, Hospitals, and others. This site describes ARES goals and methods and structure." -
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A DIY discone antenna project made to improve receiveing performance of an RTLSDR receiver. -
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NW3Z yagi antenna designs for Dayton 2001 Includes yagis for 20 15 10 meters. -
G4NCE's illustrated vintage military wireless collection. Featuring British, Canadian and New Zealand Army eqpt, and Royal Air Force eqpt, from WW2 and the 1950's. -
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Tim Kirby IC-706 review of this small portable Icom transceiver -
A free to download and print, amateur radio station log sheet in a paper US letter format -
Collection of Amateur radio packages for the Raspberry Pi devices -
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Halo antenna for 4 meters band with dimensions, pictures and assembling instructions -
APRS/CE is a richly featured APRS software package for WindowsCE and especially the PocketPC, Maps are plentiful as it works with DOSAPRS, PocketAPRS (for the Palm) and MacAPRS maps offering an exceptionally compact APRS installation. -
The Adcock antenna has been used for a long time for RDF. It is basically an interferometer. -
"Sells high voltage film and electrolytic capacitors for antique tube radios. Carries 630 volt metal-film, metallized and mylar film capacitors as well as electrolytics. Also has ""capacitor"" tips for antique radio restorations."