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Antennas : 160M
  • 160M antenna for small lots or gardens - Small & practical DIY inverted U antenna. This design worked very well during the 2017 CQWW 160M SSB contest.
    [ Hits: 1697 | Votes: 5 | Rating: 4.2 ]
  • SJ2W 160 meter antennas - SJ2W Contest Station, antenna for the 160 meter is a 39m vertical. This 160m antenna consist of 29m of WIBE tower sections with an insulated base and 10m top tube.
    [ Hits: 518 | Votes: 0 | Rating: 0 ]
Antennas : Halo
  • 144 MHz Halo Antenna - This halo antenna was built to have an omnidirectional coverage while working in VHF contests.
    [ Hits: 3017 | Votes: 6 | Rating: 5 ]
DX Resources : Contest Calendars
  • DL2NBY Contest Calendar - This site provides dates and rules of nearly 400 Amateur Radio HF contests. Based on google calendar system, offer the possibilty to integrate calendar events in your google calendar too.
    [ Hits: 1736 | Votes: 5 | Rating: 6.4 ]
  • HF Digital Contest Calendar - Monthly Digital Contest Calendar, this site offer a list of scheduled ham radio digital modes contests.
    [ Hits: 1173 | Votes: 4 | Rating: 1.5 ]
DX Resources : Contest : Contest Stations
  • RD3A - This site is dedicated to the RD3A (ex RD3AF)participation in russian and international HF-contests, DX'ing, DX'peditions, to his work from primary and secondary contest locations, to antennas, equipment and software used by him.
    [ Hits: 506 | Votes: 0 | Rating: 0 ]
Ham Radio : Clubs : Contest Clubs
  • Swamp Fox Contest Group - We are a group of ham radio operators located in South Carolina. The main object of this group is focused on radiosport, which includes contesting, fellowship, and technical support.
    [ Hits: 272 | Votes: 3 | Rating: 10 ]
Ham Radio : Clubs : Europe : UK : Southern England
  • Christchurch Amateur Radio Society - This is the new website of Christchurch ARS - Club callsigns G0MUD, G7MUD and contest callsign G2C
    [ Hits: 252 | Votes: 0 | Rating: 0 ]
Ham Radio : Exams : Study Guides
  • The No-Nonsense Extra Class License Study Guide - The No-Nonsense Extra Class License Study Guide (for tests given between July 2016 and June 2020) This is the study guide you want if you want to pass the Extra Class exam
    [ Hits: 409 | Votes: 0 | Rating: 0 ]
Ham Radio : Personal Pages : USA
  • NJ2X.COM - Adventure in Amateur Radio - NJ2X is a licensed amateur radio operator (FCC Amateur Extra) who enjoys casting electromagnetic waves into the ether. NJ2X pursues many aspects of the hobby including chasing DX, participating in mini-DX expeditions, building equipment and antennas, and papering his shack walls with ARRL awards. NJ2X dedicates this amateur radio oriented site to helping others who also enjoy the greatest of scientific hobbies. The site is suitable for all readers - families, the young, and the young at heart.
    [ Hits: 297 | Votes: 2 | Rating: 10 ]
Radio Equipment : HF Amplifiers : Ameritron ALS-600
  • Ameritron ALS-600S review - ALS-600S review, an abbreviated version of this review first appeared in the March 2005 issue of QST. See QST for lab test results.
    [ Hits: 589 | Votes: 0 | Rating: 0 ]
Radio Equipment : Microphones : Heil PR-781
  • K6JRF - Mic Comparison - This Microphone comparison article summarizes the test results of two popular ham radio microphones the ElectroVoice RE27 and Heil PR781
    [ Hits: 508 | Votes: 0 | Rating: 0 ]
Software : Legacy Systems
  • Cabrillo to ADIF - This is a command-line or DOS program to convert a Cabrillo file to ADIF. The fundamental purpose is to take the output of a contest logging program (such as TRLog or CT) and prepare it for importing into a general-purpose logging program
    [ Hits: 2141 | Votes: 11 | Rating: 3.18 ]
Software : Log Analysis
  • CabStat - This spreadsheet is designed to perform a statistical analysis of the results of a competition among amateur dumps in the standard format Cabrillo.
    [ Hits: 654 | Votes: 2 | Rating: 10 ]
Technical Reference : Coax Cables and Connectors : Testing Coax Cables
  • The Coax Tester - This useful coax tester allows you to screw the PL-259 onto the tester to get a GO/NO GO status. When the LED lights up- you have a short circuit.
    [ Hits: 751 | Votes: 1 | Rating: 2 ]
Technical Reference : Filters
  • A home-built low-pass filter for 4m - This unit uses four capacitors, only two of which are variables, and a single tapped coil. It is built in a die-cast box, and has been tested up to 80W input power on 70MHz by G4CJZ
    [ Hits: 588 | Votes: 0 | Rating: 0 ]
Technical Reference : SWR Meters
  • WiFi SWR meter - An home made SWR meter for 2.4 GHz. A DIY SWR meter that allow precise measurements and calibration of any WiFi antenna. This is test equipment everyone who build wifi antennas should have in their shack. Article is in french and include some videos.
    [ Hits: 1699 | Votes: 10 | Rating: 4.9 ]
Technical Reference : Software Defined Radio : RTLSDR
  • RTLSDR.com - This Blog covers some of the latest developments and projects involving RTLSDR Dongles a cheap software defined radio that uses a DVB-T TV tuner dongle based on the RTL2832U chipset.
    [ Hits: 473 | Votes: 1 | Rating: 10 ]
Technical Reference : Test Equipment : Multimeter
  • Build a Test Meter - This article include a circuit that allows a cheap 0-1mA meter to be used as a micro-ammeter or a milli-voltmeter
    [ Hits: 257 | Votes: 0 | Rating: 0 ]
Technical Reference : Test Equipment : RF Probe
  • RF Probs and Watt meter - This RF probe can be used at High Frequency (HF) or Ultra High Frequency (UHF) on both 50 and 75 ohm coaxial cables.
    [ Hits: 604 | Votes: 1 | Rating: 10 ]

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