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512 links - and 2 categories

5 Element LFA Yagi for 6 meters band - A Loop Fed Array Yagi antenna for 50 MHz featuring 11 dBi gain and 23 f/b ratio. In this excellent page the author even includes a detailed drawing in DWG format, with element lenght and spacing measures, in a separa file a full list of material list needed to build this yagi antenna including source and price, the EZnec file for this antenna plan, and a lot of pictures of this LFA Yagi for 50 Mhz. A ten page PDF file containing all infos, is also available to download.
[ Hits: 1179 | Votes: 7 | Rating: 8.57 ]

Coil-Shortened Dipole Antenna Calculator - Build an effective dipole antenna that needs much less space by adding two loading coils. This online calculator tells you how.
[ Hits: 1249 | Votes: 9 | Rating: 6.34 ]

W8JK Modified Array - A Compact and efficient multiband beam antenna based on a Modified W8JK Array by K5LJ
[ Hits: 959 | Votes: 3 | Rating: 7 ]
Classic Multiband Dipole - The Classic Multiband Dipole Antenna QST article. The open-wire feed line dipole antenna is easy to install and offers surprising performance on several bands. You can install it in almost any configuration; it does not have to be strung in the traditional horizontal flat top
[ Hits: 2175 | Votes: 3 | Rating: 10 ]

YAGI Antenna for 24 Mhz - A 2 elements yagi beam for 12 meters band with liear load
[ Hits: 421 | Votes: 1 | Rating: 2 ]

JT65A - weak-signal digital mode - A very exaustive and complete article on JT65A and JT65-HF operating mode, including software download links, installation notes, how to make JT65A QSO and videos to correctly work with weak signals by NW7US
[ Hits: 670 | Votes: 2 | Rating: 10 ]

Icom PW-1 Setup Notes - Icom PW1 Linear Amplifier, setup and configuration PDF file
[ Hits: 438 | Votes: 1 | Rating: 7 ]

Icom IC R7100 Manual - Icom R7100 manual from official icom web site
[ Hits: 307 | Votes: 1 | Rating: 1 ]
Icom IC R7100 Service Manual - PDF File of the IC R7100 communication receiver service manual
[ Hits: 760 | Votes: 4 | Rating: 4.75 ]

Baofeng UV-5R models - UV-5R models comparison chart
[ Hits: 9612 | Votes: 9 | Rating: 5.67 ]

GAL-ANA - GAL-ANA is an Antenna-Analyzing Tool software, based on NEC2/MININEC3m engines currently available in demo mode for download
[ Hits: 786 | Votes: 3 | Rating: 3 ]

DesignSpark PCB - DesignSpark PCB is the world's most accessible electronics design software, specially designed for Rapid Prototyping and turning your circuit ideas into testable boards faster. Easy to learn and easy to use, DesignSpark PCB is free and can you can download DesignSpark from this site.
[ Hits: 526 | Votes: 0 | Rating: 0 ]

N1MM Logger+ - N1MM Logger+ is one of the most popular contest logging programs for Windows and it is the evolution of the N1MM classic. N1MM Logger plus is fully free to download and to use software featuring automatic CW generation, rotator and radio control, suport for So2R, cluster support, winkeyer interface, import export cabrillo and adif formats and many more features. Download N1MM from the official web site with latest callsign files and updated.
[ Hits: 14211 | Votes: 12 | Rating: 7.37 ]

Jack Audio ^pop - Take the audio output of one piece of software and send it to another. JackAudio is a virtual audio software cable that run on Windows Linux and MacOS and if Free to download and to use.
[ Hits: 42664 | Votes: 61 | Rating: 7.56 ]

ADIF Prefix Calculator - This software loads WPX type ADIF files with the tag and calculates the different callsign prefixes. The software will load and capture the totals for big files. ADIF files must have the .adi file extension.
[ Hits: 284 | Votes: 0 | Rating: 0 ]

GBCAT - GBCAT is free PC software for controlling amateur radio devices through a COM/USB port or through a TCP/IP network, with the ability to transfer a 2-way audio signal over a TCP/IP network supporting Yaesu FT-857 FT-817 FT-897, Icom IC-706MKIIG, Kenwood TS-2000 and TS-590S by 9A2GB.
[ Hits: 2528 | Votes: 44 | Rating: 9.14 ]

Impact of SWR on Power Amplifiers - Article appeared on 10/05 issue of QEX about the impact of load SWR on the efficiency of Power Amplifiers, PDF File by K9LA
[ Hits: 415 | Votes: 0 | Rating: 0 ]

RTTY Modem for Arduino - A project for a simple RTTY decoder based on Arduino UNO R3. Includes the RTTY modem source code available for download along to schematics pictures and references.
[ Hits: 1378 | Votes: 6 | Rating: 6.83 ]

A 150 Watt Dummy Load - Home made dummy load by W2EB
[ Hits: 960 | Votes: 1 | Rating: 9 ]

Ham Radio Go-Kit - Radio Incident Command Kit project is described in this article loaded with many pictures and go-kit composition.
[ Hits: 4448 | Votes: 10 | Rating: 7.5 ]