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3401 links

17 Meter Coaxial Moxon Antenna - 17 m reduced size coaxial moxon rectangle, an exercise with an MFJ 259B plans by N0KHQ
[ Hits: 13048 | Votes: 18 | Rating: 5.66 ]

J-Pole Antennas for 2 Meters ^pop - This paper describes two types of 2 meter J-Pole antennas, one made of copper pipe and a roll-up J-pole made of TV twin lead. The figures give the details of the dimensions, components and construction.
[ Hits: 29275 | Votes: 8 | Rating: 7.37 ]

Some J-Poles That I Have Known - The varieties of twinlead J-Poles and some performance standards, L. B. Cebik, W4RNL
[ Hits: 4304 | Votes: 4 | Rating: 3.75 ]
Plumbers Delight J Pole Antenna Project - This article was reprinted to assist new hams at building their own 2 metre antenna. This design is very rugged and can be built for a few dollars with most of the parts available at your local Home Depot.
[ Hits: 5080 | Votes: 2 | Rating: 9 ]

Cebik Moxon Rectangles - The Moxon Rectangle is growing in popularity as a compact 2-element array that approaches a full-size 2-element in gain but with a far superior front-to-back ratio and a direct match for the standard 50-Ohm coaxial cable.
[ Hits: 3331 | Votes: 5 | Rating: 5 ]
Moxon equation - Designing moxon rectangles by equation and by model L. B. Cebik, W4RNL
[ Hits: 2304 | Votes: 2 | Rating: 5.5 ]

OH7SV Matti Hohtola Ham Projects - The most modern QRP transceiver in 2004,Direct Conversion HF Transceiver with DDS LO, 50 ohm to 200 ohm HF wide band transformers, Wilkinson splitter for RX measurements, Windom baluns 2001/2004, Ferrite rod antenna for 80 meter, Magnetic Loop Antenna for 80 m, Mascot Switched PSU 9320 modification to 8A peak current, 150W MOSFET linear amplifier for 80m, 80 m HF SSB/CW Transceiver
[ Hits: 20374 | Votes: 36 | Rating: 8.11 ]

PC to RTX interface - Schematics for IC-706, IC-718, IC-756PRO, TS-570, TS-870, and simple universal S.B. interface All three interfaces presented on this page employ galvanic isolation of the transceiver from PC computer. Audio paths are separated by transformers, optocouplers serve to separate the digital paths (PTT and RTTY keying).
[ Hits: 3782 | Votes: 2 | Rating: 7.5 ]

FT-1000MP Band Select Output and Amp Keying Interface - FT-1000MP Automatic Band Selection Interface Bob Wolbert, K6XX
[ Hits: 2475 | Votes: 3 | Rating: 7 ]

Yaesu FT-817 - Yaesu FT-817 Portable QRP MF/HF/VHF/UHF Transceiver, an assortment of technical information
[ Hits: 6186 | Votes: 3 | Rating: 9 ]

HRPT - NOAA HRPT - High Rate Picture Transmission, the main source of high quality data from polar orbiting meteorological satellites
[ Hits: 665 | Votes: 0 | Rating: 0 ]

J Pole calculator ^pop - Enter the operating frequency and calculate dimensions of your jpole antenna
[ Hits: 49474 | Votes: 184 | Rating: 6.36 ]
AC6LA MoxGen - MoxGen will show you the dimensions and generate an antenna model file for a 50 ohm Moxon Rectangle antenna, given the design frequency and wire size
[ Hits: 4856 | Votes: 14 | Rating: 6.71 ]

Spectrum Lab ^pop - DL4YHF's Audio Spectrum Analyser Spectrum Lab or Speclab started as a simple FFT program running under DOS a long time ago, but it is now a specialized audio analyzer, filter, frequency converter, hum filter, data logger and more. Can be used for MTHELL QRSS, DFCW, PSK, MSK, Castle
[ Hits: 47778 | Votes: 56 | Rating: 6.97 ]

Big Fat Tail Productions - PocketSat is a full-featured satellite tracking application for PalmOS and PocketPC devices. It is designed to be usable by both experienced satellite trackers as well as novices who are interested in knowing when they can simply look up and see satellites.
[ Hits: 6753 | Votes: 11 | Rating: 4.55 ]

Meteor and Colorgramme - FREE specialized software in the detection and registration of echoes radio products by meteors shower, falling star, at the time of their gone in atmospheric. They are destined to all possessors of a radio and a computer, interested parties by this simple technique of radioastronomy.
[ Hits: 1524 | Votes: 2 | Rating: 8.5 ]

50MHz frequency counter, V-meter - Circuit schematic PCB and photo documentation on building a 50 Mhz frequency counter
[ Hits: 6608 | Votes: 10 | Rating: 4.55 ]

Icom interface box - interface box for Icom rigs that includes a band output port and a CI-V�to�computer serial interface
[ Hits: 1980 | Votes: 2 | Rating: 3.5 ]
80m SSB & CW transceiver - The 80m SSB & CW transceiver design is based on an already proven concept used in ATLAS amateur transistorised transceivers from 70's
[ Hits: 10776 | Votes: 16 | Rating: 5.19 ]