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871 links and 5 categories about design on dxzone.com

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Antennas
  • HF Aerial Design - A novel approach to aerial evaluation with diagrams and graphs by G3CWI
    [ Hits: 2951 | Votes: 10 | Rating: 7.00 ]
Antennas : J-Pole
  • J-Pole antenna design  pop - Complete guide to build Jpole antennas with online dimensions calculator.
    [ Hits: 47657 | Votes: 72 | Rating: 5.98 ]
Antennas : Loop
  • A Hanging Rectangular Loop Antenna - A rotatable hanging loop antenna that has been specifically designed for hanging in a tree. Horizontally polarized with a broad azimuth pattern and gain of nearly 3dB over a simple horizontal dipole!
    [ Hits: 1719 | Votes: 1 | Rating: 2.00 ]
Antennas : Quad
  • Cubical Quad Antenna Design  updated  pop - By N6VNG, can be used to determine the element lengths and the gamma match values for different frequencies, includes link to excel files with formulas to dimension your quad antenna.
    [ Hits: 28246 | Votes: 80 | Rating: 5.80 ]
Antennas : Sloper
  • Antenna switch for sloper antennas - An easy to build antenna switch for long wire antennas, expecially designed for sloper antennas
    [ Hits: 12973 | Votes: 19 | Rating: 5.38 ]
Antennas : VHF UHF
  • 1270Mhz Yagi Antenna - Build your own antenna for the 23cm band ( 1250Mhz - 1280Mc ) using some aluminium and this simple design.
    [ Hits: 11088 | Votes: 15 | Rating: 6.21 ]
DX Resources : Callsigns
  • Luxembourg Callbook - Designed and copyrighted by Norbert Oberweis, LX1NO/KM6RY
    [ Hits: 472 | Votes: 7 | Rating: 1.71 ]
Manufacturers : Test Equipment
  • Radio Adventures - Design and manufacturing of electronic components, kits, and accessories for the amateur and commercial communications. CMOS Keyers, W1AW receivers, PC borads kits
    [ Hits: 2837 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Towers and Accessories
  • Nally radio towers - Radio towers with designs made specificaly for Amateur Radio operators, incorporating mounting plates for most common rotators with in tower structure allowing for safety in the use,and tilt over preventing the need for climbing towers during regular maintance
    [ Hits: 14070 | Votes: 11 | Rating: 7.00 ]
Operating Modes : QRP
  • VA3CRA's QRP Page - This page is dedicated to sparking interest in QRP operation with topics such as projects, antenna designs, equipment, awards, and software.
    [ Hits: 1897 | Votes: 1 | Rating: 1.00 ]
Shopping and Services : Internet services
  • QTH.COM Priority listing - QTH.COM by KA9FOX offer classified swap ads for amateur radio and web design along to evoluted web hosting
    [ Hits: 203 | Votes: 1 | Rating: 8.00 ]
Software : Antenna analysis
  • Yagi Designer - Program that produces antenna radiation patterns and graphs for SWR, forward gain, and F/B ratios
    [ Hits: 20811 | Votes: 55 | Rating: 6.27 ]
  • ASAP - A Free general purpose antenna analysis user-oriented software program for numerical electromagnetic antenna design, antenna modeling and antenna analysis.
    [ Hits: 13345 | Votes: 4 | Rating: 5.25 ]
Software : Audio Recorders
  • Scanrec Scanner Recorder - Scanner Recorder (Scanrec) is a free audio recorder that is primarily designed to record speech. It has a VOX control that allows the user to save disk space when no sound is present in the signal. Since FM communications has such an effective squelch, the recorder works best with FM. HF ham bands and World Band radio have such a poor signal to noise ratio that the VOX gate on Scanrec might not be very easy to set.
    [ Hits: 10979 | Votes: 36 | Rating: 7.11 ]
  • Vox Recorder  pop - Vox Recorder is a Windows utility wich allows recording sound from an audio source only when an audio signal is present; its main purpose is to avoid the recording of the silence eventually present at the input. Vox Recorder has been designed in particular for radio-scanner hobbists.
    [ Hits: 37262 | Votes: 116 | Rating: 6.57 ]
Software : Awards tracking
  • MobileLog Amateur Radio Mobile Logging - The MobileLog program is a specialty logging program designed for mobile amateur radio operators. It has been designed to allow quick entry of important information regarding QSOs. The software is primarily concerned with the logging of U.S. county information, which may be used to help work toward awards such as the USA-CA award for working all counties in the U.S.A. The data from this program may be imported into your general logging software. This sofware exports data in the ADIF (Amateur Data Interchange Format) and CSV (comma-seprated variable)
    [ Hits: 1065 | Votes: 3 | Rating: 4.33 ]
Software : DSP
  • Stream - Stream is a software that implements MFSK16 and MFSK8 modes designed by me and Murray Greenman ZL1BPU. It also offers a series of experimental modes based on FEC, interleaving and several modulation techniques (PSK, QPSK, MSK, &c.).
    [ Hits: 1587 | Votes: 3 | Rating: 6.33 ]
Software : PSK31
  • WinPSKse - WinPSKse is a logical outgrowth of WinPSK as designed and written by AE4JY. The look and feel is intentionally similar, but some significant changes have been made, not the least of which is the ability toreceive two PSK31 signals simultaneously.
    [ Hits: 4443 | Votes: 20 | Rating: 6.71 ]
Software : Packet
  • TTYlink - TTYLink is a freeware client chat telnet application designed for packet radio and available for Windows NT 4.0 and Windows 95/98.
    [ Hits: 1898 | Votes: 12 | Rating: 7.17 ]
Software : Satellite tracking
  • Satsoft - Satellite antenna design and systems engineering software for windows
    [ Hits: 2970 | Votes: 5 | Rating: 6.20 ]
Software : Utilities
  • KM5KG network designer - Windows98 Program for RF Design
    [ Hits: 1832 | Votes: 4 | Rating: 7.25 ]
  • PLL2 - 2nd Order phase locked loop design for passive and active circuits. Bode plot, step response, design parameters
    [ Hits: 1353 | Votes: 3 | Rating: 5.33 ]
Technical Reference : Amplifiers Technical Reference : Power Meter
  • A 50 MHz MicroWattMeter - A design for a simple microwattmeter. Input range -75 dBm to + 5 dBm. Frequency range 2 to 50 MHz
    [ Hits: 3403 | Votes: 3 | Rating: 2.67 ]
Technical Reference : Radio Frequency Interference
  • Toroid Pro - Designed by microwave engineers to provide filter, radio,microwave and Ham radio engineers with all relevant information of an inductor and core at his or her finger tips
    [ Hits: 5818 | Votes: 11 | Rating: 3.82 ]
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