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Antennas : 160M
  • A Lowband Antenna that is Almost Free - The Shunt-fed Tower, an effective Low Band Antenna, uses your beam as a capacitive top-hat and only needs a simple feed network and a good ground system to work DX on 80M and 160M.
    [ Hits: 18744 | Votes: 4 | Rating: 7.75 ]
Antennas : 2M
  • Portable Yagi for 144MHz - Simple 7 element Yagi is ideal for portable operation. The elements can be removed and replaced in a few minutes. The 2.42 m boom will fit inside a car, the elements are made from 6mm solid aluminium rod.
    [ Hits: 14334 | Votes: 35 | Rating: 6.83 ]
Antennas : 40M : 40 meter Vertical Antennas
  • A 40m Vertical - This antenna is intended as a simple, inexpensive solution for the newcomer to experiment across the 40m band (7.0-7.2MHz) when only restricted space is available
    [ Hits: 10383 | Votes: 5 | Rating: 2.8 ]
Antennas : 80M
  • 80M Vertical antenna with capacitance hat - Simple wire antenna cheap to make, using readily available materials, Low angle radiation, with rejection of high angle signals Wide bandwidth, with resonance at the 80M DX window (3.790-3.800 MHz); and Maximum height is 40 feet
    [ Hits: 25084 | Votes: 23 | Rating: 7.05 ]
Antennas : Dipole
  • 20m mini loaded dipole - It is very simple to build and you can tune it in your shack room
    [ Hits: 16240 | Votes: 17 | Rating: 6 ]
Antennas : Feed Lines
  • Setting the SWR of Your Antenna - SWR (standing wave ratio), is a measurement of how efficiently your antenna system will radiate the power available from your radio. In simple terms, your radio would like to radiate all of its power, but can only do so if the other components cooperate
    [ Hits: 1253 | Votes: 0 | Rating: 0 ]
Antennas : Wire
  • NorCal Doublet Antenna - A simple antenna that can be erected very fast, only need one center support, and do not take up much storage room. Works from 40 to 10 meters band
    [ Hits: 2813 | Votes: 3 | Rating: 10 ]
Manufacturers : Antennas : HF : Vertical Antennas
  • K4TR Antennas - K4TR Manufacture and sell simple dipoles, half square 2 wire phased vertical arrays, end fed zepp antennas, G5RV antennas. 1:1 baluns
    [ Hits: 4424 | Votes: 8 | Rating: 7.88 ]
Radio Equipment : HF Transceivers : Icom IC-706
  • W8WWV Icom 706MKIIG simple accessories - Acc1 Breakout Box, Fused Power Cable with Accessory Tap, Microphone Breakout Box, CI-V Interface, Using the Auto Sound System for Receiver Audio
    [ Hits: 3703 | Votes: 10 | Rating: 7.9 ]
Radio Equipment : HF Transceivers : Yaesu FT-1000MP
  • FT-1K OptoCAT - The simple and safe RS232 CAT interface for Yaesu FT-1000MP, FT-1000MP Mark V and FT-1000MP Mark V Field rigs
    [ Hits: 1555 | Votes: 0 | Rating: 0 ]
Software : APRS
  • APRS-Beacon - The purpose of the APRS-Beacon is to provide simple APRS-compatible position beacons for up to three Objects. It is designed to 'stand alone' and does not monitor other traffic on the frequency. It can use a single-port TNC (in 'native' mode), a single- or dual-port TNC in Kiss mode or the AGW Packet Engine in order to transmit on up to four radio ports.(When running with AGWPE, APRS-Beacon will also work with Windows 2000)
    [ Hits: 3421 | Votes: 7 | Rating: 2.57 ]
Software : Logging
  • Hamlog - A simple quick and easy to use Amatuer Log Book for windows
    [ Hits: 2552 | Votes: 2 | Rating: 5.5 ]
Software : Packet
  • Packet Terminal Interface - Simple Windows based TNC interface program Designed for ARES operation, simple operator interface to connect and perform communication functions, control operator programs screens before operations Both receive and transmit screens Simple Windows based TNC interface program Designed for ARES operation Simple operator interface to connect and perform communication functions Control operator programs screens before operations Both receive and transmit screens
    [ Hits: 11984 | Votes: 24 | Rating: 4.08 ]
Software : RTTY
  • YG-PSK - Simple PSK31 and RTTY program based on the AE4JY PSK engine. Logging inlcudes 10-10 and VP number. Exports to ADIF and CSV.
    [ Hits: 2948 | Votes: 4 | Rating: 8 ]
Software : Spectrum analyzers
  • SpectraScope - SpectraScope is a simple Windows interface program allowing your computer to view up to two audio waveforms in either the time or frequency domain. The program is a Windows soft panel operating as a dual channel oscilloscope and spectrum analyzer. The useful frequency of operation is 20 to 10,000 Hz in the time domain and 20 to 20,000 Hz in the frequency domain. The program uses the computer sound card to capture the audio input.
    [ Hits: 10805 | Votes: 3 | Rating: 7 ]
Technical Reference : Filters
  • A low pass filter circuit - A simple 7 element, Chebyshev low pass filter, rolls of at 30MHz. Attenuation is better than -40dB at 60MHz, -65dB at 90MHz, -80dB at 120MHz.
    [ Hits: 5303 | Votes: 21 | Rating: 6.1 ]
Technical Reference : Homebrew Technical Reference : Programming Radio
  • Programming VHF/UHF Radios - Programming a new VHF/UHF radio usually proves to be a frustrating experience for most new amateur radio operators. A new radio must first be programmed for simplex and repeater operation before it can be used to communicate with local hams.
    [ Hits: 15777 | Votes: 29 | Rating: 6.45 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • A CW TX for 80 meters band - This simple circuit will give about 1.2 Watts of output when powered from a 13.8VDC supply.
    [ Hits: 1733 | Votes: 1 | Rating: 10 ]
Technical Reference : Sound Card Radio Interfacing
  • Kenwood to pc serial ports - Simple, low cost interface between Kenwood serial ports and contest logging programs by Bob Wolbert, K6XX
    [ Hits: 2267 | Votes: 0 | Rating: 0 ]

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