dual

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dual

191 links - and 5 categories

Antennas : 40M
  • 40-80 Half-Extended Double Zepp Antenna - A dual-bander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole. This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting
    [ Hits: 11391 | Votes: 9 | Rating: 4.44 ]
Antennas : 40M : 40 meter Loop Antennas
  • Dual Loop 80 and 40 Meter  pop - A dual loop antenna, ZZ Wave Net HF Wire Antenna Project by VE6VIS. The antenna is basically a full wave 80 meter loop on top and a 40 meter loop on the bottom all supported from a 64 foot center support
    [ Hits: 25267 | Votes: 16 | Rating: 5.38 ]
Antennas : 6M : 6 meter J-Pole Antenna
  • Dual Band J Pole - Dual band J pole operational over the entire 6Mtr band (50 - 54MHz) and the entire 2Mtr band (144 - 148MHz), slightly favouring the upper half of both bands by VK6YSF
    [ Hits: 4092 | Votes: 7 | Rating: 5.71 ]
Antennas : J-Pole
  • Copper Cactus J pole 2 metter 70 Cm dualband - Homebrew a j-pole 2mt and 70 cm antenna project. Make it cheap. This article includes homebrewing instructions, parts lists, tools needed and printable documentation.
    [ Hits: 10348 | Votes: 29 | Rating: 6.35 ]
  • 144-430 portable j-pole antenna  pop - A portable dual band j-pole antenna
    [ Hits: 45550 | Votes: 33 | Rating: 5.49 ]
Antennas : Mobile
  • Home Brew VHF UHF dual band antenna  pop - Contructing precedure and tune up of a dual band mobile antenna. This antenna is just a 1/4 wavelength resonator for both UHF and VHF band. It provides no GAIN as compared to other multi-section design.
    [ Hits: 36840 | Votes: 38 | Rating: 4.36 ]
Antennas : VHF UHF Ham Radio : Clubs : North America : USA : Oregon
  • Radio Operators Association of Dallas - The Radio Operators Association of Dallas (ROADS) Club exist to promote interest in amateur radio communication and experimentation, fostering of education in electronic communications as it applies to amateur radio, development of individual efficiency, cooperation among members. and furtherance of the public welfare.
    [ Hits: 521 | Votes: 2 | Rating: 10 ]
Manufacturers : Antennas : HF : Yagi Antennas
  • DXBeam - Located in France, DXBeam designs and manufactures a range of monoband, dual band and triband antennas, rotary dipoles, Moxons and Yagis
    [ Hits: 2717 | Votes: 11 | Rating: 2.64 ]
Radio Equipment : HF Transceivers : Kenwood TS-850
  • Two Kenwood TS850 modifications - Here are two simple modifications / repairs for the Kenwood TS850 HF transceiver, dual receiver mod, and battery pack replacement
    [ Hits: 2947 | Votes: 3 | Rating: 5.67 ]
Radio Equipment : HF Transceivers : Yaesu FT-1000MP
  • FT-1000D Why DX in Stereo - Yaesu's classic, top of the line HF transceiver for contesters and DXers is probably the only ham dual-receiver radio that does true diversity reception
    [ Hits: 1169 | Votes: 2 | Rating: 5.5 ]
Shortwave Radio : SWL Resources
  • NDB Weblog - Many NDB radio enthusiasts publish their reception logs on the web. A completely separate system designed for individual listeners to make their own logs and obtain statistics on NDBs, DGPS and now Navtex Stations they have received. Log listings can be exported in a multitude of formats and then emailed to the NDB List
    [ Hits: 1454 | Votes: 3 | Rating: 9.67 ]
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 : Contesting
  • SCR-Log - Scr-log freeware logging program for mac, windows, linux and dos. designed for school, club, and individual class stations to use during school club roundup.
    [ Hits: 1523 | Votes: 5 | Rating: 10 ]
Software : DSP
  • glfer - glfer is a program for reception and transmission of QRSS/DFCW signals. It is composed of two main parts: the spectrogram window, where you can see the spectrum of the received signal vs. time the transmission functions, to emit cw characters at a slow but precisely controlled speed, using the QRSS (slow CW) or DFCW (Dual Frequency CW) modes
    [ Hits: 1821 | Votes: 0 | Rating: 0 ]
Software : Radio Programming
  • Pro Key Set - This small program helps you to edit the CW memories of your Icom 756Pro, 756Pro2, 746 or 746Pro rig. On startup it reads the current memory contents and displays it. You can edit the text and store the memories individually or all 4 together
    [ Hits: 836 | Votes: 1 | Rating: 10 ]
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 : Radio Frequency Interference : Noise Reduction
  • QRM and noise reduction - You will find on these pages my experiences and results on antennas and local/non-local QRM/noise reduction. Using a broadband vertical active magnetic loop and a home made / designed broadband amplifier. Two vertical magnetic Alford loops are used in an array. Analog and Digital Signal Processing and a dual phase coherent Software Defined Radio (SDR) are used. By PA0SIM
    [ Hits: 5085 | Votes: 6 | Rating: 7 ]
Technical Reference : Software Defined Radio
  • Dual phase Software Defined Radio - Dual phase coherent Software Defined Radio using two K2 Elecraft receivers and programming in Matlab/Simulink.
    [ Hits: 982 | Votes: 3 | Rating: 7.67 ]

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