9 band

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9 band

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Antennas : 10M Antennas : 17M Antennas : 2M Antennas : 40M : 40 meter Dipole Antennas
  • Trapped dipole for 40-80-160 meters  pop - Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe by W8NX
    [ Hits: 96883 | Votes: 119 | Rating: 6.24 ]
Antennas : 6M
  • Loop Antenna for 50 MHz - A magnetic loop antenna using a 28\" bicycle rim for six meter band
    [ Hits: 1709 | Votes: 6 | Rating: 3.83 ]
Antennas : 70cm
  • Bazooka dipole for 70 cm band - Here is a very simple 70cms dipole from Harald PD2HFE, which uses a single piece of RG-213 coaxial cable 34 cms in length.
    [ Hits: 16544 | Votes: 30 | Rating: 6.67 ]
Antennas : Bazooka
  • The Broadband Double-Bazooka - The Broadband Double-Bazooka Antenna- How Broad Is It? Adapted from Technical Correspondence, QST, September 1976, the increasing interest in using the coaxial dipole via W2DU
    [ Hits: 5205 | Votes: 2 | Rating: 6.5 ]
Antennas : Dipole
  • The Monoband HF dipole antenna - If you are looking for an easy antenna for your favorite band, you can't go wrong with an halfwavelenght dipole, all you need is 3 insulators and some wire
    [ Hits: 3479 | Votes: 4 | Rating: 8.75 ]
Antennas : G5RV
  • G5RV Antenna Homebrew - Homebrew G5RV a simple multiband antenna. This article shows detailed pictures of a G5RV home made antenna, including antenna size and dimensions by 9M2ZAK
    [ Hits: 1584 | Votes: 4 | Rating: 7.25 ]
Antennas : Log Periodic
  • A 5 band log periodic dipole array - Modified version of the Telerana antenna which was orginially featured in the July 1979 issue of QST. The array is suspended within a framework made of fiberglass poles emanating from a central hub with the ends tied together with light weight rope around the perimeter. 10-15-20-30-40 meter band coverage
    [ Hits: 9999 | Votes: 12 | Rating: 6.59 ]
Antennas : Multiband
  • LU9DPD Windom dipole - A multiband windom dipole antenna for 80 40 20 10 meters, feeded with a home made 4:1 balun, in spanish.
    [ Hits: 5341 | Votes: 5 | Rating: 6 ]
Antennas : Traps
  • Coaxial Traps for multiband antennas - A new perspective on the analysis and design of this popular antenna element. By Karl-Otto Muller, DG1MFT
    [ Hits: 14629 | Votes: 8 | Rating: 5 ]
Antennas : Tuners
  • Link Coupled Tuner - Legal Limit Link Coupled Balanced Tuner,for the amateur ham radio HF bands. This Tuner uses plug-in Coils sets for 40, 80, & 160 meters
    [ Hits: 3908 | Votes: 2 | Rating: 7 ]
Antennas : VHF UHF Technical Reference : Arduino
  • HamShield for Arduino - HamShield is a powerful VHF UHF transceiver that lets your Arduino talk to far away people using ham radio bands
    [ Hits: 1083 | Votes: 2 | Rating: 4 ]
Technical Reference : Filters
  • A diode-switched band-pass filter - High speed silicn diodes work well as RF switches. This article describes how to use diodes for selecting two or more filters ARRL QST article by W1FB
    [ Hits: 2301 | Votes: 3 | Rating: 4.67 ]
  • Band filters by PA9M - Band filters for PA6Z made by PA9M, designed by W3NQN.
    [ Hits: 476 | Votes: 1 | Rating: 9 ]
Technical Reference : HF Radios
  • Hombrewing an HF Transceiver - This page will describe the construction of a multi band SSB transceiver with all its components Band Pass Filter, Oscillator/Modulator unit, RX/TX Mixer TX Amp I.F. Amplifier AGC VFO Driver amplifier Receive audio amplifier Final amplifier Low pass filter Digital display and VFO stabiliser
    [ Hits: 4365 | Votes: 6 | Rating: 8.33 ]
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 : Radio Frequency Interference : BPL
  • Broadband news : Canadian BPL - Hydro-Québec joins efforts to provide high-speed internet service via power-lines
    [ Hits: 461 | Votes: 0 | Rating: 0 ]

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