9 band
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Antennas : 10M- J-Vertical for 10 meters
- A Slim Jim for 10 meters band
[ Hits: 7189 | Votes: 6 | Rating: 6 ]
- The All Copper X-Beam for 17 Meters
- WA2UGT X-beam antenna for 17 meters band
[ Hits: 5110 | Votes: 5 | Rating: 3 ]
- 13 elements Yagi antenna for 144 MHz
- DJ9BV yagi antenna for 2 meters band
[ Hits: 8888 | Votes: 36 | Rating: 6 ]
- Trapped dipole for 40-80-160 meters
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- 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 ]
- 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 ]
- 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 ]
- 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 ]
- 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 ]
- 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 ]
- 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 ]
- 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 ]
- 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 ]
- 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 ]
- Vertical antenna for 2 mt and 70cm
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- How to Build a Dual-Band Antenna for 2M/70cm presentation PDF file
[ Hits: 28701 | Votes: 49 | Rating: 6.26 ]
- 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 ]
- 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 ]
- 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 ]
- 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 ]
- 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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