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Antennas : 10M
Dismantable Yagi for the bands 10-17m
- 10-12-15-17 meter band yagi antenna
2-Element-Yagis for HF
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- 2-Element parasitic Yagis for the Shortwave-Bands 10-12-15-17-20-30m. The antennas are feeded with the DK7ZB-match. A quarter-wave choke of coax is grounded at the socket.
Shorty Forty Antenna
- Short dipole antenna for 40 meter ham band.
Can be put up in the space required for a 20 meter dipole.
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.
Bazooka antennas compared to dipoles
- Article and comparison between bazooka antennas and dipole, taking care of effieciency and bandwidth
The Broadband Double-Bazooka
- The Broadband Double-Bazooka Antenna — How Broad Is It? 18-1. (Adapted from Technical Correspon- dence, QST, September 1976) The increasing interest in using the coaxial dipole.
Build a bazooka dipole
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- Build Your Own Bazooka Dipole: A VHF/UHF vertical dipole made from coax
Bazooka vs Dipole
- Discussion, will a double bazooka outperform a dipole, enough to notice a difference on 40m.
Dipole Height
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- How High should my Dipole be?
Dipole Antennas and the effect of height above ground
Antenna Transmission Line Power Splitters
- Several ways of splitting power to feed two like (50 ohm terminal impedance) antennas.
Installing dipole insulators
- Installing your dipole end insulators
The full-wave loop antenna
- These omnidirectional antennas offer Horizontal polarization, and about 2.1 dbd of gain. They are much quieter than a dipole or a vertical, have a broader bandwidth and will usually out perform a dipole antenna.
Picture of a multiband dipole
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- Pictures of a multiband dipole, build with simple PVC T and standard electrical wire
LU9DPD Windom dipole
- A multiband windom dipole antenna for 80 40 20 10 meters, feeded with a home made 4:1 balun, in spanish.
WB9KMO Ham Radio Video Library
- The Ham Radio Video Library is a continuous loop of several ham radio-related video clips. The current clips are Monroe School ISS Contact (15 minutes), DARPA Grand Challenge - Ghostrider (5 minutes), DARPA Grand Challenge - Stanley Wins! (5 minutes), JOTA - Jamboree On The Air (15 minutes) and SBARC Tesla Presentation (50 minutes) - times are approximate
WSJT
- WSJT is a computer program for VHF/UHF communication dedicated to EME. Support FSK441 for meteor scatter, JT65: for EME and extreme troposcatter, JT6M: for meteor scatter (optimized for 50 MHz)EME Echo: for measuring your own echoes from the Moon, CW: for EME QSOs using 15 WPM Morse code
WBCQ The Planet
- This summer, WBCQ is running The Voice of the M/S Katie, live radio broadcasts originating from our radio ship the M/S Katie in Boston, Massachusetts. WBCQ broadcasts 50,000 watts on each of its four international shortwave transmitters on 5.110, 7.415, 9.330 and 18.910 MHz
WZ1V's VHF modifications page
- A collection of modifications to the AM6154/55 linear amplifier
N1IBC Eimac 4CX1500B HF Power Amplifier
- 1500 Watt HF power amplifier
JA3MHV Amplifiers
- 4CX1000A x2 AB1GG Power Amplifier, 21MHz 15W and 3.5/7MHz 20W SSB Transceiver by JA3MHV, 50/144/435MHz 80W Linear Amplifier
K0GKD Solid State amplifier
- High Power Solid State 600 Watts Output Motorola MRF 150 FETs
N4IP HF and 6 Meters amplifier
- A solid state amplifier for HF and 6 meters band by N4IP
4CX1500
- This is a 4CX1500B grid driven amplifier that is built like a tank. The unit is considerably over designed as can be seen in the pictures documenting the construction
VE6FI 4-1000a amplifier
- 15-160 meters HF power amplifier
KD5FZX 23 CM GS-15B PA
- GS23B / 4CX1600U 1KW Power amplifier for 23cm
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15 dipole
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