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Antennas : 10M
A 5 elements Vee log-yagi for 10m
- 5 elements "vee" log-yagi for 10m band- boom lenght : 4mt. Gain : over 10 dBd , f/b =over 40 db (deep null) f/b= min 20dB for different polarization signals
Dual Band Vertical On Autopilot
- A good 20 & 40 meter dual band vertical using a novel tuning method that provides automatic band switching.
Bazooka vs Dipole
- Discussion, will a double bazooka outperform a dipole, enough to notice a difference on 40m.
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
Homebrew Hex Wire Beam Antenna
- Hombrewinf the hex beam antenna by W6OT
6 meter HexBeam antenna
- SP3FHI hexbeam antenna built with bamboo sticks
W4TI - Installing the Hexbeam
- HX-B5i five band HexBeam installation by w4ti
Hex-Beam Video
- A rotating HexBeam antenna video from F5NZY in Paris France
A Horn Antenna for 2.4 GHz.
- This Antenna is not really practical for AO-40 reception, but horn antennas have a number of qualities useful in microwave antenna testing and noise figure measurements.
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
Loop Antenna Design
- Full-wave loops are very popular antennas. They are especially useful on 80 and 40 meters where they perform well at modest heights
Vertical plane antennas' beaming comparision
- Animated quad and yagi comparison. You can see antennas' characteristics behavior in a vertical plane with changing of the height.
408 Mhz Quagi Antenna
- PDF file on building the SARA 408 Mhz Quagi antenna
Mini-Beam Geometry Basics
- There is a natural progression of the geometry of
the "mini-beams" deriving from the basic yagi, which in itself owes a lot to the common dipole. By Dick Stevens, N1RCT
Why a Beam Antenna
- Some basic antenna information for the newcomer
Installation of a Utility Pole
- There are many ways to support an amateur radio antenna. Installatio of a utility pole will provide an antenna height of approximately 13 meters (40 feet) and will require no guy wires.
VHF / UHF Direct Connect Beams Lengths
- Here are some lengths and spacings for various direct connect beams.
A Quadruple Helix for AO-40
- A homebrew project of a quadruple helix antenna system based on G3RUH 16 turn helix antenna for 2.4 GHz.
104-GT-011 Roy
Priority listing
- 11 mts Radio,information about my QTH Corsica Island and links to radio equipment suppliers
Meridian Fire/Lauderdale County MS EMS/Fire Stream
- This stream covers the whole County of Lauderdale Mississippi including the City of Meridian's Fire Dept.
VBI-360 Beam Indicator
- VBI-360 Beam Indicator - New Display Units, Repairs & Map Upgrades, SteppIR, Green Heron, 90 Degree Offset, Global Beam Display, CGARS, Hy Gain, Roto-Brake
A Little Mobile Information
- Alan Applegate (K0BG) article on mobile oprtations
Kitmondo: used test equipment
- Kitmondo is an online marketplace for used test equipment and measurement
equipment including analyzers, oscilloscopes and generators equipment.
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.
5 Watt 40 Meters transmitter
- This circuit is unique in that it uses a power mosfet as a final rather than a conventional bipolar transistor.

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