rotary
19 links
- Rotary dipole for 12/17 meters
- A home brewed rotary dipole antenna for 12 and 17 meters band with pictures and construction details
[ Hits: 8272 | Votes: 5 | Rating: 8.4 ]
- Compact 20m Dipole Antenna
- Only 2x 10ft wide, performance similar to full-size dipole, covers whole band with SWR better than 1:1.2.
[ Hits: 953 | Votes: 0 | Rating: 0 ]
- 30m Half -Size Rotary Dipole
- A rotary dipole antenna for 30 meters band. Each arm is about 12.5 ft and is constructed from telescoping fibreglass flag/fishing poles and short lengths of aluminium tubing. Two short lengths of glass-fibre rod were used to insulate the arms from the supporting hardware.
[ Hits: 198 | Votes: 0 | Rating: 0 ]
- Rotary Dipole for 30 and 40 meters band
- Drawings pictures and notes on a rotary dipole antenna for 30 and 40 meters band
[ Hits: 10406 | Votes: 1 | Rating: 2 ]
- Rotatable 40M Dipole
- The Linear-Loaded "Crappie" 40M Rotatable Dipole
A Short 40 Antenna You Can Build for $50 or Less by VA7ST VE7ASK
[ Hits: 1929 | Votes: 0 | Rating: 0 ]
- A shortened 40 meter rotary dipole
- The antenna build into this project is made from 2 fishing poles on a fiberglass pole in the center.
[ Hits: 1215 | Votes: 4 | Rating: 4.75 ]
- Rotary Washing line antennas
- You can only consider yourself as being a real radio amateur if you view every object around you
as being a potential antenna. This article describe an antenna for 80 meetrs band
[ Hits: 899 | Votes: 0 | Rating: 0 ]
- 2 Stack Match Yagi Antenna
- Solves antenna matching problem with two phased antennas.
Stacked rotary beams are popular. However, connecting two 50 Ohm antennas together presents some problems.
[ Hits: 2062 | Votes: 7 | Rating: 2.15 ]
- Beverage switching box
- Sharing beverage antennas with this switch boxes is possible.
This article describes a 6-position remote antenna switch for Beverage antennas on 3 bands (160m, 80m, 40m). It allows selecting one of 6 antennas for each band without affecting other receivers. The system uses a control box with a rotary switch and a separate splitting box with bandpass filters for each band.
[ Hits: 5510 | Votes: 3 | Rating: 4.33 ]
- Rotary Dipole for 10m 15m 20m
- A simple beam antenna offering good performances on 3 bands by 9m2mso
[ Hits: 2308 | Votes: 5 | Rating: 4.8 ]
- Z-Match Antenna Tuner project
- This Z-Match is a link coupled all-band tuner. Two all band tank circuits cover 3-14mhz and 14-30mhz. The tank output links are selected with a very heavy duty SPDT rotary switch.
[ Hits: 1173 | Votes: 0 | Rating: 0 ]
- Rotary trapped-dipole for HF
- How to build a trapped rotary dipole with many photos ecc.
[ Hits: 5364 | Votes: 14 | Rating: 7.64 ]
- HA8DU Antenna Tuners
- HA8DU European manufacturer of quality amateur radio antenna tuners for HF Bands, from 10 meter to 160 meters band. Products includes manual and automatic antenna tuners, power handling till 3.5 KW. HA8DU produce even custom made variable capacitors and rotary switches.
[ Hits: 399 | Votes: 4 | Rating: 7.5 ]
- RippleTech Electronics
- Wide bandwidth Trapped Verticals and rotary dipoles, baluns, 40m/80m wire dipoles and accessories from Australia.
[ Hits: 1260 | Votes: 3 | Rating: 10 ]
- DXBeam
- Located in France, DXBeam designs and manufactures a range of monoband, dual band and triband antennas, rotary dipoles, Moxons and Yagis
[ Hits: 2721 | Votes: 11 | Rating: 2.64 ]
- CAL-AV Labs, Inc.
- Cal-av labs, inc. (formerly california avionics laboratories, inc.) manufactures electronic instruments and systems for research and industry. we specialize in radio communications and research/electronic test products. Amateur radio yagi antennas, rotary dipoles, baluns, morse keys.
[ Hits: 2129 | Votes: 0 | Rating: 0 ]
- Multi-Tech Industries, Inc.
- Manufacturing Precision Products Since 1969.
Rotary Switches, Strain Reliefs, Ground Fault Units
[ Hits: 420 | Votes: 1 | Rating: 9 ]
- ElectroSwitch
- Leading rotary switch manufacturer, Electroswitch Electronic Products offers a complete, vertically integrated, manufacturing and assembly facility dedicated to producing rotary switches
[ Hits: 613 | Votes: 0 | Rating: 0 ]
- Hamtech
- HAM-made engineering products supplies and produces coaxial relays, antenna switches, sequencers, roller inductors, variable capacitors, low noise preamplifiers, RF power rotary switches and coil bodies.
[ Hits: 192 | Votes: 0 | Rating: 0 ]
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