40m antenna107 links - and 2 categories
Antennas : 10M
- Shortened dipole for 10 & 40m bands
- A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.
[ Hits: 3902 | Votes: 1 | Rating: 1 ]
- Invisible DX antenna for the low bands
- Article by DK5WL describes a multi-band DX antenna for the 160m-40m amateur radio bands with
low visibility but great performance for long distance communication.
[ Hits: 6438 | Votes: 1 | Rating: 1 ]
- 40M Reversible Moxon
- Moxon antenna project, each side is 51 feet long and the turned in sections are each 7.7ft long. This antenna performed similar to a full size two element yagi for 40 meters.
[ Hits: 3938 | Votes: 2 | Rating: 9 ]
- 40M Twin Half-Square Array
- 40 meters elevated vertical antenna array at VA7ST
[ Hits: 3299 | Votes: 2 | Rating: 5.5 ]
- 40m & 80m portable wire antenna
- G8ODE antenna project, where the 40m & Short 80m antenna was deployed as a sloping wire antenna using the 10M fibre glass fishing pole and a hook on the house's gutter-board
[ Hits: 3080 | Votes: 5 | Rating: 2.4 ]
- Trapped dipole for 80 and 40 m
- This article explores a theoretical model for the losses of an 80m / 40m trapped inverted V dipole antenna system using a bootstrap coax trap, but does not examine the pattern of the antenna.
[ Hits: 2529 | Votes: 0 | Rating: 0 ]
- 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: 1783 | Votes: 0 | Rating: 0 ]
- 40m broadband vertical antenna
- A loopy loop loaded vertical antenna operating range 7.0 to 7.3 MHz by S. C. Chuck Smith, WA7RAI
[ Hits: 6160 | Votes: 15 | Rating: 7.52 ]
- Phased 40M Wire Verticals
- Experiments with phased wire vertical antennas on 40 meters at VA7ST
[ Hits: 2675 | Votes: 2 | Rating: 7.5 ]
- Vertical Antenna for 7 MHz
- DF9CY experience on a vertical antenna for 40 meter band
[ Hits: 1379 | Votes: 4 | Rating: 3.75 ]
- Yagi for 80 and 40 meters
- Design plan of an array of a two element yagis for 80m and a 3 element 40m antenna sharing a single 12 meters long boom by EA5DY
[ Hits: 1420 | Votes: 4 | Rating: 6.5 ]
- Rotatable Dipole for 40m-6m
- This article describes a simple, inexpensive, dipole antenna that will rival the performance of a ten-meter beam.
[ Hits: 4686 | Votes: 8 | Rating: 8.25 ]
- Wire Dipole for 7.05 MHz
- Inverted Vee antenna for 40m with simulation data by DF9CY
[ Hits: 1403 | Votes: 0 | Rating: 0 ]
- Capacitive Antennas
- HB9MTN Capacitive antennas for 40m, 30m AND 20m
[ Hits: 1241 | Votes: 2 | Rating: 8 ]
- End Fed Half Wave Antenna Coupler
- A 40m through 17m Mini End Fed Half Wave Antenna Coupler by Steve Yates - AA5TB
[ Hits: 4558 | Votes: 4 | Rating: 8.5 ]
- QRO End Fed Half Wave Antenna Coupler
- A 40m through 20m QRO End Fed Half Wave Antenna Coupler by Steve Yates - AA5TB
[ Hits: 3057 | Votes: 3 | Rating: 10 ]
- Noise Reduction on 40m
- DF9CY implementation of W1HIS suggestion of inserting a common mode choke into a 40m antennas feed-line.
[ Hits: 1222 | Votes: 0 | Rating: 0 ]
- Vertical antenna for Vacation
- Vertical Vacation Antenna for 80, 40 and 20 Meter-Band, by Herbert OE3BMB
This antenna is a full size λ/4 for 20m and 40m band, and a shortened λ/4 for the 80m band.
Generally on the 40m band the SWR is under 1,6. In 80m and 20m band at the resonant frequency the SWR is about 1,1.
[ Hits: 4857 | Votes: 4 | Rating: 8 ]
- G8JNJ Broadband HF Vertical Antenna
- G8JNJ Broadband HF Vertical Antenna - Requires no tuner - great results from 40m to 10m plus 80m & 6m with reduced performance
[ Hits: 4417 | Votes: 4 | Rating: 7 ]
- Moonraker 4 Antenna manual
- English manual of the AV-140Moonraker 4 antenna
[ Hits: 2676 | Votes: 19 | Rating: 6.06 ]
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