20 meter408 links - and 4 categories
Antennas : 10M
- Multiband Cubical Quads
- EI7BA Multiband Cubical Quads projects, includes two elements quad antennas for 10 12 15 17 20 meters band. Performance considerations, detailed pictures and construction notes.
[ Hits: 7502 | Votes: 5 | Rating: 9.40 ]
- 160 Meter Antennas at W8JI
- 160-meter vertically polarized transmitting antennas center around this 200-foot tower
[ Hits: 3766 | Votes: 1 | Rating: 10.00 ]
- W6ZO Delta Loop
- W6ZO Portable Delta Loop for 20 meters
[ Hits: 13178 | Votes: 6 | Rating: 7.33 ]
- W5GI Mystery Antenna
- W5GI Mystery Antenna is a multi-band wire antenna that performs exceptionally well even though it confounds antenna modeling software.
This antenna covers 80 to 6 meters with low feed point impedance and will work with most radios, with or without an antenna tuner. It is approximately 100 feet long, can handle the legal limit, and is easy and inexpensive to build. It is similar to a G5RV but a much better performer especially on 20 meters.
[ Hits: 127154 | Votes: 109 | Rating: 7.93 ]
- Shorty Forty Antenna
- Short dipole antenna for 40 meter ham band.
Can be put up in the space required for a 20 meter dipole.
[ Hits: 11675 | Votes: 7 | Rating: 7.85 ]
- Trapped dipole for 40-80-160 meters
- Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe by W8NX
[ Hits: 88961 | Votes: 102 | Rating: 6.05 ]
- 80/75 Meter 4-Square Array
- This array has been in use since 1989. The SWR from 3.5 to 3.9 is below 1.5:1. The F/R of the array is 20dB average and with some signals even better.
[ Hits: 2227 | Votes: 1 | Rating: 10.00 ]
- 20m QRP Dipole
- Instructions to build a portable dipole for 20 meters
[ Hits: 15934 | Votes: 6 | Rating: 9.17 ]
- 40 meter shortened dipole - M0MCX
- Interesting little project with a couple of loading coils by M0MCX
[ Hits: 13515 | Votes: 7 | Rating: 7.43 ]
- End fed halfwave antenna and matching unit
- One is an EFHWA for 20-40 meters, and the other is a matching unit for the antenna by n0lx
[ Hits: 9742 | Votes: 5 | Rating: 5.40 ]
- G5RV vs. Ground Plane on 80M
- Comparison tests by WF7T of a G5RV antenna vs a GP antenna on 80 meters band
[ Hits: 1388 | Votes: 3 | Rating: 7.00 ]
- A two dollar helical hf portable antenna
- Here is an easily transportable vertical antenna for 20 meters collapsible to 4 feet that costs about $2.00 to make.
This was created as a fun project to demonstrate how to enjoy operating HF in the field with a home-made portable antenna without spending a ton of money.
Bev AH6NF (YL) made this antenna, tuned and ready to operate in less than one hour
[ Hits: 20883 | Votes: 13 | Rating: 7.62 ]
- 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: 9376 | Votes: 10 | Rating: 7.11 ]
- HF Mobile Antenna HB9ABX
- Most efficient hf mobile antenna, This mobile antenna is designed for all HF bands from 10 to 80 meters an proved to be very efficient in my travels in South America on 15 and 20m for contacts to Europe and within South America.
[ Hits: 5063 | Votes: 9 | Rating: 7.79 ]
- 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: 5067 | Votes: 5 | Rating: 6.00 ]
- A tri-band 2 element portable Yagi
- HF Wire Yagi antenna with notes and eznec file on original article of a Portable 3-Band Yagi antenna for 10-15-20 meter band made with wire elements. Include link the original to QST article.
[ Hits: 14400 | Votes: 4 | Rating: 7.00 ]
- HS0ZEE Antenna Tower Installation
- Pictures and history of HS0ZEE 37 meters antenna tower installation with a cubical quad on the top of this tall radio mast.
[ Hits: 2348 | Votes: 6 | Rating: 8.67 ]
- QRP 20m Antenna Tuner Unit
- A QRP antenna tuner for 20 meters band
[ Hits: 10308 | Votes: 4 | Rating: 7.75 ]
- ZeroFive Antennas
- Vertical antennas for all HF bands, expecially 80 40 20 meters bands
[ Hits: 6664 | Votes: 39 | Rating: 9.45 ]
- Using the Heath SB-200 Linear on Six Meters
- Improvements to Using the Heath SB-200 Linear on Six Meters by Ron Klimas, WZ1V
[ Hits: 2588 | Votes: 5 | Rating: 4.20 ]
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