dipole 20 40 m
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Antennas : 40M- 40m Wire Antennas Comparison
- On the field comparison among C-Pole antenna, an EFHW vertical antenna and an Inverter V dipole antenna. Test is done using two identical WSPRLite beacons that transmit with 200mW on the WSPR frequency and analyzing spotted results.
[ Hits: 172 | Votes: 1 | Rating: 3 ]
- Ham radio 40-meter dipole: your first antenna
- How to home made a custom home made dipole antenna for the 40 meters band, just 66 feet long. Enjoy the band openings during the evening and play morse code or digital modes on this magic band.
[ Hits: 198 | Votes: 0 | Rating: 0 ]
- Trapped Dipole Antenna for 20-30-40m
- An 20 30 40 meters trapped dipole antenna plan for sota and portable operations.
[ Hits: 267 | Votes: 1 | Rating: 10 ]
- Quad Band Inverted V Antenna
- An inverted V Dipole antenna for HF bands, working on 10 20 40 and 80 meters band. PDF Presentation
[ Hits: 383 | Votes: 1 | Rating: 7 ]
- 20 / 40 Meter Short Coil Loaded Dipole Antenna
- Experimenting a 20 40 meter short coil loaded dipole antenna with the goal to keep the total length under 40 feet so that the dipole can be mounted on two 20 foot fiberglass pole to make a 20/40 meter rotatable dipole.
[ Hits: 350 | Votes: 3 | Rating: 8.67 ]
- 6 Bands Fan Dipole Antenna
- Extension to an existing fan dipole originally modeled for 40 20 and 6 meters. This modification will add 80 15 and 10 meter bands.
[ Hits: 1298 | Votes: 2 | Rating: 5 ]
- Fan Dipole Antenna for 40 20 and 6 meters
- A fand dipole antenna home made for the 7,14,50 MHz.
This article descbribes how to homebrew the antenna, hot to setup and some SWR measurements.
[ Hits: 329 | Votes: 0 | Rating: 0 ]
- The Ramsay Dipole for 40 20 15 meters
- A multiband Fan Dipole that works on 40 20 15 meters band, making a folded dipole for 7 MHz band and additional element for the 21 MHz and 14 MHz
[ Hits: 402 | Votes: 4 | Rating: 8.75 ]
- Modeling an 80/40/20M Fan Dipole for DX
- An interesting presentation of a real multiband Fan Dipole antenna, optimized for better DX operation performances, considering the terrain, position, DX destination path and other influencing factors
[ Hits: 538 | Votes: 2 | Rating: 5.5 ]
- VE6LK Fan Dipole
- Multiband dipole antenna working on 80-40-20-15m, a 3 element antenna, 15m being a 3rd harmonic of 40.
[ Hits: 163 | Votes: 1 | Rating: 10 ]
- ZS6KMD 20-40m Multiband Dipole
- The dipole shown in this document is installed in an inverted Vee configuration, with two leg elements on each side held parallel to each other by 21cm spacers. The upper leg is for 40m and the lower leg for 20m. The spacers are made of 7mm plastic garden hose support for garden sprayers cut to 21cm.
[ Hits: 531 | Votes: 0 | Rating: 0 ]
- Homebrew an OCF Off-Center Fed Dipole Antenna
- This type of antenna is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It’s a dipole fed off center with a 4:1 balun at the offset feed point. The antenna shown covers 80, 40, 20 and 10 meters. The formula can also be used to adjust the overall length to cover more or fewer bands and the resulting overall length. 160-10m, 80-10m or 40-10 meters depending on your available space. Other bands will require a tuner.
[ Hits: 198 | Votes: 3 | Rating: 6.67 ]
- The M0CVO HW-42HP OCF Antenna
- A multi-band off centre fed dipole, designed to operate on all bands from 40m (7MHz) to 6m (50MHz). Author claims it will operate on 40, 30, 20, 17, 15, 12 and 10m without an ATU (SWR <3:1) plus 6m with an ATU.
[ Hits: 274 | Votes: 0 | Rating: 0 ]
- RF Trap Resonant Frequency
- RF traps for a lightweight 40/30/20/17/15m inverted V dipole antenna for SOTA purposes and how you can use a modern antenna analyser to find the resonant frequency of a HF trap.
[ Hits: 199 | Votes: 0 | Rating: 0 ]
- WebSDR in Andorra
- Listen to online WebSDR located in Andorra Europe. Four receivers on 60m, 20m, 40m, and 80m, connected to a dipole antenna direction East/West
[ Hits: 130 | Votes: 1 | Rating: 5 ]
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