8 point
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Antennas : Delta loop- 160m Inverted Delta Loop
- This 160 meter Delta Loop antenna is made of Hard drawn copper wire AWG 10, the two upper side are 148.5 foot each base wire is 240.9 foot, the feed point at 30.69 foot to one corner, feed with 450 Homs balanced line to an antenna tuner on the ground, then with 50 homs coax to the shack.
[ Hits: 112 | 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: 194 | Votes: 3 | Rating: 6.67 ]
- Unearthing VHF Contest Secrets: An In-Depth Analysis
- In this article, authors delve into the inner workings of the IARU R1 VHF contest, the world's largest 2m contest. While activity levels are declining, the top performers consistently maintain their results. Authors explore the physical constraints of achieving higher point totals and speculate on various factors like improved technical capabilities, increased interference, and evolving station setups. It is a fascinating journey into the contest's dynamics, leaving room for intriguing speculations about its future.
[ Hits: 69 | Votes: 2 | Rating: 10 ]
- Airplane scattering
- Operating on Airplane scattering. Scattering of radio signals by airplanes. An introduction to operating ariplane scattering, using aircraft to redirect RF that would otherwise be lost in space. Antenna Pointing, Doppler Shift/Digital Modes, using digital modes to operate airscatter.
[ Hits: 153 | Votes: 0 | Rating: 0 ]
- Yaesu FT-818 Review
- An owner point of view of the Yaesu FT-818 QRP transceiver capable to work HF VHF UHF in CW, AM, LSB, USB, FM, PACKET.
[ Hits: 34 | Votes: 1 | Rating: 9 ]
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