hand books
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Antique Radios : Repair and Restoration
- Glowbugs Times
- Homebrew Tube Projects, Vacuum Tube Data, Articles From Old Handbooks
[ Hits: 517 | Votes: 4 | Rating: 9.25 ]
- Propagation on 630 Meters and 2200 Meters
- This is a theoretical look at propagation on 630-Meters and 2200-Meters using ray tracing software. It expands on the brief discussion in the ARRL Handbooks.
The Earth's magnetic field affects 630-Meter and 2200-Meter band propagation. Lower ionization reduces absorption, aiding low-frequency propagation. Differences exist between bands, limited daytime sky-wave propagation. Sunrise/sunset show promise, yet mechanisms are unclear. Ducting possible at night in specific conditions. Negative ions enhance propagation. Inefficient antennas and high man-made noise are anticipated. Groundwave propagation is significant on 2200-Meters.
[ Hits: 32 | Votes: 1 | Rating: 10 ]
- W4QCF manuals
- Operating and Service manuals, electronic publications, QSTS, Handbooks,
[ Hits: 1343 | Votes: 2 | Rating: 9 ]
- ScannerWorld.com
- Radio Scanners Uniden Bearcat, Antennas, CB_Radios, Ni-Cad Batteries, Frequency Books, Accessories, Power Supplies and Cords, FM Two Way Radios, and other Related Merchandise
[ Hits: 5166 | Votes: 2 | Rating: 7.5 ]
- Lux-Log
- Ham logging software capable of handling up to 30,000+ log-books using one database and one image copy, and many more features by Norbert Oberweis - LX1NO / KM6RY
[ Hits: 3228 | Votes: 35 | Rating: 7.37 ]
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