I added several new Sitemaster sweeps to the antenna sweep repository. I also scanned a bunch of factory hardcopy plots I had in my files for various Decibel and Sinclair dipole arrays (I don't have pre-install Sitemaster sweeps for these, they're all installed and on the air). Antennas that have been added include:
- Celwave 1152-2N, 440-450 MHz, 8 dBd SuperStationmaster fiberglass omni - Hustler "Spirit Series" HS10-12430, 10 dBd 1200-1300 MHz fiberglass omni - Decibel DB413, 8-bay dipole array for 450-470 MHz - Diamond X500HNA 2m/70cm dualband - Decibel S408-440-450 (factory sweep), special-order version of DB408 4-bay dual dipole array for 440-450 MHz. Three different antennas' plots are included. - Decibel S420-440-450 (factory sweep), special-order version of DB420 8-bay dual dipole array for 440-450 MHz. Four different antennas' plots are included. - Decibel S413-440-450 (factory sweep), special-order version of DB413 8-bay dipole array for 440-450 MHz. - Sinclair SRL310C8HD*2 (current model number SD318-HF2P2SNM, factory sweep), wideband 406-512 MHz 8-bay dipole array with 1/2-wavelength dipole to mast spacing (elliptical pattern). - Sinclair SRL2352 (current model number SD2352-SF2PASNM, factory sweep), wideband 138-174 MHz 4-bay dual-dipole array. PDF file (2.3 MB): http://broadsci.com/AntennaSweepsR3.pdf Not-so-pretty HTML: http://broadsci.com/AntennaSweepsR3.html If anyone is interested, I took some pictures of the Hustler Spirit 1.2 GHz antenna, figuring that someone might be interested in seeing how the Spirit series antennas are built. I also did some reverse-engineering of Decibel UHF dipole arrays to try to figure out why some seem to sweep better than others. The biggest issue I've found so far is with the power divider used on the 8-bay antennas which combines/splits the upper and lower halves of the antenna. More info to follow as time permits. --- Jeff WN3A
