Technical Articles:
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This is a 30-watt "sea level" beacon intended for the coastal path between
Northern and Southern California. It is located in CM97am, aimed at 140 true.
The tower is a small 48ft job located at a relative's home 2 miles across town
from me.
This should cover 125-155 true at the 3db beam width of the array, which consists of four 4-foot Yagis stacked vertically, and horizontally polarized. Total ERP is 3kw. Please forward any signal reports to the email address listed in the navigation bar.
The antenna pattern (measured on an
antenna range) and construction details
for the electronics follow below.
| Frequency | 1296.340 MHz Note: To correct for long-term drift, the last alignment was performed on 1/8/2008, and the frequency set to 1296.340 MHz. Measurement accuracy is +- 100 Hz. |
| Power Level | 30 watts |
| Antenna gain / Feedline | 21.9 dbi fed with 90 feet of Andrew LDF5 (7/8) |
| Antenna direction | 140 true |
| Current location | CM97am |
| Message content (repeats) | a 5 second carrier, then "de W6PQL/b CM97am" |
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click any thumbnail below for a larger picture |
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