Database updates for 105 uW +/- 6% (-10dBm)

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w2gnn
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Last seen: 2 months 2 weeks ago
Joined: 2010/01/18 - 15:47
Database updates for 105 uW +/- 6% (-10dBm)

The sunspot situation for the past week or so, has been unfavorable for these low powers. I've been transmitting continuously since 5/10 with 105 uW, with a few excursions to high power, (1mW and 50 mW) with no spots at the lower power. I'll resume when the Solar flux rises to 75 or so.

As usual see: http://www.cliftonlaboratories.com/w7zoi_designed_ad8307_power_meter.htm for the detailed calibration report of the power meter used in making these measurements.

This meter in conjunction with a couple of attenuators is hard to beat. You don't even require the meter movement or meter circuitry. I use the calibration constants for each frequency range I'm in. Cost is under $50 with the most expensive part being the AD8307 log amp at ~$10. Jack Smith of Clifton Labs charged me $50 for a 23 page report and calibration constants and graphs. What a terrific deal!

Gary, w2gnn

These spots were done with 105uW +/_6%, (-10dBm).
2010-05-11 11:14 W2GNN 10.140213 -23 0 FN20qh 0.001 W3HH EL89 1427 215
2010-05-10 19:54 W2GNN 10.140169 -19 0 FN20qh 0.001 W3CSW FM19kd 250 240
2010-05-10 19:50 W2GNN 10.140169 -23 0 FN20qh 0.001 W3CSW FM19kd 250 240
2010-05-10 19:28 W2GNN 10.140169 -23 0 FN20qh 0.001 W3CSW FM19kd 250 240
2010-05-10 19:14 W2GNN 10.140167 -23 0 FN20qh 0.001 W3CSW FM19kd 250 240
2010-05-10 19:14 W2GNN 10.140167 -27 0 FN20qh 0.001 W1BW FN42hl 363 47
2010-05-10 19:06 W2GNN 10.140167 -24 -1 FN20qh 0.001 W3CSW FM19kd 250 240
2010-05-10 19:04 W2GNN 10.140169 -24 0 FN20qh 0.001 W3CSW FM19kd 250 240