On the night of Jan 19 2008 at 05:00 UTC I heard signals bouncing off of the moon.
This was an experiment using the HF Active Auroral Research Program (HAARP) 3.6 MW transmitter system in Alaska,...
On the night of Jan 19 2008 at 05:00 UTC I heard signals bouncing off of the moon.
This was an experiment using the HF Active Auroral Research Program (HAARP) 3.6 MW transmitter system in Alaska, which can aim a lot of RF into the sky. At 05:00 they transmitted on 6.7925 MHz. The transmitter is on for 2 seconds and off for 3 seconds and repeated this cycle for an hour. The signal from Earth to Moon and back to Earth takes 2.7 seconds. So after the transmitter shuts off, if the signal is strong enough, we can hear the signal bouncing off of the moon. The signal strength was from 0 to about S3. The Alaska transmitter is heard at 30 over S9 at times.
I was able to hear signals bouncing off of the moon using my Kenwood TS-2000 with a 40 meter dipole up about 25 feet. Not bad DX.
Their calculation show that the power delivered at the terminals of a resonant 40 meter dipole antenna is 2.5 X 10-13 Watts or about -96 dBm. This is equivalent to about 4.4 microvolts across 70 ohms.
That is 2.5 billion watts. They had to re-aim the beam every 3 minutes at the moon.
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i stopped trying to influence anyone, all i can do is leading by example, i worked most continents with a frigging groundplane and 100W, just by choosing the right band and waiting for the right moment, using CW.
people ignoring rules, laws and sportsmanship exist everywhere, not only in DL.
Perhaps this is one reason, why "ham spirit" is in danger of becoming a term of the past.
i referred to those "anyones" who could not work the world in HF w/o their kilowatts.
with regard to VHF, use sattelites for god sake.
moonbouncing is as efficient as dragging a caravan with a ferrari. It spams the frequency on half a globe for a "one-to-many" communication and is only useful for dictators to spread their propaganda.
1500 watts from amplifier to the 29.24 dBd antenna. This figure does not account for feed line loss. I have no idea what Dave's feedline length is, or if he is using 1 5/8s or not.
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Sam has de computer default voice!!!
relax.
i consider everything beyond that - beyond fairplay.
Whomever needs more than 100W to get somewhere
is walking on the wrong path. IMO.
people ignoring rules, laws and sportsmanship exist everywhere, not only in DL.
Perhaps this is one reason, why "ham spirit" is in danger of becoming a term of the past.
ANYONE can work the world on HF.
Try working another continent on any band above 2 meters with 100 watts and a vertical.
'nuff said.
with regard to VHF, use sattelites for god sake.
moonbouncing is as efficient as dragging a caravan with a ferrari. It spams the frequency on half a globe for a
"one-to-many" communication and is only useful for dictators to spread their propaganda.
1,259,189 watts.
1500 watts from amplifier to the 29.24 dBd antenna. This figure does not account for feed line loss. I have no idea what Dave's feedline length is, or if he is using 1 5/8s or not.
Still a million and a quater watts from 1500.