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09-13-2005, 07:59 PM
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#1 |
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Member (14 bit)
Join Date: Mar 1999
Location: Christmas, Florida
Posts: 10,661
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remote control
yesterday I descovered that I can turn off my computer with a remote control push button.
I was working on a small antenna for 146 mhz and was doing some testing on it, after a short time I set the antenna down and leaned it aganst the desk that houses my computer, after a short time I forgot it was setting there and pushed the mike button and then my computer instantly went down, it shut down so bad that I even had to remove the power from the power supply before I could turn it back on, luckly it fired up ok with no problems. so anyone that thinks computers are not affected by strong rf fields, think again, my transmitter was only putting out 70 watts . all I could think of was OH NO! |
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09-13-2005, 08:13 PM
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#2 |
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Served with Pride
Staff
Premium Member
Join Date: Apr 2003
Location: near the left coast of Michigan
Posts: 14,565
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In the Army we called that "pushing the pucker factor off the scale!" That loud pop you heard was your backside closing! hehehe
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09-14-2005, 12:21 AM
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#3 |
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Gremlin Overlord
Join Date: Apr 2003
Location: Australia
Posts: 2,382
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Only 70W??
 A 200W antenna can jam a GPS signal from horizon to horizon
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09-14-2005, 11:38 AM
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#4 |
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Techphile.
Join Date: Nov 2003
Location: San Francisco Bay
Posts: 5,959
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Probably hit a harmonic of something that works at 146mhz, 2x146mhz, 4x 146mhz etc...some of these computer circuits I would imagine operate at only a few milliwatts. I can see how something transmiting at 70 watts a meter or two away could wreak havoc on a computer.
Right Jagg...at the carrier frequency for civilian GPS receivers.
__________________
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09-14-2005, 08:15 PM
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#5 | |
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Gremlin Overlord
Join Date: Apr 2003
Location: Australia
Posts: 2,382
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Quote:
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09-14-2005, 10:02 PM
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#6 |
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Member (14 bit)
Join Date: Mar 1999
Location: Christmas, Florida
Posts: 10,661
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not really, the antenna was about 2 inches from the big window on the side of my case, my transmiters are about 3 ft from my computer desk and give no problems, but that was a real surprise to see my system go off like the power went out.
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09-15-2005, 05:40 AM
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#7 |
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Gremlin Overlord
Join Date: Apr 2003
Location: Australia
Posts: 2,382
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Yup... would freak one out. I wouldn't have even thought of it either
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