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Old February 14th 07, 10:52 AM posted to rec.radio.cb
Scott in Baltimore Scott in Baltimore is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 194
Default killing cars with high RF?

KE5MBX wrote:
Hi,
What's all this business I hear people talking about blasting people's
car stereos or killing cars altogether with high-power RF? I run 2m,
10m, and 11m in my jeep and I'd like to sort out the fact from the
legend and find out what kind of power I can use without risking
damage to my jeep or cars around me. At what power level is front-end
overload to a nearby radio likely? At what power level is damage
likely, and to what componets?

I am currently using only 50 watts on a 5/8 wave (2m), 25w on a 1/4
wave (10m), legal 4w on a 1/4 wave (11m)

Thanks,
Nelson KE5MBX


I've used a 667 on 11 in my Jeep. It did not like the intense voltage
swings caused by being on sideband. My headlights would get dim and
real bright, so I moved to a smaller box before I blew up my ECM.

I've had no problems with a few hundred watts on 11 meters, 50 watts
on 2 meters and 35 watts on 440. Antennas are left rear for 11 (and 10),
left front for 2 meters and right front for 440. Someday, I'll add
one on the right rear for 6 meters if I ever get a 6 meter radio.
Since I never listen to commercial FM (too many commercials), the
FM antenna is connected to the scanner.

I'll be populating 28.365 on February 23, 24 & 25. It seems the popular
meeting place on 10 meters will be 1 MHz higher then where we've all
spent so many years. (28.365/375/385/395)

On the 24th, I go to the paperwork upgrade session and go straight to the top.