[Amps] Mobile high power

[Will Matney]

Jim I don't know without calculating it, but I sure wouldn't want to be around it when it was powered up. I mean you think how far that three feet is, just about the top of either vehicle is where they have the bases of those antennas. I've seen some hams use crank up towers but these guys have them right over their heads.

Best,

Will

*********** REPLY SEPARATOR  ***********

On 10/27/05 at 3:22 PM Jim Tonne wrote:

>Wonder what the voltage at the end of that antenna was??
>- Jim Tonne
>
>
>----- Original Message ----- 
>From: "Will Matney" <craxd1 at verizon.net>
>To: <amps at contesting.com>
>Sent: Thursday, October 27, 2005 3:19 PM
>Subject: Re: [Amps] Mobile high power
>
>
>> Francis, and Jason,
>>
>> The ones myself and Hal were hinting at were running as high as 5-10 kW 
>> about 3 feet over their heads off of several 102" steel whip antennas,
>or 
>> a beam mounted on top of a van or surburban. Talks about crazy to do it, 
>> they are!
>>
>> Best,
>>
>> Will
>>
>> *********** REPLY SEPARATOR  ***********
>>
>> On 10/27/05 at 3:06 PM Carcia, Francis A         HS wrote:
>>
>>>Go to arrl site they have a safe distance calculator where you feed
>>>numbers
>>>in.
>>>I know on 10 meters at 70 feet over head and 1500 watts I'm just under
>the
>>>safety limit.
>>>
>>>-----Original Message-----
>>>From: Jason Buchanan [mailto:jsb at digistar.com]
>>>Sent: Thursday, October 27, 2005 2:59 PM
>>>To: craxd1 at verizon.net
>>>Cc: amps at contesting.com
>>>Subject: Re: [Amps] Mobile high power
>>>
>>>Will Matney wrote:
>>>
>>>>Joe,
>>>>
>>>>Lets say it takes a big, and good motor to run a big alternator, or
>>>several
>>>like some does. I've seen some that used turbochargers on them with up to
>>>six 200 amp alternators under the hood. Nobody needs that kind of power,
>>>and
>>>especially being that close to it over RF radiation.
>>>>
>>>>
>>>>
>>>
>>>Anyone have any spec sheets that show what the minimum safe distance for
>>>operating HF at a given power level?  Say, "X" feet at 1000 watts for a
>>>particular frequency?
>>>
>>>
>>>73 Jason N1SU
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>>
>>
>>
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