----- Original Message -----
From: "R.Measures" <r@somis.org>
To: <g3rzp@g3rzp.wanadoo.co.uk>
Cc: <amps@contesting.com>
Sent: Tuesday, November 01, 2005 4:01 AM
Subject: Re: [Amps] Mobile high power
>
> On Oct 31, 2005, at 6:08 PM, Peter Chadwick wrote:
>
>> How do you keep within the ICNIRP limits with high power? They suggest
>> a maximum field strength at HF where a piece of ungrounded metal could
>> be touched of 30volts/metre maximum. 60 volts/meter maximum if there's
>> no ungrounded metal around. I suspect even a 100 watt mobile exceeds
>> that in the near field at HF. The physiological effects worked on the
>> basis of the 6 minute integration period probably aren't an issue,
>> especially with the duty cycle of SSB or CW, but the induced voltage
>> from the antenna near field giving the capability of RF burns to
>> someone touching a bit of metal is another matter.
>
> Would not this act as a deterrent to car jackers?
Up here in Maine most vehicles and some operators are fitted
simple mechanical devices that use small amounts of Pb to protect
the equipment and operator. While proven safe and effective in
well trained hands, I would very much like to see some serious
testing of the rf method. Shields up!
Mike k1ern
>>
>> 73
>>
>> Peter W6/G3RZP
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>>
>>
>
> Richard L. Measures, AG6K, 805.386.3734. www.somis.org
>
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