@compuserve.com]
Sent: Monday, April 23, 2001 7:36 AM
To: David Instone; ieee pstc list
Subject: Re: 2. 4 GHz cordless telephone, question of general interest
A lump of coal will heat up in a microwave oven. No water needed. It is the
bulk resistivity of an object which allows circulating currents to generate
the
opaque plastic lid. Potentials induced on the remnant metal strips were
high enough to arc over...
--
From: umbdenst...@sensormatic.com
To: emc-p...@ieee.org
Subject: RE: 2. 4 GHz cordless telephone, question of general interest
Date: Mon, Apr 23, 2001, 9:49 AM
I once warmed up some
@compuserve.com
To: David Instone david_inst...@uk.xyratex.com, ieee pstc list
emc-p...@ieee.org
Subject: Re: 2. 4 GHz cordless telephone, question of general interest
Date: Mon, Apr 23, 2001, 9:35 AM
A lump of coal will heat up in a microwave oven. No water needed. It is the
bulk resistivity of an object
: Re: 2. 4 GHz cordless telephone, question of general
interest
Microwave safe dishes do not heat if put in an oven without food on them
to
heat by conduction; melmac cannot be pt in a microwave because it does
absorb - I don't know what's in melmac but it must have some water content
Date: 23-Apr-01 02:07:07 MsgID: 1078-34037 ToID: 72146,373
From: David Instone INTERNET:david_inst...@uk.xyratex.com
Subj: Re: 2. 4 GHz cordless telephone, question of general interest
Chrg: $0.00 Imp: Norm Sens: StdReceipt: NoParts: 1
List-Post: emc-pstc
.
--
From: david_inst...@uk.xyratex.com (David Instone)
To: Ken Javor ken.ja...@emccompliance.com
Cc: emc-p...@ieee.org
Subject: Re: 2. 4 GHz cordless telephone, question of general interest
Date: Mon, Apr 23, 2001, 3:05 AM
Ken Javor wrote:
Just goes to show you can find anything
Ken Javor wrote:
Just goes to show you can find anything on the net. I have measured leakage
from microwave ovens and every one was at 2450 MHz. And that IS a resonant
frequency for water and water alone. That's why you can put waterless items
in and they won't heat up,
Hm, now I wonder
Subject: 2. 4 GHz cordless telephone, question of general interest
Someone on this forum likely knows the answer to this question...
I was at Wal-Mart the other day and they had 2.4 GHz cordless phones on
clearance. My home cordless phones are 900 MHz. One is multiple
channels,
the other
hz cordless phone use 900mw on the base unit and 200mw
on the handset. I would suspect the field intensity that close to the head
could be substantial.
Ralph Cameron
- Original Message -
From: "Ken Javor" <ken.ja...@emccompliance.com>
To: <emc-p...@ieee.org>
Sent: Fr
be substantial.
Ralph Cameron
- Original Message -
From: Ken Javor ken.ja...@emccompliance.com
To: emc-p...@ieee.org
Sent: Friday, April 20, 2001 5:40 PM
Subject: 2. 4 GHz cordless telephone, question of general interest
Someone on this forum likely knows the answer to this question...
I
a microwave
oven without a water load: with no load you get high vswr and the magnetron
can be damaged by reflected energy.
--
From: Rich Nute ri...@sdd.hp.com
To: ken.ja...@emccompliance.com
Cc: emc-p...@ieee.org
Subject: Re: 2. 4 GHz cordless telephone, question of general interest
Date: Fri
Hi Ken:
Here are some quotes:
http://www.eskimo.com/~billb/weird/microexp.html#demo:
Q: Aren't these ovens tuned to a special frequency so they only heat
water?
A: No. The usual operating frequency of a microwave oven is nowhere
near the resonant frequency of water, and the
Someone on this forum likely knows the answer to this question...
I was at Wal-Mart the other day and they had 2.4 GHz cordless phones on
clearance. My home cordless phones are 900 MHz. One is multiple channels,
the other is some kind of spread spectrum. 2.4 GHz is very close to 2450
MHz, the
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