RF spikes when turning things on (switches, etc.)?

> Hey everyone,
>
> I've just noticed something that is surprising (to me), and I'm
> wondering if anyone could explain to me what it means, and if it's a
> "normal" occurrence/if anything can be done about it.
>
> Using two Gigahertz Solutions HF Analyzers, one from 800 MHz-2.5 GHz,
> and one from 2.4 GHz-6 GHz, I've noticed radio frequency surges when I
> turn things on and off in the house.
>
> For example, the electric kettle, the bathroom fan, even ordinary
> ceiling lights (with incandescent bulbs in them) or extension cords
> with a switch in the middle of the cord. Sometimes the RF surges can
> be measured up to five feet away from either the outlet or the switch
> of the device.
>
> In the case of the bathroom fan switch, it's really curious - turning
> it on, the 800 MHz-2.5 GHz meter will show a surge of about 35 uW/m2
> at a few feet away, but turning it OFF will show a surge of over 100
> uW/m2!
>
> I'm possibly missing something obvious, but this is the first time
> I've noticed this, though it probably has happened for quite some time.
>
> Overall, the ambient RF (that's readable within the range of these two
> meters, a total of 800 MHz up to 6 GHz, seems quite good - neither one
> even registers 0.1 uW/m2, thankfully, just walking around the house.
>
> We have no cordless/wireless devices, period (except a phone that's
> long been unplugged with the battery removed).
>
> The only known RF emitting devices I can think of are the two computer
> towers (and they are not using WiFi, nor have wireless networks set
> up, it's just something coming from the inner workings of them, I
> think, and it drops off quickly with distance.
>
> So - what does this mean? Is it "normal" for any electrical surge of
> something being turned on or off to carry radio frequency? Or may this
> indicate (by a means different than using a plug-in microsurge meter)
> that we have "dirty electricity"? Or that something is being
> transferred to our wiring from outside?
>
> And, is there a way to eliminate these RF bursts? Shielding wiring,
> something installed at the fuse box, filters of some sort, or what?
>
> Any advice or information is appreciated.
>
> Thanks!
>
> Cheers,
>
> R.
>

>
> In a message dated 2/23/2008 6:16:39 PM GMT Standard Time,
> [hidden email] <rticleone%40yahoo.ca> writes:
>
> And, is there a way to eliminate these RF bursts? Shielding wiring,
> something installed at the fuse box, filters of some sort, or what?
>
> I have noticed this, I had a key ring fob that flashes when a mibile rings
>
> and everytime I switched on the kitchen extract fan it set the thing off
> flashing ! The switch was a sliding type so I guess that when operated it
> gives
> off a burst/surge for a micro second in a broad frequency band perhaps due
> to
> the sudden largely uncontrolled surge that occurs and thus leaks out from
> the
> switch components. it does not bother me on the basis that it only happens
>
> infrequently and so will not cuase chronis effects. It is a fact that if
> you
> hook someone up to a EEG the brain will show itself register the flicking
> of a
> light switch over and above effects on the equipment, we are after all
> equisitely sensitive ES or not.
>
>
> PAUL UK
>
> Paul
>
> [Non-text portions of this message have been removed]
>
>
>

> If you turn something on you create a 'step function' which has
> all frequencies in it. Plus, the meter may not be too accurate with
> transients.
>
> The energy in the pulse is lower if there's less current being turned on
> or off. Hence I put LED bulbs (but not the kind with built in regulators)
> for the turn signal of my car...
> Bill
>
>
> On Sat, Feb 23, 2008 at 1:08 PM, <[hidden email]> wrote:
>
> >
> > In a message dated 2/23/2008 6:16:39 PM GMT Standard Time,
> > [hidden email] <rticleone%40yahoo.ca> writes:
> >
> > And, is there a way to eliminate these RF bursts? Shielding wiring,
> > something installed at the fuse box, filters of some sort, or what?
> >
> > I have noticed this, I had a key ring fob that flashes when a mibile
> > rings
> > and everytime I switched on the kitchen extract fan it set the thing off
> >
> > flashing ! The switch was a sliding type so I guess that when operated
> > it gives
> > off a burst/surge for a micro second in a broad frequency band perhaps
> > due to
> > the sudden largely uncontrolled surge that occurs and thus leaks out
> > from the
> > switch components. it does not bother me on the basis that it only
> > happens
> > infrequently and so will not cuase chronis effects. It is a fact that if
> > you
> > hook someone up to a EEG the brain will show itself register the
> > flicking of a
> > light switch over and above effects on the equipment, we are after all
> > equisitely sensitive ES or not.
> >
> >
> > PAUL UK
> >
> > Paul
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
>
>