Gert, I can follow the dynamic range discussion, but how do we get 100V
amplitude signals in the detector stage, not to mention in RF input of the EMI
receiver? I thought we'd be receiving low rep pulse signals in the 100mV range
(100dBuV) at most. I recall that op-amps are good for at leas
The QP detector is all about pulse detection. It’s not relevant for CW
inputs.
Say we have 1 mS input pulses repeating at a defined interval.
(We want to detect 1 mS pulses, that’s why the rise time of 1 mS was
selected)
(actually we detect faster pulses also, but not relevant for this discussio
Didn't the signal strength (S meters) use the AGC level for determination of
incoming RF level. (at least a relative indication)
I can see how a mixer or IF amp can get overloaded, but if the attenuation and
RF BW are appropriate and no overload exists in the preceding signal path, I
cannot see
In message
, dated Wed, 24 Mar 2010,
ralph.mcdiar...@ca.schneider-electric.com writes:
>When I think of how well a simple AVC circuit in an AM radio receiver
>works, I assumed that an extension of that would serve well as a QP
>filter (with TC for both charge and discharge) If the tuned signa
Not only do I argue with myself I often lose the argument... I think, no
no I was right the first time..
Gary McInturff
208 635 8306
From: Price, Edward [mailto:ed.pr...@cubic.com]
Sent: Wednesday, March 24, 2010 11:53 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] [EMC-PSTC] RE: Subjec
When I think of how well a simple AVC circuit in an AM radio receiver works, I
assumed that an extension of that would serve well as a QP filter (with TC for
both charge and discharge) If the tuned signal fell within the range of the
IF amplifier string, I thought that would have been enough prot
Related to one of my favorite T-shirts:
"I flunked the Turing Test"
Brian
> -Original Message-
> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Price,
> Edward
> Sent: Wednesday, March 24, 2010 10:53 AM
> To: EMC-PSTC@LISTSERV.IEEE.ORG
> Subject: RE: [EMC-PSTC] RE:
NO the QP detector is not simple at all !
Asymmetric charge and discharges are not easy to build in hardware with good
dynamic range.
If you need to accept and correctly handle pulse repetition rates
of 10 Hz or even lower, the “headroom” of the electronics
required to build a compliant peak
> -Original Message-
> From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of ce-
> test, qualified testing bv - Gert Gremmen
> Sent: Wednesday, March 24, 2010 11:47 AM
> To: Dan Roman; EMC-PSTC@LISTSERV.IEEE.ORG
> Subject: [EMC-PSTC] RE: Subject headers from the listserv
>
> Well
Well, that's a complex way to do something simple ;<))
Now if I send [answer] to the list server followed by a
Question, will it answer my question ? That would be innovative !
Gert
Van: emc-p...@ieee.org [mailto:emc-p...@ieee.org] Namens Dan Roman
Verzonden: woensdag 24 maart 2010 19:36
Aan: EM
EMC-PSTC list readers,
I just wanted to pass along a quick informational message about the listserv.
For those that desire it, you can have the listserv embed a prefix to the
subject line to make it easier to identify messages coming from this email
list. Some of you may already have this featur
In message
, dated Wed, 24 Mar 2010,
ralph.mcdiar...@ca.schneider-electric.com writes:
>For a clear, general approach, I'd like to see the generics used for
>all electronic products where it makes sense to do so. For instance,
>why would a DC power supply need a family-specific EMC standard
In message
, dated Wed, 24 Mar 2010,
ralph.mcdiar...@ca.schneider-electric.com writes:
>Probably related to the increased measurement bandwidth at higher
>frequencies. There is an interesting PDF of a Power Point presentation,
>including relatively recent developments, at:
>
>resource.npl.co.u
For a clear, general approach, I'd like to see the generics used for all
electronic products where it makes sense to do so. For instance, why would a
DC power supply need a family-specific EMC standard?
I'd also like to see a generic standard for product safety for most electrical
and electro
Thanks to John, Michael, Robert and Ken for shedding some light on a topic
which I suspect many of the rest of us don't understand as well as we would
like. It seems like such a simple option to the detector of an EMI receiver
or spectrum analyser, I'm surprised it's not found in all of them.
__
In message
<26787621DE18DA4EA18F8B4A1884ADAD054BF35D@EXMBX01.iconnect.world>, dated
Wed, 24 Mar 2010, "Ian White (UK)"
writes:
>From a EMC environment point of view how would you classify Electrical
>Power Generating Stations.
>
>Would they fit under the generic umbrella of Heavy Industrial
I need help in answering the following question:
>From a EMC environment point of view how would you classify Electrical Power
Generating Stations.
Would they fit under the generic umbrella of Heavy Industrial or would they
have there own specialised category ?
Thanks for your help.
Reg
All,
There will be a Northeast Product Safety Society / CNEC Product Safety
Engineering Society meeting today, March 24th, at the Holiday Inn,
Boxborough MA. A social hour with light refreshments will begin at 7:00
PM and the technical meeting will start at 7:30 PM. Tom Revesz, EMC
Sales Manager
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