Re: [PSES] Field probe calibration

2018-03-07 Thread John Woodgate
com>] *Sent:* Tuesday, March 06, 2018 7:37 AM *To:* Edward Price *Subject:* Re: [PSES] Field probe calibration Hello Ed -   Good morning!   You are correct - the factors stored in the probe correct for the non-linearities of the diode detector.       (  as a side note- h

Re: [PSES] Field probe calibration

2018-03-07 Thread Patrick
lar steel, so it was obvious that this conductive > mass (not to mention the shielded, multi-conductor power & signal cable) > would distort the measured field and degrade the isotropicity.* > > > > > *Ed Price **WB6WSN* > *Chula Vista, CA USA* > > > > *From:*

Re: [PSES] Field probe calibration

2018-03-06 Thread Ken Javor
Price <e...@jwjelp.com> Reply-To: Edward Price <e...@jwjelp.com> Date: Tue, 6 Mar 2018 21:57:28 + To: <EMC-PSTC@LISTSERV.IEEE.ORG> Conversation: [PSES] Field probe calibration Subject: Re: [PSES] Field probe calibration Patrick: The probe manufacturer says something like ³

Re: [PSES] Field probe calibration

2018-03-06 Thread Edward Price
sday, March 06, 2018 7:37 AM To: Edward Price Subject: Re: [PSES] Field probe calibration Hello Ed - Good morning! You are correct - the factors stored in the probe correct for the non-linearities of the diode detector. ( as a side note- hearing a presentation live, and asking/answe

Re: [PSES] Field probe calibration

2018-03-06 Thread Edward Price
[mailto:ken.ja...@emccompliance.com] Sent: Monday, March 05, 2018 8:19 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Field probe calibration It is clear that any correction table built into the field probe hardware/firmware/software is time domain only, so linearity correction factors based

Re: [PSES] Field probe calibration

2018-03-05 Thread Ken Javor
avor Phone: (256) 650-5261 From: Edward Price <e...@jwjelp.com> Reply-To: Edward Price <e...@jwjelp.com> Date: Tue, 6 Mar 2018 01:27:07 + To: <EMC-PSTC@LISTSERV.IEEE.ORG> Conversation: [PSES] Field probe calibration Subject: Re: [PSES] Field probe calibration This is in

Re: [PSES] Field probe calibration

2018-03-05 Thread Edward Price
rice WB6WSN Chula Vista, CA USA From: Patrick [mailto:conwa...@gmail.com] Sent: Monday, March 05, 2018 1:36 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Field probe calibration A great presentation on field probes can be found on the web. The author is Zhong Chen, an engineer with

Re: [PSES] Field probe calibration

2018-03-05 Thread Ken Javor
: (256) 650-5261 From: Patrick <conwa...@gmail.com> Date: Mon, 5 Mar 2018 15:26:03 -0700 To: Ken Javor <ken.ja...@emccompliance.com> Cc: <EMC-PSTC@listserv.ieee.org> Subject: Re: [PSES] Field probe calibration http://ieee.rackoneup.net/rrvs/10/Zhong%20Probe.pdf Look at the la

Re: [PSES] Field probe calibration

2018-03-05 Thread Patrick
018 14:36:11 -0700 > *To: *Ken Javor <ken.ja...@emccompliance.com> > *Cc: *<EMC-PSTC@listserv.ieee.org> > *Subject: *Re: [PSES] Field probe calibration > > A great presentation on field probes can be found on the web. > The author is Zhong Chen, an engineer with one of the probe manu

Re: [PSES] Field probe calibration

2018-03-05 Thread Patrick
-------- > *From: *Patrick <conwa...@gmail.com> > *Date: *Mon, 5 Mar 2018 11:10:52 -0700 > *To: *Ken Javor <ken.ja...@emccompliance.com> > *Cc: *<EMC-PSTC@listserv.ieee.org> > *Subject: *Re: [PSES] Field probe calibration > > Well, some of us have to consid

Re: [PSES] Field probe calibration

2018-03-05 Thread Ken Javor
no, if I know beforehand that the numbers don¹t matter.² Ken Javor Phone: (256) 650-5261 From: Patrick <conwa...@gmail.com> Date: Mon, 5 Mar 2018 11:10:52 -0700 To: Ken Javor <ken.ja...@emccompliance.com> Cc: <EMC-PSTC@listserv.ieee.org> Subject: Re: [PSES] Field probe calib

Re: [PSES] Field probe calibration

2018-03-05 Thread John Woodgate
n I email the listserve, and when it is delivered. Thanks, David Schaefer From: Ken Javor [mailto:ken.ja...@emccompliance.com <mailto:ken.ja...@emccompliance.com>] Sent: Sunday, March 04, 2018 12:17 PM To: EMC-PSTC@LISTSERV.IEEE.ORG

Re: [PSES] Field probe calibration

2018-03-05 Thread John Woodgate
See below. John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk Rayleigh, Essex UK On 2018-03-05 18:10, Patrick wrote: Well, some of us have to consider other requirements, not just EN's. What if the test is -461, or DO-160 ? And what if the requirement is 200 V/m ?

Re: [PSES] Field probe calibration

2018-03-05 Thread Patrick
0-5261 > > > -- > *From: *John Woodgate <j...@woodjohn.uk> > *Reply-To: *John Woodgate <j...@woodjohn.uk> > *Date: *Mon, 5 Mar 2018 16:19:10 + > *To: *<EMC-PSTC@LISTSERV.IEEE.ORG> > *Subject: *Re: [PSES] Field probe calibration &g

Re: [PSES] Field probe calibration

2018-03-05 Thread Ken Javor
t;j...@woodjohn.uk> Reply-To: John Woodgate <j...@woodjohn.uk> Date: Mon, 5 Mar 2018 16:19:10 + To: <EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Field probe calibration +/- 20% doesn't seem to be enough to explain the reported result. After all, assuming the +/- 20% is off the

Re: [PSES] Field probe calibration

2018-03-05 Thread John Woodgate
chaefer From: Ken Javor [mailto:ken.ja...@emccompliance.com <mailto:ken.ja...@emccompliance.com>] Sent: Sunday, March 04, 2018 12:17 PM To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Field probe calibration In turn: It i

Re: [PSES] Field probe calibration

2018-03-05 Thread Patrick
hour delay between when I email the listserve, and when it is delivered. > > Thanks, > > David Schaefer > > > From: Ken Javor [mailto:ken.ja...@emccompliance.com] > Sent: Sunday, March 04, 2018 12:17 PM > To: EMC-PSTC@LISTSERV.IEEE.ORG > Subject: Re: [PSES] Field probe calibratio

Re: [PSES] Field probe calibration

2018-03-04 Thread Schaefer, David
, and when it is delivered. Thanks, David Schaefer From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: Sunday, March 04, 2018 12:17 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Field probe calibration In turn: It is not surprising at all that it takes less power to generate

Re: [PSES] Field probe calibration

2018-03-04 Thread Ken Javor
.ja...@emccompliance.com> Reply-To: Ken Javor <ken.ja...@emccompliance.com> Date: Sun, 4 Mar 2018 12:16:41 -0600 To: <EMC-PSTC@LISTSERV.IEEE.ORG> Conversation: [PSES] Field probe calibration Subject: Re: [PSES] Field probe calibration In turn: It is not surprising at all that it takes less

Re: [PSES] Field probe calibration

2018-03-04 Thread Ken Javor
equipment, but your actual field could be +/- 3dB due to just probe error. Thanks, David Schaefer From: Cortland Richmond [mailto:k...@earthlink.net] Sent: Sunday, March 04, 2018 7:02 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Field probe calibration I'm with Gert. Anything &q

Re: [PSES] Field probe calibration

2018-03-04 Thread Schaefer, David
could be +/- 3dB due to just probe error. Thanks, David Schaefer From: Cortland Richmond [mailto:k...@earthlink.net] Sent: Sunday, March 04, 2018 7:02 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Field probe calibration I'm with Gert. Anything "antennas" is checked in the

Re: [PSES] Field probe calibration

2018-03-04 Thread Ken Javor
Javor Phone: (256) 650-5261 From: Cortland Richmond <k...@earthlink.net> Reply-To: Cortland Richmond <k...@earthlink.net> Date: Sun, 4 Mar 2018 08:01:31 -0500 To: <EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Field probe calibration I'm with Gert. Anything &quo

Re: [PSES] Field probe calibration

2018-03-04 Thread Cortland Richmond
I'm with Gert. Anything "antennas" is  checked  in the far-field -- especially if testing for accuracy. I'm a BIG fan of near-field probing for relative measurements and localizing emissions, but we use probes appropriate to what we are looking for; if I wanted to "calibrate" one there,

Re: [PSES] Field probe calibration

2018-03-04 Thread Gert Gremmen; ce-test
IMHO all probes are calibrated under far field conditions. In general: Using probes in the proximity (< lambda) of anything conductive (including ground planes at 10 cm and including EUT) makes the measurement data useless. As James correctly states, the construction of the probe makes this

Re: [PSES] Field probe calibration

2018-03-04 Thread James Pawson (U3C)
Hi David, An interesting set of results! I'm going to ask some questions that I'm sure you've already considered so please bear with me being Captain B. Obvious. Do your field probes use frequency correction? I'm not familiar with a wide range of probes but my Narda PMM field probe has an