[PSES] 24 volt dimmable 60 to 100W FCC Part 15 Class B conducted emissions (CE) compliant?
Hi everyone: It seems that there are lots of dimmable 24V LED power supplies out there, but the first 3 or 4 that we have looked at do not pass CE for various loading conditions. These are not simple 24V DC output supplies, these also have a two-terminal input port to accept a 0-10V analog or PWM control signal or variable resistance to dim the attached LEDs (NOT using high-side triac). I know there is a lot of experience and ideas on this listserv, but I'm not looking for workarounds like external AC input or DC output filters, I'm looking for an off-the-shelf supply that actually passes :-). Can anyone suggest a manufacturer or series? MeanWell dominates and some of their standard 24V supplies are good, but we have "different experience" with the dimmables. What a pain! Thanks in advance Best Regards Lee & Randal SILENT Solutions LLC - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
FCC Part 15 Class B Self Verifying
Ok Group, I appreciate all your helpful responses. It appears that 'Self Verifying' and 'Declaring Conformity' take on slightly different meanings depending on the type of equipment. Let's say that the equipment is not a personal computer or computer peripheral. I want to 'Self Verify' where I do all the testing and retain the test results. Can I label my equipment with any kind of statement indicating that the equipment is Class B compliant? If yes, does the Class B information on the label mean anything without an FCC ID? Let's apply the same question, if I were to go the DoC route, where the device has been tested by a certified testing lab. Can I label my equipment with any kind of statement indicating that the equipment is Class B compliant? All the information that I have read, isn't very clear. Thanks, Courtland Thomas Patton Electronics --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: FCC Part 15 Class B
While it is true that all personal computers destined for the home user must be Class B and therefore, "Certified", it is not true that any device that meets Class B limits must, as a consequence, also be Certified. Thus, if the device falls into the product category under FCC Verification (professional and other equipment not destined for the home user and not available for general distribution in retail stores) such devices (as FCC is wont to call them!) can be "verified" as meeting Class B limits. We have seen in the past Intel and IBM high-end industrial PCs that have been verified as meeting Class B limits, at a time when you still had to mention the Class in the mandatory verification markings on the product. However, you never saw these PCs available in your local computer/electronic store. Those of us in the industry that use such PCs are very pleased that they meet Class B limits even if legally (per FCC) they don't have to. Thus, such PCs could still be marked as verified to Class A limits; however, if they meet Class B, why not state so. If you've got it, flaunt it! Tania Grant, tgr...@lucent.com Lucent Technologies, Switching Solutions Group Intelligent Network and Messaging Solutions -Original Message- From: Dan Kinney (A) [mailto:dan.kin...@heapg.com] Sent: Tuesday, November 28, 2000 9:56 AM To: Courtland Thomas; emcpost Subject: RE: FCC Part 15 Class B 47CFR Part 15 Subpart B, paragraph 15.101(a) would lead you believe so. Within the table, under Type of device, it says Other Class B digital devices and peripherals. - Verification. Dan Kinney > -Original Message- > From: Courtland Thomas [SMTP:ctho...@patton.com] > Sent: Tuesday, November 28, 2000 1:20 PM > To: emcpost > Subject: FCC Part 15 Class B > > > Hello Group, > > I would like to know if it is permissible to self verify to Class B for > ITE. > I know it can be done for Class A, but I am not sure about Class B. The > interesting thing is that I posed the question to a contact at the FCC and > the answer I got was "No idea". > > Courtland Thomas > Patton Electronics > > > --- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: jim_bac...@mail.monarch.com > Michael Garretson:pstc_ad...@garretson.org > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: FCC Part 15 Class B
It depends on the product. Attached is a copy of a chart found in Subpart B that details the action needed for different products. There are different labelling requirements for Class B products that can use the DoC route. You can download FCC Pt15 at http://www.fcc.gov/Bureaus/Engineering_Technology/Documents/cfr/1998/47cfr15 .pdf. Jack -Original Message- From: Courtland Thomas [mailto:ctho...@patton.com] Sent: Tuesday, November 28, 2000 1:20 PM To: emcpost Subject: FCC Part 15 Class B Hello Group, I would like to know if it is permissible to self verify to Class B for ITE. I know it can be done for Class A, but I am not sure about Class B. The interesting thing is that I posed the question to a contact at the FCC and the answer I got was "No idea". Courtland Thomas Patton Electronics --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org <>
Re: FCC Part 15 Class B
See 15.101. Class B personal computers and peripherals may use either the Certification or Declaration of Conformity equipment authorization procedure. "Other class B digital devices and peripherals" are subject to the Verification equipment authorization procedure. Be careful as Verification is not the same as Declaration of Conformity with different labeling requirements, test site accreditation requirements, etc. See 47 CFR Part 2 for detailed descriptions of the equipment authorization procedures. Jon Curtis. Courtland Thomas wrote: > Hello Group, > > I would like to know if it is permissible to self verify to Class B for ITE. > I know it can be done for Class A, but I am not sure about Class B. The > interesting thing is that I posed the question to a contact at the FCC and > the answer I got was "No idea". > > Courtland Thomas > Patton Electronics > > --- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: jim_bac...@mail.monarch.com > Michael Garretson:pstc_ad...@garretson.org > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org -- Jon D. Curtis, P.E. Director of Engineering Curtis-Straus LLC One Stop Laboratory for NEBS, EMC, Product Safety, and Telecom Testing. 527 Great Road Littleton, MA 01460 USA Voice 978-486-8880 Fax 978-486-8828 email: jcur...@curtis-straus.com WWW.CURTIS-STRAUS.COM --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: FCC Part 15 Class B
Yes, class B ITE can be self-verified. However, if the ITE is a personal computer or personal computer peripheral, then the Declaration of Conformity procedure must be followed. The DofC procedure is essentially self-certification, but requires that the testing be performed at an accredited test laboratory (NVLAP, AALA). Jim Hulbert Senior Engineer-EMC Pitney Bowes "Courtland Thomas" on 11/28/2000 01:20:01 PM Please respond to "Courtland Thomas" To: "emcpost" cc:(bcc: Jim Hulbert/MSD/US/PBI) Subject: FCC Part 15 Class B Hello Group, I would like to know if it is permissible to self verify to Class B for ITE. I know it can be done for Class A, but I am not sure about Class B. The interesting thing is that I posed the question to a contact at the FCC and the answer I got was "No idea". Courtland Thomas Patton Electronics --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: FCC Part 15 Class B
47CFR Part 15 Subpart B, paragraph 15.101(a) would lead you believe so. Within the table, under Type of device, it says Other Class B digital devices and peripherals. - Verification. Dan Kinney > -Original Message- > From: Courtland Thomas [SMTP:ctho...@patton.com] > Sent: Tuesday, November 28, 2000 1:20 PM > To: emcpost > Subject: FCC Part 15 Class B > > > Hello Group, > > I would like to know if it is permissible to self verify to Class B for > ITE. > I know it can be done for Class A, but I am not sure about Class B. The > interesting thing is that I posed the question to a contact at the FCC and > the answer I got was "No idea". > > Courtland Thomas > Patton Electronics > > > --- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: jim_bac...@mail.monarch.com > Michael Garretson:pstc_ad...@garretson.org > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: FCC Part 15 Class B
You can Self-Certify. This is all described in FCC's CFR 47, Part 15.101. To read the rules for yourself, go to: http://www.access.gpo.gov/nara/cfr/waisidx_99/47cfr15_99.html regards, Randy Flinders EMC Engineer Emulex Corp. r.flind...@ieee.org Courtland Thomas wrote: > > Hello Group, > > I would like to know if it is permissible to self verify to Class B for ITE. > I know it can be done for Class A, but I am not sure about Class B. The > interesting thing is that I posed the question to a contact at the FCC and > the answer I got was "No idea". > > Courtland Thomas > Patton Electronics > > --- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: jim_bac...@mail.monarch.com > Michael Garretson:pstc_ad...@garretson.org > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: FCC Part 15 Class B
Hi, Courtland! You asked >>I would like to know if it is permissible to self verify to Class B for ITE.<< Isn't that what a DOC is? Cortland --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: FCC Part 15 Class B
If my memory is correct, in the near future the FCC will only accept DOC for Class B and not accept submissions. Many companies including the one I work for have been going the DOC route for Class A and B for several years now. regards, Guy Story, KC5GOI Interphase Corporation 13800 Senlac Dallas Texas 75234 - Original Message - From: "Courtland Thomas" To: "emcpost" Sent: Tuesday, November 28, 2000 12:20 PM Subject: FCC Part 15 Class B > > Hello Group, > > I would like to know if it is permissible to self verify to Class B for ITE. > I know it can be done for Class A, but I am not sure about Class B. The > interesting thing is that I posed the question to a contact at the FCC and > the answer I got was "No idea". > > Courtland Thomas > Patton Electronics > > > --- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: jim_bac...@mail.monarch.com > Michael Garretson:pstc_ad...@garretson.org > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > > > --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Re: FCC Part 15 Class B
You can issue a Declaration of Conformity providing the testing is conducted by an accredited laboratory. Pryor McGinnis Compliance Test Labs - Original Message - From: Courtland Thomas To: emcpost Sent: Tuesday, November 28, 2000 1:20 PM Subject: FCC Part 15 Class B > > Hello Group, > > I would like to know if it is permissible to self verify to Class B for ITE. > I know it can be done for Class A, but I am not sure about Class B. The > interesting thing is that I posed the question to a contact at the FCC and > the answer I got was "No idea". > > Courtland Thomas > Patton Electronics > > > --- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Jim Bacher: jim_bac...@mail.monarch.com > Michael Garretson:pstc_ad...@garretson.org > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > > --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
FCC Part 15 Class B
Hello Group, I would like to know if it is permissible to self verify to Class B for ITE. I know it can be done for Class A, but I am not sure about Class B. The interesting thing is that I posed the question to a contact at the FCC and the answer I got was "No idea". Courtland Thomas Patton Electronics --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: FCC part 15 class B, GTEM?
Yeah - I remember now that now!! My question to group is - Has anyone done this SUCCESSFULLY?? Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 Tel: (303)673-2908 Fax(303)661-7115 > -- > From: > wolfgang_josenh...@3com.com[SMTP:wolfgang_josenh...@3com.com] > Sent: Tuesday, November 30, 1999 1:49 PM > To: Grasso, Charles (Chaz) > Cc: emc-p...@majordomo.ieee.org; 'ron_cher...@densolabs.com' > Subject: RE: FCC part 15 class B, GTEM? > > > > Charles, > > Sorry, I guess I was in error with the Volumetric Site Attenuation inside > a > GTEM. It is not possible to get an antanna inside one. > > I believe that others have resonded with the correlation data the FCC has > accepted. > > Regards, > > Wolf Josenhans > > > > > > > "Grasso, Charles (Chaz)" on 11/29/99 > 11:25:12 AM > > Please respond to "Grasso, Charles (Chaz)" > > Sent by: "Grasso, Charles (Chaz)" > > > To: Wolfgang Josenhans/MW/US/3Com > cc: emc-p...@majordomo.ieee.org, "'RON_CHERNUS @densolabs.com'" > > Subject: RE: FCC part 15 class B, GTEM? > > > > > > Yes that is correct. > BTW, how does one do the volumetric > site attenuation in a GTEM? > > -Original Message- > From: wolfgang_josenh...@3com.com [mailto:wolfgang_josenh...@3com.com] > Sent: Monday, November 29, 1999 8:26 AM > To: Grasso, Charles (Chaz) > Cc: emc-p...@majordomo.ieee.org; 'ron_cher...@densolabs.com' > Subject: RE: FCC part 15 class B, GTEM? > > > > > My recollection is that the FCC stated a GTEM could be utilized as an > alternate > test site of ANSI C63.4 if correlation to an Open Area Test site could be > established. This correlation must include volumetric site attenuation > measurements and sample testing at a minimum. > > You can contact Art Wall at the FCC (aw...@fcc.gov) for more details. > > Regards, > > Wolf Josenhans > > > > > "Grasso, Charles (Chaz)" on 11/28/99 > 09:47:41 AM > > Please respond to "Grasso, Charles (Chaz)" > > Sent by: "Grasso, Charles (Chaz)" > > > To: emc-p...@majordomo.ieee.org, "'RON_CHERNUS @densolabs.com'" > > cc:(Wolfgang Josenhans/MW/US/3Com) > Subject: RE: FCC part 15 class B, GTEM? > > > > > > I don't belive you can... > Thank you > Charles Grasso > StorageTek > 2270 Sth 88th Street > Louisville CO 80027 > Tel: (303)673-2908 > Fax(303)661-7115 > > > > -- > > From: ron_cher...@densolabs.com[SMTP:ron_cher...@densolabs.com] > > Sent: Wednesday, November 24, 1999 9:30 AM > > To: emc-p...@majordomo.ieee.org > > Subject: FCC part 15 class B, GTEM > > > > > > I would like to know if I can take compliance data for FCC part 15 class > B > > in a GTEM?? Where is it allowed in writing > > by the FCC? I would also like to do FCC parts 22 and 24 on AMPS and PCS > > phones. I believe that a NSA would be needed. > > Has anyone reading this taken compliance RE data in a GTEM? > > Any information would be appreciated. > > > > Ron Chernus, Associate Test Engineer, DVT > > Denso International America > > Carlsbad, California, USA > > > > > > > > - > > This message is coming from the emc-pstc discussion list. > > To cancel your subscription, send mail to majord...@ieee.org > > with the single line: "unsubscribe emc-pstc" (without the > > quotes). For help, send mail to ed.pr...@cubic.com, > > jim_bac...@monarch.com, ri...@sdd.hp.com, or > > roger.volgst...@compaq.com (the list administrators). > > > > > > - > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > > > > > > - > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > > > > > - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: FCC part 15 class B, GTEM
Ron, In ANSI C63.4-1992 (American National Standard for Methods of Measurement of Radio-Noise Emissions from Low-Voltage Electrical and Electronic Equipment in the Range of 9 KHz to 40 GHz) paragraph 5.4.2 Alternate Test Sites, there is instructions on how to take measurements at an alternate test site (say a GTEM) and get the relevant authority (FCC) to accept them for final compliance . It involves the taking of measurements in a GTEM and at an OATS and showing they correlate for your product under test and then sending it to the FCC. We have done this and the FCC sent us a letter sort of approving our GTEM. There was a caveat in the letter and at the end of 5.4.2 that says in cases of disagreements measurements at an OATS take precedence. I had also heard that in ANSI C63.4-1999 version that GTEM's were going to be listed as an alternate test site making the performance of the above unnecessary. Does anyone know if the listing of the GTEM as an alternate test site in ANSI C63.4-1999 took place.? Hope this helps. Sandy Mazzola Regulatory Engineer Symbol Technologies Inc. Holtsville N.Y. 11742 >>> 11/24/99 12:30PM >>> I would like to know if I can take compliance data for FCC part 15 class B in a GTEM?? Where is it allowed in writing by the FCC? I would also like to do FCC parts 22 and 24 on AMPS and PCS phones. I believe that a NSA would be needed. Has anyone reading this taken compliance RE data in a GTEM? Any information would be appreciated. Ron Chernus, Associate Test Engineer, DVT Denso International America Carlsbad, California, USA - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: FCC part 15 class B, GTEM?
The FCC allowed GTEMs to be used as an alternative test site for making radiated emissions measurements under Part 15 of the FCC rules on Dec 2 1993 via public notice #40830. Regarding "correlation measurements": this Public Notice states that "Acceptable comparison data must be filed with the Customer Service Branch accompanied by an appropriate analysis that demonstrates equivalence with an OATS." and that "comparison data must be provided for each general type of equipment under test (equipment of similar functionality and physical configuration" GTEM manufacturers such as Schaffner, EMCO etc should be able to provide the required methodology etc! Tony Colorado - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: FCC part 15 class B, GTEM?
Yes that is correct.
BTW, how does one do the volumetric
site attenuation in a GTEM?
-Original Message-
From: wolfgang_josenh...@3com.com [mailto:wolfgang_josenh...@3com.com]
Sent: Monday, November 29, 1999 8:26 AM
To: Grasso, Charles (Chaz)
Cc: emc-p...@majordomo.ieee.org; 'ron_cher...@densolabs.com'
Subject: RE: FCC part 15 class B, GTEM?
My recollection is that the FCC stated a GTEM could be utilized as an
alternate
test site of ANSI C63.4 if correlation to an Open Area Test site could be
established. This correlation must include volumetric site attenuation
measurements and sample testing at a minimum.
You can contact Art Wall at the FCC (aw...@fcc.gov) for more details.
Regards,
Wolf Josenhans
"Grasso, Charles (Chaz)" on 11/28/99
09:47:41 AM
Please respond to "Grasso, Charles (Chaz)"
Sent by: "Grasso, Charles (Chaz)"
To: emc-p...@majordomo.ieee.org, "'RON_CHERNUS @densolabs.com'"
cc: (Wolfgang Josenhans/MW/US/3Com)
Subject: RE: FCC part 15 class B, GTEM?
I don't belive you can...
Thank you
Charles Grasso
StorageTek
2270 Sth 88th Street
Louisville CO 80027
Tel: (303)673-2908
Fax(303)661-7115
> --
> From: ron_cher...@densolabs.com[SMTP:ron_cher...@densolabs.com]
> Sent: Wednesday, November 24, 1999 9:30 AM
> To: emc-p...@majordomo.ieee.org
> Subject: FCC part 15 class B, GTEM
>
>
> I would like to know if I can take compliance data for FCC part 15 class B
> in a GTEM?? Where is it allowed in writing
> by the FCC? I would also like to do FCC parts 22 and 24 on AMPS and PCS
> phones. I believe that a NSA would be needed.
> Has anyone reading this taken compliance RE data in a GTEM?
> Any information would be appreciated.
>
> Ron Chernus, Associate Test Engineer, DVT
> Denso International America
> Carlsbad, California, USA
>
>
>
> -
> This message is coming from the emc-pstc discussion list.
> To cancel your subscription, send mail to majord...@ieee.org
> with the single line: "unsubscribe emc-pstc" (without the
> quotes). For help, send mail to ed.pr...@cubic.com,
> jim_bac...@monarch.com, ri...@sdd.hp.com, or
> roger.volgst...@compaq.com (the list administrators).
>
>
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RE: FCC part 15 class B, GTEM?
I don't belive you can... Thank you Charles Grasso StorageTek 2270 Sth 88th Street Louisville CO 80027 Tel: (303)673-2908 Fax(303)661-7115 > -- > From: ron_cher...@densolabs.com[SMTP:ron_cher...@densolabs.com] > Sent: Wednesday, November 24, 1999 9:30 AM > To: emc-p...@majordomo.ieee.org > Subject: FCC part 15 class B, GTEM > > > I would like to know if I can take compliance data for FCC part 15 class B > in a GTEM?? Where is it allowed in writing > by the FCC? I would also like to do FCC parts 22 and 24 on AMPS and PCS > phones. I believe that a NSA would be needed. > Has anyone reading this taken compliance RE data in a GTEM? > Any information would be appreciated. > > Ron Chernus, Associate Test Engineer, DVT > Denso International America > Carlsbad, California, USA > > > > - > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: FCC part 15 class B, testing
This is really a no brainer... To summarize: The answer to your questions is NO for the following reasons: 1. You are testing in an anechoic chamber (Read also K.Javors analysis) 2. The antenna cannot be raised to its full height requirement. Thats the bad news. The good news is that the FCC have accepted semi-anechoic chambers that meet the ANSI C63.4 site attenuation criteria as sutiable for compiance data. I suggest you contact them for more advice. The "Gold Standard" IMHO is still the OATS. -Original Message- From: ron_cher...@densolabs.com [mailto:ron_cher...@densolabs.com] Sent: Tuesday, November 23, 1999 11:30 AM To: emc-p...@majordomo.ieee.org Subject: FCC part 15 class B, testing I would like to know if I can take compliance data for FCC part 15 class B in an anechoic chamber if I can't vary the receive antenna from 1 to 4 metres?? (The chamber is not tall enough) Or do I need an OATS or GTEM? I would also like to do FCC parts 22 and 24 on AMPS and PCS phones. Any information would be appreciated. Ron Chernus, Associate Test Engineer, DVT Denso International Carlsbad, California, USA - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: FCC part 15 class B, testing - correction
The specification is now prEN50147-3 Emission measurements in Fully Anechoic Rooms The specification has just finished being fully translated and is about to go to vote by the CENELEC committee. MIRA have been involved in the development of this standard for a long time, this has included quite a detailed measurement program to determine the accuracy correlation between measurements made on OATS sites and fully anechoic sites. The correlation is not quite 6 dB, a correction factor of 5 dB has proved more accurate. As for the height scanning, in theory one fixed height should measure all emissions but in truth as the EUT size increases two or three heights should be examined to ensure the peak measurement is recorded. Regards Peter --- Peter Phillips EMC Consultant MIRA (Motor Industry Research Association) Tel: ++44 (0) 2476 355576 Mobile: ++44 (0) 780 3083657 Fax: ++44(0) 2476 355486 e-mail: peter.phill...@mira.co.uk -Original Message- From: Colgan, Chris [mailto:chris.col...@tagmclarenaudio.com] Sent: 24 November 1999 13:01 To: 'ron_cher...@densolabs.com'; 'emc-p...@majordomo.ieee.org' Subject: RE: FCC part 15 class B, testing - correction Sorry, the publication that outlines the detail of chamber emission measurements is: "Concept EMC standard. Anechoic chambers: Part X: Emission measurements in fully anechoic chambers" This is obviously a draft, although I think it is related to the EN50147 series. I don't even know who published it. Does anyone know? Regards Chris > -Original Message- > From: Colgan, Chris > Sent: 24 November 1999 09:49 > To: 'ron_cher...@densolabs.com'; emc-p...@majordomo.ieee.org > Subject: RE: FCC part 15 class B, testing > > Hi Ron > > I don't know if the FCC will accept measurements taken is an anechoic > chamber but. > > If you want to make some meaningful measurements in a chamber you have to > make sure it is truly anechoic, you do not want any reflected waves. You > should have the chamber validated to show that the chamber normalised site > transmission loss is within +/-4dB of free space. > > As a consequence of the chamber being anechoic, you do not vary the height > of the receiving antenna as there is no reflected wave from the ground. > The antenna height will correspond to the centre of your calibrated "test > volume". You have to remember that the measurements will be 6dB lower > than those taken at an OATS because of the missing ground reflection, you > should adjust your limits accordingly. > > The standard EN50147-2:1997 "Anechoic chambers. Alternative site > suitability with respect to site attenuation" explains everything in > detail. > > Regards > > Chris Colgan > EMC & Safety > TAG McLaren Audio Ltd > > mailto:chris.col...@tagmclarenaudio.com > > > > > -Original Message- > From: ron_cher...@densolabs.com [SMTP:ron_cher...@densolabs.com] > Sent: 23 November 1999 18:30 > To: emc-p...@majordomo.ieee.org > Subject:FCC part 15 class B, testing > > > I would like to know if I can take compliance data for FCC part 15 > class B > in an anechoic chamber if I can't > vary the receive antenna from 1 to 4 metres?? (The chamber is not > tall > enough) Or do I need an OATS or GTEM? > I would also like to do FCC parts 22 and 24 on AMPS and PCS phones. > Any > information would be appreciated. > > > > > > Ron Chernus, Associate Test Engineer, DVT > Denso International > Carlsbad, California, USA > > > > - > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > = > Authorised on 11/24/99 at 09:49:33; code 37f48bf3FC50C35A. = Authorised on 11/24/99 at 13:01:49; code 37f48bf30B52442B. The contents of this E-mail are confidential and for the exclusive use of the intended recipient. If you receive this E-mail in error, please delete it from your system immediately and notify us either by E-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the E-mail. TAG McLaren Audio Ltd, The Summit, 11 Latham Road Huntingdon, Cambs, PE18 6ZU Telephone : 01480 415600 (+44 1480 41
Re: FCC part 15 class B, testing
If the chamber is truly anechoic (six-sided absorber) then you will not meet the site attenuation requirement, which is based on constructive interference between direct and ground-bounced rays. -- >From: "Colgan, Chris" >To: "'ron_cher...@densolabs.com'" , emc-p...@majordomo.ieee.org >Subject: RE: FCC part 15 class B, testing >Date: Wed, Nov 24, 1999, 3:49 AM > > > Hi Ron > > I don't know if the FCC will accept measurements taken is an anechoic > chamber but. > > If you want to make some meaningful measurements in a chamber you have to > make sure it is truly anechoic, you do not want any reflected waves. You > should have the chamber validated to show that the chamber normalised site > transmission loss is within +/-4dB of free space. > > As a consequence of the chamber being anechoic, you do not vary the height > of the receiving antenna as there is no reflected wave from the ground. The > antenna height will correspond to the centre of your calibrated "test > volume". You have to remember that the measurements will be 6dB lower than > those taken at an OATS because of the missing ground reflection, you should > adjust your limits accordingly. > > The standard EN50147-2:1997 "Anechoic chambers. Alternative site > suitability with respect to site attenuation" explains everything in > detail. > > Regards > > Chris Colgan > EMC & Safety > TAG McLaren Audio Ltd > > mailto:chris.col...@tagmclarenaudio.com > > > > >> -----Original Message- >> From: ron_cher...@densolabs.com [SMTP:ron_cher...@densolabs.com] >> Sent: 23 November 1999 18:30 >> To: emc-p...@majordomo.ieee.org >> Subject: FCC part 15 class B, testing >> >> >> I would like to know if I can take compliance data for FCC part 15 class B >> in an anechoic chamber if I can't >> vary the receive antenna from 1 to 4 metres?? (The chamber is not tall >> enough) Or do I need an OATS or GTEM? >> I would also like to do FCC parts 22 and 24 on AMPS and PCS phones. Any >> information would be appreciated. >> >> >> >> >> >> Ron Chernus, Associate Test Engineer, DVT >> Denso International >> Carlsbad, California, USA >> >> >> >> - >> This message is coming from the emc-pstc discussion list. >> To cancel your subscription, send mail to majord...@ieee.org >> with the single line: "unsubscribe emc-pstc" (without the >> quotes). For help, send mail to ed.pr...@cubic.com, >> jim_bac...@monarch.com, ri...@sdd.hp.com, or >> roger.volgst...@compaq.com (the list administrators). >> > = > Authorised on 11/24/99 at 09:49:33; code 37f48bf3FC50C35A. > The contents of this E-mail are confidential and for the exclusive use of > the intended recipient. > If you receive this E-mail in error, please delete it from your system > immediately and notify us either by E-mail, telephone or fax. You should > not copy, forward or otherwise disclose the content of the E-mail. > > TAG McLaren Audio Ltd, The Summit, 11 Latham Road > Huntingdon, Cambs, PE18 6ZU > Telephone : 01480 415600 (+44 1480 415600) > Facsimile : 01480 52159 (+44 1480 52159) > > - > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: FCC part 15 class B, testing - correction
Sorry, the publication that outlines the detail of chamber emission measurements is: "Concept EMC standard. Anechoic chambers: Part X: Emission measurements in fully anechoic chambers" This is obviously a draft, although I think it is related to the EN50147 series. I don't even know who published it. Does anyone know? Regards Chris > -Original Message- > From: Colgan, Chris > Sent: 24 November 1999 09:49 > To: 'ron_cher...@densolabs.com'; emc-p...@majordomo.ieee.org > Subject: RE: FCC part 15 class B, testing > > Hi Ron > > I don't know if the FCC will accept measurements taken is an anechoic > chamber but. > > If you want to make some meaningful measurements in a chamber you have to > make sure it is truly anechoic, you do not want any reflected waves. You > should have the chamber validated to show that the chamber normalised site > transmission loss is within +/-4dB of free space. > > As a consequence of the chamber being anechoic, you do not vary the height > of the receiving antenna as there is no reflected wave from the ground. > The antenna height will correspond to the centre of your calibrated "test > volume". You have to remember that the measurements will be 6dB lower > than those taken at an OATS because of the missing ground reflection, you > should adjust your limits accordingly. > > The standard EN50147-2:1997 "Anechoic chambers. Alternative site > suitability with respect to site attenuation" explains everything in > detail. > > Regards > > Chris Colgan > EMC & Safety > TAG McLaren Audio Ltd > > mailto:chris.col...@tagmclarenaudio.com > > > > > -Original Message- > From: ron_cher...@densolabs.com [SMTP:ron_cher...@densolabs.com] > Sent: 23 November 1999 18:30 > To: emc-p...@majordomo.ieee.org > Subject:FCC part 15 class B, testing > > > I would like to know if I can take compliance data for FCC part 15 > class B > in an anechoic chamber if I can't > vary the receive antenna from 1 to 4 metres?? (The chamber is not > tall > enough) Or do I need an OATS or GTEM? > I would also like to do FCC parts 22 and 24 on AMPS and PCS phones. > Any > information would be appreciated. > > > > > > Ron Chernus, Associate Test Engineer, DVT > Denso International > Carlsbad, California, USA > > > > - > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > = > Authorised on 11/24/99 at 09:49:33; code 37f48bf3FC50C35A. = Authorised on 11/24/99 at 13:01:49; code 37f48bf30B52442B. The contents of this E-mail are confidential and for the exclusive use of the intended recipient. If you receive this E-mail in error, please delete it from your system immediately and notify us either by E-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the E-mail. TAG McLaren Audio Ltd, The Summit, 11 Latham Road Huntingdon, Cambs, PE18 6ZU Telephone : 01480 415600 (+44 1480 415600) Facsimile : 01480 52159 (+44 1480 52159) - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: FCC part 15 class B, testing
Hello, Some months ago, I ask the same question to FCC. Their answer was very clear !! As there is no standard allowing the use of an anechoic chamber for now, you cannot use it to perform test for FCC certification. We use our anechoic chamber to identify the frequencies from the product under test, AND we perform final measurements on our OATS. This process is fully accepted by FCC. Regards, Pierre SELVA -Original Message- From: Colgan, Chris To: 'ron_cher...@densolabs.com' ; emc-p...@majordomo.ieee.org List-Post: emc-pstc@listserv.ieee.org Date: Wednesday, November 24, 1999 10:54 AM Subject: RE: FCC part 15 class B, testing > > >Hi Ron > >I don't know if the FCC will accept measurements taken is an anechoic >chamber but. > >If you want to make some meaningful measurements in a chamber you have to >make sure it is truly anechoic, you do not want any reflected waves. You >should have the chamber validated to show that the chamber normalised site >transmission loss is within +/-4dB of free space. > >As a consequence of the chamber being anechoic, you do not vary the height >of the receiving antenna as there is no reflected wave from the ground. The >antenna height will correspond to the centre of your calibrated "test >volume". You have to remember that the measurements will be 6dB lower than >those taken at an OATS because of the missing ground reflection, you should >adjust your limits accordingly. > >The standard EN50147-2:1997 "Anechoic chambers. Alternative site >suitability with respect to site attenuation" explains everything in >detail. > >Regards > >Chris Colgan >EMC & Safety >TAG McLaren Audio Ltd > >mailto:chris.col...@tagmclarenaudio.com > > > > >> -Original Message- >> From: ron_cher...@densolabs.com [SMTP:ron_cher...@densolabs.com] >> Sent: 23 November 1999 18:30 >> To: emc-p...@majordomo.ieee.org >> Subject: FCC part 15 class B, testing >> >> >> I would like to know if I can take compliance data for FCC part 15 class B >> in an anechoic chamber if I can't >> vary the receive antenna from 1 to 4 metres?? (The chamber is not tall >> enough) Or do I need an OATS or GTEM? >> I would also like to do FCC parts 22 and 24 on AMPS and PCS phones. Any >> information would be appreciated. >> >> >> >> >> >> Ron Chernus, Associate Test Engineer, DVT >> Denso International >> Carlsbad, California, USA >> >> >> >> - >> This message is coming from the emc-pstc discussion list. >> To cancel your subscription, send mail to majord...@ieee.org >> with the single line: "unsubscribe emc-pstc" (without the >> quotes). For help, send mail to ed.pr...@cubic.com, >> jim_bac...@monarch.com, ri...@sdd.hp.com, or >> roger.volgst...@compaq.com (the list administrators). >> >= >Authorised on 11/24/99 at 09:49:33; code 37f48bf3FC50C35A. >The contents of this E-mail are confidential and for the exclusive use of the intended recipient. >If you receive this E-mail in error, please delete it from your system immediately and notify us either by E-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the E-mail. > >TAG McLaren Audio Ltd, The Summit, 11 Latham Road >Huntingdon, Cambs, PE18 6ZU >Telephone : 01480 415600 (+44 1480 415600) >Facsimile : 01480 52159 (+44 1480 52159) > >- >This message is coming from the emc-pstc discussion list. >To cancel your subscription, send mail to majord...@ieee.org >with the single line: "unsubscribe emc-pstc" (without the >quotes). For help, send mail to ed.pr...@cubic.com, >jim_bac...@monarch.com, ri...@sdd.hp.com, or >roger.volgst...@compaq.com (the list administrators). > > - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: FCC part 15 class B, testing
Hi Ron I don't know if the FCC will accept measurements taken is an anechoic chamber but. If you want to make some meaningful measurements in a chamber you have to make sure it is truly anechoic, you do not want any reflected waves. You should have the chamber validated to show that the chamber normalised site transmission loss is within +/-4dB of free space. As a consequence of the chamber being anechoic, you do not vary the height of the receiving antenna as there is no reflected wave from the ground. The antenna height will correspond to the centre of your calibrated "test volume". You have to remember that the measurements will be 6dB lower than those taken at an OATS because of the missing ground reflection, you should adjust your limits accordingly. The standard EN50147-2:1997 "Anechoic chambers. Alternative site suitability with respect to site attenuation" explains everything in detail. Regards Chris Colgan EMC & Safety TAG McLaren Audio Ltd mailto:chris.col...@tagmclarenaudio.com > -Original Message- > From: ron_cher...@densolabs.com [SMTP:ron_cher...@densolabs.com] > Sent: 23 November 1999 18:30 > To: emc-p...@majordomo.ieee.org > Subject: FCC part 15 class B, testing > > > I would like to know if I can take compliance data for FCC part 15 class B > in an anechoic chamber if I can't > vary the receive antenna from 1 to 4 metres?? (The chamber is not tall > enough) Or do I need an OATS or GTEM? > I would also like to do FCC parts 22 and 24 on AMPS and PCS phones. Any > information would be appreciated. > > > > > > Ron Chernus, Associate Test Engineer, DVT > Denso International > Carlsbad, California, USA > > > > - > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > = Authorised on 11/24/99 at 09:49:33; code 37f48bf3FC50C35A. The contents of this E-mail are confidential and for the exclusive use of the intended recipient. If you receive this E-mail in error, please delete it from your system immediately and notify us either by E-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the E-mail. TAG McLaren Audio Ltd, The Summit, 11 Latham Road Huntingdon, Cambs, PE18 6ZU Telephone : 01480 415600 (+44 1480 415600) Facsimile : 01480 52159 (+44 1480 52159) - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: FCC part 15 class B, testing
anechoic or semi-anechoic? -- >From: ron_cher...@densolabs.com >To: emc-p...@majordomo.ieee.org >Subject: FCC part 15 class B, testing >Date: Tue, Nov 23, 1999, 10:29 AM > > > I would like to know if I can take compliance data for FCC part 15 class B > in an anechoic chamber if I can't > vary the receive antenna from 1 to 4 metres?? (The chamber is not tall > enough) Or do I need an OATS or GTEM? > I would also like to do FCC parts 22 and 24 on AMPS and PCS phones. Any > information would be appreciated. > > > > > > Ron Chernus, Associate Test Engineer, DVT > Denso International > Carlsbad, California, USA > > > > - > This message is coming from the emc-pstc discussion list. > To cancel your subscription, send mail to majord...@ieee.org > with the single line: "unsubscribe emc-pstc" (without the > quotes). For help, send mail to ed.pr...@cubic.com, > jim_bac...@monarch.com, ri...@sdd.hp.com, or > roger.volgst...@compaq.com (the list administrators). > > - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
FCC part 15 class B, testing
I would like to know if I can take compliance data for FCC part 15 class B in an anechoic chamber if I can't vary the receive antenna from 1 to 4 metres?? (The chamber is not tall enough) Or do I need an OATS or GTEM? I would also like to do FCC parts 22 and 24 on AMPS and PCS phones. Any information would be appreciated. Ron Chernus, Associate Test Engineer, DVT Denso International Carlsbad, California, USA - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
