Barry et al, Yes - I'm afraid I wasn't very clear about that. I felt that my original message may have led people to believe that Annex E & F were required (also known as normative) by the new EN 55011. In reality they are only useful as optional information or reference material (also known as informative) and strict compliance is not required.
I did not want to accidentally cause others more work than was really needed. Heck, I know I don't want any either! Table 6 is still required, if so desired by the local authorities, when the device is installed (known as in situ). Table 6 is actually part of the main body of EN 55011. The main body of a standard is entirely (with some exceptions if stated) normative. I can happily report that the matter of 30 meter Class A testing will not affect those of us that must ultimately comply with EN 61326 for lab, measurement, and control equipment. EN 61326 overrides the distance cited in EN 55011 by calling for 10 meter testing for either Class A or Class B. I've been so busy that I haven't been able to confirm whether EN 61326 has appeared in the OJ yet. Maybe someone has an update to offer the group? Regards, Eric Please respond to b...@namg.us.anritsu.com To: Eric Lifsey/AUS/NIC cc: Subject: Re: EN55011:1998, Antenna Distance... Eric, Sorry, I am still not clear what's wrong with your previous note, and what correction should be made. I do think you made important points on problems in EN55011 and good comparison between EN55011 and EN55022. Is there any way to let TC110 of CENELEC hear your voice? Thank you. Best Regards, Barry Ma ------------- Original Text From: <eric.lif...@natinst.com>, on 10/20/98 10:02 AM: Correction to my earlier post. Now that I have a good copy of the 1998 edition (previously I had a poor fax) I can relate a little good news. My references to Annex E & F, where a long list of protected frequencies appear, are *informative*, not normative. However, Table 6 is indeed part of the normative main section and still calls for unique emission limits and measurement distances for certain communication bands as an in situ test that could be required at the whim of the local authorities. Regards, Eric Lifsey National Instruments Please respond to eric.lif...@natinst.com To: emc-p...@majordomo.ieee.org cc: (bcc: Eric Lifsey/AUS/NIC) Subject: EN55011:1998, Antenna Distance... Quite some time ago a brief discussion of the problems of CISPR-11... [...] snip New Problems or Potentials in 1998 Edition: - Extensive "safety and sensitive service bands" with specific emission limits (many measured at 10 meters only) are in Table 6, Annex E and F; they appear to apply to Group I equipment as well as Group II equipment. [...] snip --------- 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, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
