The _Electrical Engineering Handbook_ (Editord by Richard C. Dorf, 1993) defines a broadband emission on page 934 as:
"An emission having a spectral distribution sufficiently broad in comparison to the response of a measuring receiver." So Werner is correct. ---------------------------- /\ | Martin Rowe | / \ | Senior Technical Editor | / \ /\ | Test & Measurement World | / \ / \ /\ ____ | voice 617-558-4426 |/ \ / \ / \/ | fax 617-558-4470 | \ / \/ | e-mail m.r...@ieee.org | \ / | http://www.tmworld.com | \/ ---------------------------- ---------- > From: werner_schae...@hp-sonoma-om1.om.hp.com > To: l...@tempest-inc.com > Cc: emc-p...@majordomo.ieee.org > Subject: Re: broadband/narrowband > Date: Friday, October 08, 1999 04:44 PM > > > The definition of a signal being narrowband or broadband is very > simple: if a signal's spectrum EXCEEDS the measurement instrument's > resolution bandwidth it is defined to be BROADBAND. In case a signal's > spectrum is completely contained within the passband of the resolution > bandwidth of the instrument (i.e. EMI receiver or spectrum analyzer), > it is classified as a narrowband signal. > > PLEASE recognize that THE ONLY criteria for the determination of a > signal being narrowband or broadband is the instruments resolution > bandwidth. Thus if the bandwidth is changed, e.g. to a larger value, > the signal could become a narrowband signal. > > This definition has a lot of problems to it but it is the "official > definition" in CISPR and IEC publications. > > I hope, this helps. > > Best regards, > > Werner Schaefer > Hewlett-Packard --------- 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).
