RE>dB margin 10/10/96
Cynthia, stick with 3 db margin. You back off now, I am sure next project you may get have 2.5 db margin. Kamran Mohajer, M.S. Sr. Agency Compliance Engineer BABT Deputy Approvals Liaison Engineer N.E.T. (Network Equipment Technologies) 800 Saginaw Drive Redwood City , CA 94063 Tel: 415-780-5365 Fax: 415-780-5004 [email protected] -------------------------------------- List-Post: [email protected] Date: 10/9/96 1:42 PM To: Kamran Mohajer From: [email protected] I don't know about all of you, but I am sick of arguing with hardware engineering managers about what constitutes a passing EMC test and what does not. I have seen companies impose a 6dB margin requirement, some 5 dB, and some 3dB. I have made the recommendation that the minimum here should be 3dB. I thought that this was fair. Now comes the product that has 2.8dB margin. Being a stick by the rules type of person, I listened to the engineer explain that it was the lousy PC his card was in not his card. So I suggested that we prove his theory, purchase a new machine and check the old machine versus the new one and if there is an improvement, that I would let the 2.8dB stand. Of course the manager of the group tells me that as a recommendation 3dB is good, but as a rule it is IRRESPONSIBLE. Thus I end up with the "be a b___ch" option of imposing the retest for the .2dB or starting a precedence of well if .2 is okay, is .3 etc. etc. What I would like to do is take a pole. (must be election year in the USA!!!!!!!!!!!) I would like all of you to respond as to what you feel is appropriate. Then I'll run the stats and let you what the results are. This way I can go back to the manager with the number of certification experts that responded and what they thought was right. He or I will have a hard time arguing against stats. (I am open to the possibility that I am wrong and 0 margin is acceptable). Just reply with a number and I'll let you know what happens. Thanks Cynthia [email protected] ------------------ RFC822 Header Follows ------------------ Received: by Mac2.net.com with ADMIN;9 Oct 1996 13:41:33 -0800 Received: from europe.std.com by unet.net.com (SMI-8.6/SMI-SVR4) id NAA11382; Wed, 9 Oct 1996 13:34:27 -0700 Received: by europe.std.com (8.7.5/BZS-8-1.0) id QAA26819; Wed, 9 Oct 1996 16:00:17 -0400 (EDT) X-Authentication-Warning: europe.std.com: daemon set sender to treg-approval using -f Received: from world.std.com by europe.std.com (8.7.5/BZS-8-1.0) id QAA26798; Wed, 9 Oct 1996 16:00:13 -0400 (EDT) Received: from msp-ln05.dgii.com by world.std.com (5.65c/Spike-2.0) id AA03538; Wed, 9 Oct 1996 15:58:01 -0400 Received: from Lotus Notes (PU Serial #1839) by msp-ln05.dgii.com (PostalUnion/SMTP(tm) v2.1.9a for Windows NT(tm)) id AA-1996Oct09.125614.1839.134261; Wed, 09 Oct 1996 14:59:36 -0500 From: [email protected] (Cynthia Pleach) To: [email protected] Message-Id: <[email protected]> X-Conversion-Id: <PU-NOTES.2231.844883774.5944> X-Mailer: Lotus Notes via PostalUnion/SMTP for Windows NT Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Organization: Digi International List-Post: [email protected] Date: Wed, 09 Oct 1996 14:59:36 -0500 Subject: dBmargin Sender: [email protected] Precedence: bulk Reply-To: [email protected]
