MeasurementBlues

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Senior Technical Editor

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MeasurementBlues

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  • 06.17.2016
  • Why are 19-in. racks that size?
  • "As usual in wikipedia I not sure of anything, but ..." That's why I don't like to cite Wikipedia as an information source.
  • 06.16.2016
  • Honoring the late analog great Bob Pease
  • “I was a fresh college grad when Bob helped me by thoroughly editing my first application note." I would really love to see what Bob did to the draft of that app note.
  • 06.16.2016
  • Honoring the late analog great Bob Pease
  • I have some EDNs from the 1980s and 1990s that I've been looking through. As I do, I'm keeping a log of articles by Jim Williams and Bob Pease. Bob was listed on the masthead as a contributing editor.
  • 06.15.2016
  • Aeroscope funding campaign launched
  • Michael Dunn is right. Aeroscope is not intended as a bench scope. Because it's wireless, you can attach it to a machine or other system and monitor it's performance. Comparing the Aeroscope to a bench or even USB scope doesn't work here. If you're interested in becnh scopes, see 14 Bench Oscilloscopes Under $3000 http://www.eetimes.com/document.asp?doc_id=1329762 For USB scopes: USB Oscilloscopes from Pro to Hobbyist http://www.eetimes.com/document.asp?doc_id=1326699
  • 06.09.2016
  • IBIS-AMI for rocket scientists
  • "For those of you who are not familiar with hardware testing of SERDES channels, a Bit-Error Rate Tester (BERT) sends a known data stream such as a PRBS down a link comparing the received waveform with the original." PRBS=pseudorandom bit sequence where the length of the sequence is typically 2^7-1 (PRBS7), 2^15-1 (PRBS15) or 2^31-1 (PRBS31). Ransom Stephens argues against PRBS 31. http://www.edn.com/electronics-blogs/eye-on-standards/4397220/PRBS31--Slower--costlier--worse
  • 06.09.2016
  • IBIS-AMI for rocket scientists
  • DouglasW786 David Banas agrees with you. See "Free yourself from IBIS-AMI models with PyBERT" http://www.edn.com/design/test-and-measurement/4441991/Free-yourself-from-IBIS-AMI-models-with-PyBERT
  • 06.10.2016
  • Remembering Jim Williams, 5 years later
  • Paul, Just got my hands on some EDN issues from 1980-2000 (not all issues, but 5 boxes worth. Found a 1982 from Jim Williams. I'm sure there are many others.
  • 06.06.2016
  • A plea for one connector, one cable, one display
  • Paul, I'd like to name your speakers "the matching suitcases." I knew someone in college who built his own speakers for his dorm room. They were so big that it took two people to move them. We called them the matching washer and dryer. They sounded awful. the bass was booming. One day, I put an equalizer on his stereo system. What a difference.
  • 06.06.2016
  • Workshop shows off test and measurement equipment
  • Last year, Keysight held this worskop in Cambridge, but in a location that wasn't close to public transit and they nearly cancelled it because of low attendance. This you, it moved to Copley Square area in Boston, accessible by toe lines of train and buses as well. One of the lines goes directly to Northeastern Univ. and Wentworth. This time, the room was full. I used public transit to get there. Keysight really wants to hold these workshops in the Kendall Square area of Cambridge, which is next to MIT and on public transit. But, rooms book long in advance and none were available.