Re: [Elecraft] Calibration Standard

2005-02-18 Thread David A. Belsley
A couple of general questions to the reflector regarding voltage meter calibration: 1) if the meter is spot-on on one scale, can one assume it is so on all scales (or all autoranges)? I suspect the answer is no, but am surely willing to hear the word of those who know. 2) if the meter reads

Re: [Elecraft] Calibration Standard

2005-02-18 Thread Dan Allen
Well, I received my 5 volt calibration standard from Joe Geller at gellerlabs.com today. I upgraded to the KQ chip. The papers with it shows that it is calibrated to +/- 10 microvolts. On a 5 volt scale, that is +/- 2ppm. The initial calibration is then +/- 0.0002%! I connected it to my A

Re: [Elecraft] Calibration Standard

2005-02-14 Thread Bob - W5BIG
al Message - From: "Dan Allen" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "Stephen W. Kercel" <[EMAIL PROTECTED]>; "Elecraft Reflector" Sent: Monday, February 14, 2005 8:58 PM Subject: Re: [Elecraft] Calibration Standard > > > Look

Re: [Elecraft] Calibration Standard

2005-02-14 Thread Dan Allen
Look on my website www.qsl.net/w3fpr for an easy to build calibrator for your DMM. 73, Don W3FPR I looked at Don's neat little project, and really like it. However, I just don't have time to scratch-build right now. Out of curiosity, I did an EBay search for "voltage reference standard" and

RE: [Elecraft] Calibration Standard

2005-02-13 Thread Stephen W. Kercel
Don: That is really cool. I'm definitely figuring to build one of those. 73, Steve At 12:35 AM 2/14/2005 -0500, W3FPR - Don Wilhelm wrote: Steve, I don't have a direct answer to your question - I do believe that information is old and tha actual voltage depends on the battery type (zinc/car

RE: [Elecraft] Calibration Standard

2005-02-13 Thread W3FPR - Don Wilhelm
Steve, I don't have a direct answer to your question - I do believe that information is old and tha actual voltage depends on the battery type (zinc/carbon, alkalyne, etc), BUT --- Look on my website www.qsl.net/w3fpr for an easy to build calibrator for your DMM. 73, Don W3FPR > -Original Me