#62 : On the Most Reasonable Questions with the Most Clear Answers
Hello, Allow us, please, to think that it is now the right time to set the following, most reasonable, questions and give their respective, most clear, answers: - - - - - - (c) gin&pez@arg (cc-by-4.0) 2019 : start - - - - - - Q1 : Who is "The Common User" and what does it mean "to operate an instrument "facupov" : From A Common User's Point of View" ? A1 : First of all, we welcome in our sow [Small Objective World] "The Common User", that is anyone who wants -as we do- to be able to operate an instrument in at least one useful way for his purposes, without diving too deep into its technicalities, by keeping himself outside of it as much as possible, or to put it on other words : anyone who wants to be able "to operate an instrument facupov : From A Common's User Point Of View". Q2 : Is it possible to operate any VNA "[AnyVNA]" facupov ? A2 : After the completion of our related research here, it seems to us now, more than ever before, that this is possible, as long as he is willing enough, of course, to adopt our just 36 (previously 39) character long description "[LeastVNA]" of [Any VNA], holding perfectly clear in our sow. Q3 : What is the "[LeastVNA]" description of [AnyVNA] ? A3 : That one of an operating [AnyVNA] with a connected one-port load. In this case, the generator of [AnyVNA] produces a primary signal which almost always forces the load to produce a secondary one, except when it has or matching the characteristic value of [AnyVNA], and thus it results to a zero secondary. By construction, [AnyVNA] forms and measures the ratio of the secondary to the primary FAR AWAY from the connected load and delivers it to the user. Because of this distanced measurement, when the user has to measure an unknown load, he has to connect and read not only the unknown one ratio given as g, but also, in addition to that, to connect three 3 known loads : Short, Matching, and Open ones, and measure them as s, l, and o, and then to calculate|compute the unknown value G by using our 36 character long formula: G=(g-l)(o-s)/[(g-o)(s-l)-(g-s)(l-o)] That's all. - No S parameters - No "Errors" - No TDR - No FDR - No Waves - No Pulses - No Reflections - No Incidents - No whatever else - No nothing - Just that: G=(g-l)(o-s)/[(g-o)(s-l)-(g-s)(l-o)] And this is just one of the results of our research in this group. Q4 : Is there a [LeastVNA] of [NanoVNA] ? A4 : Yes, of course, there is our /F/L/O/S/S/ computer program, which is based on the Putty output -in the way most successfully described elsewhere in this group of honorable members- of which the current version was already mentioned at: #59 : UPDATE : [LeastVNA] : version 20191020 /g/nanovna-users/message/5269 20 October 2019 in the wide context of : #50 : The Full Final Report 1 : - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Nominal Values Zinp = ( Rinp , Xinp ) of our Standard [ref2007box], in terms of frequency, using [NanoVNA] and [VNA] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - [NanoVNA] ~ [VNA] Comparison 16 October 2019 /g/nanovna-users/message/5061 and detailed step-by-step in various of our replies to specific questions in this very topic: [errors in "error" models] - Next to come : Explaining Our Full Final Report 2 - - - - end : (c) gin&pez@arg (cc-by-4.0) 2019 - - - - - - - - - - Sincerely, gin&pez@arg 62# |