Lou, It is impressive and my boss Doug Smith uses it during some of his seminars. I have tried hitting the coins in the bag with a hammer several times very near the antenna - nothing. I even smacked two big screwdrivers together on the metal near the antenna for several minutes - nothing.
The piezoelectric effect is an interesting note, and I'll have to do more digging around about it. But for now, I not sure it is the mechanism. Whatever the mechanism, it is an elusive little bugger. And thanks about the info on the front end of an SA. Doug McKean At 09:03 AM 3/12/99 -0500, Lou Gnecco wrote: >Doug, > Despite the sampling window, the spectrum analyzer has a wide open >front end. It is easily saturated by broadband signals, even though you >think you are only looking at say, 100 to 200 MHz, the front end amplifiers >see everything. > > A lot of things have a piezoelectric effect, including bone and ice. >Maybe you are seeing that? Whatever it is, it's broad band. You are seeing >some extremely narrow impulses which have a wide range of frequency components. > > I have GOT to try this! > >Lou --------- 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, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
