-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sat, Jun 07, 2008 at 10:56:12AM -0400, David VanHorn wrote: > On Wed, Jun 4, 2008 at 7:22 PM, Jason Hsu wrote: > > Unfortunately, the LT5534 is for much higher frequencies (50 MHz to 3 > > GHz instead of 1.8-30 MHz). For those who can solder surface-mount > > parts, the LT5534 would work for 6m, 2m, 1.25m, 70cm, 23cm, and the > > bottom end of the microwave range. > > True. I don't know that it won't "work" at lower frequencies, it > detects AM CB radio from 50' away quite nicely, but how linear it is > would be the question. > > It's an amazing chip, lots of interesting information is available > from watching its output. I built a partially successful cell phone detector with one of those chips. http://petertodd.org/tech/emf-detector/ has some oscilloscope captures of it operating, I was very impressed that you could see the timeslices used by GSM phones, and individual phones going on and off the air. - -- http://petertodd.org 'peter'[:-1]@petertodd.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFITGdl3bMhDbI9xWQRAjPiAJ0XAHCl7MWy0NxmiSL2TPkYUwivAACfVq3g tx+ARNxcrvke3/OpOv8Mrbw= =YPHu -----END PGP SIGNATURE----- -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist