This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. ---559023410-342241519-1107543443=:4568 Content-Type: TEXT/PLAIN; charset=X-UNKNOWN; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Where on earth can one buy suitable microwave diodes in small qty? :-( -marc On Fri, 4 Feb 2005, [ISO-8859-1] Hern=E1n Freschi wrote: > check this out: http://home.wanadoo.nl/erwin.gijzen/wifiswr/ > Also, look for another DIY SWR meter. I can't find it now, but all it > takes is a microwave diode and you get DC, which you amplify later and > get a nice DC reading. > > hjf > > > On Fri, 04 Feb 2005 11:36:31 -0500, Marc Nicholas = wrote: >> That's what prompted the question -- there must be a relatively simple >> tunnel diode circuit that can be used. But there's no technical details = or >> schematics on that site. >> >> I also thought about using one of MAXIM's tiny (TSOC or SOT23) ISM band >> downconverters, and then smoothing out their still AC output with >> rectifier/caps. >> >> -marc >> >> >> On 2/4/05 10:59 AM, "Alex Harford" wrote: >> >>> On Fri, 04 Feb 2005 10:47:56 -0500, Marc Nicholas >>> wrote: >>>> Can anyone give me some guidance on a *simple* circuit for detecting 2= =2E4Ghz >>>> microwave (Wifi etc.) and providing DC output? It wouldn't have to be >>>> terribly sensitive and I'd prefer it to be pretty passive :-) >>> >>> There was just such a project on Slashdot yesterday: >>> >>> http://neil.moon-beam.com/users/kris/index.htm >>> >>> Alex >> >> -- >> http://www.piclist.com PIC/SX FAQ & list archive >> View/change your membership options at >> http://mailman.mit.edu/mailman/listinfo/piclist >> > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > ---559023410-342241519-1107543443=:4568 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist ---559023410-342241519-1107543443=:4568--