I use the DEM Weak Siginal Source (WSS 2401). This kit is the local oscillator used on all DEM microwave transverters. 2nd harmonic output on 2401 mhz is -15 dbm.
73 de Ken W5KQ
----- Original Message ----- From: "Greg D." [email protected] To: [email protected] Sent: Monday, January 21, 2008 12:35 PM Subject: [amsat-bb] Re: Signal source for 2.4ghz
I've used the crystal module method for testing my 2.4 ghz equipment (but I used a 50 mhz crystal instead). Works well, except that the frequency is not very stable. It seems like it wants to switch between two different frequencies from time to time, and I don't know if it's related to battery voltage, temperature, or a gentle thump on the side of the case.
Also when running that many harmonics, the signal is not very pure, but on ssb or cw (but not with the narrow filter in place!) you can tell it's there. Just don't expect a nice sweet heterodyne tone.
I mounted mine in a metal box and hung it from a tree in the yard. Way too strong to align anything. I like Dom's idea of putting it several km away; that's the right way to do things.
Greg KO6TH
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From: [email protected] To: [email protected] Date: Mon, 21 Jan 2008 10:10:20 -0500 Subject: [amsat-bb] Signal source for 2.4ghz
At $2, it was all I used to hack and tweak my downconverter. I got this idea from a VE2 ham's webpages, but I can't seem to google them up right now.
Here is yours link: http://ve2zaz.net/SigSourc/SigSourc.htm
You can try also some cheap analog 2.4ghz telephone a bit out of our band but this tell you if your DC is working
Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE
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