[amsat-bb] Re: Signal source for 2.4ghz
kgshutt at cox.net
Tue Jan 22 08:27:08 PST 2008
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." <ko6th_greg at hotmail.com>
To: <amsat-bb at amsat.org>
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.
> From: lucleblanc6 at videotron.ca
> To: amsat-bb at amsat.org
> 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:
> You can try also some cheap analog 2.4ghz telephone a bit out of our band
> this tell you if your DC is working
> Luc Leblanc VE2DWE
> Skype VE2DWE
> WAC BASIC CW PHONE SATELLITE
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