You can use any oscillator module, such as from an old PC motherboard, that will put out harmonics up in the 2.4 GHz range. I happened to find a 24.000 MHz one on an old MB. Just now, looking around in the junk drawer, I found ones for 4.000 and 16.000 MHz as well. Add 5 volts and a short piece of wire on the output pin, and you're good to go.
73,
George, KA3HSW
-----Original Message-----
From: Rm2642@aol.com Sent: May 13, 2008 10:53 AM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: AO-51 mode V/S
Unfortunately, I had no success with the AO-51 V/S mode this past week.
Before the next V/S mode operation comes around, I want to double check performance of my antenna and downconverter. Some of the folks in the UK had these items available during AO-40 days but don't think they're available today, such as:
_http://www.uk.amsat.org/index.php?option=com_content&task=view&id=25... 86_ (http://www.uk.amsat.org/index.php?option=com_content&task=view&id=25...)
I've seen Bob's K5GNA 2.4GHz Source on eBay with the: _http://cgi.ebay.com/2-4-GHz-SIGNAL-SOURCE-GARDINER-TYPE-LO2398-AMSAT_W0QQite... Z110251114382QQcmdZViewItem_ (http://cgi.ebay.com/2-4-GHz-SIGNAL-SOURCE-GARDINER-TYPE-LO2398-AMSAT_W0QQite...)
Are there other small modular type 2.4Ghz Sources out there that I can use to verify downlink setup?
Thanks, Ron N6PAA