I have a cousin to this converter (visually identical) and I found that it is very sensitive to low input voltage such as that caused by a lossy inserter, or insufficient supply current, such as that provided by my Yaesu Ft-847. It will operate at 12V, but is much less noisy and more stable at 13.8.
The dipole on the end, can be easily replaced with a flange-mount N-type or BNC jack, by only reaming out the existing screw holes, or just mount it as-is in fromt of your reflector. I also pig-tailed the I.F. connector using a section of RG-59, an F-connector crimped on one end, and a solder-type uhf on the other(it fits well-enough).
This is a handy piece of kit, and supports much wider useful bandwidth than that specified(depending on the comb filter configuration inside). Mine goes down to at least 2330(6M I.F.) as tested receiving the XM Satellite 2 kW local rebroadcast station 5 miles from here, having the comb filter removed.
Enjoy! 73 Auke VE6PWN
----- Original Message ----- From: "Bob- W7LRD" [email protected] To: [email protected] Sent: Wednesday, November 11, 2009 12:45 PM Subject: [amsat-bb] mmds downconverter
Hello
Has anyone had any experience with a GIDDC-2278 S band downconverter?
http://servsat.com/pdfs/PDFInalambricas/ServsatGIDDC22Series.pdf
I would like to convert it for a two meter IF. Got a new one pretty cheap.
73 Bob W7LRD
Seattle
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