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I-Q and HF SSB/AM/FM questions, bulk buy for 200Mhz SAW oscs
- Subject: I-Q and HF SSB/AM/FM questions, bulk buy for 200Mhz SAW oscs
- From: Alex Crow <acrow@xxxxxxxxxxxxxxxxxxxx
- Date: Fri, 4 Jul 2003 16:16:21 +0100
I am new to the list and very new to linrad - I only installed it yesterday
and am already bewildered by its (admittedly very cool) interface.
I am in the process of building an HF receiver based on the SDR-1000, see
http://www.flex-radio.com which is a based on a Tayloe detector and produces
I-Q signals at baseband, one going to the left input on my SB16 (yes, I know
it's not great) and one to the right.
I noticed that Linrad has an SSB and FM mode with I-Q input, but I can't find
any guide to using it this way. Does anyone have any pointers for getting the
software tuned for SSB/AM and FM, and which controls are relevant for its
reception once you're in the main window?
On another note, my design, as does the SDR-1000, requires a low-jitter source
of 200MHz to clock the AD9854 DDS in order not to degrade its good phase
noise performance. I have found a source for these (Epson QD, EG2121CA,
jitter sub 5ps) but the price is a little high at 38UKP each. Does anyone on
the list know, or have, anything as good as these at a better price? If
others are interested in these I may be able to get a discount on more than
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