Couldn't that converter also sample the 455 kHz directly? We are dealing with a BW of just around 10 kHz. The filtering of the signal is usually also quite good. Some receivers have an ultimate rejection of out-of-band signals of more than 90dB. By choosing the sample rate carefully, one ought to be able to avoid troublesome aliasing. Or?
Per-Tore At 11:59 31.10.2005, you wrote: ... >Racal used 30 kHz because they could use a cheap 24-bit audio codec for the >A/D conversion. > >Leon +-----------------------+------------------------------+ | Per-Tore Aasestrand | E-mail : [EMAIL PROTECTED] | | P.O. Box 1708 Nordnes | Voice : + 47 - 55 32 32 35 | | N-5816 Bergen, Norway | Mobile : + 47 - 92 04 44 76 | +-----------------------+------------------------------+ ------------------------ Yahoo! Groups Sponsor --------------------~--> Get fast access to your favorite Yahoo! Groups. Make Yahoo! your home page http://us.click.yahoo.com/dpRU5A/wUILAA/yQLSAA/ELTolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/soft_radio/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
