home *** CD-ROM | disk | FTP | other *** search
/ NetNews Usenet Archive 1992 #31 / NN_1992_31.iso / spool / sci / electron / 21878 < prev    next >
Encoding:
Internet Message Format  |  1993-01-03  |  927 b 
  1. Xref: sparky sci.electronics:21878 alt.radio.scanner:3564 rec.radio.amateur.misc:21680
  2. Path: sparky!uunet!paladin.american.edu!howland.reston.ans.net!wupost!sdd.hp.com!network.ucsd.edu!ogicse!sequent!muncher.sequent.com!washer
  3. From: washer@sequent.com (Jim "Throw it over the wall" Washer)
  4. Newsgroups: sci.electronics,alt.radio.scanner,rec.radio.amateur.misc
  5. Subject: How to calculate crystal freq for scanner?
  6. Message-ID: <1993Jan2.200922.19977@sequent.com>
  7. Date: 2 Jan 93 20:09:22 GMT
  8. Article-I.D.: sequent.1993Jan2.200922.19977
  9. Sender: usenet@sequent.com (usenet )
  10. Organization: Sequent Computer Systems, Inc.
  11. Lines: 8
  12. Nntp-Posting-Host: crg8.sequent.com
  13.  
  14. I have a radio shack Pro-24 crystal controlled scanner..... (yep, poor me).
  15. It uses a 10.7MHz IF, and says to use third overtone crystals...
  16.  
  17. So, am I correct in  calculating the crystal fundamental as:
  18.  
  19. F(fund)*3 + 10.7MHz == Receive Freq?
  20.  
  21.  - jim washer@sequent.com
  22.