----- Original Message ----- From: "Joseph Gray" <[email protected]> To: "Discussion of precise time and frequency measurement" <[email protected]>
Sent: Sunday, March 06, 2016 2:31 PM Subject: [time-nuts] Old xtal filter
Assuming I made the pictures small enough, attached are two images of an very old crystal filter that a friend found. The strange thing about it is the bandwidth - 100 Hz. What could this have been used for, with such a narrow bandwidth? Joe Gray W5JG
-------------------------------------------------------------------------------- Loran maybe? It says 10 CPS for bandwidth. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
