In a message dated 23/06/2010 14:12:00 GMT Daylight Time, mi...@flatsurface.com writes:
>At the local flea market, I picked up what appears to be an Efratom >FRS-C. It is marked "TTL" internally. It has the passive connector >board, but not the active board with the 15 MHz synthesizer on it. Connector board? No such beast described in the manual. Do you mean the A3 power supply board, which has the i/o connector on it? Active board? Ditto. Do you mean the A4 oscillator board, which has a 20 MHz VCXO on it? There's no 15 MHz anywhere in an FRS-C. -------------- The connector board and missing 15MHz board are external parts from the Lucent unit that originally contained them, not internal to the FRS module. The 15MHz board, "active" in that it contains electronics circuitry, isn't of much use to most folks anyway but the connector board carries the special D type connector with coax insert that interfaces to the FRS so that's extremely useful. regards Nigel GM8PZR _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
