Hi guys, that's right, leave the old GPS in there so the firmware won't complain. Just cut the 1PPS signal between the GPS and main-board, and feed-in an external 1PPS with higher stability, the Z3801A will never know the difference. Should work well. bye, Said
In a message dated 12/3/2009 13:59:51 Pacific Standard Time, mi...@flatsurface.com writes: UT+ won't work as a replacement - http://realhamradio.com/cgi-bin/yabb/YaBB.cgi?board=1;action=display;num=114 0559595;start=5 I think he was talking about simply wiring around the VPs 1 PPS output, getting the 1 PPS signal from a better source. Leave the VP receiver in place otherwise (so the Z3801A is blissfully unaware). _______________________________________________ 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.