Hello Paul,
thanks for info. Another list member gave me two good links: KO4BB
has the schematic of PS board (!) in
http://www.ko4bb.com/cgi-bin/manuals.pl?dir=05)_GPS_Timing/Z3801/Z3801A_Power_Supply
and there are some more info in
http://www.realhamradio.com/GPS_Frequency_Standard.htm
All this confirms my analysis, and since it works well without the
first converter I will leave it alone, as you say :-) - if you look
at the first converter schematic, it is really quite complex; and if
you power the Z3801 from 48V it has nothing to do.
Thanks to all for the good info, and thanks to Didier for hosting all
the good things.
Vy 73 - Marco IK1ODO / AI4YF
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