Hi I think the big issue with two receivers is if one of them powers down and the other stays up. Then you try to back feed the one that's power down. That may or may not be good for it's health. I'd hope there's a diode or something like a diode in the DC path to protect it. It would be pretty easy to double check.
Bob -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dan Rae Sent: Wednesday, January 27, 2010 12:28 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] HP 58516A GPS distribution amplifier information Bob Camp wrote: > Hi > > Has anybody torn into one to see how easy/hard that would be? Sometimes HP's > construction techniques are not very "hacker friendly".. > Bob, I had to do that because my 8 way version came from the swap meet fried ( it was only $5). The circuitry inside is very obvious since it is all surface mount. > Since you probably will have multiple GPS's on the gizmo (why have it > otherwise...) Leaving the 200 ohm DC resistors in place does not sound like > a problem. Maybe you short out two of the DC blocks rather than just one. > > Converting it to be powered from the No 1 output is easy, but you do NOT want to try to power the antenna from two outputs. Unless you want a schizoid divider. Dan _______________________________________________ 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. _______________________________________________ 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.
