Use a multimeter to see if the DB25 pin 2 is -12V, if so you have a standard RS232 serial port. Then connect to it, use a USB-RS232 interface if necessary, and type SYST:STAT? you will see the status page out of the Z3805 (use 9600,N,8,1 for the serial settings).
On Sun, Oct 14, 2012 at 4:18 AM, Edgardo Molina <xe1...@amsat.org> wrote: > Dear Group, > > Good evening. I bought two HP Z3805A units a few weeks ago. They were bare > units without antenna or power supply. After struggling to find a suitable > 24V 3A noise free power supply for each of them, I mounted a couple of > Symmetricom antennas and just fired them up. > > After around 25 minutes, the GPS Lock light lighted up. As the manual for > this particular model is unobtainable in several searches through the > Internet, I found that the readily available manual for the Z3801A would > cover much of the Z3905A operation. I also got a software for monitoring > the operation from BD Systems Inc. In Colorado. Now that I am sure both are > operating and locked only by looking at the front panel lights, I would > like to ask a couple of questions regarding their communication to the PC. > > 1. Is the DB-25 serial port carrying RS-232 signals? I see the port of the > Z380A1 is different: RS-422. > 2. If the port is plain RS-232 is it possible to use a Serial to USB > adapter? I have heard about the inconsistencies that such an adapter could > cause when used with a TBolt. Should I assume this is the same case with > the Z3805A? > 3. There was once a project for building a TBolt state monitor on a 2 line > LCD screen. I own three of those monitors and they are just great. Is > there an equivalent for these HP GPS units? > > Any suggestions for the operation of these units and your ever expert and > kind advise is always welcome. You all have a nice weekend! > > Kindest regards, > > > > Edgardo Molina > Dirección IPTEL > > www.iptel.net.mx > > T : 55 55 55202444 > M : 04455 20501854 > > Piensa en Bits SA de CV > > > > Información anexa: > > > > > CONFIDENCIALIDAD DE INFORMACION > > Este mensaje tiene carácter confidencial. Si usted no es el destinarario > de este mensaje, le suplicamos se lo notifique al remitente mediante un > correo electrónico y que borre el presente mensaje y sus anexos de su > computadora sin retener una copia de los mismos. Queda estrictamente > prohibido copiar este mensaje o hacer usode el para cualquier propósito o > divulgar su en forma parcial o total su contenido. Gracias. > > > NON-DISCLOSURE OF INFORMATION > > This email is strictly confidential and may also be privileged. If you are > not the intended recipient please immediately advise the sender by replying > to this e-mail and then deleting the message and its attachments from your > computer without keeping a copy. It is strictly forbidden to copy it or use > it for any purpose or disclose its contents to any third party. Thank you. > > > > > > _______________________________________________ > 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. > _______________________________________________ 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.