Dear Bob, I agree. I have been playing around with two TBolts for my thesis work and they are just great. HP as some circles have stated, are plug and forget GPSDOs. Still I love the looks, construction and the fact that they match with the rest of the HP equipment here in the lab.
As I continue working on both the HP and the TBolt units, I will try to share my experiences, despite they will not be up to the level some folks here have achieved. I am moving in small steps but gaining experience and learning in the process. Always with a good attitude and looking to have some fun during the process. Thank you! 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. On Oct 14, 2012, at 8:39 AM, Bob Camp <[email protected]> wrote: > Hi > > I've been using Ulrich's software on my 3805's as well. > > Trimble and HP took different approaches on their GPSDO's. Trimble lets you > get into things and fiddle around. HP is much more a black box. I have never > seen anything that lets you "fiddle' with one of the HP units. Things like > loop gain, time constant, DAC settings that are configurable on the Trimble > are not accessible on the HP. HP only lets you do the satellite mask and > re-survey sort of stuff. You can monitor status, you just can't do much about > it... > > Bob > > On Oct 14, 2012, at 9:23 AM, John Ackermann N8UR <[email protected]> wrote: > >> On the unit I bought from fluke.l, with a "Samsung" label, there are two >> serial ports. The bottom one is the control port and is definitely RS-232. >> The top port has only three wires (TXD, RXD, SG) and I think is used for >> some sort of monitoring. >> >> I've been using Ulrich's "z38xx" software to monitor it with good success. >> >> John >> ---- >> >> Edgardo Molina said the following on 10/13/2012 10:18 PM: >>> 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 -- [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. > > > _______________________________________________ > 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.
