Re: [time-nuts] HP Z3805A com port and monitoring questions
Tom, It looks like they have a pForth interpreter running in there under PSOS: http://code.google.com/p/pforth/. Is there a mechanism to switch from SCPI to the Forth interpreter? david 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. Hi Bob, I'm glad you asked. True, the Trimble TSIP binary command set lets you fiddle and the HP SCPI command set is much easier to use but more limited by comparison. But there's also a rich under-the-hood layer on the HP units. Spend some time with this file and you'll see what I mean: http://leapsecond.com/museum/z3801a/z3801a-bin.txt I explored the functionality in some detail during my hp GPSDO DAC dither investigation some years ago. Contact me offline. /tvb ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
On 10/22/2012 07:13 AM, Tom Van Baak wrote: 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. Hi Bob, I'm glad you asked. True, the Trimble TSIP binary command set lets you fiddle and the HP SCPI command set is much easier to use but more limited by comparison. But there's also a rich under-the-hood layer on the HP units. Spend some time with this file and you'll see what I mean: http://leapsecond.com/museum/z3801a/z3801a-bin.txt I explored the functionality in some detail during my hp GPSDO DAC dither investigation some years ago. Contact me offline. I spend time to reverse engineer it, and there is a whole bunch of hidden features which isn't in the documentation. Among others, you can get the list of the pSOS processes. There's also a pForth in there, so if you kick the right escape sequence you get into a Forth prompt, but I don't remember how much of the inner gut you get through it. There is *MUCH* more under the Z38xx hood! I would need to have pSOS manuals for the 68k variant to get further. The Trimble approach is a tuneable PI-based PLL. Nothing wrong with that. HP went for the Smart Clock approach out of NIST. The Trimble approach is a platform where the openness allowed for the customer to adapt to its application (and alternative oscillators) while the HP approach was to achieve a well-engineered solution. What Trimble did right is that they tuned up the GPS receivers oscillator while HP spent more on the control algorithms. It's not all, but a quick stab at the differences. Cheers, Magnus ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
David, On 10/22/2012 08:07 AM, David Hooke wrote: Tom, It looks like they have a pForth interpreter running in there under PSOS: http://code.google.com/p/pforth/. That's not the pForth implementation in there I beleive. It's pretty close thought. Is there a mechanism to switch from SCPI to the Forth interpreter? Yes. I did reverse engineer that a few years back. It will take some time to recover. Cheers, Magnus ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
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. Hi Bob, I'm glad you asked. True, the Trimble TSIP binary command set lets you fiddle and the HP SCPI command set is much easier to use but more limited by comparison. But there's also a rich under-the-hood layer on the HP units. Spend some time with this file and you'll see what I mean: http://leapsecond.com/museum/z3801a/z3801a-bin.txt I explored the functionality in some detail during my hp GPSDO DAC dither investigation some years ago. Contact me offline. /tvb ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
On Thu, Oct 18, 2012 at 12:47:30AM -0500, Edgardo Molina wrote: Dear David, Yes, I bought the same unit as you. I will come back to you tomorrow with some serial number information. I found mine is a DTE with TXD on pin 2... RXD on pin 3. Seems to like 9600,8,n,1 Have it working under a XP virtual machine on this laptop with the K8CU GPS receiver control program. Seems to work OK... no stats on performance yet. Mine has a Motorola 6 channel GPS rx in it - not a Furuno 16 channel. In the same shipment I also ordered one of the Samsung branded Symmetricom GPSes that does have the Furuno 16 channel receiver. K8CU GPSCON reports it has a GT-80 and shows 16 channels. It has a Symmetricom OCXO, looks MTIish... but not MTI. Mounted on a doubler board - outputs 10 MHz. Looking inside the receiver is a Furuno GT8031F. I'm sort of wondering if I could upgrade the GPS in my close to NOS HP z3805 box (would obviously require using the Samsung version of the firmware) from the Samsung box... not clear how much (other than TRIAM and WAAS) that might buy me or whether it would be worth it. Though I am sure you know all this, you certainly should be able to find the port pins with a DVM or scope - mine outputs about -8 volts on TXD and RXD floats about 0.2 volts positive. I did find I need a null modem cable to connect it up to a regular serial port (for this test a keyspan HS-19 USB serial port). I'm not exactly sure what Said Jackson has and sings the praises of. Fluke.l has been selling a few Samsungs and has one advertised that I guess is similar to mine but with an explicit MTI 260. I presume Said has units with the 10811-60165 rather than the MTI-260... I'm curious which oscillator he is finding those stability and phase noise specs on - I'm looking to upgrade the reference to some microwave LO chains and would like a nice box with that performance. I'm not sure when he bought his or what age they are. Apparently some of the HP branked z3805s must have had the Furuno receiver module. There is also tommy_chou who has some Samsung z8505As with the 10811 DOCXO... not sure what GPS these have. Appear to be 3 sellers with similar ex-Korea CDMA stuff... tommy_chou, our familiar fluke.1 and yixunhk. you are able to connect to your unit, please advise. None of the combinations I got in past emails worked. It must be cable or serial port, or blame it on the operator. I will update this thread with more information tomorrow. I have found the obvious pilot error issues with things like hyperterminal - the box should respond to a *CLS command with scpi and to an *IDN? command with the serial number. I did find (silly me) that hyperterminal defaults to DCD flow control on and you have to say no flow control before it will see anything from the ports on the box. This is because DCD comes out off with the Null modem cable I was using. Basic stuff. I will be getting new toys to play around during the weekend. I will comment in a separate thread as soon as they are delivered to me. I wish to correspond with someone having the same equipment nowadays ; ) -- Dave Emery N1PRE/AE, d...@dieconsulting.com DIE Consulting, Weston, Mass 02493 An empty zombie mind with a forlorn barely readable weatherbeaten 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in celebration of what could have been, but wasn't and is not to be now either. ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
On Sun, Oct 14, 2012 at 03:15:53PM -0700, Said Jackson wrote: I believe Edgardo bought the reprogrammed 58503A unit (was a Z3805A before) from Ebay. I have the same units recently purchased from yinxhu(sp?) on Ebay and Edgardo just confirmed these are indeed 16 channel units with true 10811 Docxos. I just bought one from yinuxhk based on your comments last weekend and it arrived today. Has one RS-232 port and two 10 MHz and two PPS. XLR 24 volt power connector. Made in Korea, marked HP Z3805A std. In very good shape. Seems like almost new old stock. HP DOCXO. Seems rather old based on serial number, serial is 3625Ax which would be 1996 if IIRC. I'm pretty sure what Edgardo bought exactly. Are yours this exact version and what age are they (from the serial number) ? -- Dave Emery N1PRE/AE, d...@dieconsulting.com DIE Consulting, Weston, Mass 02493 An empty zombie mind with a forlorn barely readable weatherbeaten 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in celebration of what could have been, but wasn't and is not to be now either. ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
Dear David, Yes, I bought the same unit as you. I will come back to you tomorrow with some serial number information. I am starting to think my serial cable is bad. I can't connect to any of my two units! Both of them have been locked to GPS signals perfectly. Shame on me… I just returned from CENAM and I am very, very tired. If you are able to connect to your unit, please advise. None of the combinations I got in past emails worked. It must be cable or serial port, or blame it on the operator. I will update this thread with more information tomorrow. I will be getting new toys to play around during the weekend. I will comment in a separate thread as soon as they are delivered to me. I wish to correspond with someone having the same equipment nowadays ; ) Thanks. Best regards and good night! 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 17, 2012, at 10:33 PM, David I. Emery d...@dieconsulting.com wrote: On Sun, Oct 14, 2012 at 03:15:53PM -0700, Said Jackson wrote: I believe Edgardo bought the reprogrammed 58503A unit (was a Z3805A before) from Ebay. I have the same units recently purchased from yinxhu(sp?) on Ebay and Edgardo just confirmed these are indeed 16 channel units with true 10811 Docxos. I just bought one from yinuxhk based on your comments last weekend and it arrived today. Has one RS-232 port and two 10 MHz and two PPS. XLR 24 volt power connector. Made in Korea, marked HP Z3805A std. In very good shape. Seems like almost new old stock. HP DOCXO. Seems rather old based on serial number, serial is 3625Ax which would be 1996 if IIRC. I'm pretty sure what Edgardo bought exactly. Are yours this exact version and what age are they (from the serial number) ? -- Dave Emery N1PRE/AE, d...@dieconsulting.com DIE Consulting, Weston, Mass 02493 An empty zombie mind with a forlorn barely readable weatherbeaten 'For Rent' sign still vainly flapping outside on the weed encrusted pole - in celebration of what could have been, but wasn't and is not to be now either. ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
On 10/14/2012 10:43 PM, Ulrich Bangert wrote: There's another telco model that has an MTI 260 oscillator, that I think was manufactured in Korea but does not have the Samsung logo on the front. I don't know much about that one. I do own a Z3805 WITH the Samsung logo on the front AND WITH a MTI 260 inside. Regards Ulrich Bangert Me too -- same description of Z3805. For some reason the output of that 3805 seems a bit cleaner (in PN) than my Z3816A which also has an MTI 260 oscillator. BTW, Ulrich, I use your software as the main monitor for both. Thanks for all your work! ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
Edgardo, Pretty sure it was 9600 8N1 no flow control. Came right up in GPSCon.. Maybe its your cable, I used the cable that was shipped to me with the unit. I did have to manually initiate the auto survey, so comms are important.. Bye Said Sent From iPhone On Oct 14, 2012, at 21:36, Edgardo Molina xe1...@amsat.org wrote: Dear Said, I am having a very hard time trying to guess the communication port configuration of the HP Z3805A. I am trying with different port settings to match the PC and using different monitor and control programs. The afternoon was not that fruitful regarding this. Is there a chance you have the default port configuration for the Z3805A so I can match my PC serial port configuration? I might be unavailable to respond to you tomorrow during the day, as I will be at Queretaro with restricted access to the Internet. Despite this I will be able to read my mail, not respond to it. Hope you don't mind. Your kind help is always welcome. Thanks. 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. On Oct 14, 2012, at 11:05 PM, saidj...@aol.com wrote: Hi Edgardo, I think the Z3805A and 58503A are identical, except in the rubber bumpers, maybe the power supply voltage setting, and the ID string.. I don't really care, the three units I have perform much better than anything else I have, so that satisfies my requirements.. In fact one of the units' ADEV can only be qualified by the BVA 8600 o scillator I have, and I don't know if I am measuring the BVA performance or the 58503A because I am measuring right at the specification of the BVA unit.. Wish I had two BVA's :) bye, Said In a message dated 10/14/2012 15:41:25 Pacific Daylight Time, xe1...@amsat.org writes: Derived question: Will I get better GPSDO performance if I use a 58503A receiver? Or do you think our units match those 58503A GPSDOs out there? Again, thanks to everybody who helped me to figure out about my receivers and their inner workings. As always, you all made my day. Best regards, Edgardo Molina Dirección IPTEL ___ 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. ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
you can also preset the receiver to the factory settings: :SYST:PRESET for the SCPI command reference you can see the manual: www.leapsecond.com/museum/*hp58503a*/097-58503-13-iss-1.pdf On Mon, Oct 15, 2012 at 2:45 PM, Said Jackson saidj...@aol.com wrote: Edgardo, Pretty sure it was 9600 8N1 no flow control. Came right up in GPSCon.. Maybe its your cable, I used the cable that was shipped to me with the unit. I did have to manually initiate the auto survey, so comms are important.. Bye Said Sent From iPhone On Oct 14, 2012, at 21:36, Edgardo Molina xe1...@amsat.org wrote: Dear Said, I am having a very hard time trying to guess the communication port configuration of the HP Z3805A. I am trying with different port settings to match the PC and using different monitor and control programs. The afternoon was not that fruitful regarding this. Is there a chance you have the default port configuration for the Z3805A so I can match my PC serial port configuration? I might be unavailable to respond to you tomorrow during the day, as I will be at Queretaro with restricted access to the Internet. Despite this I will be able to read my mail, not respond to it. Hope you don't mind. Your kind help is always welcome. Thanks. 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. On Oct 14, 2012, at 11:05 PM, saidj...@aol.com wrote: Hi Edgardo, I think the Z3805A and 58503A are identical, except in the rubber bumpers, maybe the power supply voltage setting, and the ID string.. I don't really care, the three units I have perform much better than anything else I have, so that satisfies my requirements.. In fact one of the units' ADEV can only be qualified by the BVA 8600 o scillator I have, and I don't know if I am measuring the BVA performance or the 58503A because I am measuring right at the specification of the BVA unit.. Wish I had two BVA's :) bye, Said In a message dated 10/14/2012 15:41:25 Pacific Daylight Time, xe1...@amsat.org writes: Derived question: Will I get better GPSDO performance if I use a 58503A receiver? Or do you think our units match those 58503A GPSDOs out there? Again, thanks to everybody who helped me to figure out about my receivers and their inner workings. As always, you all made my day. Best regards, Edgardo Molina Dirección IPTEL ___ 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. ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
Dear Said, Thank you! I will try it as soon as I return home from Queretaro. I am having such a wonderful time with the NIST and CENAM teams! 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. On Oct 15, 2012, at 7:45 AM, Said Jackson saidj...@aol.com wrote: Edgardo, Pretty sure it was 9600 8N1 no flow control. Came right up in GPSCon.. Maybe its your cable, I used the cable that was shipped to me with the unit. I did have to manually initiate the auto survey, so comms are important.. Bye Said Sent From iPhone On Oct 14, 2012, at 21:36, Edgardo Molina xe1...@amsat.org wrote: Dear Said, I am having a very hard time trying to guess the communication port configuration of the HP Z3805A. I am trying with different port settings to match the PC and using different monitor and control programs. The afternoon was not that fruitful regarding this. Is there a chance you have the default port configuration for the Z3805A so I can match my PC serial port configuration? I might be unavailable to respond to you tomorrow during the day, as I will be at Queretaro with restricted access to the Internet. Despite this I will be able to read my mail, not respond to it. Hope you don't mind. Your kind help is always welcome. Thanks. 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. On Oct 14, 2012, at 11:05 PM, saidj...@aol.com wrote: Hi Edgardo, I think the Z3805A and 58503A are identical, except in the rubber bumpers, maybe the power supply voltage setting, and the ID string.. I don't really care, the three units I have perform much better than anything else I have, so that satisfies my requirements.. In fact one of the units' ADEV can only be qualified by the BVA 8600 o scillator I have, and I don't know if I am measuring the BVA performance or the 58503A because I am measuring right at the specification of the BVA unit.. Wish I had two BVA's :) bye, Said In a message dated 10/14/2012 15:41:25 Pacific Daylight Time, xe1...@amsat.org writes: Derived question: Will I get better GPSDO performance if I use a 58503A receiver? Or do you think our units match those 58503A GPSDOs out there? Again, thanks to everybody who helped me to figure out about my receivers and their inner workings. As always, you all made my day. Best regards, Edgardo Molina Dirección IPTEL ___ 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. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to
Re: [time-nuts] HP Z3805A com port and monitoring questions
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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
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 -- 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
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 j...@febo.com 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 -- 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. ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
Dear Azelio, Thank you. I left the receivers running since yesterday and they are still solid lock state. I will measure pin 2 as you kindly stated. I will come back with the results. Thank you for pointing out this test. You are always willing to help! Kind 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. On Oct 14, 2012, at 7:47 AM, Azelio Boriani azelio.bori...@screen.it wrote: 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. ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
Dear John, Very interesting. I haven't had the time to compare the Samsung branded units with the typical HP units. Mine is the later. It only has one communications port, plus 2x10 MHz and 2x 1PPS. As soon as I am done with the late family breakfast I will do some testing and let you know what I find. How does the oscillators from the Samsung units compare to the HP units? Are the Samsung units superior in any sense? Both have the same GPS receiver/number of channels? Thank you for opening my curiosity regarding this GPSDO model. Best 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. On Oct 14, 2012, at 8:23 AM, John Ackermann N8UR j...@febo.com 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 -- 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
Re: [time-nuts] HP Z3805A com port and monitoring questions
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 li...@rtty.us 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 j...@febo.com 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
Re: [time-nuts] HP Z3805A com port and monitoring questions
Dear Chuck, Now it has been nice to put a face to a name (at least electronically). I completed the installation of your software and as soon as I determine the class of communication port my GPSDOs have, I will comment back to you my experiences with your monitor. Installation was a breeze. I like the idea of running several instances of it for different boxes. It is interesting that most of the replies now regarding the Z3805A are referred to the Samsung model bearing two communication ports. Now I am not sure if my units purchase was the best decision at that time. I will wait on comments regarding the differences in design and performance for the variants related to the Z3805A model. Just to follow up a little bit on my previous posting. I used individual Symmetricom antennas and transmission lines for this HP Z3805 setup. Still using the HP 2 to 1 GPS splitter to feed my pair of Truetime GPS time and frequency receivers. Will have to conduct tests and measurements according to all the interesting feedback I got during the last days. I lack a good variety of instruments. I will try to do my best with the ones I have in hand. A Proligix GPIB interfase is on its way to me. Thank you. 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. On Oct 14, 2012, at 10:05 AM, BD Systems Inc. bdsy...@yahoo.com wrote: The Z3805A has two serial ports, both of which are RS-232. Serial Port 2 broadcasts time of day only and will not accept scpi commands. Serial Port 1 shoudl be used for scpi control. Chuck Zabilski BD Systems, Inc. From: time-nuts-requ...@febo.com time-nuts-requ...@febo.com To: time-nuts@febo.com Sent: Saturday, October 13, 2012 11:31 PM Subject: time-nuts Digest, Vol 99, Issue 62 Send time-nuts mailing list submissions to time-nuts@febo.com To subscribe or unsubscribe via the World Wide Web, visit https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts or, via email, send a message with subject or body 'help' to time-nuts-requ...@febo.com You can reach the person managing the list at time-nuts-ow...@febo.com When replying, please edit your Subject line so it is more specific than Re: Contents of time-nuts digest... Today's Topics: 1. Re: HP 10811A failure (gandal...@aol.com) 2. Re: PRS10 dying from old age... (paul swed) 3. Re: HP 10811A failure (Adrian) 4. Re: HP 10811A failure (gandal...@aol.com) 5. HP Z3805A com port and monitoring questions (Edgardo Molina) 6. Re: PRS10 dying from old age... (Magnus Danielson) 7. Seistek pn3048 (David Hooke) -- Message: 1 Date: Sat, 13 Oct 2012 16:31:24 -0400 (EDT) From: gandal...@aol.com To: time-nuts@febo.com Subject: Re: [time-nuts] HP 10811A failure Message-ID: e24c.65d0a055.3dab2...@aol.com Content-Type: text/plain; charset=US-ASCII Perhaps a silly question, but as I get the impression that both seem to have failed simultaneously with the same fault I'm just wondering if you're sure it isn't what you're checking them with that's developed a problem? Regards Nigel GM8PZR In a message dated 13/10/2012 13:52:46 GMT Daylight Time, rfn...@arcor.de writes: Hi All, both of my double oven 10811A's have been running flawlessly until now when I noticed that the output power has dropped by about 3 dB (measures only 4...4.5 dBm at 50 Ohm load), and the noise floor has gone up by about 20 dB, while the frequency is still spot on. I used them for various mesurements, so I can unfortunately not remember what might have caused the failure. Only the 12V linear lab power supply that fed the heaters had developed a completely dead filter cap, so the feeding voltage was a 100 Hz sawtooth rather than DC. The heaters appear to be still working though. I'm only using the internal heater. They draw some 700 mA at power up and drop to around 150
Re: [time-nuts] HP Z3805A com port and monitoring questions
Hi Edgardo -- I don't know a lot about the Z3805 variations other than what's on fluke.l's site, which can be a bit confusing. All were made by (for) HP/Agilent/Symmetricom, but there were apparently at least two official variations. Mine is the Samsung version, which has the same 10811A double oven as the Z3801, and a 16 channel Furuno GPS, 2 x 10 MHz and 2 x 1 PPS, and dual comm ports. It's still aging in, but it seems to perform about the same as my older Z3801A, with stability below 1e12 from 1 second on out. There's another telco model that has an MTI 260 oscillator, that I think was manufactured in Korea but does not have the Samsung logo on the front. I don't know much about that one. Then there's the one that's boxed up like a 58503A bench unit, which I think is not directly from HP/Agilent/Symmetricom, but is a telco unit repackaged by someone in China. I'm not sure what's in there. One of the ones on eBay right now says that it has a 6 channel receiver, and was upgraded by us which the feature is the same as 58503A. Good luck figuring out what's in that one... (by the way, none of the current listings are from fluke.l) John Edgardo Molina said the following on 10/14/2012 12:29 PM: Dear John, Very interesting. I haven't had the time to compare the Samsung branded units with the typical HP units. Mine is the later. It only has one communications port, plus 2x10 MHz and 2x 1PPS. As soon as I am done with the late family breakfast I will do some testing and let you know what I find. How does the oscillators from the Samsung units compare to the HP units? Are the Samsung units superior in any sense? Both have the same GPS receiver/number of channels? Thank you for opening my curiosity regarding this GPSDO model. Best 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. On Oct 14, 2012, at 8:23 AM, John Ackermann N8UR j...@febo.com 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
Re: [time-nuts] HP Z3805A com port and monitoring questions
Dear John, Thank you for your explanation on the Z3805A models. Mine is identical to the 58305A. Same case, same form factor, same rubber guard ends. HP logos and design all around. I haven't opened them yet. They still have calibration seals on top of the screw head case. As I find time to do it. I will let you know about the inner workings. I will take a look at the current online offerings to also see if they match my units. Thanks again. 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. On Oct 14, 2012, at 12:24 PM, John Ackermann N8UR j...@febo.com wrote: Hi Edgardo -- I don't know a lot about the Z3805 variations other than what's on fluke.l's site, which can be a bit confusing. All were made by (for) HP/Agilent/Symmetricom, but there were apparently at least two official variations. Mine is the Samsung version, which has the same 10811A double oven as the Z3801, and a 16 channel Furuno GPS, 2 x 10 MHz and 2 x 1 PPS, and dual comm ports. It's still aging in, but it seems to perform about the same as my older Z3801A, with stability below 1e12 from 1 second on out. There's another telco model that has an MTI 260 oscillator, that I think was manufactured in Korea but does not have the Samsung logo on the front. I don't know much about that one. Then there's the one that's boxed up like a 58503A bench unit, which I think is not directly from HP/Agilent/Symmetricom, but is a telco unit repackaged by someone in China. I'm not sure what's in there. One of the ones on eBay right now says that it has a 6 channel receiver, and was upgraded by us which the feature is the same as 58503A. Good luck figuring out what's in that one... (by the way, none of the current listings are from fluke.l) John Edgardo Molina said the following on 10/14/2012 12:29 PM: Dear John, Very interesting. I haven't had the time to compare the Samsung branded units with the typical HP units. Mine is the later. It only has one communications port, plus 2x10 MHz and 2x 1PPS. As soon as I am done with the late family breakfast I will do some testing and let you know what I find. How does the oscillators from the Samsung units compare to the HP units? Are the Samsung units superior in any sense? Both have the same GPS receiver/number of channels? Thank you for opening my curiosity regarding this GPSDO model. Best 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. On Oct 14, 2012, at 8:23 AM, John Ackermann N8UR j...@febo.com 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
Re: [time-nuts] HP Z3805A com port and monitoring questions
Dear John, I just opened one box. Here is what I found inside: HP-10811-60165 double oven oscillator Furuno 16 Ch GPS receiver Now I will check if communications port is either RS-232 or RS-422 as per Azelio advise. Once done, I will try Chuck's monitoring and command software. My wife and kids are getting impatient. Ringing my lab's doorbell. Lunch time! We're going some sushi place. The afternoon is mine to continue testing and finishing my thesis translation. I am fortunate that tomorrow Dr. Levine is giving some advise on it at CENAM. Until then… Cheers! 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 12:24 PM, John Ackermann N8UR j...@febo.com wrote: Hi Edgardo -- I don't know a lot about the Z3805 variations other than what's on fluke.l's site, which can be a bit confusing. All were made by (for) HP/Agilent/Symmetricom, but there were apparently at least two official variations. Mine is the Samsung version, which has the same 10811A double oven as the Z3801, and a 16 channel Furuno GPS, 2 x 10 MHz and 2 x 1 PPS, and dual comm ports. It's still aging in, but it seems to perform about the same as my older Z3801A, with stability below 1e12 from 1 second on out. There's another telco model that has an MTI 260 oscillator, that I think was manufactured in Korea but does not have the Samsung logo on the front. I don't know much about that one. Then there's the one that's boxed up like a 58503A bench unit, which I think is not directly from HP/Agilent/Symmetricom, but is a telco unit repackaged by someone in China. I'm not sure what's in there. One of the ones on eBay right now says that it has a 6 channel receiver, and was upgraded by us which the feature is the same as 58503A. Good luck figuring out what's in that one... (by the way, none of the current listings are from fluke.l) John Edgardo Molina said the following on 10/14/2012 12:29 PM: Dear John, Very interesting. I haven't had the time to compare the Samsung branded units with the typical HP units. Mine is the later. It only has one communications port, plus 2x10 MHz and 2x 1PPS. As soon as I am done with the late family breakfast I will do some testing and let you know what I find. How does the oscillators from the Samsung units compare to the HP units? Are the Samsung units superior in any sense? Both have the same GPS receiver/number of channels? Thank you for opening my curiosity regarding this GPSDO model. Best 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. On Oct 14, 2012, at 8:23 AM, John Ackermann N8UR j...@febo.com 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
Re: [time-nuts] HP Z3805A com port and monitoring questions
John, I believe Edgardo bought the reprogrammed 58503A unit (was a Z3805A before) from Ebay. I have the same units recently purchased from yinxhu(sp?) on Ebay and Edgardo just confirmed these are indeed 16 channel units with true 10811 Docxos. Explains why they work so great.. Edgardo, I use GPSCon with these, and mine are all Rs232.. Mine achieve performance in the xE-013 and noise below -162dBc (Thunderbolt eat your heart out :). I believe there is no better GPSDO out there presently, much less available for sale and at those prices. PN at 1Hz is better than -105dBc.. I regularly get below 1us predicted drift as shown by the syst:stat? command. Bye, Said On Oct 14, 2012, at 10:24, John Ackermann N8UR j...@febo.com wrote: Hi Edgardo -- I don't know a lot about the Z3805 variations other than what's on fluke.l's site, which can be a bit confusing. All were made by (for) HP/Agilent/Symmetricom, but there were apparently at least two official variations. Mine is the Samsung version, which has the same 10811A double oven as the Z3801, and a 16 channel Furuno GPS, 2 x 10 MHz and 2 x 1 PPS, and dual comm ports. It's still aging in, but it seems to perform about the same as my older Z3801A, with stability below 1e12 from 1 second on out. There's another telco model that has an MTI 260 oscillator, that I think was manufactured in Korea but does not have the Samsung logo on the front. I don't know much about that one. Then there's the one that's boxed up like a 58503A bench unit, which I think is not directly from HP/Agilent/Symmetricom, but is a telco unit repackaged by someone in China. I'm not sure what's in there. One of the ones on eBay right now says that it has a 6 channel receiver, and was upgraded by us which the feature is the same as 58503A. Good luck figuring out what's in that one... (by the way, none of the current listings are from fluke.l) John Edgardo Molina said the following on 10/14/2012 12:29 PM: Dear John, Very interesting. I haven't had the time to compare the Samsung branded units with the typical HP units. Mine is the later. It only has one communications port, plus 2x10 MHz and 2x 1PPS. As soon as I am done with the late family breakfast I will do some testing and let you know what I find. How does the oscillators from the Samsung units compare to the HP units? Are the Samsung units superior in any sense? Both have the same GPS receiver/number of channels? Thank you for opening my curiosity regarding this GPSDO model. Best 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. On Oct 14, 2012, at 8:23 AM, John Ackermann N8UR j...@febo.com 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
Re: [time-nuts] HP Z3805A com port and monitoring questions
Dear Said, Thank you. It seems I ended up buying the same units and from the same provider. I recall you mentioning before I got mine about the availability of those models in the Asia-Pacific region. That explains clearly the capabilities and quality of the units. I just ran the tests Azelio suggested and in fact it is an RS-232 port. Thank you also for confirming the ports are RS-232 from your side. Now I am connecting one of the receivers to the PC and start playing around with it. Derived question: Will I get better GPSDO performance if I use a 58503A receiver? Or do you think our units match those 58503A GPSDOs out there? Again, thanks to everybody who helped me to figure out about my receivers and their inner workings. As always, you all made my day. Best 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. On Oct 14, 2012, at 5:15 PM, Said Jackson saidj...@aol.com wrote: John, I believe Edgardo bought the reprogrammed 58503A unit (was a Z3805A before) from Ebay. I have the same units recently purchased from yinxhu(sp?) on Ebay and Edgardo just confirmed these are indeed 16 channel units with true 10811 Docxos. Explains why they work so great.. Edgardo, I use GPSCon with these, and mine are all Rs232.. Mine achieve performance in the xE-013 and noise below -162dBc (Thunderbolt eat your heart out :). I believe there is no better GPSDO out there presently, much less available for sale and at those prices. PN at 1Hz is better than -105dBc.. I regularly get below 1us predicted drift as shown by the syst:stat? command. Bye, Said On Oct 14, 2012, at 10:24, John Ackermann N8UR j...@febo.com wrote: Hi Edgardo -- I don't know a lot about the Z3805 variations other than what's on fluke.l's site, which can be a bit confusing. All were made by (for) HP/Agilent/Symmetricom, but there were apparently at least two official variations. Mine is the Samsung version, which has the same 10811A double oven as the Z3801, and a 16 channel Furuno GPS, 2 x 10 MHz and 2 x 1 PPS, and dual comm ports. It's still aging in, but it seems to perform about the same as my older Z3801A, with stability below 1e12 from 1 second on out. There's another telco model that has an MTI 260 oscillator, that I think was manufactured in Korea but does not have the Samsung logo on the front. I don't know much about that one. Then there's the one that's boxed up like a 58503A bench unit, which I think is not directly from HP/Agilent/Symmetricom, but is a telco unit repackaged by someone in China. I'm not sure what's in there. One of the ones on eBay right now says that it has a 6 channel receiver, and was upgraded by us which the feature is the same as 58503A. Good luck figuring out what's in that one... (by the way, none of the current listings are from fluke.l) John Edgardo Molina said the following on 10/14/2012 12:29 PM: Dear John, Very interesting. I haven't had the time to compare the Samsung branded units with the typical HP units. Mine is the later. It only has one communications port, plus 2x10 MHz and 2x 1PPS. As soon as I am done with the late family breakfast I will do some testing and let you know what I find. How does the oscillators from the Samsung units compare to the HP units? Are the Samsung units superior in any sense? Both have the same GPS receiver/number of channels? Thank you for opening my curiosity regarding this GPSDO model. Best 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
Re: [time-nuts] HP Z3805A com port and monitoring questions
Just cuious, of the two 58503A versions that yixunhk sells (Z3801A and Z3805A), which one has the better performance? I see that the Z3805A version has two 10 MHz outputs and one PPS. Joe Gray W5JG On Sun, Oct 14, 2012 at 4:15 PM, Said Jackson saidj...@aol.com wrote: John, I believe Edgardo bought the reprogrammed 58503A unit (was a Z3805A before) from Ebay. I have the same units recently purchased from yinxhu(sp?) on Ebay and Edgardo just confirmed these are indeed 16 channel units with true 10811 Docxos. Explains why they work so great.. Edgardo, I use GPSCon with these, and mine are all Rs232.. Mine achieve performance in the xE-013 and noise below -162dBc (Thunderbolt eat your heart out :). I believe there is no better GPSDO out there presently, much less available for sale and at those prices. PN at 1Hz is better than -105dBc.. I regularly get below 1us predicted drift as shown by the syst:stat? command. Bye, Said On Oct 14, 2012, at 10:24, John Ackermann N8UR j...@febo.com wrote: Hi Edgardo -- I don't know a lot about the Z3805 variations other than what's on fluke.l's site, which can be a bit confusing. All were made by (for) HP/Agilent/Symmetricom, but there were apparently at least two official variations. Mine is the Samsung version, which has the same 10811A double oven as the Z3801, and a 16 channel Furuno GPS, 2 x 10 MHz and 2 x 1 PPS, and dual comm ports. It's still aging in, but it seems to perform about the same as my older Z3801A, with stability below 1e12 from 1 second on out. There's another telco model that has an MTI 260 oscillator, that I think was manufactured in Korea but does not have the Samsung logo on the front. I don't know much about that one. Then there's the one that's boxed up like a 58503A bench unit, which I think is not directly from HP/Agilent/Symmetricom, but is a telco unit repackaged by someone in China. I'm not sure what's in there. One of the ones on eBay right now says that it has a 6 channel receiver, and was upgraded by us which the feature is the same as 58503A. Good luck figuring out what's in that one... (by the way, none of the current listings are from fluke.l) John Edgardo Molina said the following on 10/14/2012 12:29 PM: Dear John, Very interesting. I haven't had the time to compare the Samsung branded units with the typical HP units. Mine is the later. It only has one communications port, plus 2x10 MHz and 2x 1PPS. As soon as I am done with the late family breakfast I will do some testing and let you know what I find. How does the oscillators from the Samsung units compare to the HP units? Are the Samsung units superior in any sense? Both have the same GPS receiver/number of channels? Thank you for opening my curiosity regarding this GPSDO model. Best 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. On Oct 14, 2012, at 8:23 AM, John Ackermann N8UR j...@febo.com 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
Re: [time-nuts] HP Z3805A com port and monitoring questions
I think the Z3801A has the 6 channel receiver, the Z3805A seems to have the 16 channel GPS. Otherwise very similar I think.. both have the 10811 DOCXO, and very similar looking PCB's.. Rick, do you know of any other differences by any chance? Said In a message dated 10/14/2012 16:20:47 Pacific Daylight Time, jg...@zianet.com writes: Just cuious, of the two 58503A versions that yixunhk sells (Z3801A and Z3805A), which one has the better performance? I see that the Z3805A version has two 10 MHz outputs and one PPS. Joe Gray W5JG ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
Hi Edgardo, I think the Z3805A and 58503A are identical, except in the rubber bumpers, maybe the power supply voltage setting, and the ID string.. I don't really care, the three units I have perform much better than anything else I have, so that satisfies my requirements.. In fact one of the units' ADEV can only be qualified by the BVA 8600 o scillator I have, and I don't know if I am measuring the BVA performance or the 58503A because I am measuring right at the specification of the BVA unit.. Wish I had two BVA's :) bye, Said In a message dated 10/14/2012 15:41:25 Pacific Daylight Time, xe1...@amsat.org writes: Derived question: Will I get better GPSDO performance if I use a 58503A receiver? Or do you think our units match those 58503A GPSDOs out there? Again, thanks to everybody who helped me to figure out about my receivers and their inner workings. As always, you all made my day. Best regards, Edgardo Molina Dirección IPTEL ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
Dear Said, I am having a very hard time trying to guess the communication port configuration of the HP Z3805A. I am trying with different port settings to match the PC and using different monitor and control programs. The afternoon was not that fruitful regarding this. Is there a chance you have the default port configuration for the Z3805A so I can match my PC serial port configuration? I might be unavailable to respond to you tomorrow during the day, as I will be at Queretaro with restricted access to the Internet. Despite this I will be able to read my mail, not respond to it. Hope you don't mind. Your kind help is always welcome. Thanks. 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. On Oct 14, 2012, at 11:05 PM, saidj...@aol.com wrote: Hi Edgardo, I think the Z3805A and 58503A are identical, except in the rubber bumpers, maybe the power supply voltage setting, and the ID string.. I don't really care, the three units I have perform much better than anything else I have, so that satisfies my requirements.. In fact one of the units' ADEV can only be qualified by the BVA 8600 o scillator I have, and I don't know if I am measuring the BVA performance or the 58503A because I am measuring right at the specification of the BVA unit.. Wish I had two BVA's :) bye, Said In a message dated 10/14/2012 15:41:25 Pacific Daylight Time, xe1...@amsat.org writes: Derived question: Will I get better GPSDO performance if I use a 58503A receiver? Or do you think our units match those 58503A GPSDOs out there? Again, thanks to everybody who helped me to figure out about my receivers and their inner workings. As always, you all made my day. Best regards, Edgardo Molina Dirección IPTEL ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
In fact one of the units' ADEV can only be qualified by the BVA 8600 o scillator I have, and I don't know if I am measuring the BVA performance or the 58503A because I am measuring right at the specification of the BVA unit.. Wish I had two BVA's :) bye, Said Said, If you can do without one of your best GPSDO or BVA for a week, send it up here for an accurate measurement. /tvb ___ 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.
Re: [time-nuts] HP Z3805A com port and monitoring questions
There's another telco model that has an MTI 260 oscillator, that I think was manufactured in Korea but does not have the Samsung logo on the front. I don't know much about that one. I do own a Z3805 WITH the Samsung logo on the front AND WITH a MTI 260 inside. Regards Ulrich Bangert -Ursprüngliche Nachricht- Von: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] Im Auftrag von Said Jackson Gesendet: Montag, 15. Oktober 2012 00:16 An: Discussion of precise time and frequency measurement Cc: Discussion of precise time and frequency measurement Betreff: Re: [time-nuts] HP Z3805A com port and monitoring questions John, I believe Edgardo bought the reprogrammed 58503A unit (was a Z3805A before) from Ebay. I have the same units recently purchased from yinxhu(sp?) on Ebay and Edgardo just confirmed these are indeed 16 channel units with true 10811 Docxos. Explains why they work so great.. Edgardo, I use GPSCon with these, and mine are all Rs232.. Mine achieve performance in the xE-013 and noise below -162dBc (Thunderbolt eat your heart out :). I believe there is no better GPSDO out there presently, much less available for sale and at those prices. PN at 1Hz is better than -105dBc.. I regularly get below 1us predicted drift as shown by the syst:stat? command. Bye, Said On Oct 14, 2012, at 10:24, John Ackermann N8UR j...@febo.com wrote: Hi Edgardo -- I don't know a lot about the Z3805 variations other than what's on fluke.l's site, which can be a bit confusing. All were made by (for) HP/Agilent/Symmetricom, but there were apparently at least two official variations. Mine is the Samsung version, which has the same 10811A double oven as the Z3801, and a 16 channel Furuno GPS, 2 x 10 MHz and 2 x 1 PPS, and dual comm ports. It's still aging in, but it seems to perform about the same as my older Z3801A, with stability below 1e12 from 1 second on out. There's another telco model that has an MTI 260 oscillator, that I think was manufactured in Korea but does not have the Samsung logo on the front. I don't know much about that one. Then there's the one that's boxed up like a 58503A bench unit, which I think is not directly from HP/Agilent/Symmetricom, but is a telco unit repackaged by someone in China. I'm not sure what's in there. One of the ones on eBay right now says that it has a 6 channel receiver, and was upgraded by us which the feature is the same as 58503A. Good luck figuring out what's in that one... (by the way, none of the current listings are from fluke.l) John Edgardo Molina said the following on 10/14/2012 12:29 PM: Dear John, Very interesting. I haven't had the time to compare the Samsung branded units with the typical HP units. Mine is the later. It only has one communications port, plus 2x10 MHz and 2x 1PPS. As soon as I am done with the late family breakfast I will do some testing and let you know what I find. How does the oscillators from the Samsung units compare to the HP units? Are the Samsung units superior in any sense? Both have the same GPS receiver/number of channels? Thank you for opening my curiosity regarding this GPSDO model. Best 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. On Oct 14, 2012, at 8:23 AM, John Ackermann N8UR j...@febo.com 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
