[time-nuts] Z3805A Serial Port

BD Systems Inc. bdsysco at yahoo.com
Mon Oct 15 12:43:28 UTC 2012


Edgardo, most HP GPS receivers default to 9600,N,8,1.  The Z3801A defaults to 19200,O,7, 1
 
Chuck.
 

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Sent: Sunday, October 14, 2012 11:50 PM
Subject: time-nuts Digest, Vol 99, Issue 68
  
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Today's Topics:

   1. Re: Mouser connector (shalimr9 at gmail.com)
   2. Re: Mouser connector (Joseph Gray)
   3. Re: HP Z3805A com port and monitoring questions (SAIDJACK at aol.com)
   4. Re: HP Z3805A com port and monitoring questions (SAIDJACK at aol.com)
   5. Re: HP Z3805A com port and monitoring questions (Edgardo Molina)
   6. Re: HP Z3805A com port and monitoring questions (Tom Van Baak)
   7. Re: HP Z3805A com port and monitoring questions (Ulrich Bangert)


----------------------------------------------------------------------

Message: 1
Date: Sun, 14 Oct 2012 21:18:54 -0500
From: shalimr9 at gmail.com
To: Discussion of precise time and frequency measurement
    <time-nuts at febo.com>
Subject: Re: [time-nuts] Mouser connector
Message-ID: <978ee371-a2c0-4291-a449-e768368f80e1.maildroid at localhost>
Content-Type: text/plain; charset=utf-8

Actually they were Digikey part numbers...

Didier KO4BB

Sent from my Droid Razr 4G LTE wireless tracker.



-----Original Message-----
From: Joseph Gray <jgray at zianet.com>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Sun, 14 Oct 2012 7:00 PM
Subject: [time-nuts] Mouser connector

I remember someone mentioning long ago about making GPIB cables with
ribbon cable and IDC connectors from Mouser. I can't find that
information again. What is the Mouser part number for those IDC
connectors?

Thanks,

Joe Gray
W5JG

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------------------------------

Message: 2
Date: Sun, 14 Oct 2012 20:30:37 -0600
From: Joseph Gray <jgray at zianet.com>
To: Discussion of precise time and frequency measurement
    <time-nuts at febo.com>
Subject: Re: [time-nuts] Mouser connector
Message-ID:
    <CAF7oPz2mmEmr__g=1LTw2og-gQJGtVMwOPRVZfBNH4fh-3hK5A at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

Wow, the Digikey price shot up as well. I guess I'll ebay a cable.

Joe Gray
W5JG

On Sun, Oct 14, 2012 at 8:18 PM,  <shalimr9 at gmail.com> wrote:
> Actually they were Digikey part numbers...
>
> Didier KO4BB
>
> Sent from my Droid Razr 4G LTE wireless tracker.
>
>
>
> -----Original Message-----
> From: Joseph Gray <jgray at zianet.com>
> To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
> Sent: Sun, 14 Oct 2012 7:00 PM
> Subject: [time-nuts] Mouser connector
>
> I remember someone mentioning long ago about making GPIB cables with
> ribbon cable and IDC connectors from Mouser. I can't find that
> information again. What is the Mouser part number for those IDC
> connectors?
>
> Thanks,
>
> Joe Gray
> W5JG
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
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> and follow the instructions there.
>



------------------------------

Message: 3
Date: Sun, 14 Oct 2012 23:58:01 -0400 (EDT)
From: SAIDJACK at aol.com
To: time-nuts at febo.com
Subject: Re: [time-nuts] HP Z3805A com port and monitoring questions
Message-ID: <11e4.51eccd5d.3dace3c9 at aol.com>
Content-Type: text/plain; charset="US-ASCII"

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,  
jgray at 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




------------------------------

Message: 4
Date: Mon, 15 Oct 2012 00:05:05 -0400 (EDT)
From: SAIDJACK at aol.com
To: time-nuts at febo.com
Subject: Re: [time-nuts] HP Z3805A com port and monitoring questions
Message-ID: <1384.5832c676.3dace571 at aol.com>
Content-Type: text/plain; charset="ISO-8859-1"

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,  
xe1xus at 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
Direcci?n  IPTEL



------------------------------

Message: 5
Date: Sun, 14 Oct 2012 23:36:05 -0500
From: Edgardo Molina <xe1xus at amsat.org>
To: Discussion of precise time and frequency measurement
    <time-nuts at febo.com>
Subject: Re: [time-nuts] HP Z3805A com port and monitoring questions
Message-ID: <364CA970-3DEF-42D2-986F-D4005B7BF0DB at amsat.org>
Content-Type: text/plain;    charset=iso-8859-1

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
Direcci?n IPTEL

www.iptel.net.mx

T : 55 55 55202444
M : 04455 20501854

Piensa en Bits SA de CV



Informaci?n anexa:




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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, SAIDJACK at 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,  
> xe1xus at 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
> Direcci?n  IPTEL
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.



------------------------------

Message: 6
Date: Sun, 14 Oct 2012 22:04:09 -0700
From: "Tom Van Baak" <tvb at LeapSecond.com>
To: "Discussion of precise time and frequency measurement"
    <time-nuts at febo.com>
Subject: Re: [time-nuts] HP Z3805A com port and monitoring questions
Message-ID: <4EE1633E9A684759A139231568EAF9CA at pc52>
Content-Type: text/plain;    charset="iso-8859-1"

> 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





------------------------------

Message: 7
Date: Mon, 15 Oct 2012 07:43:45 +0200
From: "Ulrich Bangert" <df6jb at ulrich-bangert.de>
To: "'Discussion of precise time and frequency measurement'"
    <time-nuts at febo.com>
Subject: Re: [time-nuts] HP Z3805A com port and monitoring questions
Message-ID: <8D82EA0D59494001AF273F55F27AF659 at athlon>
Content-Type: text/plain;    charset="utf-8"

> 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

> -----Urspr?ngliche Nachricht-----
> Von: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at 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 <jra at 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
> >> Direcci?n IPTEL
> >> 
> >> www.iptel.net.mx
> >> 
> >> T : 55 55 55202444
> >> M : 04455 20501854
> >> 
> >> Piensa en Bits SA de CV
> >> 
> >> 
> >> 
> >> Informaci?n anexa:
> >> 
> >> 
> >> 
> >> 
> >> CONFIDENCIALIDAD DE INFORMACION
> >> 
> >> Este mensaje tiene car?cter confidencial. Si usted no es el 
> >> destinarario de este mensaje, le suplicamos se lo notifique al 
> >> remitente mediante un correo electr?nico 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 prop?sito 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 <jra at 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
> >>>> Direcci?n IPTEL
> >>>> 
> >>>> www.iptel.net.mx
> >>>> 
> >>>> T : 55 55 55202444
> >>>> M : 04455 20501854
> >>>> 
> >>>> Piensa en Bits SA de CV
> >>>> 
> >>>> 
> >>>> 
> >>>> Informaci?n anexa:
> >>>> 
> >>>> 
> >>>> 
> >>>> 
> >>>> CONFIDENCIALIDAD DE INFORMACION
> >>>> 
> >>>> Este mensaje tiene car?cter confidencial. Si usted no es el 
> >>>> destinarario de este mensaje, le suplicamos se lo notifique al 
> >>>> remitente mediante un correo electr?nico 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 prop?sito 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 
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> >>>> strictly forbidden to copy it or use it for any purpose 
> or disclose 
> >>>> its contents to any third party. Thank you.
> >>>> 
> >>>> 
> >>>> 
> >>>> 
> >>>> 
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> >> 
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