My Z3805A has the trouble that the date on SATSTAT is not changed by command
(:GPS:INIT:DATE (yr,mo,day)).
Anyone can advice me for the above.
From: komnet2k Tokyo JAPAN
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komne...@yahoo.co.jp said:
My Z3805A has the trouble that the date on SATSTAT is not changed by command
(:GPS:INIT:DATE (yr,mo,day)).
Anyone can advice me for the above.
It may only work if you send the date before it locks to GPS. That is you
need to do something like:
power off
Jarl,
Thank you for your help on this. It appears that either; the CPU has a bad
output pin, some unknown command has turned the heater off, or the firmware
is programmed that way. The 10 MHz frequency had always been very 'stable',
and I didn't know there was a problem until I bought a 2nd HP
John,
I have a similar unit (probably from the same seller), advertised as
an Z3805A upgraded to the features of 58503A, whatever that is
supposed to mean.
Mine also does not get warm on top, though it appears to be providing
a decent 10 MHz output and indicates GPS lock. This is the best
Jarl, OZ9MO
Thank you for those two links! They have the information I needed, and are
very well 'hidden' on the internet.
I have had partial success. Per the work-around on www.realhamradio.com, I
pulled P2-8 on the power board up to +5V, and the outer heater came on and
is now being
I have a HP Z3805A / 58503A with a cold outer oven. I have installed another
HP 10811-60165 DOXO, and then another power board. Still, the outer oven is
not heating.
Heater resistance is ok at 19 ohm, but voltage on red wires to heater are
both at 5.0 VDC. On another (good warm) HP Z3805A,
I will be eager to see responses to this. It is similar to the behavior
I was seeing on my tested nortel unit that I purchased from the
e-place. Tried a bunch of things, new antenna, higher antenna (even
though my Z3801 worked fine on the old, before the Z3801 died) and
different power
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
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,
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
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
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
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
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
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
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
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
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:
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,
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
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
...@amsat.org
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: [time-nuts] HP Z3805A com port and monitoring questions
Message-ID: ae884c82-e444-452a-8589-c2acfb0c8...@amsat.org
Content-Type: text/plain; charset=iso-8859-1
Dear Group,
Good evening. I
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
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
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
-nuts@febo.com
Subject: [time-nuts] HP Z3805A com port and monitoring questions
Message-ID: ae884c82-e444-452a-8589-c2acfb0c8...@amsat.org
Content-Type: text/plain;charset=iso-8859-1
Dear Group,
Good evening. I bought two HP Z3805A units a few weeks ago. They were bare
units without
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
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
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
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
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
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
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
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
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
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
: [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
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
Hello Edgardo,
glad you received them well, and within 48 hours from China! Hopefully
they will work as well for you as for me.
I noticed that some of the 60Hz/120Hz artifacts can come through the power
supply into the 10MHz, so pick a power supply that has a case-ground
connection, not
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