Check TWO things.
1.) Has the RS-232 level converter (1488/1489, MAX232, etc.) failed?
2.) What MODE is your Z3816A, SCPI? The GPSCon software places Z3816A into
SCPI.
This is discussed in K8CU’s notes, below:
K8CU Notes - HP Z3816A GPS Frequency Standard Receiver
I am getting some very peculiar behavior with the serial interface on
my GPS rcvr (Z3816A).
I have tried several computers and several different GPS utilities
(GPS-DOS2, Sat Stat, GpsCon, etc.).
To date, the only thing that works is Sat Stat on a windows 2000 computer.
I am using a Null modem
When I worked at H-P, the original H-P, Loveland instrument division the
last stage for circuit boards coming off the soldering process was a
trip through a regular home dishwasher with tap water and Calgonite. It
got ionic contamination off the boards better than anything else we
tried. I
of precise time and frequency measurement
Subject: Re: [time-nuts] Z3816A Control and Cleaning
trip through a regular home dishwasher with tap water and Calgonite.
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...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Glenn Little
Sent: Friday, January 24, 2014 1:00 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Z3816A Control and Cleaning
Tektronix used to clean their oscilloscopes in a soap and water bath
On 1/23/2014 11:30 PM, Hal Murray wrote:
Also, I seem to recall a command that can be sent by SatStat to change from
GPS time to UTC time but I can't find it in my files. Is there such a
command or am I hallucinating?
My notes for the Z3801A say:
:diag:gps:utc 1
Tek article is quite good. Time to find a power washer for my tek 2465Bs.
Maybe that will fix the memories. Not.
Regards
Paul
WB8TSL
On Fri, Jan 24, 2014 at 10:57 AM, Donald Henderickx
wa9...@sandprairie.netwrote:
On 1/23/2014 11:30 PM, Hal Murray wrote:
Also, I seem to recall a command that
and frequency measurement
Subject: Re: [time-nuts] Z3816A Control and Cleaning
I recommend against using tap water on any electronics. Use RO or distilled
water; that won't leave behind minerals when it evaporates.
Most IPA is only 70%; the balance is water. For flux removal, use 99% or
anhydrous IPA
Oops! RO is Reverse Osmosis. I incorrectly assumed that was widely
known. I've had an RO system under my kitchen sink for 30 years. Even
CostCo sells RO systems you can install yourself. There is a separate
spigot faucet on the sink for this mineral-free water.
RO systems first pass city
for.
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Donald Henderickx
Sent: Friday, January 24, 2014 9:57 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Z3816A Control and Cleaning
On 1/23/2014 11:30 PM
Larry,
Thanks for the education.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Larry McDavid
Sent: Friday, January 24, 2014 12:21 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Z3816A
I recently acquired a Z3816A as a 'spare' and it does not work reliably.
The ALARM LED sometimes comes on and sometimes doesn't. Sometimes it tracks
and locks appropriately and other times it goes into HOLDOVER. The main PCB
is very dirty and has the appearance that it has been in a humid and
Joe
Been a while. Sounds like a reasonable approach with the soap and water.
The key is not to force water into the inductors. I take soapy water and a
tooth brush it works wonders. Then dry in an oven at about 100 degrees just
to drive off the moisture. Very gentle.
I guess the other point is to
I recommend against using tap water on any electronics. Use RO or
distilled water; that won't leave behind minerals when it evaporates.
Most IPA is only 70%; the balance is water. For flux removal, use 99% or
anhydrous IPA, available at most industrial hardware stores.
And, I surely would
The main PCB is very dirty and has the appearance that it has been in a
humid and dusty environment. I am suspicious that there are some 'leakage'
issues related to this dirt and would like to wash the board. What would
the group recommend for cleaning the board?
Google for PCB cleaning
Also, I seem to recall a command that can be sent by SatStat to change from
GPS time to UTC time but I can't find it in my files. Is there such a
command or am I hallucinating?
My notes for the Z3801A say:
:diag:gps:utc 1
http://www.realhamradio.com/GPS_User_Notes.htm (undocumented)
Tektronix used to clean their oscilloscopes in a soap and water bath
in something like a dish washer.
This was published in Tek Scope V4 #4 July 1972.
I can send the pdf if interested.
Glenn
WB4UIV
At 10:13 PM 1/23/2014, you wrote:
Joe
Been a while. Sounds like a reasonable approach with the
Folks, soap and detergent are not the same thing.
Larry
On 1/23/2014 11:22 PM, Glenn Little wrote:
Tektronix used to clean their oscilloscopes in a soap and water bath in
something like a dish washer.
This was published in Tek Scope V4 #4 July 1972.
I can send the pdf if interested.
Glenn
Having a couple of p[problems with a Z3816A.
:syst:diag:log:read:all? Reports:
Log 028:20130624.10:00:00: Power on
Log 029:20130624.10:00:12: -12B is out of tolerance, value: -12.53
Log 030:20130624.10:00:12: -12C is out of tolerance, value: -12.65
Log 031:20130624.10:00:12: -12D is out of
Hi Guys,
Having finally got the time to get my Z3816A connected up to both a
power supply and antenna, I find myself with a minor issue.
It powers up just fine (minus the silly Antenna alarm, really must
add that resistor sometime...) gets GPS Lock, and I can *tell* it's
squirting stuff down
Le 25/04/2011 18:35, Iain Young a écrit :
Hi Guys,
Having finally got the time to get my Z3816A connected up to both a
power supply and antenna, I find myself with a minor issue.
It powers up just fine (minus the silly Antenna alarm, really must
add that resistor sometime...) gets GPS Lock,
Subject: Re: [time-nuts] Z3816A Serial Port Parameters
Le 25/04/2011 18:35, Iain Young a écrit :
Hi Guys,
Having finally got the time to get my Z3816A connected up to both a
power supply and antenna, I find myself with a minor issue.
It powers up just fine (minus the silly Antenna alarm
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Sent: Saturday, June 05, 2010 11:39 PM
Subject: Re: [time-nuts] Z3816a
Hi
The 1938 and 10811 share the same basic crystal. The difference between a very good and a acceptable crystal can
be an order of magnitude or more
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Robert Benward
Sent: Sunday, June 06, 2010 10:34 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Z3816a
Bob,
I agree, I suspect the E1938 he was examining may
- Original Message - From: Bob Camp li...@rtty.us
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Saturday, June 05, 2010 11:39 PM
Subject: Re: [time-nuts] Z3816a
Hi
The 1938 and 10811 share the same basic crystal. The difference between a
very
view), the other channels I think are used for WAAS and other data channels.
Bob
- Original Message -
From: J. L. Trantham jlt...@att.net
To: 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Sent: Friday, June 04, 2010 10:56 PM
Subject: Re: [time-nuts] Z3816a
To: 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Sent: Friday, June 04, 2010 10:56 PM
Subject: Re: [time-nuts] Z3816a
Correction. Z3805A tracks 16 satellites.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com
. Trantham jlt...@att.net
To: 'Discussion of precise time and frequency measurement'
time-nuts@febo.com
Sent: Friday, June 04, 2010 10:56 PM
Subject: Re: [time-nuts] Z3816a
Correction. Z3805A tracks 16 satellites.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time
I hadn't seen this mentioned anywhere else, so I thought I point out
that the Z3816A, at least the one I have that is spec'ed to run on
20-72V, will run on 12V, if you change the settings of DIP switch S1 on
the power board.
Normally S1 is set with switches 34 on (24A on the silkscreen) and
I have two Z3816A but some days ago I deleted the firmware of one of these.
Does someone know if is possible to found the firmware?
I was working with satstat and with a wrong command I erased the EPROM.
Can someone help me?
Thanks.
Luciano
___
Does anyone remember much about the old Motorola Oncore UT GPS receivers?
I have an HP Z3816a GPS timing receiver. I've been meaning for a long
time to add a display for UTC time to it for a while. Today I finally
got that project built and installed, and it works as intended, but I'm
seeing
Thanks for the suggestion. I was partially successful in changing the log.
and Lat, but the unit now shows in Hold mode. When I send it commands, I get
back the message receiver timeout, Last error -350 Queue overflow and the
return code is E-221. Also, it is no longer tracking any satellites and
I'm having a problem with my Z3816A. The health monitor and self tests show
the unit is fine, but it never moves out of the Power-up GPS acquisition
mode. I've tried several antennas (one of them currently working fine on a
z3801 unit). The z3816A shows it is tracking anywhere from 0 to 6
on a Z3801A receiver is reset with :SYSTEM:PRESET
then a one time position survey :PTIME:GPSYSTEM:POSITION:SURVEY ONCE
or your manually enter position data :PTIM:GPS:POS
N,37,19,32.5,W,121,59,51.2,40.12 (thats for N 37D 19M 32.5S W 121D, 59M,
2S and 40.12 for height in meters).
Also check:
Hello the list,
Anyone know where I can get a manual for an HP z3816a?
HP points me to Agilent, Agilent points me to Symmetricon, and Symmetricon has
nothing!
73 Warren K2ORS
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K2ORS wrote:
Hello the list,
Anyone know where I can get a manual for an HP z3816a?
HP points me to Agilent, Agilent points me to Symmetricon, and Symmetricon
has nothing!
73 Warren K2ORS
I've had a z3816a for a few years. I have never found anyone who had an
actual manual for
: [time-nuts] Z3816a
K2ORS wrote:
Hello the list,
Anyone know where I can get a manual for an HP z3816a?
HP points me to Agilent, Agilent points me to Symmetricon, and
Symmetricon has nothing!
73 Warren K2ORS
I've had a z3816a for a few years. I have never found anyone who had
I have an HP Z3816A GPS timing receiver. It has 4 of its output
connectors at 19.6608 MHz. I gather this was for cellular telephone
service.
Just curious... 19.6608 MHz seems like an unusual frequency. Is there
some logical reason why that frequency was chosen for this application?
I see this is
Hello,
Not unusual at all. It is 4.9152 * 4 and also 6.5536 * 3, both quite
common numbers :). It easily divides to standard serial baud rates
(38400 * 16 * 32 ).
Regards,
Javier, EA1CRB
Rex wrote:
I have an HP Z3816A GPS timing receiver. It has 4 of its output
connectors at 19.6608 MHz. I
In message [EMAIL PROTECTED], Rex writes:
Just curious... 19.6608 MHz seems like an unusual frequency. Is there
some logical reason why that frequency was chosen for this application?
It is the heartbeat of CDMA celluar networks as far as I know.
--
Poul-Henning Kamp | UNIX since Zilog
How do the two compare? Having already a Z3801A would it worthwhile
to try to get hold of a Z3816A ? In other words, how does the MTI
OCXO used in the Z3816A compare with the 10811-60158 of the Z3801A ?
Thanks
Alberto, I2PHD
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