i am located in switzerland.
i checked tonight's log of my lucent ks-24361. it had perfect satellite
reception during the whole night.
but: i stopped logging a TI-measurement this morning because it was
messed up. the reference is a Miller Simple GPSDO, the DUT a decently
stable rubidium
during the last days i ran a few tests with different high stability
options.
setup:
channel 1: thunderbolt 10 mhz divided down to 1 pps
channel 2: trimble 73090 DOCXO 10 MHz divided down to 1 pps. frequency
offset about 7e-9
internal time bases: no additional time base; morion mv89a; trimble
i have a 53132A and the the time base from the polish seller as well as
a time base from gerry sweeny (UK) who uses a trimble 34310-T instead of
the morion ocxo. both are plug and play and can be easily calibrated.
i have no data, but if i remember correctly, the presence of a high
stability
hi jürg,
dispite the fact that my prs-10 has been up and running for only about 2
years (according to FC!?), the lamp assembly looks pretty ugly (see
picture) as if it was overheated quite a bit. i bought the unit from
ebay, so i have no idea under what conditions it had spent its life
1st.
/tvb (i5s)
On Jan 25, 2015, at 3:54 AM, Hans Holzach hans.holzach at
gmail.com wrote:
my jackson labs fury (1.22) reports:
leapsecond pending: 0
leapsecond accumulated: 16
leapsecond date: 2015,7,1
leapsecond
my jackson labs fury (1.22) reports:
leapsecond pending: 0
leapsecond accumulated: 16
leapsecond date: 2015,7,1
leapsecond duration: 60
strange...
hans
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mike,
i have a prs-10, software version 3.15, serial number 5351. default lock
mode is 1, default time offset is 0. the fc values have been written to
the EEPROM twice in the last 20 hours. fc!? returns 233,1426,1640,1647.
hans
I have a SR TDS12 which apart from name appears to be a
i noticed that the resolution of the PPS TI relative to GPS is 10 ns. is
there a scpi command to get a better resolution?
a few trivial observations:
my boxes have been up and running for a few days only, but they seem to
behave pretty well. however, a few things kept me busy for a while: i
living in switzerland, i have encountered that problem several times. ebay
blocks pages from certain sellers for reasons i do not know.
a good seller from china, just as an example, does not show up when i use
firefeox to access ebay. same with said's
pages. i recommend using the TorBrowser. it
nope, sorry, link does not work...
but these should:
20 mhz:
http://www.ebay.com/itm/LTE-Lite-GPSDO-Evaluation-Kit-with-20MHz-TCXO-/171504586548?pt=LH_DefaultDomain_0hash=item27ee784f34
10 mhz:
bert,
and how, please, are us newbies and dabblers supposed to learn from you,
the elite time-nuts, when you keep your discoveries secret, only
accessible to a group of hand-picked individuals? of course, this is a
free world, and you, like everybody, is free to share or not to share
your
hi tom,
thank you very much! that is quite interesting. i am happy to learn that
there is nothing wrong with *my* counter! converting the non-linearity
effect into a correction table is beyond my abilities, but simply
knowing that this effect is inherent to the 53132a counter helps a lot.
the steps completely. They leave small
steps behind. It isn't related to the counter used, but seems to be
related to the number of data points per cycle and the unwrapping
algorithm used by the program.
Ed
On 5/1/2014 4:05 AM, Hans Holzach wrote:
hi tom,
thank you very much! that is quite
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said,
if i understand correctly, while in holdover, activated by
sync:hold:init, temperature and aging compensation are still active
(as it should be). however, to measure drift, i have to somehow
disable these compensations, haven't i?
yesterday, i wrote down the values
said,
if i understand correctly, while in holdover, activated by
sync:hold:init, temperature and aging compensation are still active (as
it should be). however, to measure drift, i have to somehow disable
these compensations, haven't i?
yesterday, i wrote down the values of temperature and
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FYI: I tend to record all serial (RS232/GPIB/USB/LAN) data from counters,
analyzers, receivers, environmental sensors with a precision MJD prefix. This
allows both tight correlation among different instruments in the lab and also
allows ADEV-like tools to estimate, and then gradually refine
aren't much help.
Hans Holzach wrote:
i use a 59309A as a time and date display in a setup of old HP devices:
10 mhz are taken from a fury gpsdo to keep the clock stable. an HP 71B
reads the time from the gpsdo via an HP-IL/RS-232 interface and delivers
it to the clock via an HP-IL/HPIB interface
i use a 59309A as a time and date display in a setup of old HP devices:
10 mhz are taken from a fury gpsdo to keep the clock stable. an HP 71B
reads the time from the gpsdo via an HP-IL/RS-232 interface and delivers
it to the clock via an HP-IL/HPIB interface. setting the clock looks
pretty
i only know about the fury: the scpi command GPS:POS:SURV:STAT ONCE
starts an auto-survey and lasts about three hours as 10,000 acquisition
points are needed. if reception is bad this may take longer. you can
specify the maximal number of points with GPS:POS:SURV:MAXP [0,1].
10,000 is the
pete, thank you for your advice. unfortunately i did not get much help
there. the problem with the clock seems to be more complex than i thought.
hans
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hi all,
i have a small collection of old HP calculators, with the hp 71b being
my favourite. as a watchmaker i thought it might be a good idea to add
a digital clock HP 59309A to my collection. but this cost my quite a
few hours of sleep as i encountered an unexpectd problem that i
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