Though I'm new to the list I've lurked for quite a while and from reading
various posts I am in a slightly confused state as to whether buying an
expensive counter (eg Keysight 53230A or a Tek fca 3100) will be useful as a
measurement tool for developing a GPSDO.
Given a one shot measurement
On 1/29/2015 5:41 PM, Alexander Pummer wrote:
And the narrow notch for the harmonic is not required anyway, since the
fundamental is fare enough, therefore a high Q LC trap will work
better, also with the setting of the biasing af the active devices the
Alex KJ6UHN
When I designed the 5071A
Esa Heikkinen tn1ajb@... writes:
Robert Watzlavick kirjoitti:
I'm seeing the same thing with my TS-2100 - it is one second behind WWV
based on the front panel display. My ET-6000 appears to be in sync.
Ok - then this is verified...
So the only way (for me) is to run this with
Am 30.01.2015 um 02:41 schrieb Alexander Pummer:
And the narrow notch for the harmonic is not required anyway, since
the fundamental is fare enough, therefore a high Q LC trap will work
better, also with the setting of the biasing af the active devices the
spures could be reduced to [ just
First of all, the oven oscillator option of the 53230
is no where near as stable in ADEV as a 10811 for example.
The counter itself is 1 or 2 orders of magnitude better
than the built in timebase. So don't waste your money
on the OCXO option when you, as a time nut, undoubtably
already own
and...@netplex.net said:
I have a nice set of TS2100 GPS Rubidium boxes as primary servers that
provide time and PPS to more current NTP servers. It's too bad the firmware
is so old and this bug won't be fixed.
If you are using ntpd, you can fudge the time by a second so ntpd will
And the narrow notch for the harmonic is not required anyway, since the
fundamental is fare enough, therefore a high Q LC trap will work
better, also with the setting of the biasing af the active devices the
spures could be reduced to [ just observe the output with a spectrum
analyzer and set
The source of the sawtooth is not the GPS receiver L.O., it is the
frequency of the master clock in the CPU.
The 1PPS line is a GPIO line from the CPU.
This means that the 1PPS line is constrained to only change state
on the edge of a CPU clock. The CPU can calculate exactly when the
the 1PPS
Hello Tom,
On Thu, Jan 29, 2015 at 5:27 PM, Tom Van Baak t...@leapsecond.com wrote:
google for: m12 gps sawtooth
I have seen your saw-tooth graphs on leapsecond. It did slightly increase
my confidence that all units probably are within this range. I guess I can
assume this is the same among
