I was comparing my Sulzer 2.5 to my Efratom FRT and saw something very
odd. I don't know if my PM6681 has developed a fault or if I'm just
measuring two oscillators that are good enought to show oddities in my
measurement system.
When the phase of the two signals drifts through zero, the meas
I have finally managed to decode the RFTG-m voltages message and have all the
values except antenna current... that is apparently hidden away in one of the
other receiver messages.
As far as calculating sat positions for the receiver... the main issue is
getting the current almanac and epheme
https://www.febo.com/pipermail/time-nuts/2017-May/105500.html
We recently did a partial alignment of the lock servo on our #2
HP5061B after replacing the beam tube. The previous owner had tried to
fix it by turning adjustments. This made a big improvement in the
lock. KB7APQ got the idea to use
Greetings,
The dealer noted below had another hp oven for sale at the W6TRW Ham
Swap meet in Redondo Beach, CA., on May 27th.
The unit is a cylinder about a foot long and 5 inches in diameter with
sma-size connectors and four shock-mounts attached to the sides. It is
marked:
Crystal Oven
M
Hi
The gotcha with carrier phase is that it is a bit more sensitive to local
signals
than your ear is. Yes, a lot depends on your antenna setup and as you mention,
just how many watts of distribution and thousands of feet of cable you are
running
10 MHz through.
Bob
> On May 29, 2017, at 1
Bob, unlike the guys who have many watts of 10MHz running around their labs
via multiple distribution amplifiers, I do not have a big problem with my
dinky 10MHz reference leaking into my radio antenna :-).
This fall the "best band" for WWV for me during daylight eclipse would be
15MHz. 10MHz woul
As far as atomic clocks are involved, I wish to better point out where I stand,
along with some tips and info.
- no exotic physics;
- gravity is totally extraneous;
- time is not involved;
- the recorded anomalies are instrumental artifacts. The instruments responded
to something however
Hi
There are a *lot* of SDR boards out there today. The HackRF One is a pretty
cheap one (you get what you pay for …). They go up to some very expensive
setups by National Instruments / Ettus. Most of them allow for an external clock
input. The usual isolation issues will still apply when checkin
In message
, Tim Shoppa writes:
>Now that I have a 10MHz GPS OCXO (well, I've had that for about 15 years
>too, getting that was the reason I stopped dinking with the WWV audio
>refclock) I wonder if there's some simple hardware I could build that would
>let me do superior carrier-phase
During regular night/day cycles I can just barely observe the night-day
shift in WWV propagation from Colorado to my location near Washington DC,
using the NTP WWV audio refclock. It amounts to a few hundred microseconds
of shift. I last touched that code about 15 years ago.
Now that I have a 10MH
To my mind there may be some effect due to small variations in gravity. The
Chinese paper is very interesting and does propose classical explanations for
the observed gravimeter anomalies. Even so , the variations that were detected
by them should be detectable with a sufficiently stable clock.
Hi,
On 05/29/2017 09:56 AM, Poul-Henning Kamp wrote:
In message
, Michael Wouters writes:
The effect you're looking for depends on a comparison of two different
kinds of atomic clocks eg Cs vs H-maser so the maser comparison presumably
will be a null measurement.
It would have to b
My suspicion is just about the solar wind being switched off, which also has
effects on the magnetosphere.
Anyway, this very unique opportunity should not be lost.
Antonio I8IOV
>Messaggio originale
>Da: "Neville Michie"
>Data: 29/05/2017 10.18
>A: "Discussion of precise time and freq
Maybe there is an effect when the solar wind is switched off for half an hour.
The ionosphere may shift in that time. This is a great opportunity when an
impulse
is applied to the system. The switching off of the solar UV is sure to affect
the
ozone layer. You will not have an opportunity to m
Apologies, I didn't read the paper carefully enough. The original claim
does appear to be for a comparison of like clocks eg Cs vs Cs, with a claim
of greater effects for a comparison of clocks in and out of the eclipse
path.
Cheers
Michael
On Mon, 29 May 2017 at 8:20 am, iovane--- via time-nuts
In message
, Michael Wouters writes:
>The effect you're looking for depends on a comparison of two different
>kinds of atomic clocks eg Cs vs H-maser so the maser comparison presumably
>will be a null measurement.
It would have to be between clocks where the clock-atoms have very
differ
The effect you're looking for depends on a comparison of two different
kinds of atomic clocks eg Cs vs H-maser so the maser comparison presumably
will be a null measurement.
But I see the path of totality passes a bit north of NIST Boulder and I'm
pretty sure they will notice if there is an effect
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