Any kind of atmospheric disturbance has a measurable effect on GPS
space and time precision, the question is more about how much the
impact is. Presuming that the GPS receiver is stationary, the antenna
has a clear visibility of the sky, then "ordinary weather" like
clouds, moderate rain or snow, s
It must be very old, had I ever seen an HP5065A with three positions of the
Function Switch (Adj Mag Field)
Luciano
Da "time-nuts" time-nuts-boun...@lists.febo.com
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Data Mon, 21 Oct 2019 08:59:34 -0700
Oggetto [time-nuts] Ancient HP 5065A on e
I see no attenuation at 1376 MHz (close to GPS frequency) when observing
pulsars with a radio telescope. Even the brightest pulsar (Vela) is so much
fainter than a GPS signal which boom in when they happen to pass into the
telescope's beam.
It definitely happens at higher frequencies though. Up ar
In message
, Fiorenzo
Cattaneo writes:
>Any kind of atmospheric disturbance has a measurable effect on GPS
>space and time precision, [...]
Actually, it's even simpler than that:
Any electrical charge in the freshnell-zone between the two antennas
delays the signal.
In practice that
On 10/21/19 10:06 PM, Dana Whitlow wrote:
A friend of mine living in SE lower Michigan recently bought
a Geppetto GPS clock, and swears that it tends to lose
satellite lock on cloudy days but does OK on sunny days.
He is admittedly using a very poorly-sited antenna,
placed in a window because hi
On 10/22/19 1:13 AM, Poul-Henning Kamp wrote:
In message
, Fiorenzo
Cattaneo writes:
Any kind of atmospheric disturbance has a measurable effect on GPS
space and time precision, [...]
Actually, it's even simpler than that:
Any electrical charge in the freshnell-zone between the tw
The tablet will not accept charging current when in the OTG mode, which is
required to make the tablet a master (USB is asymmetrical system, there is
always a master and a slave). It is not a function of the type of hub
plugged into it.
When you plug the tablet into a PC, the PC is the master and t
On 10/22/19 2:23 AM, Jim Palfreyman wrote:
I see no attenuation at 1376 MHz (close to GPS frequency) when observing
pulsars with a radio telescope. Even the brightest pulsar (Vela) is so much
fainter than a GPS signal which boom in when they happen to pass into the
telescope's beam.
It definitel
How does
https://www.startech.com/Cards-Adapters/Serial-Cards-Adapters/micro-usb-serial-adapter-android~ICUSBANDR232
do it? Once every thing else works I may buy one.
Bert Kehren
In a message dated 10/22/2019 9:06:15 AM Eastern Standard Time,
shali...@gmail.com writes:
The tablet will not
The comment I would make is in the past there have been discussions on
time-nuts about the patek clock movement. Maybe the units worth it for that
alone. But do agree the shipping will be quite an additional cost.
I had actually wanted a clock. But a person filled me in on the clack clack
clack of
>
> > With this setup you have no single point of failure, and even if the
> > connection to internet fails, they can still provide time as they are
> > peering
> > and synchronizing with each other.
> No, it doesn't work that way. You need connectivity to at least one stratum 1
> server.
> There
Hi jimlux -- unfortunately my domain expertise is in the digital
domain (computer science) and I'm having a hard time in following this
paper. I do understand that "space weather", i.e. CMEs (coronal mass
ejections) will significantly impact GPS/GLONASS operations when the
charged particles reach e
Hi
Indeed, while the clock *is* cool, I would strip it out of a 5065. The nose is
one issue. The power consumed by the chain of boards (which also would
go) is (to me) at least as big a bother.
Bob
> On Oct 22, 2019, at 10:47 AM, paul swed wrote:
>
> The comment I would make is in the past
I recently acquired a pair of Meinberg M600's (with GPS-CON downconverters).
>From the usual auction site got a dual band antenna (for
futureproofing), a 2nd hand mini-circuits ZN4PD1-63W-S+, several SMA
BIAS-TEE to prevent DC issues, and an assortment of coax cables to
connect everything up.
To
Maybe someone on the list has a recent and authoritative answer to the
following questions.
I’ve been digging around in “civilian mode” (not an OS X or iOS developer)
trying to determine if current Mac OS X and iOS releases handle leap seconds:
no smearing
proper display of 23:59:60, etc o
Glad I read all the replies since I was also going to suggest Canon
connectors. I have used the 3 pin canon because they are easy to find
and I am not going to plug a microphone into a power supply. The
breakout box is unique enough to not get it confused with anything
else. (Not suitable for the g
Bob indeed with the comment from a friend, that sort of settled my desire
for a patek down. Agree on the divide chain and drivers. Very easy to
replace today. But not a concern since I won't be bidding for a clock with
a maybe working something.
Regards
Paul
WB8TSL
On Tue, Oct 22, 2019 at 6:31 PM
4 pin xlr is also standard for pro audio/video. So you might want to use the
same pin configuration as the ‘standard’ so you can use the large variety of
accessories available.
Content by Scott
Typos by Siri
On Oct 22, 2019, at 7:42 PM, "n...@lazygranch.com" wrote:
Glad I read all the replies
On 10/22/19 7:58 PM, Scott McGrath wrote:
4 pin xlr is also standard for pro audio/video. So you might want to use the
same pin configuration as the ‘standard’ so you can use the large variety of
accessories available.
Content by Scott
Typos by Siri
On Oct 22, 2019, at 7:42 PM, "n...@lazygran
Eric,
You might want to try this thread over on the LEAPSECS list [1]. Yes,
there's a special list just for leap second nuts so that we don't have
to discuss them here on time-nuts. You'll find the archives deep,
fascinating, and often contentious. Practical real life examples like
your low-c
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