In message <84a802ff-88f1-5f50-1f79-71d8ba3c4...@rubidium.dyndns.org>, Magnus D
anielson writes:
>What does exists is a formula for how a single sine spur would produce
>ADEV. A FM deviation with low enough modulation index creates two
>side-bands of opposite sign but same amplitude.
I f
Hi Rick,
On 08/06/2018 07:12 AM, Richard (Rick) Karlquist wrote:
> I need to measure ADEV on a source that has spurious
> sine wave frequency modulation on it. I am looking for a
> formula that would tell me ADEV, vs FM deviation and
> carrier frequency. I'm not sure if modulation frequency
> or
In message <596c5939-d99e-0b01-7ff8-2b5194fc6...@karlquist.com>, "Richard
(Rick) Karlquist" writes:
>I need to measure ADEV on a source that has spurious
>sine wave frequency modulation on it.
The biggest factor is the ratio between the tau's
you do allan for, and the modulation frequen
I need to measure ADEV on a source that has spurious
sine wave frequency modulation on it. I am looking for a
formula that would tell me ADEV, vs FM deviation and
carrier frequency. I'm not sure if modulation frequency
or tau matter. I am hoping to determine how much
I need to clean up the signa
A little while back an update to Ublox Ucenter had a mention of a soon (?) to
be released Ublox M9 receiver that supposedly does L1/L2/L5 data. Shortly
afterward, the update was sanitized. If an M9 comes out that will be very
interesting to play with.
https://rtklibexplorer.wordpress.com/20
I remember various licensing issues in GNSS magazine.
On Sun, Aug 5, 2018 at 2:28 PM, Bob kb8tq wrote:
> Hi
>
> There are multi GNSS receivers out there. Some may do Galileo. That’s
> different than a multi-band (L1 / L2 / L5) receiver that will do Galileo.
> Since
> the band naming conventions
Hi
There are multi GNSS receivers out there. Some may do Galileo. That’s
different than a multi-band (L1 / L2 / L5) receiver that will do Galileo. Since
the band naming conventions change between systems, even working out
what’s what is a bit exciting.
Galileo is a bit more “closed source” tha
Bob you sure about that?
I could have sworn a multi-band receiver was on ebay for $32.
Made special in N Korea.
That said I guess I will stick with the always working simple GPS for now.
On Sun, Aug 5, 2018 at 12:43 PM, Bob kb8tq wrote:
> Hi
>
>
> > On Aug 5, 2018, at 11:04 AM, paul swed wrote:
Hi
> On Aug 5, 2018, at 11:04 AM, paul swed wrote:
>
> Mark
> I have several questions.
> Would we observe and be able to take advantage of the better clock.
Right now … now so much
> Or is
> that lost in the various other transmission effects?
Modeling matters a lot, they are still working
Mark
I have several questions.
Would we observe and be able to take advantage of the better clock. Or is
that lost in the various other transmission effects?
If better what would it take to have a reference built up leveraging that?
Perhaps a precision timing receiver. I stop there because that ope
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