The documentation in
http://www.perdrix.co.uk/FrequencyDivider/Frequency%20Divider%202.1.pdf
has just been updated (again) with a new section on test results and choice of
power supply
Regards,
David Partridge
-Original Message-
From: David C. Partridge
An MSA08 saturated with 10MHz input give a comb with +2.5dBM @80Mhz(see
screenshot). You have only to filter this frequency to clean the output
spectrum.
Regards, Luciano
Luciano P. S. Paramithiotti
IZ5JHJ
___
time-nuts mailing list --
Hi
I have not done this with the specific chip you are using, so I may be off
base.
With similar chips from the same people, I have had really terrible
increases in phase noise when running them saturated. I'd be careful about
using them as multipliers if noise is a concern.
Discrete
Hi,
First I'm in the UK so this does not directly affect me. I do have some
slightly independent comments.
Firstly the Garmin tests seemed very reasonable and erred to favor
LightSquared. They were free field in an anecohic chamber. There was an L1
notch filter in the output of the
Not *precisely* on topic, but likely of general interest..
Subject: RFM Looking for a Frequency Control Engineer
Date: Tuesday, February 1, 2011, 8:03 AM
RFM's manufacturing partner in Taiwan recently bought a high
end frequency control company and RFM is partnering
with them to market these
Where is the position located? Tks, John
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of Oz-in-DFW
Sent: Thursday, February 03, 2011 3:16 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Fwd: RFM Looking
Dallas Metro area. **I** like it ;-)
Sounds like it might be location negotiable though.
On 2/3/2011 2:25 PM, John Allen wrote:
Where is the position located? Tks, John
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf
Of Oz-in-DFW
Hi
I would by no means argue with any of those points. The only thing I would
add is that 40,000 transmitters is a *lot* of hardware to fill in gaps. You
could do a pretty good job covering the whole country with that much
hardware. The same math that goes for jamming, also works pretty well for
This is not the first time the FCC politicians have ignored their own
technical staff. A while back there was the same sort of flap around BPL
(Broadband Internet over Power Lines) - after several years of trials
and lots of taxpayer money wasted, it's basically been declared a
non-starter.
So -
and as posting in another email
“We conclude
that the pleading cycle for LightSquared’s request — in which the
Comment Public Notice was issued on November 19, 2010, with comments
due on December 2, 2010, and reply comments due on December 9, 2010 —
is sufficient for the decisions we make
At 05:04 PM 2/3/2011, Bob Camp wrote...
I would by no means argue with any of those points. The only thing I
would
add is that 40,000 transmitters is a *lot* of hardware to fill in
gaps.
Which is precisely why that characterization is wrong. ground stations
are 'fill in' for heavy use areas
Do we have any congressional HAMs these days. Bill Nelson should have
had a license since he was an astronaut, but I'm not finding it.
It only take a little radio knowledge to realize how stupid much of what
the FCC approves. The FCC raison d'etre is to prevent interference.
At 05:54 PM 2/3/2011, gary wrote...
It only take a little radio knowledge to realize how stupid much of
what the FCC approves. The FCC raison d'etre is to prevent
interference.
I don't see any reason for people to get all excited. GPS is
fundamentally a military system, and has very
Two thoughts...
GPS users most likely won't know that Lightsquared is the source of the
problem.
And two: LTE moves a lot of bits ( symbols) to multiple users in each
transmission, many of which are mobile, at pretty decent bit rates, so the
timing and synchronization very likely ARE critical to
Oh, they would have good filtering for THEIR GPS receiver. It;s just the
rest of us suckers that don't matter.
I have a Trimble GPS antenna I never used due to the goofy voltage.
p/n 16248-50
patent 3984834
My recollection is they have a SAW filter in it. It is used by the Navy,
though I
No head-ripping, Bill, simply that the FCC makes by fiat decisions that
belong in the marketplace. As long as it's easier for business to
cultivate a mandate instead of competing, I'll continue to dislike the FCC
behavior.
Part of the blame actually devolves from a great mistake by Reagan, the
List,
Wrote The nationwide LightSquared network, consisting of approximately 40,000
cellular base stations, will cover 92 percent of the U.S. population by 2015
You can make book the missing 8 percent will be areas that exclude the farmers
and ranchers who provide our food but the left will
Five out of nine people believe money is free speech and a corporation is a
person. Well five conservative judges. ;-)
-Original Message-
From: Perry Sandeen sandee...@yahoo.com
Sender: time-nuts-boun...@febo.com
Date: Thu, 3 Feb 2011 22:45:05
To:
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