Burt, what is your DAC setting now it's stabilised? It is normally set so it
is mid-range when setting these units up.
Rob
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Burt I. Weiner
Sent: 12 April 2013 19:49
To: time-nuts@febo.com
hi dears
i'm newer here.
i have some questions about loran-c receiver.can you help me?
i want to know how can i find third zero crossing in loran-c receiver?
i find third zero cross by peterson 's method from this paper:
Analysis of Noise and Cycle Selection in a Loran Receiver
but due to
Hi,
I don't know this model from Austron, but you could try asking fellow Time
Nuts if anyone has a manual for the 5000 which should include the full
calibration procedure.
I know on the Austron 2000C the calibration procedure was quite a long to
set it up correctly. I'm sure that the 5000 will
Hi
The concept you most commonly see is a curve fit approach. You know the
structure of the waveform through several cycles. You can fit this model
waveform to the observed data over a large number of points. As you fit more
points, the impact of the noise is reduced.
Bob
On Apr 13, 2013, at
Scotchkote! Yes - Thank you for the correction! The other could lead to
disaster!
Nope - not ex-navy. Its pretty standard practice in the offshore world.
My time was spent on research vessels down in Antarctica.
Apologies for the mix-up.
Brent
On Fri, Apr 12, 2013 at 3:37 PM, paul swed
Its a master timing rcvr from the simple research I have done. Must be
fallout from the US LORAN C shut down. Anyhow The whole signal spec is here.
http://www.navcen.uscg.gov/?pageName=loranSignalSpec
Its a 8 MB zip
I have done the 2000 procedure and it is complicated to say the least.
Given the
An additional thought.
The third cycle is not the thing you would see on a scope looking at the
raw signal. The rcvr determines when the signal has risen above 0. That may
be 1 to 2 really small cycles. Its from that point its the 3rd crossing.
Normally there is a gate out signal thats useful to
See if this helps:
http://www.leapsecond.com/museum/au2100f/scope.htm
/tvb (iPhone4)
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OK, so we seem to have:
1) Scotch 130 rubber tape
2) Scotch 33 electrical tape
3) Scotchkote
in that order.
So the rubber tape waterproofs
the connection and the scotch kote
protects it from UV, so what does
the electrical tape do?
Or maybe, the electrical tape does
the waterproofing and
Can someone in the know clarify this?
I'm not in the know.
Several years ago, I found a short chunk of coax that the cable TV guys had
left on the ground. It included a piece of heavy wall shrink tubing. There
was a layer of sticky goop between the coax and the shrink tubing.
--
These
Rick
It is a very rare time I get to answer you.
The plastic tape holds the rubber end initially, adds another layer of wx,
and in reality is sacrificial to UV over the years. First the liquid rubber
gives up. Then the plastic. Thats a big clue when it gets ratty. Time to
change. Fact is even at
On Sat, 13 Apr 2013 14:07:05 -0700, Hal Murray
hmur...@megapathdsl.net wrote:
Can someone in the know clarify this?
I'm not in the know.
Several years ago, I found a short chunk of coax that the cable TV guys had
left on the ground. It included a piece of heavy wall shrink tubing. There
On Fri, Apr 12, 2013 at 11:48:47AM -0700, Burt I. Weiner wrote:
Sorry for the delay in posting this update. Things have been hectic,
and then there was NAB.
Here's what I've discovered: The receiver started working after
about 6 hours of just sitting. However, the 9390's internal
Think of heat shrink with a layer of hot melt glue on the inside. Such stuff is
used in most outdoor and especially underground utility wiring. Shrink the
tubing and it melts the glue and the contracting tubing forces the glue into
every crevice making a great waterproof splice.
On
Yes its from the heat shrink.
When they shrink the wrap it forms an air proof seal.
Regards
Paul
WB8TSL
On Sat, Apr 13, 2013 at 5:07 PM, Hal Murray hmur...@megapathdsl.net wrote:
Can someone in the know clarify this?
I'm not in the know.
Several years ago, I found a short chunk of coax
Kind of a cool technology -- they bombard the outside of the tube with an
electron beam that cross-links the polymer but leaves the inside untouched.
The outside becomes hard but still shrinks. The inside just melts into a
goo when heated.
Dave
-Original Message-
From:
On Sat, Apr 13, 2013 at 6:58 AM, brent evers brent.ev...@gmail.com wrote:
Scotchkote! Yes - Thank you for the correction! The other could lead to
disaster!
Nope - not ex-navy. Its pretty standard practice in the offshore world.
My time was spent on research vessels down in Antarctica.
I
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