In message c33e8481-7f7b-4e45-ac70-9fb896ab6...@gmail.com, Neville Michie wri
tes:
We had a system of secondary radar called DME [...]
DME is still going strong, and is the main GPS-Backup over Europe
for air-traffic.
I do not know how shipping located themselves.
Possibly Omega...
--
out of a DME for ILS calibration.
Robert G8RPI.
--- On Sun, 14/2/10, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
From: Poul-Henning Kamp p...@phk.freebsd.dk
Subject: Re: [time-nuts] Loran C sounds
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Date: Sunday, 14 February
Looks like 40kW
What's that mean,
For those of us not familiar with those units, can you give that in the new
standardized USA government units of, CARS OFF THE ROAD. :-)
**
Hi
I wonder what just the electric bill is to keep a single chain (4
transmitters) up and running?
At 20.04 14/02/2010, Poul-Henning wrote:
http://phk.freebsd.dk/photos/L9007M/dscf0458.jpg.html
Looks like 40kW for a dualrated transmitter like EidÃ
Possibly times 1.73, it's three phase. About 650
MW/h per year - 2500 MW/h for the chain. Approx. $250.000 ?
Real costs are not
Take a look at the poor (but commonly low) power factor.
Much more volt-amps are being delivered than used to do effective work
as kilowatts.
Power factor correction would be a money saver if saving money were an
objective.
Stan, W1LE Cape Cod
Poul-Henning Kamp wrote:
In message
Residential meters measure KW
Industrial meters usually measure KVARs along with KVAs delivered
and the utility bills for both.
There is usually a distinct economic factor to reduce KVARs
Stan, W1LE
J. Forster wrote:
Power companies charge for KVAs, NOT KVARs.
-John
=
On 2/14/10 12:54 PM, J. Forster j...@quik.com wrote:
Power companies charge for KVAs, NOT KVARs.
-John
=
Take a look at the poor (but commonly low) power factor.
Much more volt-amps are being delivered than used to do effective work
as kilowatts.
Power factor
On 2/14/10 1:05 PM, Stan, W1LE stanw...@verizon.net wrote:
Residential meters measure KW
Industrial meters usually measure KVARs along with KVAs delivered
and the utility bills for both.
There is usually a distinct economic factor to reduce KVARs
Stan, W1LE
The last place I worked
That's no true, at least in my country. The industrial
consumer is charged for reactive power. We are therefore
forced to correct our power factor (cos fi).
Antonio
CT1TE
Quoting J. Forster j...@quik.com:
Power companies charge for KVAs, NOT KVARs.
-John
=
Take a look at
That's more in line with what I've seen... billing for KVA plus a penalty
for high KVARs.
Interestingly, last seen, the giant wound-rotor synchronous motors at the
Bitter National Lab got a rate reduction for overexciting the rotors, so
they look like capacitors, rather than inductors.
-John
This reference showed up in a radio list from a reliable source (Jerry
Proc):
http://thek3ngreport.blogspot.com/2010/02/radio-amateur-volunteers-to-save-l
oran.html
Bill Hawkins
___
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
Sent: Saturday, February 13, 2010 11:49 AM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran C sounds
This reference showed up in a radio list from a reliable source (Jerry
Proc):
http://thek3ngreport.blogspot.com/2010/02/radio-amateur-volunteers-to-save-l
Lady Heather will let you know when it is April Fool's day (and a bunch of
other days) if you are running one of the latest beta versions...
-
One person on the list asked if it was the first of April already (April Fool's
Day).
on the list asked if it was
the first of April already (April Fool's Day).
-Original Message-
From: Bill Hawkins
Sent: Saturday, February 13, 2010 11:49 AM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran C sounds
This reference showed up in a radio list
I believe he's referring to the Fairchild A-10A bubble sextant,
originally produced in the 1940s. I used a periscopic sextant in the
KC-135, an improvement over the hand-held, or dome-mounted bubble
sextant, but I never used any sextant in the Fairchild Republic A-10A
Warthog I subsequently
Australia never had LORAN. At one stage I think a Decca system was
trialed, but never installed.
We had a system of secondary radar called DME from the late 50s -
early 60s. A randomised pulse pair was sent out from the plane and
was received
by a beacon at the airport. The beacon digested
, February 12, 2010 00:04
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran C sounds
Two things:
1. The Solar Dynamics Observatory launched this morning, on a mission to
examine the fields and mass ejections that threaten satellites and
power grids
Actually pretty much what would happen if the same occurred now that
Loran C is turned off.
Tell me, how well does your GPS receiver work with Loran C? Do you
have a mapping Loran C receiver to take your GPS's place should it
be disabled? No one else does either.
-Chuck Harris
Sykes, Stephan
-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Bob Camp
Sent: Friday, February 12, 2010 6:57 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran C sounds
Hi
I know it's a chicken and egg thing, but Loran-C died for navigation
Greetings,
As a former user of Loran for aircraft navigation, I can safely say that
there is no reason to preserve the system.
The antenna required on an aircraft must be vertically polarized and of
significant length. The route from the US west coast to Hawaii had no
coverage in the middle
:57 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran C sounds
Hi
I know it's a chicken and egg thing, but Loran-C died for navigation a
while
back. The hardware simply isn't out there anymore. GPS could have died two
weeks ago and Loran-C would have
True.
However, GPS is now so ubiquitous that if they put SA back on, Congress
would likely reverse the decision because of the outcry. GPS is a victim
of its own success.
FWIW,
-Jhn
===
What is going to happen if GPS has a problem, or if the US puts SA back
on? Now the only
On Fri, Feb 12, 2010 at 07:29:39AM -0800, Peter Putnam wrote:
The antenna required on an aircraft must be vertically polarized and
of significant length. The route from the US west coast to Hawaii
had no coverage in the middle one-third of the route at night.
Coverage was even less during
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Majdi S. Abbas
Sent: Friday, February 12, 2010 13:01
To: pe...@ni6e.com; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran C sounds
On Fri, Feb 12, 2010 at 07:29
...@febo.com] On
Behalf Of Majdi S. Abbas
Sent: Friday, February 12, 2010 13:01
To: pe...@ni6e.com; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Loran C sounds
On Fri, Feb 12, 2010 at 07:29:39AM -0800, Peter Putnam wrote:
The antenna required on an aircraft must
AM
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] Loran C sounds
Hi Steve,
What is going to happen if GPS has a problem, or if the US puts SA back
on? Now the only backup for navigation is a sextant.
Steve KD2OM
GPS _will_ (can
A hog driver and time-nut; heck of a combination. I kept my feet on
the ground back in the '60s. but always had my spirits lifted when
Spooky showed up.
Heard you guys flew the wings off those planes. Boeing is replacing
all 242 wing sets for another 20 years of service.
Thanks for your
00:04
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran C sounds
Two things:
1. The Solar Dynamics Observatory launched this morning, on a mission to
examine the fields and mass ejections that threaten satellites and
power grids. They are delighted
Hi Steve,
What is going to happen if GPS has a problem, or if the US puts SA back
on? Now the only backup for navigation is a sextant.
Steve KD2OM
GPS _will_ (can) not get a serious problem as long as the US is at war.
Buy a Glonass receiver. (In a few years buy a Galileo/Gagan/GPS/Glonass
In message 62026.87.227.52.225.1265975191.squir...@webmail.lysator.liu.se, bg
@lysator.liu.se writes:
GPS _will_ (can) not get a serious problem as long as the US is at war.
You mean just like Windows Vista has to be a success ?
It's always important to distinguish between hard facts and
-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Bill Hawkins
Sent: Friday, February 12, 2010 00:04
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Loran C sounds
Two things:
1. The Solar Dynamics Observatory launched
Unfortunately I had to travel during the shutdown. I had wanted to listen.
But I fired up the austron and 59300 locks (Canadian LORAN)
Like you, I have only ever heard dual rate. Now its a steady patter until
Sept/Oct when even that will go away.
On Tue, Feb 9, 2010 at 7:47 PM, Rich and Marcia
I wonder if there is any point in contacting the Canadians about keeping
LORAN operating?
-John
===
Unfortunately I had to travel during the shutdown. I had wanted to listen.
But I fired up the austron and 59300 locks (Canadian LORAN)
Like you, I have only ever heard dual rate.
Sure they might take a check for $36M or so.
As they have said without the yanks, its broke. So they will shut down
before Oct.
Its all about $$
On Thu, Feb 11, 2010 at 9:58 PM, J. Forster j...@quik.com wrote:
I wonder if there is any point in contacting the Canadians about keeping
LORAN
Actually if I had a spare $36M or less I might buy the station on Nantucket.
;-)
Change it from LORAN to Master freq reference...
Though I am thinking several CS standards would be cheaper. Certainly draws
less power
On Thu, Feb 11, 2010 at 10:07 PM, paul swed paulsw...@gmail.com wrote:
Sure
Two things:
1. The Solar Dynamics Observatory launched this morning, on a mission to
examine the fields and mass ejections that threaten satellites and
power grids. They are delighted to be putting instruments in place
after a prolonged quiet period so they can watch activity ramp up.
The people
Hi all;
Just an aside, after hearing dual rated Lorsta Dana for the last 25 years, it
is interesting to now hear a single rated chain. Rather than the syncopated
clatter of Dana, now just a smooth pitter! The east coast Canadian chain is
much weaker here in northern Indiana than Dana (about 125
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