: Sunday, October 10, 2010 9:54 PM
Subject: Re: [time-nuts] 60 KHz Receiver
Kind of sad, IMO, the way the US has squandered our space competance.
FWIW,
-John
=
The city of Sunnyvale was thinking of replacing it (the Blue Cube, etc)
with car dealerships, but decided against
and frequency measurement
time-nuts@febo.com
Sent: Saturday, October 9, 2010 9:27:20 AM
Subject: Re: [time-nuts] 60 KHz Receiver
About the only doors in the place that did not have electronic combo locks
were the bathrooms.
Sad to see it's being shut down. IMO, it was one of the kewl places
- Original Message -
From: J. Forster j...@quik.com
To: bro...@pacific.net, Discussion of precise time and frequency
measurement time-nuts@febo.com
Sent: Saturday, October 9, 2010 9:27:20 AM
Subject: Re: [time-nuts] 60 KHz Receiver
About the only doors in the place that did not have electronic
substandard toilet seat...
Don
- Original Message -
From: J. Forster j...@quik.com
To: d.sei...@comcast.net
Cc: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Sunday, October 10, 2010 9:54 PM
Subject: Re: [time-nuts] 60 KHz Receiver
Kind of sad, IMO
Well I remember them at least I think we are speaking of the same domes.
The ones I am thinking of are just south of moffet field though those were
actually dishes.
Anyhow being a bit interested and in the navy at the time. Drove on to
moffet field no problem with a navy truck and drove through an
Hi Dave:
Yes, it was right on the central expressway and was part of the GTE
military electronics complex.
Hi John:
My recollection of the antennas at the Blue Cube is that they are out in
the open. See photo at:
http://en.wikipedia.org/wiki/Blue_Cube
Have Fun,
Brooke Clarke
The reason for the dishes could well have been for comunications with the
Blue Cube as that place was/is? the headquarters for the Air Force
Satellite Control Facility.
Maybe you remember The Brass Rail... the nudie bar across the street
from the Lockheed main gate?
-John
Well
About the only doors in the place that did not have electronic combo locks
were the bathrooms.
Sad to see it's being shut down. IMO, it was one of the kewl places to be
in the heddy early days of space.
OTOH, it probably makes some sense to muve the thing into the bowels of a
mountain somewhere.
Hi John:
Was at the Brass Rail decade ago. Later read the Russians were also
there during the cold war.
Have Fun,
Brooke Clarke
http://www.PRC68.com
J. Forster wrote:
The reason for the dishes could well have been for comunications with the
Blue Cube as that place was/is? the
I have no doubt it's be a good snooping ground for the Ruskies. Lotsa guys
from spooky places, booze, and naked women. Lunchtime featured a gal with
a big snake... and little else. LoL.
-John
Hi John:
Was at the Brass Rail decade ago. Later read the Russians were also
On 10/9/2010 7:40 AM, Brooke Clarke wrote:
Hi Dave:
Yes, it was right on the central expressway and was part of the GTE
military electronics complex.
That building existed from 1963 until 1990 at the GTE Sylvania complex
that was at 500 Evelyn... right at Central Expressway and 237. Can't
On 10/9/2010 11:43 AM, Matthew Kaufman wrote:
On 10/9/2010 7:40 AM, Brooke Clarke wrote:
Hi Dave:
Yes, it was right on the central expressway and was part of the GTE
military electronics complex.
That building existed from 1963 until 1990 at the GTE Sylvania complex
that was at 500
We had similar dome in Sunnyvale (Ca) until the late 80's, but I can't remember
who owned it, maybe GE?; it's all housing now.
Dave
- Original Message -
From: Arthur Dent golgarfrinc...@yahoo.com
To: time-nuts@febo.com
Sent: Friday, October 8, 2010 5:06:34 AM
Subject:
: Re: [time-nuts] 60 KHz Receiver
We had similar dome in Sunnyvale (Ca) until the late 80's, but I can't
remember who owned it, maybe GE?; it's all housing now.
Dave
- Original Message -
From: Arthur Dent golgarfrinc...@yahoo.com
To: time-nuts@febo.com
Sent: Friday, October 8, 2010
Where? Off 401 near the Blue Cube?
-John
=
We had similar dome in Sunnyvale (Ca)Â until the late 80's, but I can't
remember who owned it, maybe GE?; it's all housing now.
Dave
- Original Message -
From: Arthur Dent golgarfrinc...@yahoo.com
To: time-nuts@febo.com
You mean near the intersection of 401 and 537? Close to 385 also.
(I took the liberty of keeping up the code and adding 300 to everything.)
-Rex
On 10/8/2010 6:26 PM, J. Forster wrote:
Where? Off 401 near the Blue Cube?
-John
=
We had similar dome in Sunnyvale (Ca)Â until
Hi
The one thing that an alternator system had available was *power*. They are
fairly efficient and you put lots of horsepower into them. Numbers in the 100's
of KW come to mind
What we're talking about here is more or less a page from the history of radio
in the early 1900's. People that
Bob Camp wrote:
Hi
The one thing that an alternator system had available was *power*. They are
fairly efficient and you put lots of horsepower into them. Numbers in the 100's
of KW come to mind
What we're talking about here is more or less a page from the history of radio in the
early
Telstar was a BIG DEAL! There was even a pop song about it.
-John
I was surprised to see how late it was before the first *wired*
transatlantic phone call was made: 1956 ($12/3 minutes, 36 lines
available). the first Telstar call wasn't that much later in 1962.
On 10/07/10 17:09, J. Forster wrote:
Telstar was a BIG DEAL! There was even a pop song about it.
Reading the Bell labs books on the Telstar project is very nice. Nice
fold-outs on control-panels etc.
They did spent a lot of time to engineer the whole thing. Their antenna
setups that would
And an Astounding Science Fiction novella --the trouble with telstar--
Don
- Original Message -
From: Magnus Danielson mag...@rubidium.dyndns.org
To: time-nuts@febo.com
Sent: Thursday, October 07, 2010 2:16 PM
Subject: Re: [time-nuts] 60 KHz Receiver
On 10/07/10 17:09, J. Forster
Could you tell me which book you have on mind ? I'd love to read the story.
I visited Telstar ground station in Pleumeur-Bodou, France once. There
is museum
there now, called Cite des Telecoms. They preserved original
horn-like antenna
used for Telstar communication and lots of original
There was / is? a ground station near Andover Massachusetts also. The
antenna was called a Hogg Horn.
-John
===
Could you tell me which book you have on mind ? I'd love to read the
story.
I visited Telstar ground station in Pleumeur-Bodou, France once. There
is museum
there
. This is what
television was invented for. Now we have The Greatest Loser ...
What a waste.
73, Dick, W1KSZ
-Original Message-
From: J. Forster j...@quik.com
Sent: Oct 7, 2010 3:02 PM
To: Discussion of precise time and frequency measurement time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz
are
not needed for telecoms now. Arthur is now a historic monument so we do
get some things right !!
Alan G3NYK
- Original Message -
From: Magnus Danielson mag...@rubidium.dyndns.org
To: time-nuts@febo.com
Sent: Thursday, October 07, 2010 9:16 PM
Subject: Re: [time-nuts] 60 KHz Receiver
Long long gone completely though I think a plack is there. It was on
chronicle several years ago.
On Thu, Oct 7, 2010 at 6:02 PM, J. Forster j...@quik.com wrote:
There was / is? a ground station near Andover Massachusetts also. The
antenna was called a Hogg Horn.
-John
===
j...@quik.com said:
There was / is? a ground station near Andover Massachusetts also. The
antenna was called a Hogg Horn.
Andover Massachusetts or Andover Maine?
http://en.wikipedia.org/wiki/Andover_Earth_Station
Hogg seems to be the guy (or main guy) who put a parabolic reflector on a
, distribution
or use of the contents of this e-mail or any documents attached hereto is
prohibited.
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Magnus Danielson
Sent: 08 October 2010 06:17
To: time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz
of this e-mail or any documents attached hereto is
prohibited.
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Piotr Kolodziejczyk
Sent: 08 October 2010 07:32
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 60
-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of J. Forster
Sent: 08 October 2010 08:02
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 60 KHz Receiver
There was / is? a ground station near Andover Massachusetts also. The
antenna was called a Hogg
...@veenstras.com
Sent: Oct 7, 2010 4:34 PM
To: 'Discussion of precise time and frequency measurement' time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
And at Andover, Comsat took it all down and cut it up to save taxes rather
than save history.
Lester B Veenstra MØYCM K1YCM
les
[mailto:time-nuts-boun...@febo.com] On
Behalf Of J. Forster
Sent: 08 October 2010 08:02
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] 60 KHz Receiver
There was / is? a ground station near Andover Massachusetts also. The
antenna was called a Hogg Horn.
-John
On 10/08/2010 02:08 AM, paul swed wrote:
Far as I know the telstar station was in andiver maine.
Believe my bell labs journals confirm that.
Additionally those journals describe all kinds of details of the telstar
program.
Being Bell Labs they included some long-term radiation tests of
time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
Could you tell me which book you have on mind ? I'd love to read the story.
I visited Telstar ground station in Pleumeur-Bodou, France once. There
is museum
there now, called Cite des Telecoms. They preserved original
horn-like antenna
Oops. I didn't know there was an Andover ME.
Thanks,
-John
===
j...@quik.com said:
There was / is? a ground station near Andover Massachusetts also. The
antenna was called a Hogg Horn.
Andover Massachusetts or Andover Maine?
Indeed its a common mistake that everyone thinks its ma.
Andover me was chosen because its was miles from any place and was in a hole
essentially.
They strung microwave towers to the place.
On Thu, Oct 7, 2010 at 9:06 PM, J. Forster j...@quik.com wrote:
Oops. I didn't know there was an Andover
, 2010 4:34 PM
To: 'Discussion of precise time and frequency measurement'time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
And at Andover, Comsat took it all down and cut it up to save taxes rather
than save history.
Lester B Veenstra MØYCM K1YCM
les...@veenstras.com
m0...@veenstras.com
In message 60aa6fcf-cf71-4e4c-a7cb-aab9f11a2...@rtty.us, Bob Camp writes:
The other answer is that DSP was not really available when the original
waveforms were developed. A modern system would not have a must be able to
work with manual delay lines and an oscilloscope requirement on it.
Well,
On 10/05/2010 11:52 PM, Bob Camp wrote:
Hi
Ok, the next layer to this onion is the antenna. At 100KC your antenna is 35X
smaller than it is on 80 meters foot for foot. In other words, your 100' tall
vertical on 80 equates to a3 foot tall antenna at 100 KC. QRP on 80 with a 3'
transmit
The coil allowed an ok match, but an antenna that is a tiny fraction of a
wavelength is going to be inefficient from ohmic loss in the antenna. You
could use a superconductor, but that brings another set of problems (matching
networks that also have low loss and can adapt to the changing
Actually building a loran recvr is not that hard if its only purpose is
timing/frequency. I lived in Michigan at the time and used the great lakes
chain. You only had to pick the strongest single station. So essentially a
simple front end and filters a bit like wwvb but much broader band. No
Hi
The bandwidth of anything close to a Loran signal is a *lot* wider than any of
the ham bands contemplated below 1 MHz.
There's the minor issue of getting the power company to put in a cable to the
house for your 1 Mw (capital M not lower case M) transmitter.
Even though it's pule, the RF
In message b69fdcaf-2b39-4575-b5cd-66a87fa1b...@rtty.us, Bob Camp writes:
Even though it's pule, the RF power is way beyond the sub 1 W
outputs currently contemplated on those bands. Signal to noise
*does* matter.
You know, there are other ways to skin that cat these days.
Old-time signals had
Hi
If you were starting from scratch there are a lot of things you could do. If
the intent is to put out something a Loran receiver will recognize ... not so
much.
Bob
On Oct 5, 2010, at 6:44 AM, Poul-Henning Kamp wrote:
In message b69fdcaf-2b39-4575-b5cd-66a87fa1b...@rtty.us, Bob Camp
A great thread by everyone. Oh to make the loran receivers work. But that is
indeed the past. Can not hear Europe on east coast.
But the question really is, what do you want to accomplish? I don't think
its a time stamp. Its just to easy to get it from GPS or the network. But
that could be a
One other comment
Would be great to be on 100KC
But I might guess some one in gov will wake up to suggest that it could
interfere with europe and not allow it. Or the treaties exist to forbid
reuse.
On Tue, Oct 5, 2010 at 8:57 AM, paul swed paulsw...@gmail.com wrote:
A great thread by everyone.
Were it me, I would change the model from a few high power
transmitters netted together to a ton of WiFi routers running
special software and netted together.
-Chuck Harris
paul swed wrote:
A great thread by everyone. Oh to make the loran receivers work. But that is
indeed the past. Can not
Hi
The bandwidth of anything close to a Loran signal is a *lot* wider than
any of the ham bands contemplated below 1 MHz.
There's the minor issue of getting the power company to put in a cable to
the house for your 1 Mw (capital M not lower case M) transmitter.
I was not contemplating a
Millisecond pulsars have been proposed as being suitable as comparable to
atomic clocks.
I don't know how much power they put out, but there are stories about people
with backyard size dishes receiving pulsars. Not sure if they're the right
kind of pulsar, though. But hey, when fabricating
Paul,
I'd bet there are 50+ LORAN timing receivers in the Boston area that could
receive and lock to an erzatz 5W signal from a simulator and small amp.
-John
=
A great thread by everyone. Oh to make the loran receivers work. But that
is
indeed the past. Can not hear Europe on
might not think it's the bees knees
73 Brice KA8MAV
- Original Message - From: jimlux jim...@earthlink.net
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Monday, October 04, 2010 11:39 PM
Subject: Re: [time-nuts] 60 KHz Receiver
In message aanlkti=-rejgqkaobgshqz=jfhcb5bd6zezy596ua...@mail.gmail.com, paul
swed writes:
Great a single carrier with a id every 10 min. Maybe that could be waved to
1 per hour or 24 hours.
There is no reason the ID could not be worked into your spreading function
so the time to send it would
In message aanlktinnoch7bsqsovhpn3qdohapg2pi2w5ynryjf...@mail.gmail.com, paul
swed writes:
One other comment
Would be great to be on 100KC
But I might guess some one in gov will wake up to suggest that it could
interfere with europe and not allow it. Or the treaties exist to forbid
reuse.
Here
On Oct 4, 2010, at 10:26 PM, Heathkid heath...@heathkid.com wrote:
One more note before I just read the posts for a while...
a) broadcasts aren't legal for US hams
Do some reading on telemetry and when broadcasts ARE allowed. I've been a
Ham for more than 30+ years.
Telemetry is
c) Whats wrong with GPS and/or WWV and/or CHU or whatever?
Nothing as long as they are TRANSMITTING.
Have you ever tried to adjust a local standard to better than 1 in 10E7
using WWV or CHU?
I have three Rb standards to go along with my two Thunderbolts.
And which one do you believe? If
Speaking of LORAN receivers, I have two Stanford Research Systems FS700
receivers here at work (in central VA) that I have been asked to dispose of.
They both have ovenized oscillators, and I have one original manual. The
antenna is on the roof, but I think it'll stay there ;-). Any offers for one
In message aanlktikt7xxjganyxgada1kqn4mkmq0xcw=b_2vln...@mail.gmail.com, Geor
ge Dubovsky writes:
Speaking of LORAN receivers, I have two Stanford Research Systems FS700
receivers here at work (in central VA) that I have been asked to dispose of.
I would love to lay my hands on one of them, so
John I would be interested but with loran down fo ever. Inexpensive.
On Tue, Oct 5, 2010 at 1:24 PM, George Dubovsky n4ua...@gmail.com wrote:
Speaking of LORAN receivers, I have two Stanford Research Systems FS700
receivers here at work (in central VA) that I have been asked to dispose
of.
Oct 2010 06:34:29
To: Discussion of precise time and frequency measurementtime-nuts@febo.com
Reply-To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
Hi
The bandwidth of anything close to a Loran signal is a *lot* wider
Kamp p...@phk.freebsd.dk
Sender: time-nuts-boun...@febo.com
Date: Tue, 05 Oct 2010 10:44:39
To: Discussion of precise time and frequency measurementtime-nuts@febo.com
Reply-To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
On Oct 5, 2010, at 1:15 PM, shali...@gmail.com wrote:
That is basically the sauce behind GPS. What is the power of the transmitters
on the satellites? It can't be much, and the signal on the ground is quite a
bit below the noise floor before correlation.
If I recall correctly, the transmit
It is a pulse transmitter. It makes short bursts of 10 or 12 pulses,
and then waits one GRI, and then does it again. I would think the
actual continuous power draw is around 10Kw.
The floor is open to anyone that wants to make the calculation.
-Chuck Harris
shali...@gmail.com wrote:
There's
In message 4cab888b.4040...@erols.com, Chuck Harris writes:
It is a pulse transmitter. It makes short bursts of 10 or 12 pulses,
and then waits one GRI, and then does it again. I would think the
actual continuous power draw is around 10Kw.
http://phk.freebsd.dk/photos/L9007M/dscf0458.jpg.html
Ok, but that is no megawatt!
Also, most of the transmitters were doing multi duty, handling
several chains simultaneously. That would up the average power
proportionately.
-Chuck Harris
Poul-Henning Kamp wrote:
In message4cab888b.4040...@erols.com, Chuck Harris writes:
It is a pulse
That's why I think an amateur timing LORAN network might be quite
feasable. Imagine a dozen 1 KW PEP A-LORAN stations with Rb and GPS
scattered around the US. There is no reason why a single transmitter could
not spoof a whole chain as it would not be used for navigation.
FWIW,
-John
And the Power Factor sucks, so there is a lot less real power being used.
-John
=
Ok, but that is no megawatt!
Also, most of the transmitters were doing multi duty, handling
several chains simultaneously. That would up the average power
proportionately.
-Chuck Harris
In message 50213.12.6.201.2.1286311041.squir...@popaccts.quikus.com, J. Fors
ter writes:
And the Power Factor sucks, so there is a lot less real power being used.
Yeah, 0.75 inductive is not exactly stellar, but it may not matter in
this case, as the Faroese power-grid is pretty sparse.
of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
And the Power Factor sucks, so there is a lot less real power being used.
-John
=
Ok, but that is no megawatt!
Also, most of the transmitters were doing multi duty, handling
-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
And the Power Factor sucks, so there is a lot less real power being used.
-John
=
Ok, but that is no megawatt!
Also, most of the transmitters were doing multi duty, handling
several chains simultaneously. That would up
In message 63077.12.6.201.2.1286310871.squir...@popaccts.quikus.com, J. Fors
ter writes:
That's why I think an amateur timing LORAN network might be quite
feasable. Imagine a dozen 1 KW PEP A-LORAN stations with Rb and GPS
scattered around the US. There is no reason why a single transmitter could
??
Paul, I've said that at least twice. A single Tx can emulate all the Txs
in a chain, since it is not used for navigation.
Just emulating the Master station would be fine, but I'm not certain that
all LORAN receivers would lock up, absent two or three received stations.
I'd set up my time
Yup running in circles.
Not in favor of soundblaster.
Looses accuracy
Am in favor of spreadspct
On Tue, Oct 5, 2010 at 5:06 PM, J. Forster j...@quik.com wrote:
??
Paul, I've said that at least twice. A single Tx can emulate all the Txs
in a chain, since it is not used for navigation.
Just
Because there is a now-useless installed base of high grade LORAN
receivers and comparators out there.
IMO, one Tx site could make them all live again.
-John
===
Why try to emulate technology from WWII ?
I would find it much more interesting to invent a good spread-spectrum
On 10/5/2010 3:59 PM, paul swed wrote:
Well crazy as it sounds if you are at 100 KC you might just want 1 loran
tower in a chain or even fewer. You only need 1 station not 3. Timing rcvrs
worked on one signal.
Frequency recovery works with master only, timing requires ranging data,
so three
measurement
time-nuts@febo.com
Reply-To: j...@quik.com, Discussion of precise time and frequency
measurement
time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
And the Power Factor sucks, so there is a lot less real power being
used.
-John
=
Ok, but that is no megawatt
@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
Hi
The bandwidth of anything close to a Loran signal is a *lot* wider than any
of the ham bands contemplated below 1 MHz.
There's the minor issue of getting the power company to put in a cable to the
house for your 1 Mw (capital M
and frequency
measurement
time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
And the Power Factor sucks, so there is a lot less real power being
used.
-John
=
Ok, but that is no megawatt!
Also, most of the transmitters were doing multi duty, handling
several
Poul,
Please explain to me how spread spectrum would enhance any process of frequency
or
time recovery ?
I just do not see it.
The reason for the spread spectrum used with the GPS is because all of the Birds
are in the same base frequency. Thus the spreading codes allow for distinction
measurement
time-nuts@febo.com
Reply-To: j...@quik.com, Discussion of precise time and frequency
measurement
time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
And the Power Factor sucks, so there is a lot less real power being
used.
-John
=
Ok
The localized LORAN is not that hard, IMO:
Many TNs have GPS Rbs.
At least one simulator has been built.
RF amps are easily available (ENI) for 100W pulse at 100 KHz.
Home Depot has 250' rolls of #14 THHN.
FWIW,
-John
Poul,
Please explain to me how spread spectrum would
On 10/05/2010 03:17 PM, J. Forster wrote:
Hi
The bandwidth of anything close to a Loran signal is a *lot* wider than
any of the ham bands contemplated below 1 MHz.
There's the minor issue of getting the power company to put in a cable to
the house for your 1 Mw (capital M not lower case M)
In message 4caba343.8c581...@cox.net, WB6BNQ writes:
Please explain to me how spread spectrum would enhance any process
of frequency or time recovery ?
Ok, it is late and I'm probably going to botch this, but I'll try:
The really short explanation is that your carrier transitions have
A couple of comments.
If loran c, I built the simulator for the transmitter and its available at
this website
Index of /simloran http://n4iqt.com/simloran/
But I left out various wave shaping filters because there was no intent to
xmit on the air.
KISS principal after all its all of $29 maybe. But
and frequency
measurement
time-nuts@febo.com
Subject: Re: [time-nuts] 60 KHz Receiver
And the Power Factor sucks, so there is a lot less real power being
used.
-John
=
Ok, but that is no megawatt!
Also, most of the transmitters were doing multi duty, handling
several chains
Hi
The other answer is that DSP was not really available when the original
waveforms were developed. A modern system would not have a must be able to
work with manual delay lines and an oscilloscope requirement on it.
Bob
On Oct 5, 2010, at 6:56 PM, Poul-Henning Kamp wrote:
In message
If you want to see a R E A L L Y big vlf antenna check out thest two
links. The first is about Soviet and US VLF antennas used for submarine
communications during the cold war, and the second has a copule of photo's at
the end of the powerpoint presentation of the installation in Cutler,
Its not just diurnal shift it plain old jumps anytime.
Have been monitoring for periods from the eastcoast using both a Tracor 577
and 2 X HP vlf117 rcvrs. All kinds of stuff occur.
But then the older gents know all about that reality.
Some may speak up.
I like you want a second source but will
All
All of this design and mod info is wonderful and great to fill an
engineering project workbook. You can spend about $500US and get a complete
HP
working system including GPS antenna which I have been monitiring to 10-12 for
14 mos now and it is stable
Yes indeed. I also have a hp rcvr. But Pauls request was for an alternate
approach.
I regularly matched LORAN C wwvb and GPS. It was nice having an alternate.
wwvb really isn't but its about all we have now.
On Mon, Oct 4, 2010 at 8:53 PM, k3...@aol.com wrote:
All
All of this design and mod
a thought...
73 Brice KA8MAV
- Original Message -
From: paul swed paulsw...@gmail.com
To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Sent: Monday, October 04, 2010 10:53 PM
Subject: Re: [time-nuts] 60 KHz Receiver
Yes indeed. I also have a hp rcvr. But Pauls
Heathkid wrote:
Doesn't someone on here with a Ham license have a Cs standard and
could put up a 1pps signal? Simply transmit your callsign within the
1pps (there has to be a way) and we have a non-Govt. time standard if
needed. A simple 1pps PSK-31 (or other digital mode) signal would
Uhmmm There is this station called WWV that does just that on
at least 5, 10 and 15MHz.
And if you are worried about it being broadcast by the US government,
you can always try CHU in Canada.
And if you are worried about the station being in North America,
there are time stations in
a) broadcasts aren't legal for US hams
b) ionospheric uncertainty in the skywave path makes this no better than
WWV
c) Whats wrong with GPS and/or WWV and/or CHU or whatever?
d) A cheap Rb would give you a local reference that is much better than
what you could do with receiving something
time-nuts@febo.com
Sent: Monday, October 04, 2010 11:39 PM
Subject: Re: [time-nuts] 60 KHz Receiver
Heathkid wrote:
Doesn't someone on here with a Ham license have a Cs standard and could
put up a 1pps signal? Simply transmit your callsign within the 1pps
(there has to be a way) and we have
One more note before I just read the posts for a while...
a) broadcasts aren't legal for US hams
Do some reading on telemetry and when broadcasts ARE allowed. I've been a
Ham for more than 30+ years.
b) ionospheric uncertainty in the skywave path makes this no better than
WWV
No
It hears WWVB quite well, but then it is a rather strong
signal.
Seriously, a HP3586B would be a fine receiver for a WWVB
timing setup, but way, way, overkill.
In other words, perfect for time-nuts!
-Chuck
Perry Sandeen wrote:
Gents,
Has anybody used a HP 3586B for a 60KHz receiver? If so,
Hi John,
Comparison to a local standard would probably work out better
with a TRF receiver than with a superhet... too many standards
to sort out.
It would be trivial to use a 3586B to detect the time signal, you
can hear it chugging along merrily.
-Chuck Harris
J. Forster wrote:
Hi Chuck,
the 3586s work fine for hearing wwvb.
But it does get interesting on tracking the signal. Its tough on the
eastcoast.
On Sun, Oct 3, 2010 at 7:45 PM, J. Forster j...@quik.com wrote:
Hi John,
Comparison to a local standard would probably work out better
with a TRF receiver than with a
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