When were you in Iceland and did you know or hear of a Sgt. Raymond?
Dave

--- In VLF_Group@yahoogroups.com, Walter Treftz <sjotrollet@...> wrote:
>
> Thats like the one in Iceland exept we didn't have the brass rail. Looks like
banks of Westinghouse MW-2 HF xmtrs in the background. We had a slew of them
also there. I maybe almost might have met him in Greenland as I was given a
choice of posting to Thule or Keflavik and (rightly) chose Iceland since I knew
there were girls in one place and none at the other (gimme a break, I was 21 at
the time)
>
> --- On Sun, 1/31/10, Paul <paul@...> wrote:
>
> From: Paul <paul@...>
> Subject: Re: [VLF_Group] Re:TFK Anomoly ?
> To: VLF_Group@yahoogroups.com
> Date: Sunday, January 31, 2010, 2:14 AM
>
>
>
>
>
>
>
>  
>
>
>
>
>
>
>
>
>
>       You know you're dealing with a Transmitter when the
>
> PA and PSU have separate rooms and the loading coils
>
> have their own houses!
>
>
>
> Here is a photo of an AN/FRT-4 that Walter mentioned,
>
>
>
> http://www.virhisto ry.com/navy/ xmtrs/frt4- 02.jpg
>
>
>
> Drool!!
>
>
>
> Snippets from the same site...
>
>
>
> "...we learned that the narrow shift FSK keying put the
>
>    carrier alternately on either side of the center of the
>
>    tuned system."
>
>
>
> "The antenna was one mile long, about 800 to 1200 feet up,
>
>    and was tuned with a massive inductor made of five inch
>
>    diameter Litz wire."
>
>
>
> More to drool over, some antenna patching 'panels' used
>
> in shore stations,
>
>
>
> http://www.virhisto ry.com/navy/ xmtrs/tuner/ xmtr-patch- 02.JPG
>
>   http://www.virhisto ry.com/navy/ xmtrs/tuner/ xmtr-patch- 01.JPG
>
>
>
> Another engineer writes about his time at Thule,
>
>
>
> "An interesting transmitter (FRT-4) we used for an
>
>     unspecified purpose was this huge "walk-in" high powered
>
>     transmitter (55 kw) built by General Electric. It had a
>
>     brass rail in front of it and those so incline could stand
>
>     at the rail and look at the powerful vacuum tubes glowing
>
>     in the window. For electronics technicians that was the
>
>     next best thing to TV. The antenna for this transmitter
>
>     was 50 feet (15 m) taller than the Empire State Building -
>
>     something over 1240 feet tall. It was the tallest antenna
>
>     in the world for many years, until larger TV antennas
>
>     were constructed. High winds across the antenna created
>
>     so much static electricity that blue arcs were common
>
>     on the transmission line inside the building and jumping
>
>     across the antenna insulators outside that were rated at
>
>     1 million volts."
>
>
>
> More from that fellow at http://thulegreenla ndsite.com/
>
>
>
> It must have been impressive when everything was working fine,
>
> must have been *very* impressive when anything went wrong!
>
>
>
> Thanks Walter for sharing a few memories.  You should put
>
> them all on a website!
>
> --
>
> Paul Nicholson
>
> --
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>

I was there (Grindavik) from Xmas of '58 to Xmas of '59 the first time and (and
believe it or not volunteered to return) in '60 for about 8 months. 2nd time I
was assigned to Project Quickfix which was basically involved in getting the
military HF A/G comm systems converted to SSB. WX was nasty usually but
Reykjavik was delightful in contrast to US cities.
   Sorry, didn't know your friend (at least not well as don't recall the
name). If he was in AACS outfit, maybe he was at the rcvr site or in the comm
center down on the base.
73
Walt

--- On Mon, 2/1/10, dave <e_trician@...> wrote:

From: dave <e_trician@...>
Subject: [VLF_Group] Re:TFK Anomoly ?
To: VLF_Group@yahoogroups.com
Date: Monday, February 1, 2010, 3:07 AM







 









       When were you in Iceland and did you know or hear of a Sgt. Raymond?

Dave



--- In VLF_Group@yahoogrou ps.com, Walter Treftz <sjotrollet@ ...> wrote:

>

> Thats like the one in Iceland exept we didn't have the brass rail. Looks like
banks of Westinghouse MW-2 HF xmtrs in the background. We had a slew of them
also there. I maybe almost might have met him in Greenland as I was given a
choice of posting to Thule or Keflavik and (rightly) chose Iceland since I knew
there were girls in one place and none at the other (gimme a break, I was 21 at
the time)

>

> --- On Sun, 1/31/10, Paul <paul@...> wrote:

>

> From: Paul <paul@...>

> Subject: Re: [VLF_Group] Re:TFK Anomoly ?

> To: VLF_Group@yahoogrou ps.com

> Date: Sunday, January 31, 2010, 2:14 AM

>

>

>

>

>

>

>

>  

>

>

>

>

>

>

>

>

>

>       You know you're dealing with a Transmitter when the

>

> PA and PSU have separate rooms and the loading coils

>

> have their own houses!

>

>

>

> Here is a photo of an AN/FRT-4 that Walter mentioned,

>

>

>

> http://www.virhisto ry.com/navy/ xmtrs/frt4- 02.jpg

>

>

>

> Drool!!

>

>

>

> Snippets from the same site...

>

>

>

> "...we learned that the narrow shift FSK keying put the

>

>    carrier alternately on either side of the center of the

>

>    tuned system."

>

>

>

> "The antenna was one mile long, about 800 to 1200 feet up,

>

>    and was tuned with a massive inductor made of five inch

>

>    diameter Litz wire."

>

>

>

> More to drool over, some antenna patching 'panels' used

>

> in shore stations,

>

>

>

> http://www.virhisto ry.com/navy/ xmtrs/tuner/ xmtr-patch- 02.JPG

>

>   http://www.virhisto ry.com/navy/ xmtrs/tuner/ xmtr-patch- 01.JPG

>

>

>

> Another engineer writes about his time at Thule,

>

>

>

> "An interesting transmitter (FRT-4) we used for an

>

>     unspecified purpose was this huge "walk-in" high powered

>

>     transmitter (55 kw) built by General Electric. It had a

>

>     brass rail in front of it and those so incline could stand

>

>     at the rail and look at the powerful vacuum tubes glowing

>

>     in the window. For electronics technicians that was the

>

>     next best thing to TV. The antenna for this transmitter

>

>     was 50 feet (15 m) taller than the Empire State Building -

>

>     something over 1240 feet tall. It was the tallest antenna

>

>     in the world for many years, until larger TV antennas

>

>     were constructed. High winds across the antenna created

>

>     so much static electricity that blue arcs were common

>

>     on the transmission line inside the building and jumping

>

>     across the antenna insulators outside that were rated at

>

>     1 million volts."

>

>

>

> More from that fellow at http://thulegreenla ndsite.com/

>

>

>

> It must have been impressive when everything was working fine,

>

> must have been *very* impressive when anything went wrong!

>

>

>

> Thanks Walter for sharing a few memories.  You should put

>

> them all on a website!

>

> --

>

> Paul Nicholson

>

> --

>

>

>

>

>

>

>

>

>

>

>

>

>

>

>

>

>

>

>

>

>

>

>

> [Non-text portions of this message have been removed]

>

























[Non-text portions of this message have been removed]

Mark,
I just picked up a VLF rig that i just couldn't pass up. It is a old Rycom
R1307A/GR. It is labeled a receiver but I suspect it was used as a selective
level meter from its appearance and similarity to newer solid state rigs.
Actually could be called a hybrid as, in addition to its 13 tubes, I noticed it
has a couple of transistors! It cover 3hz to 810 khz. For $200, I couldn't pass
it up. It seems pretty sensitive, especially when coupled to my active antenna.
It, (the MFJ) only tunes down to 300khz, so I'm currently working on getting it
to tune lower, and get it away from my noise ridden house! There's references
and info for it the web plus a down-loadable manual available too. I noticed one
recently on Craig's list up in the bay area. I passed on it to get this one on
ebay. Same price though.

John


> Hello,
>
> I would like to see a list of VLF equipment over the counter type
> that could be used for reception of VLF,I have built a few home built
receivers,But my hobby has now carried into the Antique radio world.
> It would be nice to see individual categories,such as electronic test
equipment that could be used for reception,then antique radios,to the new
devices,,
> as now the information is just randomly scattered everywhere ;)
>
> Mark
>

I just looked that unit up,,wow that is a beauty good find!
 
Mark





--- On Tue, 2/2/10, lowalacrity <jcstumm@...> wrote:


From: lowalacrity <jcstumm@...>
Subject: [VLF_Group] Re: VLF Receiving equipment list?
To: VLF_Group@yahoogroups.com
Date: Tuesday, February 2, 2010, 7:56 AM


 



Mark,
I just picked up a VLF rig that i just couldn't pass up. It is a old Rycom
R1307A/GR. It is labeled a receiver but I suspect it was used as a selective
level meter from its appearance and similarity to newer solid state rigs.
Actually could be called a hybrid as, in addition to its 13 tubes, I noticed it
has a couple of transistors! It cover 3hz to 810 khz. For $200, I couldn't pass
it up. It seems pretty sensitive, especially when coupled to my active antenna.
It, (the MFJ) only tunes down to 300khz, so I'm currently working on getting it
to tune lower, and get it away from my noise ridden house! There's references
and info for it the web plus a down-loadable manual available too. I noticed one
recently on Craig's list up in the bay area. I passed on it to get this one on
ebay. Same price though.

John


> Hello,
>
> I would like to see a list of VLF equipment over the counter type
> that could be used for reception of VLF,I have built a few home built
receivers,But my hobby has now carried into the Antique radio world.
> It would be nice to see individual categories,such as electronic test
equipment that could be used for reception,then antique radios,to the new
devices,,
> as now the information is just randomly scattered everywhere ;)
>
> Mark
>











[Non-text portions of this message have been removed]

A little bit better but some local noise I just cannot get rid of.

http://s5.viastreaming.net/7050/

Try the port 80 link.

Regards,

Brian

Whistlers, one or two per minute.

Todmorden,
   http://abelian.org/vlf/test.html

Cumiana,
   http://67.207.143.181/vlf15.m3u

--
Paul Nicholson
--

Well it was a waste of time sending that activity report,
Yahoo took an hour and 12 minutes to forward it.  Of course
the activity has died down now.

Did Microsoft succeed in buying Yahoo?   Quality has dropped,
very slow and loses messages.  Six months ago you could expect
only a few minutes for a message to go through.  Useless now
for alerts.
--
Paul Nicholson
--

Paul

It seems to me that when I forward a message to the group from the
Yahoogroup Web site, it is almost never delayed.
The delays happen when I use  my mailbox to forward messages

Jean-Louis, testing the Yahoo propagation delay
(message sent from my mailbox at 05:59 UTC)



Le 03/02/2010 21:26, Paul a écrit :
>
> Well it was a waste of time sending that activity report,
> Yahoo took an hour and 12 minutes to forward it.  Of course
> the activity has died down now.
>
> Did Microsoft succeed in buying Yahoo?   Quality has dropped,
> very slow and loses messages.  Six months ago you could expect
> only a few minutes for a message to go through.  Useless now
> for alerts.
> --
> Paul Nicholson
> --
>
>
>
>
>
> ------------------------------------
>
> Post message: VLF_Group@yahoogroups.com
> Subscribe:  VLF_Group-subscribe@yahoogroups.com
>
> Members may request the option of receiving just one e-mail per day which
contains all of the days comments. Simply send an e-mail to the list owner
(VLF_Group-owner@yahoogroups.com) requesting digest mode.Yahoo! Groups Links
>
>
>
>
>
>
>

Brian - I assume that this is the rx in the valley and not up North; also, what
is the difference between the port 80 and Flash Player link?
The flash player works for me.

Bob

--- In VLF_Group@yahoogroups.com, "Brian" <side7@...> wrote:
>
> A little bit better but some local noise I just cannot get rid of.
>
> http://s5.viastreaming.net/7050/
>
> Try the port 80 link.
>
> Regards,
>
> Brian
>

Jean-Louis a écrit:

  > It seems to me that when I forward a message to the
  > group from the  Yahoogroup Web site, it is almost never
  > delayed.

Good idea.  I can create myself a Yahoo account and use it for
sending activity alerts to the group.

A little activity tonight.  Here's an A/V containing some
nice tweeks and a whistler.  1 minute, 1.3Mbyte

   http://abelian.org/vlf/tmp/wh1265305982.asf

Warning - some loud sferics in there.  Anyone wondering why we
leave plenty of headroom on VLF systems will see the reason!

Some lovely curves to the tweeks.   Bearing against frequency
seems to be very twisty during day to night transition.

So far, all whistlers seen have converged from all directions
on the display.
--
Paul Nicholson
--

Beautiful, Paul.  These would make great science-museum displays that
should mesmerize even dolts for some time awaiting the next spectacular
dynamic, maybe igniting wonder about what makes it happen.

Tom

The receiver is here in the valley Bob sitting up on the roof. The difference
between using port 80 and the flash player is the player is embedded on the web
page and port 80 can be used if one wishes to open the stream in WinAmp on their
computer. The flash player would be the simplest route to go.

Brian


--- In VLF_Group@yahoogroups.com, "bob71741" <bob71741@...> wrote:
>
> Brian - I assume that this is the rx in the valley and not up North; also,
what is the difference between the port 80 and Flash Player link?
> The flash player works for me.
>
> Bob
>
> --- In VLF_Group@yahoogroups.com, "Brian" <side7@> wrote:
> >
> > A little bit better but some local noise I just cannot get rid of.
> >
> > http://s5.viastreaming.net/7050/
> >
> > Try the port 80 link.
> >
> > Regards,
> >
> > Brian
> >
>

Hello Group. This is my first post.

I just acquired a Cushman CE-24B and believe it is in working order now that I
replaced a smashed meter.
I can just barely hear the 60kHz WWV using 20 feet of wire as a receiving
antenna.

Does anyone here know of a source for a free operator's manual or maintenance
manual?
A schematic would be helpful.

I would be grateful for any operating tips you can give for using this unit as a
receiver.
I realize that with the bandwidth selection of
either 100 Hertz or 10 Hertz, it is rather sharp for hearing voice or anything
other than CW.
Maybe there is a handy method for bypassing the sharp filtering.

I expect to add an outboard toroid transformer to help match a random wire to
the input jack.

Thanks for reading.

--Don

Infrequent and faint whistlers heard right now (Feb. 5, 1930 UTC) on the
Todmorden stream.


John

We seem to be getting a few whistlers every night lately.

Here is a fairly strong diffuse one, about 15 secs in,
900kByte A/V 43 seconds,

   http://abelian.org/vlf/live/wh1265503682.asf

I let the sample run on a bit for a few tweeks...

Still all whistlers seem to show as a ring.   I was wondering
if the signal is circularly polarised.   Perhaps the pixels
should be coloured according to phase angle?  Hmm, not sure if
that would mean anything.
--
Paul Nicholson
--

Hello Don, this is my first post too. I'm not familiar with the Cushman - I
spent a few minutes looking around, and a guy on eBay is offering a CE-24 with
the manual on CD-ROM. He might be willing to burn you a copy, but I imagine he
would want a few dollars.

I'm using a 50-foot longwire antenna. One end connects to a Mini-Circuits TT25-1
transformer (rated 20 KHz - 30 MHz) which "sort of" matches to a length of
50-ohm coax.
My "front end" is a VLF upconverter kit I bought from a guy in Washington -


http://home.att.net/~jacksonharbor/lfconv.htm

The upconverter feeds into a little Sangean ATS-803A receiver. Here in Arizona,
the WWVB signal on 60 KHz comes in very well. I added a signal strength monitor
to the Sangean, and I will be monitoring the DC voltage with a cheap datalogger.
I assembled this system about a year ago, but there was no solar flare activity
at the time, so I got bored and tore it down. I just started it again a couple
of days ago.

- Steve

--- In VLF_Group@yahoogroups.com, "ninevictor" <WN9V@...> wrote:
>
> Hello Group. This is my first post.
>
> I just acquired a Cushman CE-24B and believe it is in working order now that I
replaced a smashed meter.
> I can just barely hear the 60kHz WWV using 20 feet of wire as a receiving
antenna.
>
> Does anyone here know of a source for a free operator's manual or maintenance
manual?
> A schematic would be helpful.
>
> I would be grateful for any operating tips you can give for using this unit as
a receiver.
> I realize that with the bandwidth selection of
> either 100 Hertz or 10 Hertz, it is rather sharp for hearing voice or anything
other than CW.
> Maybe there is a handy method for bypassing the sharp filtering.
>
> I expect to add an outboard toroid transformer to help match a random wire to
the input jack.
>
> Thanks for reading.
>
> --Don
>

Joel,

There is one more change I want to make to the receiver tonight but it should be
ready to send Wednesday. As you can see there is plenty of interference today
but it should work very well at your location where it is quiet. Five modes are
visable and the first SR mode would be better except for the fact my soundcard
does not favor that low of frequency.

http://electricterra.com/Data/VLFBeacon/1002081700.jpg

Regards,

Brian

> http://electricterra.com/Data/VLFBeacon/1002081700.jpg

Hi Brian,

The receiver performance is looking very promising indeed. I'm looking forward
to bringing this one up online to compliment the VLF receiver.

Joel

I was off on the rolloff on the high end. It begins near 70Hz. but I think it
will work well up to the 100Hz. range you need for lightning research Joel.
After the change tonight we will see how it performs overnight.

--- In VLF_Group@yahoogroups.com, "kg4inu" <w4gon@...> wrote:
>
> > http://electricterra.com/Data/VLFBeacon/1002081700.jpg
>
> Hi Brian,
>
> The receiver performance is looking very promising indeed. I'm looking forward
to bringing this one up online to compliment the VLF receiver.
>
> Joel
>

You will also find the cylindrical stylus due to it's added capacitance will
help on the lowend for the first mode verses the 3 meter whip the receiver is
now connected to. Sorry for off topic discussion to the group.

Some SIDs today from ongoing flare activity

www.electricterra.com/Ernst/20100208_VLFXY.jpg


Ernst 52N 8E

Well, is US Loran-C off-air?  The official termination notice said 2000Z
today was the end except for shared Russian and Canadian chains.

Tom

I've received e-maiil from around the US that several are off.  One report
said the TX near him went off between 2000 and 2200.

Kurt

----- Original Message -----
From: "Tom Becker" <gtbecker@...>

: Well, is US Loran-C off-air?  The official termination notice said 2000Z
: today was the end except for shared Russian and Canadian chains.

Joel,

This is about it for the receiver. Response is good up to 90Hz. and flat. There
is alot of wind noise today on the 3 meter whip as well as more then one washer
and dryer running at the neighbors. I think this system will work well for you
where it is quiet. The deep notch at 60Hz. is aided by having SpecLab do a
little additional filtering. I wanted to see as close as I could get to 60Hz. So
start digging a hole in the back yard for the support pole.

http://electricterra.com/Data/VLFBeacon/1002092200.jpg

> http://electricterra.com/Data/VLFBeacon/1002092200.jpg

This looks great!

Joel

Last Sunday (Feb 7) morning, between 06:00 and 06:25z I was hearing
strong echoes of myself on 7 MHz. The delay was around 90mS with a
Doppler shift of -50 Hz. They  appeared and disappeared quite suddenly.
Today (Feb 9) I heard them again between 21:45z and 22:00z, which is 30
minutes before our Sunset, the delay was slightly longer, around 115 mS
and the Doppler was less, about -25Hz. I think these were Magnetospheric
ducted echoes, which is a rather similar propagation mode to VLF
whistlers. I wondered if there were any VLF whistlers in progress at
these times? I can't monitor VLF effectively  here  because of the high
noise level.


Percy    KF2AT      NYC


[Non-text portions of this message have been removed]

I am a student at Morehead State University in Kentucky and I need some
advice. We (me and my teacher) are going to create a permanent VLF audio
stream over the internet. We have been using the article by Tom Becker
in the July/August 2008
<http://theinspireproject.org/uploads/Inspire_Journal/Recent/INSPIREJour\
nalJuly2008.pdf>   issue as a reference for what we are going to do as
far as the setup goes. If anyone has any recommendations on if the
design can be improved it would be lots of help.

Thanks
--Douglas


[Non-text portions of this message have been removed]

Hi,
I ahve upload a file with my SID events recorded yesterday. I monitored 18.3kHz
form Italy.

Ciao
Roberto Battaiola 45.43N 9.35E

--- In VLF_Group@yahoogroups.com, "Ernst" <e.d.schmitter@...> wrote:
>
> Some SIDs today from ongoing flare activity
>
> www.electricterra.com/Ernst/20100208_VLFXY.jpg
>
>
> Ernst 52N 8E
>

Hi Ernst,
I have uploaded a file with SID events recorded today. I monitored HWU on 18.3
kHz.

Ciao
Roberto Battaiola 45.4N 9.35E

--- In VLF_Group@yahoogroups.com, "Ernst" <e.d.schmitter@...> wrote:
>
> Some SIDs today from ongoing flare activity
>
> www.electricterra.com/Ernst/20100208_VLFXY.jpg
>
>
> Ernst 52N 8E
>

> I wondered if there were any VLF whistlers in progress at
> these times?

http://abelian.org/vlf/event.php?stream=vlf19&id=1265748707

There was a bit of activity at around 2100UTC here today. Also in the early
morning hours...

Joel