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Old June 19th 04, 08:03 PM
Jim Hampton
 
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"KØHB" wrote in message
ink.net...

"Len Over 21" wrote


Which one of super chief's ships had over 30 HF transmitters,
and all of them 1 KW or higher?


All "big-time radio communications experience" does not happen on HF,
30 transmitters is not a remarkable number of transmitters, and power
levels of a mere 1KW are distinctly small-time. But to satisfy your
criteria, here are a few examples of my assignments with more than 30
transmitters, 1KW or larger.

At NAVRADSTA(T) Barrigada 78 transmitters none smaller than 5KW
(AN/FRT-39). Largest was 200KW (AN/FRT-72).
At USS Annapolis AGMR-1 48 transmitters, none smaller than 1KW
(AN/URT-23). Largest was 40KW (AN/FRT-40).
At NAVRADSTA(T) Driver 55 transmitters none smaller than 10KW
(AN/FRT-39B). Largest was 600KW (AN/FRT-100).
At COMSECONDFLT, uncounted transmitters situated on more than 150 ships,
including 8 aircraft carriers.

How many 200 KW and 600KW transmitters did the super corporal of ADA
operate?

With all kind wishes,

Hans Brakob
Master Chief Radioman, US Navy



Hello, Hans

Most interesting, indeed. Just out of curiosity, do you have an idea of how
much power the Navy uses on the VLF stuff? Just curious. When you start
talking 6 zeros in the power level, three zeroes *does* start to look pretty
small time

Best regards from Rochester, NY
Jim AA2QA



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Old June 19th 04, 09:43 PM
John Siegel
 
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Jim Hampton wrote:
"KØHB" wrote in message
ink.net...

"Len Over 21" wrote


Which one of super chief's ships had over 30 HF transmitters,
and all of them 1 KW or higher?


All "big-time radio communications experience" does not happen on HF,
30 transmitters is not a remarkable number of transmitters, and power
levels of a mere 1KW are distinctly small-time. But to satisfy your
criteria, here are a few examples of my assignments with more than 30
transmitters, 1KW or larger.

At NAVRADSTA(T) Barrigada 78 transmitters none smaller than 5KW
(AN/FRT-39). Largest was 200KW (AN/FRT-72).
At USS Annapolis AGMR-1 48 transmitters, none smaller than 1KW
(AN/URT-23). Largest was 40KW (AN/FRT-40).
At NAVRADSTA(T) Driver 55 transmitters none smaller than 10KW
(AN/FRT-39B). Largest was 600KW (AN/FRT-100).
At COMSECONDFLT, uncounted transmitters situated on more than 150 ships,
including 8 aircraft carriers.

How many 200 KW and 600KW transmitters did the super corporal of ADA
operate?

With all kind wishes,

Hans Brakob
Master Chief Radioman, US Navy




Hello, Hans

Most interesting, indeed. Just out of curiosity, do you have an idea of how
much power the Navy uses on the VLF stuff? Just curious. When you start
talking 6 zeros in the power level, three zeroes *does* start to look pretty
small time

Best regards from Rochester, NY
Jim AA2QA



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QST had a story many years ago when the VLF station in Maine was first
opened. I remember
a picture of a man standing up inside the coax. Power was in the 2
Megawatt range.
John

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Old June 21st 04, 02:45 AM
Jim Hampton
 
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"John Siegel" wrote in message
...


Jim Hampton wrote:
"KØHB" wrote in message
ink.net...

"Len Over 21" wrote


Which one of super chief's ships had over 30 HF transmitters,
and all of them 1 KW or higher?


All "big-time radio communications experience" does not happen on HF,
30 transmitters is not a remarkable number of transmitters, and power
levels of a mere 1KW are distinctly small-time. But to satisfy your
criteria, here are a few examples of my assignments with more than 30
transmitters, 1KW or larger.

snip

How many 200 KW and 600KW transmitters did the super corporal of ADA
operate?

With all kind wishes,

Hans Brakob
Master Chief Radioman, US Navy




Hello, Hans

Most interesting, indeed. Just out of curiosity, do you have an idea of

how
much power the Navy uses on the VLF stuff? Just curious. When you

start
talking 6 zeros in the power level, three zeroes *does* start to look

pretty
small time

Best regards from Rochester, NY
Jim AA2QA

QST had a story many years ago when the VLF station in Maine was first
opened. I remember
a picture of a man standing up inside the coax. Power was in the 2
Megawatt range.
John

John,

I wouldn't want to be standing up inside the coax when they fire *that* baby
up )

73 from Rochester, NY
Jim AA2QA



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Old June 20th 04, 05:28 AM
KØHB
 
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"Jim Hampton" wrote

Just out of curiosity, do you have an idea of how
much power the Navy uses on the VLF stuff?


I don't know current QRO, but in the 70's the COMSUBLANT transmitter at
Cutler was 1,700,000W on 15.9KHz and the COMSUBPAC transmitter at Jim
Creek was 2,200,000W on 17.1KHz. The ELF site at Clam Lake is
reportedly engineered for just under 1,000,000,000W at somewhere just
above powerline QRG, 75Hz if I remember correctly. The antenna is just
under 29 miles long.

73, de Hans, K0HB



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Old June 21st 04, 02:43 AM
Jim Hampton
 
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"KØHB" wrote in message
ink.net...

"Jim Hampton" wrote

Just out of curiosity, do you have an idea of how
much power the Navy uses on the VLF stuff?


I don't know current QRO, but in the 70's the COMSUBLANT transmitter at
Cutler was 1,700,000W on 15.9KHz and the COMSUBPAC transmitter at Jim
Creek was 2,200,000W on 17.1KHz. The ELF site at Clam Lake is
reportedly engineered for just under 1,000,000,000W at somewhere just
above powerline QRG, 75Hz if I remember correctly. The antenna is just
under 29 miles long.

73, de Hans, K0HB


Hello, Hans

And *we* are paying for it
Those are *big* qro rigs LOL

73 from Rochester, NY
Jim AA2QA



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Old June 21st 04, 03:59 AM
N2EY
 
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In article , "Jim Hampton"
writes:

"KØHB" wrote in message
link.net...

"Jim Hampton" wrote

Just out of curiosity, do you have an idea of how
much power the Navy uses on the VLF stuff?


I don't know current QRO, but in the 70's the COMSUBLANT transmitter at
Cutler was 1,700,000W on 15.9KHz and the COMSUBPAC transmitter at Jim
Creek was 2,200,000W on 17.1KHz. The ELF site at Clam Lake is
reportedly engineered for just under 1,000,000,000W at somewhere just
above powerline QRG, 75Hz if I remember correctly. The antenna is just
under 29 miles long.

73, de Hans, K0HB


Hello, Hans

And *we* are paying for it
Those are *big* qro rigs LOL

Sort of.

2,200,000W looks like a lot -and it is a lot, in the world of radio
transmitters. 2.2 million watts!

But compare it to other technologies....

2.2 million watts is only 2200 kW. At 746 W per HP, that works out to just
under 2,950 HP. You could get more than that out of a single 1950s era diesel
electric railroad locomotive, or a WW2 bomber - or about a dozen SUVs.

Compared to the power of even a "small" USN ship or submarine...

The 1 gigawatt ELF system is a bit bigger, of course. Count the cars on the
Genessee Expressway where it crosses Jefferson Road at rush hour and see how
quickly you get to the million-horsepower mark...

73 de Jim, N2EY
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