"JUN Naval Radio Station (NAVRADSTA) Lewes is opened. Operations are established at Battery Hunter. Two TROPO antennas are installed atop Battery Hunter. The NAVRADSTA Lewes mission is to provide communications to the USS Northampton and USS Wright, called ‘doomsday ships”, their purpose is to be a National Emergency Command Post Afloat (NECPA) for the President in the event of a strategic nuclear exchange. There are 2 other NECPA shore stations established in 1968, one in North Carolina the other in Mass."
"1968 NO DATE The Navy moves the Tropo antennas from atop Battery Hunter to a location further inland."
Basic equipment list (antenna omitted) for AN/TPS-1D according to:
http://hereford.ampr.org/millist/m8.html and
http://ed-thelen.org/ST-44-188-2G.pdf (has pictures of all this stuff)
CM-36A, Signal comparator
IP-141A, Azimuth and range indicator
RT-212A Receiver-transmitter, Radar, 1220-1350 MHz, 600 kw, 360-400 pps, 2.0 microsecond pulses. Runs on 115 VAC 400 Hz
MD-144A, Radar modulator
519's radar was based on AN/TPS-1D with a larger antenna. You also had ECCM.
According to http://ed-thelen.org/USAADSDigest1965chapter3.pdf :
AN/FPS-36:
This radar is the basic AN/TPS-1D
to which a 40-by 11-foot antenna was added.
Phase I ECCM kit was added.
Part of the ECCM tactics were to have two radars operating through one antenna at different frequencies. You said you had this type of setup.
According to http://ed-thelen.org/USAADSDigest1965chapter3.pdf :
AN/FPS-56:
Dual AN/FPS-36 radars that transmit and receive
with one 40- by 11-foot antenna.
This provides two operating channels that
function on different frequencies.
As stated above there was ECCM.
According to http://ed-thelen.org/USAADSDigest1965chapter3.pdf" :
AN/FPS-61:
AN/FPS-56 with the addition of ECCM capabilities.
All this was tied back to Ft. Meade, SAGE etc.
According to http://ed-thelen.org/USAADSDigest1965chapter3.pdf :
AN/FPS-69:
AN/FPS-61 integrated with the Nike Hercules system.
According to http://ed-thelen.org/72digest3.html
The ECCM console for an AN/FPS-69 was an AN/FPA-15
Earl,
Did the AN/FPS-69 still use CM-36A, IP-141A, RT-212A and MD-144A as it's basic components????
If so this would have been some of the equipment off to the side under the shaft to the radar dish? (Dual setups)
Also you said the console in 519 looked like the one in
http://ed-thelen.org/USAADSDigest1965chapter3.pdf Figure 36 left side setup.
Yo! Jason
Wow! You hit the mother lode.
On Mon, 23 Nov 2009 01:09:18 +0000, you wrote:
>If I kept up with what you were telling me we had what comes out to be an AN/FPS-69
Or very close. If they made a modification the US Army, Office of Numbers and Letters, would issue a new designation, thus ensuring the generation of an infinite amount of change orders.
>
http://ed-thelen.org/ST-44-188-2G.pdf (has pictures of all this stuff)
This is what I was talking about, "Figure 1. Radar set AN/TPS-lG (one-stack array)".
Page 4 or in the PDF reader 10/43.
In the radar room they were stacked three high and two wide.
Two sets back to back, one faced north the other south.
>519's radar was based on AN/TPS-1D with a larger antenna. You also had ECCM.
Yes! It was behind the tracking console.
>All this was tied back to Ft. Meade, SAGE etc.
>
Yes
>Did the AN/FPS-69 still use CM-36A, IP-141A, RT-212A and MD-144A as it's basic components????
I do not have a clue
IFF “ Identification Friend or Foe” started out as a military device.
It is now called a transponder.
The IFF unit had only 64 codes the current transponders have 4096.
It's an octal numerical system having four digit windows each going from 0 to 7.
Traffic control centers interrogate the aircraft with its radar signal requesting a response.
http://en.allexperts.com/q/Aerospace-Aviation-2437/Dear-Sir-please.htm
http://hereford.ampr.org/millist/m8.html
AN/TPS-1G
Radar set, Air-search,
Major components:
PP-674A,
AS-673, Antenna, 1300 MHz, Radar dish, Used with TPS-1G.
CM-36A, Signal comparator, Part of TPS-1G.
AB-498, Antenna Base, Supports AS-673, Part of TPS-1G.
IP-141A, Azimuth and range indicator, Part of TPS-1G.
RT-212A Receiver-transmitter, Radar, 1220-1350 MHz, 600 kw, 360-400 pps, 2.0 microsecond pulses, 115 VAC 400 Hz, Part of AN/TPS-1G, TM 11-5840-222-15.
MD-144A, Radar modulator, Part of TPS-1G.
137 Mile maximum range,
1220-1350 MHz, 600 kw,
360-400 pps, 2.0 microsecond pulses,
115 VAC 400 Hz from PU-107 or PU-254,
3023 Lbs, TM-11-5840-222-15
http://ed-thelen.org/ST-44-188-2G.pdf
On Sun, 22 Nov 2009 00:04:38 +0000, you wrote:
>
>John and Earl,
>
>HVAC ductwork in concrete is usually just normal galvanized sheet metal duct that has been laid in before the pour. This is exactly what is right next to the terra cotta pipe.
True! But it seems puny and undersized.
>
>Looks like the terra cotta pipe heads toward the block wall that our new power distribution boxes are mounted on.
>When we were first trying to track down existing conduits to get from the corridor to the muffler gallery I was digging with a digging bar at the base of that wall.
>If memory serves me right there was a mysterious terra cotta sleeve under that wall about the same diameter as the one you just unearthed.
>Earl do you remember that block wall being there when you were?
I am lost
On the subject of walls. I do not remember the radar room being as big as now is.
When I entered the radar's would be in front of me, offset to the right of the antenna shaft.
If I turned left and walked toward the wall, there was a closet, about three feet deep where the radar test equipment was kept.
Making a right turn and facing north I expected to see a wall, giving the room a width (N-S) of less than eight feet.
Also, there was no sign of a kitchen.
>My guess is that terra cotta pipe is a cable chase for all your radar cables between the radar room and the console and equipment rooms.
We really did not have too many wires from the radar room.
There were maybe 5 to 8 wires syncing us with the antenna's position and a video line that came from the ECCM console located behind the tracking console.
A LOT of wires between us and the tracking console, also I assume there were a bunch between the radar and ECCM console.
>The other thing I'm noticing is that the plywood floor that we just tore out was put in after the radar station.
>Why? Because of all the utilities that had no where to go in the plywood.
>I'm also thinking the 2X10?'s are part of the later floor job.
>Earl was your floor some type of removable grating not plywood?
Correct! We had what I would consider a standard data center floor with removable panels.
I might also add that the floor was kept clean, bright and shinny.
Earl
created 11-27-2009
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