John
Registered: 08/13/07
Posts: 68
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Artillery
Moderator
Registered: 01/25/07
Posts: 126
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Reply with quote | #2 |
John,
After a little research I've come to the (hopefully correct) conclusion that the antenna so proudly displayed on the bow of the USS Little Rock is a "discone antenna".
From Wikipedia I found that a discone antenna is a version of a biconical antenna, omnidirectional, vertically polarized and that it exhibits unity gain. Further, it is exceptionally wideband with a radiation pattern in the horizontal plane.
Further, we really DO need an RM to explain what all this means!!
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Art Tilley MT2
1962-1963 |
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Artillery
Moderator
Registered: 01/25/07
Posts: 126
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Reply with quote | #3 |
At the recent reunion in Buffalo I was given a large detailed schematic of the USS Little Rock (CLG-4 configuration) by Jim Embrey. Jim had obtained this now declassified drawing from the National Archives in Washington DC. (Jim reports he paid $7.00 for the copy!).
The drawing labels the device under discussion as:
XMTG ANT
2-2 & 2-3
6-30 MC
DISCONE CAGE
I assume this means that this device is actually two transmitting antennas (2-2 and 2-3), and they transmit in the 6 to 30 megacycle range. Further it would seem that the structure is in fact a "cage" supporting the two antennae.
Maybe a Radioman will step forward and elaborate on this.
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Art Tilley MT2
1962-1963 |
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