| Kashima 34m Antenna |
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| 34m antenna, constructed in 1988, has the largest aperture in the Kashima Space Research Center. It is capable to receive multiple frequency bands spanning from 1.35GHz to 43GHz. This capability was made possible by a combination of various advanced technologies, such as the accurate surface of main reflector, the steerable sub-reflector system, and the multi receiver trolley system. This antenna is used for various purposes like geodesy (Very Long Baseline Interferometry), astronomy, and radio science. |
| Photo Gallery |
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Picture (2648x1814 JPG:1354KB)
Picture (1983x1419 JPG:1009KB) : March 2000
34m antenna in the night : Oct. 2000
The 1st Sunrise of the 21st Century (640x480 JPG:39KB) : Jan. 1, 2001
34m antenna with a rainbow (2369x1431 JPG:461KB) : Nov. 12, 2001
34m antenna (1600x1200 JPG:680KB) : Jan. 24, 2003
Geodetic VLBI Movie (Part 1) : May 21, 2003 (320x240 AVI:4.0MB)
Geodetic VLBI Movie (Part 2) : May 21, 2003 (320x240 AVI:4.4MB)
QTVR movie of the 34m antenna (QTVR 340KB)
GIF Animation of the 34m antenna (GIF animation 1510KB)
34m antena with flowers (2592x1944 JPG:559KB) : June 5, 2005
34m and 11m antennas observing "HAYABUSA" (1500x900 JPG:147KB) : Nov. 12, 2005
| 34m Antenna Annual Report |
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| Specifications |
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| Diameter | 34m |
| Type | Cassegrain |
| Mount | Az-El steerable |
| Surface Accuracy | 0.17mm RMS |
| Drive Range | [EL] +6 deg to +90 deg [AZ] -355 deg to +355 deg |
| Maximum Speed | [EL] 0.64 deg/sec [AZ] 0.8 deg/sec |
| NASA CDDIS Monument Number | 1857 |
| IERS DOMES Number | 21701S004 |
| Frequency Band | Receiver Noise Temperature | System Noise Temperature | Efficiency | Beam Width |
|---|---|---|---|---|
| 1.35-1.75GHz | 10K | 38K | 68% | 24' |
| 2.193-2.35GHz | 11K | 71K | 68% | 16' |
| 4.60-5.10GHz | 25K | 55K | 70% | 7.5' |
| 7.86-8.68GHz | 13K | 52K | 68% | 4.4' |
| 21.8-23.8GHz | 75K | 160K | 57% | 1.6' |
| 31.7-33.7GHz | 85K | 150K | -% | 1.2' |
| 42.3-44.9GHz | 180K | 350K | 20% | 51" |
| Mt. Fuji seen from 34m antenna |
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16:34 (left), 16:36 (right) on Nov.9, 2005

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Last Update: November 15, 2005
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