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

The last state of the Kashima 34m was recorded by Photographer HIRANOTAKASHI [https://hiranotakashi.com/]			Photograph by HIRANOTAKASHI: 26 Oct. 2020			Photograph by HIRANOTAKASHI: 4 Oct. 2020
1st Feb. 2020(2.7MB)	30 Jan. 2020 (2MB)	30 Jan. 2020(2MB)	30 Sep.2019 (4.9MB)	Main panels were removed 30 Sep. 2019 (4.9MB)	16 Jun. 2019 (4.5MB)	16 Jun. 2019 (5.2MB)	30 May 2019 (3.8MB)	26 May 2019 (5.0MB)
23 Nov. 2013 (4752ｘ3168 JPG:3.31MB)	The 34m in the snow, 28 Jan. 2013 (JPG:3.4MB)	The 34m in the snow, 28 Jan. 2013 (JPG:2.6MB)	New logo on the surface, 10 Aug. 2011 (2048×1536 JPG:1.5MB)	Refurbished 34m with white paint, 8 Mar. 2011 (1536×2048 JPG:1.26MB)	Refurbished 34m , 8 Mar. 2011(2048×1536 JPG:1.28MB)	Snow on the grass (mole hill) and 34m: 17 Jan. 2008(1536×2048 JPG:794KB)	Snow and 34m: 17 Jan. 2008 (2048×1536 JPG:798KB)
Observing `Hayabusa' with 34m and 11m: 12 Nov. 2005 (1500×900 JPG:147KB)	Grass flowers and 34m: 5 Jun. 2005(2592×1944 JPG:559KB)	24 Jan. 2003 (1600×1200 JPG:680KB)	34m and rainbow:12 Nov.2001(2369×1431 JPG:461KB)	First rising sun in 21st century and 34m: 1 Jan. 2001 (640×480 JPG:39KB)	Night phoptos: Oct. 2000	Mar. 2000 (1983×1419　JPG:1.0MB)	34m (2648×1814　JPG:1.4MB)

• Geodetic VLBI Movie (Part 2) : May 21, 2003 (320x240 AVI:4.4MB)
• Geodetic VLBI Movie (Part 1) : May 21, 2003 (320x240 AVI:4.4MB)

34m Antenna Annual Report

2001, 2002, 2003, 2004, 2005, 2006, 2007

Specifications

Dimensions and Features

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

Specifications of Receivers

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

Mt. Fuji in the evening

Jan. 9, 1999 (evening)

16:34 (left), 16:36 (right) on Nov.9, 2005

Mt. Fuji in the morning, if you are lucky

06:57 on Jan.24, 2003

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Last Update: November 15, 2005
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