The parameter specifications of AMR are described in Table 1 for H-polarization observation. AMR is flown on a Beechcraft-B200 aircraft owned by Nakanihon Air Service Co., Ltd. under contract to NASDA/RESTEC (Remote Sensing Technology Center of Japan).
Table 1. AMR Parameter Specifications
Line profiler with fixed horn antennas
Incidence angle (degree)0, 11, or 55 (fixed during flight)
Delta T (K)<0.2 to 0.4 (depending on frequency)
PolarizationVertical and horizontal for all channels
ReceiverDicke switching receiver
A/D12 bits
Integration time1.33 sec.
Instrument massapprox. 600 kg
Instrument powerapprox. 5 kW
Center frequencies (GHz)6.92510.6518.723.836.589.0
Bandwidth (MHz)35010020040010003000
Beamwidth El. (3dB in deg.)12.310.
Beamwidth Az. (3dB in deg.)

The Effective Field of view for each frequency band is shown in Table 2 for a case of 55 degrees incidence angle, three typical altitudes and flight speeds.

Table 2. Typical Size of Effective FOV
Center Frequency (GHz)6.92510.6518.723.836.589.0
Altitude=8,000 m
Typical flight speed=115 m/sec
Effective FOV (km) El.5.524.483.542.853.243.24
Effective FOV (km) Az.2.612.11.581.321.511.51
Altitude=3,000 m
Typical flight speed=90 m/sec
Effective FOV (km) El.2.131.741.391.131.281.28
Effective FOV (km) Az.0.980.790.590.490.570.57
Altitude=500 m
Typical flight speed=80 m/sec
Effective FOV (km) El.0.440.380.320.270.30.3
Effective FOV (km) Az.

AMR observation concept
AMR Observation Concept

Several photographs are shown below.
Photo of AMR high frequency component AMR High frequency compoment
Beechcraft B200 Beechcraft B200
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Earth Observation Research Center
National Space Development Agency of Japan