Cassini RPWS Instrument

Calibrations

FLT Unit

Department of Physics and Astronomy

The University of Iowa

Iowa City, IA 52242

2003

Prepared by:

______________________________________	__________________

G. B. Hospodarsky, Operation Engineer	Date

Approved by:

______________________________________	__________________

D. L. Kirchner, Project Engineer	Date

______________________________________	__________________

R. L. Huff, Engineering Group Manager	Date

______________________________________	__________________

W. S. Kurth, Operation Manager	Date

______________________________________	__________________

D. A. Gurnett, Principal Investigator	Date

Document Revision Page

TABLE OF CONTENTS

1.0 Introduction/Purpose/Scope

2.0 Applicable Documents

2.1 JPL Documents

2.2 UI Documents

2.3 CETP Documents

2.4 Meudon Documents

2.5 IRFU Documents

2.6 Software Documents

3.0 Overview of Cassini RPWS Instrumentation

4.0 Cassini RPWS Design Aspects

5.0 Discussion of RPWS Calibration Methods

6.0 Electric Antenna Subsystem

6.1 Effective Lengths

6.2 Base Capacitance

7.0 Magnetic Search Coil (MSC)

7.1 Amplitude Calibration

7.2 Phase Calibration

7.3 Noise Level

8.0 Langmuir Probe (LP)

9.0 Low Frequency Digital Receiver (LFDR)

9.1 End-to-End Calibration

9.2 Input Voltage Versus Output Data Numbers

9.3 Channel-to-Channel Gains

9.4 Filter Bandwidths - Equivalent Noise Bandwidths

10.0 Medium Frequency Receiver (MFR)

10.1 End-to-End Calibration

10.2 Input Voltage Versus Output Data Numbers

10.3 Channel-to-Channel Gains

10.4 Filter Bandwidths

11.0 High Frequency Receiver (HFR)

12.0 Wideband Receiver (WBR)

12.1 End-to-End Calibration

12.2 Frequency Response (Filter Response)

12.3 Gain Calibration

12.4 AGC Characteristics

13.0 Waveform Receiver (WFR)

13.1 End-to-End Calibration

13.2 Frequency Response (Filter Response)

13.3 Gain Calibration

13.4 AGC Characteristics

13.5 Phase Calibration

1.0 Purpose

The purpose of this document is to provide calibrations for the Cassini Radio and Plasma Wave Subsystem and other information important for the proper interpretation of data obtained from the instrument. These calibrations are used to convert the instrument output data to geophysical units for the purpose of data reduction and analysis.

2.0 Applicable Documents

2.1 JPL Documents

2.2 UI Documents

2.2.1	Instrument Hardware and Software Specification for the Cassini Radio and Plasma

Wave Investigation

2.2.2	User Guide and Software Operations Manual

2.3 CETP Documents

2.3.1	Cassini MSC-RPWS-PFU Transfer Functions, A. Meyer, Centre d'Etudes des

Environnements Terrestre et Planétaires Vélizy, CNET, Issy-les-Moulneaux, France,

March, 1996

2.4 Meudon Documents

2.5 IRFU Documents

2.5 Software Documents