ESCO Technologies ETS Lindgren 3301B, User Manual

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9.0 Theory of Operation................................................................................................................. 29
9.1 The Rod ............................................................................................................................... 29
9.2 The Pre-Amplifier ................................................................................................................. 30
10.0 The Antenna Factor............................................................................................................... 33
11.0 Antenna Impulse Response .................................................................................................. 35
11.1 Impulse Characteristics...................................................................................................... 35
11.2 Pulse Desensitization......................................................................................................... 36
11.3 Pulse Charging .................................................................................................................. 37
12.0 Calibration Procedure............................................................................................................ 39
Appendix A: Warranty Policy for Standard EMCO Brand Products .............................................. 41
Scope and Duration of Warranties............................................................................................. 41
Warranty Exclusions .................................................................................................................. 41
Buyer’s Remedies ...................................................................................................................... 42
Appendix B: European Community Declaration of Conformity ..................................................... 45
Appendix C: Data and Illustrations ................................................................................................ 47
Periodic Rectangular Pulse Train .............................................................................................. 47
Spectrum of Rectangular Pulse ................................................................................................. 47
Altering Pulse Width / Pulse Repetition Rate............................................................................. 48
Active Electric Field Antenna Calibration Fixture....................................................................... 49
Active Rod Antenna Calibration Setup ...................................................................................... 50
Typical Curves—Minimum Discernible Signal at Various Bandwidths ...................................... 51
Typical Attenuation Effect for Switches 1 and 2 ........................................................................ 52
Typical Roll Off Curves for Switches 3 and 4 ............................................................................ 53
Typical Roll Off Curves—41” Rod Antenna, 0 dB Attenuation .................................................. 54
Typical Roll Off Curves—41” Rod Antenna, 10 dB Attenuation ................................................ 55
Typical Roll Off Curves—41” Rod Antenna, 30 dB Attenuation ................................................ 56