OTE VS 2001 - Appendix A: Accessories; Subjects Treated; Microphone; Fig. A.1: Microphone MK1 B (978-0314;01)

VS 2001
Technical Handbook
Accessories
P/N: 779-0373/02
Revision 02
Marconi Proprietary information
Page 135
APPENDIX A: ACCESSORIES
A.1 SUBJECTS TREATED
The characteristics of the vehicular equipment’s accessories are given:
microphone, loudspeaker, antenna, handset.
A.2 MICROPHONE
The microphone for the VS 2001 with PTT is shown in Fig. A.1; its characteristics
are reported in Tab. A.1.
Fig. A.1: Microphone MK1B (978-0314/01)
Tab. A.1: Microphone characteristics
Characteristic Type/Value
Frequency range 200 to 5000 Hz
Sensitivity
-71 dB ± 3 dB at 1 kHz
Impedance
400 Ω ± 20% at 1 kHz
Operating temperature range -30 to +70 °C