Honeywell International Inc. HD-128 Manuale Utente

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CONFIDENTIALITY STATEMENT 
This document contains information that is private and Confidential, and is supplied on the express condition that it is not to be 
used for any purpose other than the purpose for which it was issued, nor is it to be copied or communicated in whole or in part, to 
any third party other than the recipient organization, without the prior written permission of EMS Technologies Canada, Ltd. 
Copyright © EMS Technologies Canada, Ltd.
 
User’s Guide EMS-MN-1110-10048 
19 
Operating considerations 
The following section provides information on operating 
considerations that apply to HSD Transceivers. 
Satellite transitions 
The satellite beam used by the HSD transceiver changes as 
the aircraft moves from region to region at approximately 
the following coordinates: 
•  AORW (54°W) to AORE (15.5°W) at 34.75°W 
•  AORE (15.5°W) to IOR (64.5°E) at 24.5°E 
•  IOR (64.5°E) to POR (178°E) at 121.5°E 
•  POR (178°E) to AORW (54°W) at 118°W 
Calls in progress (longer than ten minutes in duration) 
during beam crossover and satellite hand-off are terminated. 
Your connection needs to be re-established once the beam 
crossover and satellite hand-off are complete. 
Satellite communications  
Satellite communications have unique operating 
considerations: 
•  Communication, audio background-noise varies 
depending on the quality of the aircraft's sound 
insulation and handset quality 
•  Satellite communications experience a slight 
delay during two-way communication