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ITU-R REPORT M.1161 PDF

ITU-R REPORT M.1161 PDF

Name:
ITU-R REPORT M.1161 PDF

Published Date:
01/01/1990

Status:
[ Active ]

Description:

Use of MF/HF DSC for automatic connection of calls in the maritime-mobile service MF and HF bands to the public switched network

Publisher:
International Telecommunications Union

Document status:
Active
Format:
Electronic (PDF)
Delivery time:
10 minutes
Delivery time (for Russian version):
200 business days
SKU:
Choose Document Language:
$10.5
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Introduction and background

The facility for inserting the public switched network number in a Digital Selective Calling (DSC) call (see Recommendation 493, Annex I § 8.2.3) has enabled an automatic (direct-dial) telephone system to be introduced in the VHF band, using the existing Appendix 18 working channels, based on the operational procedures which are described in draft Recommendation 689.

This report examines the MF/HF situation and proposes that such an automatic system (with some modifications compared to the VHF system) may indeed be introduced on MF/HF frequencies.


Edition : 90
File Size : 1 file
Number of Pages : 12
Published : 01/01/1990

History

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