INTERNATIONAL  TELECOMMUNICATION  UNION	

SUBSCRIPTION  CIRCULAR   No. 144
	Geneva,  7 March 1995

Order for the:

	VSAT Systems and Earth Stations
	Supplement No. 3 to ITU Handbook on Satellite Communications 
	(Fixed-Satellite Service) (Geneva, 1988)

	An order form for a Handbook on VSAT Systems and Earth Stations is attached hereto. This Handbook, was prepared by Handbook Group of Radiocommunication Study Group 4. A brief summary of the Handbook is given in Annex 1.

	To order this publication, please complete the order form and return it to the ITU Sales Service.

Annex : Order form

ANNEX 1
VSAT SYSTEMS AND EARTH STATIONS

	ITU-R is pleased to announce the publication of a new Handbook on "VSAT Systems and Earth stations". This volume has been prepared, in accordance with ITU-R Decision 64-1, by the "Handbook Group" of Radiocommunication Study Group 4 as a Supplement Nº 3 to the "Handbook on Satellite Communications (FSS)" (Geneva, 1988). Contrarily to Supplements Nº 1 and Nº 2, which are small fascicles based on existing data, this Supplement Nº 3 as a self-standing  and comprehensive document (about 240 pages).

	The term VSAT (Very Small Aperture Terminal) currently designates very small economical satellite earth stations which are directly connected to the users. These stations are operated in the framework of autonomous communication systems and networks (often private or closed users groups), with applications extending from data communications to, possibly, telephony, videoconferencing, etc.

	With about 140 000 terminals world-wide (end-1993), VSAT systems are now well established as a mature technique for implementing communications over wide areas, especially for business services. They should also find a large range of applications in developing countries.

	The Handbook encompasses all aspects of VSAT systems and earth stations, including:

	-	Basic techniques,
	-	Network Architectures, Protocols and Terrestrial Interfaces,
	-	Earth stations engineering,
	-	Current status, applications and standards (Global, Regional, National),
	-	Future developments.

	Prepared by an international group of experts and keeping the didactic form which made the success of the main Handbook, this volume should be of utility to the telecommunication community and, notably, to all possible users or designers of VSAT systems and networks, including communication managers and planners, operators, system, hardware and software engineers, etc.

_________________

Date of publication :	April 1995	
Size :	A4 (21 x 29.7 cm)	
Number of pages :	about 240	
Languages :	Separate Editions (French, English, Spanish)	
Price :	provided the customary number of orders is received, the price will be approximately as follows :
	Swiss francs

Catalogue Price	50.-
Administrations (ITU)	43.-	

Payment for publications

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	c)	by bank transfer to the Swiss Bank Corporation, Geneva, Account No. C8-765,565.0.
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		The ITU does not accept Letters of Credit.
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	–	Visa.

___________________

	ORDER FORM	Annex to Circular No. 144
VSAT Systems and Earth Stations
Supplement No. 3 to ITU Handbook on Satellite Communications (Fixed-Satellite Service)	

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