SSH EN 300 632 V1.2.1:2002

Transmission and Multiplexing (TM); Fixed radio link equipment for the transmission of analogue video signals operating in the frequency bands 24,25 GHz to 29,50 GHz and 31,0 GHz to 31,8 GHz

Scope

The present document covers the minimum technical requirements for terrestrial analogue radio relay systems operating
in bands in the frequency range 24,25 GHz to 29,5 GHz and 31,0 GHz to 31,8 GHz.
Such systems are intended to be used for Point-to-Point (P-P) connections and video distribution (Point-to-Multipoint
(P-MP)).
Typical applications include:
a) TV of contribution quality;
b) TV of distribution quality;
c) TV of surveillance quality;
d) Radar signals remoting.
Use of the 31 GHz band is restricted to analogue security video systems in the present document.
Safety aspects are outside the mandate of ETSI and they will not be considered in the present document.
The requirements and limits given in the present document are relevant to all environmental conditions for the chosen
climatic class.
The minimum performance parameters for digital radio relay equipment operating in the range 24,5 GHz to 29,5 GHz
are set out in EN 300 431 [12] while those for systems operating in the range 31,0 GHz to 31,3 GHz and 31,5 GHz to
31,8 GHz are given in EN 300 197 [15].
The 31,0 GHz to 31,3 GHz band is available in some countries and included in CEPT Report 25 [17].
All emissions are prohibited in the band 31,3 GHz to 31,5 GHz (see footnote S5.340 in ITU Radio Regulations [20]).
Therefore this band is not available for FS systems. The levels of unwanted emissions from FS systems falling into the
band 31,3 GHz to 31,5 GHz are, at the time of writing, being discussed under Agenda item 1.8.2 of WRC 03.
It should be noted that the band 31,5 GHz to 31,8 GHz, available for FS in some Countries under the provision of
footnote S5.546 of the ITU Radio Regulations [20], is also allocated to passive services, including the Earth Exploration
Satellite Service (EESS passive).