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The present document applies to cooperative communications using radio transmitters and receivers for Intelligent 
Transport Systems (ITS). ITS communications may comprise vehicle-to-vehicle, vehicle-to-infrastructure and 
infrastructure-to-vehicle.  
The equipment is comprised of a transmitter and associated encoder and modulator and/or a receiver and associated 
demodulator and decoder. The types of equipment covered by the present document are as follows: 
• OnBoard Equipment (OBE) fitted with an integral or dedicated antenna(s), intended for use in vehicles, e.g. a 
road or a rail vehicle. 
• RoadSide Equipment (RSE) fitted with an antenna socket, integral or dedicated antenna(s), normally used as a 
fixed station, e.g. a road or rail infrastructure. 
These networks operate over a short range with very wideband communications using a variety of directional medium 
and high gain antennas to enable a high degree of spectrum reuse, and may use a flexible bandwidth scheme under 
which they normally operate in a wideband mode, and periodically reduce their bandwidth (e.g. for antenna training and 
other activities). 
The technical characteristics of these applications are described in ETSI TR 102 400 [i.3], where ITS applications in the 
63,72 GHz to 65,88 GHz band is described. The present document is also in line with the results of the spectrum 
compatibility study in the CEPT ECC Report 113 [i.4]. 
These radio equipment types are capable of operating in all or any part of the frequency bands given in table 1. 
Table 1: Equipment operating frequency bands 
Transmit 
Equipment operating frequency bands 
Receive 
63,72 GHz to 65,88 GHz 
63,72 GHz to 65,88 GHz 
NOTE: The relationship between the present document and essential requirements of article 3.2 of 
Directive 2014/53/EU [i.2] is given in Annex A. 

The present document provides requirements that are specific enough to define the desired security outcomes, but 
flexible enough that there can be innovation and different ways for how they can be achieved. Whilst it is initially 
targeted towards the Telecoms Sector, the principles are designed to be industry agnostic. 
The present document covers the device only. Additional documents will cover other aspects of PAWs that can work in 
conjunction with each other to meet the needs of the overall system architecture and achieve the relevant security aims. 

The present document provides requirements that are specific enough to define the desired security outcomes, but 
flexible enough that there can be innovation and different ways for how they can be achieved. Whilst it is initially 
targeted towards the Telecoms Sector, the principles are designed to be industry agnostic.  
The present document covers the connectivity and follows on from ETSI EN 303 994-1 [1]. Additional documents will 
cover other aspects of PAW that can work in conjunction with each other to meet the needs of the overall system 
architecture and achieve the relevant security aims. 

The present document specifies technical characteristics and methods of measurements for Very Small Aperture 
Terminals (VSATs) intended to operate through a geostationary satellite at least 3° away from any other geostationary 
satellite operating in the same frequency band and covering the same area and which have the following characteristics: 
• The VSAT operates in the following bands, or parts thereof, allocated to the Fixed Satellite Service (FSS): - - - - 
10,70 GHz to 11,70 GHz (space-to-Earth); 
12,50 GHz to 12,75 GHz (space-to-Earth); 
14,00 GHz to 14,25 GHz (Earth-to-space); 
14,25 GHz to 14,50 GHz (Earth-to-space); 
• The VSAT uses linear polarization. 
• The VSAT antenna diameter does not exceed 3,8 m, or equivalent effective area. 
• The VSAT is either: - - - 
a transmit only VSAT: designed for transmission only of radio-communications signals in any of the 
frequency bands (earth-to-space) specified above; or 
a transmit and receive VSAT: designed for transmission and reception of radio-communications signals 
in any of the frequency bands specified above; or 
a receive only VSAT: designed for reception only of radio-communications signals in any of the 
frequency bands (space-earth) specified above. 
The present document applies to the VSAT with its ancillary equipment and its various terrestrial ports, and when 
operated within the boundary limits of the operational environmental profile defined for the intended use of the VSAT 
of the MES. 
NOTE: The relationship between the present document and essential requirements of article 3.2 of Directive 
2014/53/EU is given in Annex A.