EVS-EN 302 729 V2.1.1:2017

The present document applies to the following equipment types:
Level Probing Radar (LPR) applications are based on pulse RF, FMCW, or similar wideband techniques. LPR radio
equipment types are capable of operating in all or part of the frequency bands as specified in table 1.
Table 1: Level Probing Radar (LPR) permitted frequency bands [i.13]
LPR assigned frequency bands (GHz)
Transmit and Receive 6 to 8,5
Transmit and Receive 24,05 to 26,5
Transmit and Receive 57 to 64
Transmit and Receive 75 to 85
The present document contains requirements to demonstrate that LPR equipment both effectively uses and supports the
efficient use of radio spectrum in order to avoid harmful interference.
Table 1 shows a list of the frequency bands as assigned to Level Probing Radars in the European Commission
Decision 2013/752/EU [i.13] on harmonised deployment conditions for industrial Level Probing Radars (LPR) as
known at the date of publication of the present document.
Technical and regulatory requirements for LPR are provided in ECC Decision (11)02 [i.20], which are based on ECC
Report 139 [i.8].
LPRs are used in many industries concerned with process control to measure the amount of various substances (mostly
liquids or granulates). LPRs are used for a wide range of applications such as process control, custody transfer
measurement (government legal measurements), water and other liquid monitoring, spilling prevention and other
industrial applications. The main purposes of using LPRs are:
• to increase reliability by preventing accidents;
• to increase industrial efficiency, quality and process control;
• to improve environmental conditions in production processes.
LPRs always consist of a combined transmitter and receiver and are used with an integral or dedicated antenna. The
LPR equipment is for professional applications where installation and maintenance are performed by professionally
trained individuals only.
NOTE: LPR antennas are always specific directive antennas and no LPR omnidirectional antennas are used. This
is also important in order to limit the illuminated surface area as well as to control and limit the scattering
caused by the edges of the surface.
The scope is limited to LPRs operating as Short Range Devices (SRD).
The LPR applications in the present document are not intended for communications purposes.