Switzerland and the Principality of Liechtenstein
Radio Interface Regulation

784.101.21 / RIR10041)
Radiodetermination applications

6 - 8.5 GHz
Max. -33 dBm/MHz mean e.i.r.p.
Edition 2.1 / 01.01.2020

Nr Parameter2)DescriptionComments
1Radiocommunication service--
2ApplicationLPRLevel probing radar (LPR) is a radio transmitting and receiving device, that
uses Ultra Wide Band (UWB) emission technology, deployed in an industrial environment by professionally
trained personnel and used in process controls to measure the (vertical variation of) level of various substances,
mostly liquids or granulates.
3Frequency band6 - 8.5 GHz-
5Modulation / Occupied bandwidth--
6Direction / Separation--
7Transmit power / Power densityMax. -33 dBm/MHz mean e.i.r.p. / +7 dBm/50 MHz peak e.i.r.p. in main beam;
Max. -55 dBm/MHz mean e.i.r.p. on half-sphere.
According to ECC/DEC(11)02 - Annex 1.
8Channel access and occupation rules--
9Authorisation regimeSwitzerland: License exempt.
Liechtenstein: General authorisation.
Operation on NIB / NPB (Non interference basis / non protection basis).
According to ECC/DEC(11)02 - Annex 2:
LPR devices to be operated under license exempt/general authorization conditions shall include technical provisions to limit the radiation in all directions regardless of the installation heights and reflecting material below the LPR;
any installation and use of LPR around from 0 km up to 4 km radius to the radio astronomy station (RAS) in Bleien is prohibited;
for any installation and use of LPR from 4 to 40 km around RAS Bleien, the antenna height shall not exceed 15 m.
RAS Bleien: LV95 coordinates (CH1903+): 2650858/1243443.
10Additional essential requirements--
11Frequency planning assumptionsEN 302 729-
12Planned changes--
13ReferenceEN 302 729 / ECC/DEC(11)02 / ERC/REC 70-03, Annex 6.Effective use of spectrum / ECC Decisions / ECC Recommendations.
14Notification numberG/TBT/N/CHE/153
15RemarksEN 301 489-3-

Normative part: 1 to 11
Informative part: Nr 12 to 15

1) RIR for similar and/or other applications are available under: https://www.bakom.admin.ch/bakom/en/home/frequenzen-antennen/nationaler-frequenzzuweisungsplan/schnittstellen-anforderungen.html
2) For explanations and legal status, please refer to basis document 784.101.21 / RIR0000