SIST EN 300 113-2:2002

SIST EN 300 113-2:2002 is the Slovenian adoption of ETSI EN 300 113-2 V1.1.1 for land mobile radio equipment with an antenna connector. It is a harmonised European standard for equipment intended for the transmission of data and speech, and it addresses the essential requirements under article 3.2 of the R&TTE Directive. Engineers, test laboratories, quality managers, and buyers use it to check whether a radio design uses the assigned spectrum in a way that avoids harmful interference.

What does SIST EN 300 113-2:2002 specify?

SIST EN 300 113-2:2002 specifies the spectrum-related essential requirements for land mobile radio equipment covered by its scope. It ties each requirement to a measurement method and to the corresponding limit or table in ETSI EN 300 113-1.

The document is organized into scope, references, definitions/symbols/abbreviations, technical specifications, and compliance testing. Annex A is an informative bibliography.

The scope covers constant envelope angle modulation systems used in the land mobile service, operating between 30 MHz and 1 GHz, with channel separations of 12.5 kHz, 20 kHz, and 25 kHz. It applies to digital and combined analogue/digital equipment intended for data and/or speech, including base stations, mobile stations, and certain hand portable stations with antenna connections or access through a 50 Ω RF connector.

What are the key requirements of SIST EN 300 113-2:2002?

SIST EN 300 113-2:2002 sets out the transmitter, receiver, and testing conditions that a design must satisfy to show efficient use of spectrum. In practice, the standard does not give all technical detail itself - it points to ETSI EN 300 113-1 for the definitions, limits, and measurement methods.

Transmitter performance

Clause 4.2 covers the main transmitter requirements: frequency error, conducted carrier power, effective radiated power, adjacent channel power, spurious emissions, intermodulation attenuation, transmitter attack time, transmitter release time, and transient frequency behaviour of the transmitter.

For each of these items, the standard uses the corresponding definition, limit, and measurement procedure from ETSI EN 300 113-1. That means a test report has to show not only the measured value, but also that the correct method was used for the specific parameter under test.

In practice, these requirements control how accurately the transmitter stays on frequency, how much useful power it delivers, and how much unwanted energy it places into neighbouring channels or outside the intended band. That is what prevents one unit from disturbing other users of the radio spectrum.

Receiver performance

Clause 4.3 covers sensitivity, co-channel rejection, adjacent channel selectivity, spurious response rejection, intermodulation response rejection, blocking or desensitization, spurious radiations, and duplex receiver performance items such as desensitization and sensitivity, and spurious response rejection.

The receiver requirements are again linked to definitions, limits, and test methods in ETSI EN 300 113-1. For a buyer or integrator, this is the part that shows whether the receiver can still work when a wanted signal is weak or when other signals are present on the same or nearby channels.

In practice, these tests matter when equipment is used in crowded radio environments. They show how well the receiver separates wanted communication from interference, and how much unwanted signal energy it can tolerate before performance drops.

Environmental and test conditions

Clause 4.1 says the equipment has to meet the technical requirements within the environmental profile defined by its environmental class. Clause 5.1 then links compliance testing to normal and, where stated, extreme test conditions.

Clause 5.1 also requires the test power source to meet the conditions in ETSI EN 300 113-1, and it links sample selection to the sample definitions in that part. For practical use, this means compliance testing is not just a bench check under one easy condition - it has to reflect the operating environment defined for the equipment.

How results are judged

Clause 5.2 explains how measured results are interpreted. The measured value related to the applicable limit is used to decide compliance, and the measurement uncertainty for each parameter has to be included in the test report.

The same clause links uncertainty calculations to ETSI ETR 028 and gives the required coverage factors. In practice, this matters because a conformity decision has to be supported by both the measured value and the declared uncertainty, not by the reading alone.

Measurement uncertainty limits

Clause 5.2 includes a table of maximum absolute measurement uncertainties for radio frequency, conducted and radiated power, adjacent channel power, sensitivity, two-signal and three-signal measurements, radiated emissions, and transmitter transient parameters.

This table is important for test laboratories because it tells them what uncertainty levels are acceptable for the results they report. It also helps manufacturers compare test data from different labs on a consistent basis.

What terms does SIST EN 300 113-2:2002 define?

• Environmental profile - The operating environment for the equipment, determined by its environmental class, within which it has to meet the technical requirements.
• Base station - Equipment fitted with an antenna socket and intended for use in a fixed location.
• Mobile station - Equipment fitted with an antenna socket and normally used in a vehicle or as a transportable unit.
• Hand portable station - Portable equipment with an antenna socket, or integral antenna equipment with access to the transmitter output and receiver input through a 50 Ω RF connector.
• Sensitivity (data or messages) - The receiver performance item that describes how well the equipment receives data or messages, whether tested by conducted or field-strength methods.
• Spurious emissions - Unwanted transmitter emissions that are not part of the intended signal and are limited to protect other spectrum users.
• Blocking or desensitization - A receiver impairment caused by unwanted signals that reduce its ability to receive the wanted signal.

Who uses SIST EN 300 113-2:2002?

SIST EN 300 113-2:2002 is used by manufacturers of land mobile radio equipment, especially equipment intended for data and speech with an antenna connector. They use it during design, verification, and product release to check transmitter and receiver behaviour against the harmonised requirements.

Test laboratories use it to select the right measurement methods, environmental conditions, and uncertainty reporting for compliance testing. Quality managers and conformity assessors use it to review test reports and confirm that the documented results match the required limits and methods.

It is also relevant to buyers and procurement teams who need to specify conforming radio equipment, and to regulatory or certification bodies working with the R&TTE framework.

Which standards are used with SIST EN 300 113-2:2002?

• ETSI EN 300 113-1 - Supplies the technical characteristics, definitions, limit tables, and measurement methods that Part 2 references throughout the transmitter and receiver requirements.
• ETSI ETR 028 - Provides the basis for calculating measurement uncertainty for the test results reported under this document.
• Directive 1999/5/EC - The R&TTE Directive that the standard supports through its article 3.2 harmonised requirements.
• ETSI EN 300 113-2 Part 1 - The companion part named in the foreword; it covers the technical characteristics and methods of measurement for the same equipment family.

What does the SIST EN 300 113-2:2002 document contain?

SIST EN 300 113-2:2002 contains clause-by-clause transmitter and receiver requirements, each tied to a definition, a limit, and a measurement method taken from ETSI EN 300 113-1. It also contains the compliance-testing clauses that set the test conditions, sample selection, and interpretation of results.

Clause 5 includes the table of maximum measurement uncertainties and the essential radio test suites used to assess performance. Annex A provides a bibliography for additional background references.

The foreword explains the modular structure of the R&TTE standardization approach and places this part within the multi-part EN 300 113 family.