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ČSN ETSI EN 301 502 V11.1.1 The present document applies to the following radio equipment type: 1) GSM base stations. Table 1-1: GSM Base Station System frequency bands GSM band Direction of transmission GSM Base Station System relevant frequency bands P-GSM 900 Transmit 935 MHz to 960 MHz Receive 890 MHz to 915 MHz E-GSM 900 Transmit 925 MHz to 960 MHz Receive 880 MHz to 915 MHz R-GSM 900 Transmit 921 MHz to 960 MHz Receive 876 MHz to 915 MHz DCS 1 800 Transmit 1 805 MHz to 1 880 MHz Receive 1 710 MHz to 1 785 MHz GSM 450 Transmit 460,4 MHz to 467,6 MHz Receive 450,4 MHz to 457,6 MHz GSM 480 Transmit 488,8 MHz to 496 MHz Receive 478,8 MHz to 486 MHz The present document is intended to cover the provisions of Directive 1999/5/EC [i.2] (R&TTE Directive), Article 3.2, which states that "... radio equipment shall be so constructed that it effectively uses the spectrum allocated to terrestrial/space radio communications and orbital resources so as to avoid harmful interference". In regards to interference to systems operating in adjacent bands guidance for single carrier BTS and multicarrier BTS is provided in ECC Report 146 [i.4]. In addition to the present document, other ENs that specify technical requirements in respect of essential requirements under other parts of article 3 of the R&TTE Directive [i.2] may apply to equipment within the scope of the present document. NOTE: A list of such ENs is included on the web site http://www.newapproach.org.