Detailní informace o produktu

ČSN ETSI EN 300 433 V2.1.1 The present document covers the technical requirements for transmitters and receivers used in stations of angle modulated, Double Side Band (DSB) modulated and/or Single Side Band (SSB) modulated Citizens' Band (CB) radio equipment operating in all or part of the frequency band 26,960 MHz to 27,410 MHz with a channel spacing of 10 kHz, and intended for analogue speech and/or data transmission. Citizens' Band radio equipment operation is in accordance with ECC Decision (11)03 on the harmonised use of frequencies for Citizens' Band (CB) radio equipment [i.2]. Any equipment using national regulations on Citizens' Band (CB) permitting the use of channels outside of the carrier frequencies shown in table 1 within the frequency range from 26 MHz to 28 MHz can use the present document. The types of equipment covered by the present document are as follows: - Base station: equipment fitted with antenna connector. - Mobile station: equipment fitted with antenna connector. - Hand portable stations: a) either fitted with an antenna connector; or b) without an external antenna connector but fitted with a permanent internal or a temporary internal 50 ohm RF connector which allows access to the transmitter output and the receiver input. Hand portable station equipment without an external or internal Radio Frequency (RF) connector and without the possibility of having a temporary internal 50 ohm RF connector is not covered by the present document (integral antenna equipment). The present document contains requirements to demonstrate that "... Radio equipment shall be so constructed that it both effectively uses and supports the efficient use of radio spectrum in order to avoid harmful interference" and that "....radio equipment supports certain features ensuring access to emergency services". In addition to the present document, other ENs that specify technical requirements in respect of essential re-quirements under other parts of article 3 of the Radio Equipment Directive [i.4] may apply to equipment within the scope of the present document.