SSH EN 301 357-1 V1.3.1:2006

Çështjet e pajtueshmërisë Elektromagnetike dhe të spektrit të Radios (ERM); Pajisje audio pa kordon në diapazonin 25 MHz në 2 000 MHz; Pjesa 1: Karakteristikat teknike dhe metodat e provës

Electromagnetic compatibility and Radio spectrum Matters (ERM); Cordless audio devices in the range 25 MHz to 2 000 MHz; Part 1: Technical characteristics and test methods

Scope

The present document covers the minimum characteristics considered necessary in order to make the best use of the
available frequencies. It does not necessarily include all the characteristics that may be required by a user, nor does it
necessarily represent the optimum performance achievable.
Cordless audio devices covered within the present document are considered by definition short-range devices, the
power limits for frequency bands will be found in the current version of CEPT/ERC/REC 70-03, annex 13 (or national
regulations).
Stereo equipment can be designed for required channel bandwidths of 200 kHz or less, however consumer wideband
(multi channel) audio equipment and stereo equipment using e.g. Zenith-GE pilot tone systems or digital modulation
may need wider bandwidths as defined in the present document.
The present document applies to cordless audio consumer radio microphones, in ear monitoring equipment using either
300 kHz bandwidth analogue modulation or:
• 300 kHz, 600 kHz, 1 200 kHz digital FDMA modulation; and
• Band II LPD (low power devices) using 200 kHz bandwidth and analogue modulation.
The frequency bands for this equipment may differ from country to country as specified in their national regulations.
All equipment is intended to be used with integral antennas.
Consumer audio equipment intended for audio and voice operating below 50 MHz and using narrow band modulation
are considered and tested according to EN 300 220 [6].
Electromagnetic Compatibility (EMC) requirements are covered by EN 301 489-9 [3].
The types of equipment covered by the present document are as follows:
- cordless headphones;
- cordless loudspeakers;
- consumer radio microphones;
- in-ear monitoring;
- in-vehicle cordless;
- personal cordless;
- broadband multi channel audio systems;
- Band II LPD.