Gigaset N720 DECT IP Multicell System

Taking measurementsIf you have measured the cells of several base stations, the results may look like this, forexample:MeasuringpointBase station A Base station B Base station C Base station D1 –60 dBm/100%2 –50 dBm/98%3 –65 dBm/100%4 –48 dBm/100%5 –55 dBm/98%6 –65 dBm/100% –50 dBm/100%7 –68 dBm/96% –59 dBm/100%8 –55 dBm/98% –46 dBm/98%9 –60 dBm/96%10 –52 dBm/98% –65 dBm/100%11 –63 dBm/100% –57 dBm/100%12 –48 dBm/98% –42 dBm/100%13 –46 dBm/98%14 –40 dBm/100%15 –60 dBm/98% –52 dBm/100%16 –43 dBm/100% –42 dBm/100%17 –56 dBm/100%18 –50 dBm/98%19 –53 dBm/100%20 –60 dBm/98%Measuring points where two base stations are received with at least –65 dBm are locatedin an overlap zone of the two base stations in which a handover is possible (highlightedgrey in the table).Measuring the synchronisation overlap of neighbouring basestationsFor the base stations to be able to synchronise, the signal strength between two neighbouringbase stations must not be less than –70 dBm. This value applies in good environmentalconditions, £ page 21.Proceed as follows for the measurements:¤ Leave the measuring base station at the last measuring site and proceed with thehandset to the planned position of a base station that is to synchronise with the firstbase station.In order to reliably assess the synchronisation, you must be located, with the handset,at the exact position of the planned base station (use a ladder to measure at the correctheight, if necessary).¤ Check whether the signal is within the limit of -70 dBm at 100% frame quality. If this isnot the case, you should change the location of the base station until this minimumrequirement is met.26VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299