Clear-Com TEMPEST 2400 Spécifications télécharger pdf (Page 53)

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Tempest 2400 Wireless Intercom System

Factors that affect the maximum number of systems that may be collocated in any given location include:

• The existence and extent of harmful interference caused by in-band external radiators.

• Number of base stations.

• Number of beltstations per base station.

• Whether or not Accu-Sync is being employed.

• Physical location of base station antennas (either on base stations or on Transceivers).

• Physical location of the beltstations.

• Specific hopping patterns selected.

• Environment (wide open, reflective, through walls…).

Favorable system conditions include:

• Locations with little or no interference from other 2.4GHz devices will provide the best opportunity

for a large number of collocated systems.

• Proper use of Accu-Sync resolves potential desensing issues.

• Antennas of any particular system should be separated from every other system’s antennas by at

least 10 feet (3 meters) for best collocated system performance.

• beltstations operating at similar distances from their respective base station antennas provide the

best opportunity for satisfactory performance of a large number of collocated systems.

• The hopping pattern (Network Number) should be selected to ensure that there is a numerical

separation of four for all collocated systems.

• Environment can play a big role in RF system performance. Every location is different and has its

own unique set of challenges. Generally speaking, locations with very long paths to very reflective

surfaces tend to be the most difficult for digital wireless communication systems due to the

prevalence of inter-symbol interference.

Maximum Number of Collocated Systems

With all factors listed above being favorable, a maximum of 10 Tempest systems, each with five

beltstations, may be collocated with minimal or no user perceived impact on system range or

performance.

The addition of one or more adverse conditions will limit the number, effectiveness and range of

collocated systems in any given environment proportionally to the extent of the adverse condition(s).

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Clear-Com TEMPEST 2400 Spécifications Page 53