KIRK Wireless Server 500 with CLIP – User Guide - 14096500-HD, Ed.8
19
7.4.3 Example 3
Remote sites up to 1 Km (in line of sight) from the main site can be incorporated into the system
by means of a wireless KIRK Repeater equipped with an optional external antenna amplifying
the received signal from the KIRK Wireless Server 500 or the KIRK Repeater it is logged on to.
Please note!
Only the 2 channel repeater has connection for an external antenna.
7.5 Increase of Traffic Capacity
Using KIRK Repeaters for creating radio coverage will result in some limitations as the KIRK
Repeater, depending on model, is only able to transfer either 2 or 4 channels to a particular area.
Note on repeater overlap
If e.g. 4 channels are needed in an particular area two 2 channels Repeaters could be used
connected to the KIRK Wireless Server 500. This situation can create problems if the repeaters are
mounted close to each other.
The following situation will occur:
3 handsets are active (simultaneous) on two 2 channel repeaters. Handset no. 4 enters into the
same area trying to establish a handover to the KIRK Repeater configuration or handset no. 4
goes off-hook in the repeater area.
Result
Handover to KIRK Repeater is not possible – the connection breaks down or if the handover
takes place one of the 3 other handset will loose the connection.
The same situation will occur if handset no. 4 goes off-hook inside the repeater area. Off-hook is
not possible or if a off-hook is executed one of the 3 handset will loose the connection.
Reason
The reason for above mentioned result is that using 2 repeaters mounted next to each other will
create a Hot-Spot – too many channels in the air at the same time.
This is due to communication between handset and repeater which will activate channels in the
air between repeater and base station as well.
The way to overcome the phenomenon is to keep a distance between the repeaters similar to 25
metres in a free sight consideration.
KIRK Wireless Server 500
Repeater
Repeater
Repeater
Repeater
Repeater with ext. antenna
Up to
1 Km line
in sight
