6
The maximum number of transmitters
The maximum number of radio transmitters in a coverage area is limited by radio standards.
The use of repeaters reduces the maximum number of transmitters because repeaters use
the same frequency channel as transmitters. The following example table shows the allowed
maximum number of FTR262 transmitters in a coverage area. Corresponding table for all wireless
transmiiters is found from the user manual of the device.
For example, if you have transmission interval of 20 seconds and one repeater, the maximum
number of transmitters is 43*.
Both repeaters can be placed in the coverage area of one receiver like in the example picture
below.
Receiver
Receiver and
Receiver and
1 repeater
2 repeaters
Maximum number of transmitters
5
22
11
7
10
43
22
14
20
87
43*
29
30
130
65
43
40
174
87
58
50
217
109
72
60
261
130
87
70
304
152
101
80
348
174
116
90
391
196
130
120
522
261
174
240
1043
522
348
Transmission
Interval (s)
FTR960
FTR960
RS-485 / RS-232 / USB
Warehouse
50..200 m
FTR970
Coverage
area
