RISCO Group LightSYS 2 - Manual (Page 194)

Installer Programming
Page 194
Quick Keys Parameter Default Range

RX Calibration
Note
Allocation is step two of the three step Wireless Device Defining process.
See Step 1: Allocating a wireless expander  p. 185
Step 3: Allocation , below
The calibration measurement shows the amount of background ‘noise’
that the receiver can ‘hear’ on the same frequency as the RISCO wireless
devices. This ‘noise’ could be neighboring devices of another system or
other devices operating on the same frequency nearby. These are
‘unwanted’ signals that the LightSYS2 wireless expander must be told ‘not
to listen to’ in order to eliminate false jamming alarms.
The threshold noise level can be established automatically or manually
 To measure and set wireless device RF noise thresholds
1. Through the menu selection, the following display appears:
Choose Receiver:
1)ID:1 TYP:WM
2. Select the wireless zone expander for which you want to
establish the threshold level and press . The following
display appears, showing the current threshold level:
THOLD=XX WM1
RE-CALIBRATE? N
3. To perform a new automatic calibration, use the key to
select Y Yes. After the calibration process is finished, the new
receiving threshold is displayed, as follows:
THOLD=XX WM:1
NEW THOLD=YY
4. To confirm the new threshold, press , ‐OR‐ to change the
threshold manually, enter the required level and then press
Note:
In order to ensure that a momentary high noise level (due to
environmental reasons) will not cause a jamming alarm, you can
set the threshold level to be higher than the calibrated level.