Baer UniMod GSM-4, Руководство пользователя

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UniMod GSM-4
20
8.2 Signal Quality
When the modem operates in CSD mode (!) the INF-LEDs
’ show the cur-
rent field strength of the GSM signal. When the display is updated (every
three seconds) the first INF-LED flickers shortly. The second and third INF-
LED display the signal quality. Encoding see table below. (

: LED on /

:
LED off):
INF-LED Signal level Description


-99dBm to -113dBm Bad signal quality, transmission may be disturbed.


-83dBm to -97dBm Low signal quality;
  
-67dBm to -81dBm Medium signal quality;

-51dBm to -65dBm Good signal quality;






or








Undefined
(flashing)
No signal quality information available;
Check antenna










Undefined/GPRS
(flashing)
Modem logged in GPRS-Network: second and third
INF-LED flash alternately. In GPRS mode field
strength can not be displayed.






  
 













from version 81 up
-99dBm to -113dBm
-83dBm to -97dBm
-67dBm to -81dBm
-51dBm to -65dBm After every reset: check for signal quality (once
only):
Bad signal quality: flashing every 4 seconds
Low signal quality: flashing 1Hz
Medium signal quality: flashing 2Hz
Good signal quality: flashing 3Hz
►
During the connection and 60 seconds after it is the signalling dis-
abled!