Signal Strength Leds - NetComm NTC-220 User Manual

L E D
strength
Note – The term "blinking" means that the LED may pulse, with the intervals that the LED is on and off not being equal.
The term "flashing" means that the LED turns on and off at equal intervals.

Signal strength LEDs

The following table lists the signal strength range corresponding with the number of lit signal strength LEDs.
LTE signal mapping (Green)
WCDMA signal mapping (Amber)
GSM signal mapping (Red)
NTC-220 – User Guide
UG01028 v1.2 March 2019
N A M E C O L O U R
On
On
Signal
On
On
Table 3 – LED indicators
N U M B E R O F L I T L E D S
All LEDs unlit
1
2
3
4
5
Table 4 – Signal strength LED descriptions
N U M B E R O F L I T L E D S
All LEDs unlit
1
2
3
4
5
Table 5 – Signal strength LED descriptions
N U M B E R O F L I T L E D S
All LEDs unlit
1
2
3
S T A T E
Satellite detected, location acquired.
3G
2G GPRS
GSM only (no GPRS)
S I G N A L S T R E N G T H
No signal
−115 dBm to −119 dBm
−105 dBm to −114 dBm
−100 dBm to −104 dBm
−90 dBm to −99 dBm
> −90 dBm
S I G N A L S T R E N G T H
< –109 dBm
–109 dBm to –102dBm
–101 dBm to –92 dBm
–91 dBm to –86 dBm
–85 dBm to –78 dBm
≥ –77 dBm
S I G N A L S T R E N G T H
< −109 dBm
−102 dBm to −108 dBm
−93 dBm to −101 dBm
−87 dBm to −92 dBm
D E S C R I P T I O N
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