Signal strength indicators on the Mobile status page
Digi TransPort User Guide 105
Signal strength indicators on the Mobile status page
On routers equipped with W-WAN modules, there are three LEDs on the front panel that indicates
the strength of the signal, as shown in the following table.
The signal strength is shown in negative dB, which means that the stronger the signal, the lower
the number. As a guide, -51dB is a very strong signal, normally only obtained very close to a cell
site. -115dB represents no signal. If your router reports -115dB, try reorienting the antenna or
consider adding an external antenna.
The following values are fairly specific to LTE. At 2G/3G technology, any strength lower than
-100dBm becomes unusable.
LEDs lit Signal Strength
None Under -113 dBm (effectively no signal)
1 -112 dBm to -87 dBm (weak signal)
2 -86 dBm to -71 dBm (medium strength signal)
3 -70 dBm to -51 dBm (strong signal)
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