User Manual

11
-91 dBm
MMI may indicate 3 antenna bars
12
-89 dBm
MMI may indicate 3 antenna bars
13
-87 dBm
MMI may indicate 3 antenna bars
14
-85 dBm
MMI may indicate 3 antenna bars
15
-83 dBm
MMI may indicate 4 antenna bars
16
-81 dBm
MMI may indicate 4 antenna bars
17
-79 dBm
MMI may indicate 4 antenna bars
18
-77 dBm
MMI may indicate 4 antenna bars
19
-75 dBm
MMI may indicate 4 antenna bars
20
-73 dBm
MMI may indicate 4 antenna bars
21
-71 dBm
MMI may indicate 4 antenna bars
22
-69 dBm
MMI may indicate 4 antenna bars
23
-67 dBm
MMI may indicate 4 antenna bars
24
-65 dBm
MMI may indicate 4 antenna bars
25
-63 dBm
MMI may indicate 4 antenna bars
26
-61 dBm
MMI may indicate 4 antenna bars
27
-59 dBm
MMI may indicate 4 antenna bars
28
-57 dBm
MMI may indicate 4 antenna bars
29
-55 dBm
MMI may indicate 4 antenna bars
30
-53 dBm
MMI may indicate 4 antenna bars
31
-51 dBm or more
MMI may indicate 4 antenna bars
99
not detected
MMI may indicate flashing antenna bars
When <rssi> is less than 6, with only 1 MMI antenna bar, the quality of a call will be poor
and the call may even drop.
<ber> is an integer from 0 to 7 and 99 that reports the received signal quality measured on the
radio traffic channel.
The quality is measured on the traffic channel. It is available only during a conversation. In
Idle the reported value must not be considered.
In conversation the quality decreases with the increase of the <ber> number.
The <ber> value refers strictly to the GSM radio channel and is a very technical parameter. It
can be used to monitor the voice call quality since the voice quality is inversely proportional
to the <ber> number. HE910V2 family doesn’t support ber in WCDMA network so the
return value fixed as 99.
Once the mobile has registered on one network, it may be useful to know the received signal
strength and the network on which the mobile is registered. These information can be
gathered with the commands +CREG, +COPS and +CSQ, which are part of the standard
3gpp GSM 07.07/27.007 commands as seen before, unfortunately these commands are not so
fast in the response due to network response time, especially the +COPS command. If You