Signal Strength

Value of +CSQ RSSI dBm Condition
2 -109 Marginal
3 -107 Marginal
4 -105 Marginal
5 -103 Marginal
6 -101 Marginal
7 -99 Marginal
8 -97 Marginal
9 -95 Marginal
10 -93 OK
11 -91 OK
12 -89 OK
13 -87 OK
14 -85 OK
15 -83 Good
16 -81 Good
17 -79 Good
18 -77 Good
19 -75 Good
20 -73 Excellent
21 -71 Excellent
22 -69 Excellent
23 -67 Excellent
24 -65 Excellent
25 -63 Excellent
26 -61 Excellent
27 -59 Excellent
28 -57 Excellent
29 -55 Excellent
30 -53 Excellent

Source: http://m2msupport.net/m2msupport/atcsq-signal-quality/

How to Configure Sunix USB-to-Serial Converter in VirtualBox

Applies to these MobiGATE models:

  • SG-4
  • SG-8
  • SG-4-U
  • SG-8-U

 

  1. Goto "VirtualBox -> Settings -> USB -> USB Device Filters". Add new filter.
    Configure Sunix USB-to-Serial Converter-01
  2. Run the virtual machine.
  3. Install the USB driver for Sunix USB-to-Serial Converter (pic).
    Configure Sunix USB-to-Serial Converter-02
  4. Connect Sunix USB-to-Serial Converter to PC. It will create 4 devices “Prolific Technology …” in VirtualBox.
    Configure Sunix USB-to-Serial Converter-03
  5. The “Device Manager” in VirtualBox will also show 4 COM ports “Prolific USB-to-Serial Comm Port” have been added.
    Configure Sunix USB-to-Serial Converter-04

source: https://forums.virtualbox.org/viewtopic.php?f=8&t=42275

Note: If you skip step 1 and do not add a new “USB Device Filters”, instead you configure from "VirtualBox -> Devices -> USB" (Step 4), then there will be an error. “Failed to attach the USB device”.
Configure Sunix USB-to-Serial Converter-05