Project

General

Profile

Rssibin » History » Version 6

Anonymous, 02/19/2016 10:49 PM

1 1 laforge
= rssi.bin =
2
3
This OsmocomBB firmware build is able to measure received signal strength over all channels that the hardware supports.
4
5
It has two modes:  ARFCN view and Spectrum view
6
7
Depending on your hardware capabilities, this firmware is able to take measurements in all four bands in both uplink and downlink.
8
9
Uplink measurements always require the [wiki:Hardware/FilterReplacement]
10
11
== ARFCN view ==
12
13 5 laforge
[[Image(osmocombb-rssi-arfcn.jpg)]] [[Image(osmocombb-rssi-arfcn-color.jpg)]]
14 2 laforge
15 1 laforge
In the ARFCN view you get
16
 * an indication of the ARFCN currently selected
17
 * an indication of the band (DCS/PCS) for ARFCNs that exist in both bands
18
 * the Rx Level in dBm
19
 * a bar graph vor visualizing the RSSI
20
 * an optional audible indication (beep tones) corellated with the RSSI
21
22
You can use it the following way:
23
 * Enter the digits of an ARFCN on the numeric keypad followed by the Enter soft-key
24 3 jolly
 * Use the Left/Right buttons to decrease/ increase the currently shown ARFCN
25
 * Hold the Left/Right buttons to faster decrease / increase ARFCN 
26 1 laforge
 * Use the Up/Down buttons to increase/decrease the beep tone volume
27 3 jolly
 * Use the * (asterisk) button to enter or leave spectrum view
28 1 laforge
 * Use the UL/DL soft-button to change uplink / downlink measurement
29 3 jolly
 * Use Menu (middle) button to toggle maxium hold
30 4 jolly
 * Press green button to sync to selected cell
31 1 laforge
32
== Spectrum view ==
33 2 laforge
34 6 laforge
[[Image(osmocombb-rssi-spectrum.jpg)]] [[Image(osmocombb-rssi-spectrum-color.jpg)]]
35 1 laforge
36
In the spectrum view, you get a graphical spectrum plot
37
38
You can use it the following way:
39
 * Use the Up/Down buttons to adjust the scale
40 3 jolly
 * Use the Left/Right buttons to decrease/ increase the currently shown ARFCN
41 4 jolly
42
== Sync view ==
43
44
In the Sync view you will received system information messages. Some of them are displayed, like network and cell ID.
45
46
You can use it the following way:
47
 * Use the Down button to view ARFCNs of serving and neighbour cells
48
 * Use the Up button to view received levels of each timeslot
49
 * Use the Left/Right buttons to select ARFCN of serving cell to be monitored
50
 * Press green button to request channel, to measure distance and delay
Add picture from clipboard (Maximum size: 48.8 MB)