Pp (Output Power In Dbm); Ca (Cca Threshold); Db (Last Packet Rssi) - Digi XBee3 DigiMesh 2.4 User Manual

Rf module
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AT commands
PL setting
XBee3 TX power
2
2 dBm
1
-1 dBm
0
-5 dBm
Default
4

PP (Output Power in dBm)

Display the operating output power based on the current configuration (Channel and PL setting). The
values returned are in dBm, and negative values are represented in two's complement; for example, -
5 dBm = 0xFB.
Parameter range
0 - 0xFF [read-only]
Default
N/A

CA (CCA Threshold)

Defines the Clear Channel Assessment (CCA) threshold. Prior to transmitting a packet, the device
performs a CCA to detect energy on the channel. If the device detects energy above the CCA
threshold, it will not transmit the packet.
The CA parameter is measured in units of -dBm.
Parameter range
0, 0x28 - 0x64
Default
0x0 (CCA disabled)

DB (Last Packet RSSI)

Reports the RSSI in -dBm of the last received RF data packet. DB returns a hexadecimal value for the
-dBm measurement.
For example, if DB returns 0x60, then the RSSI of the last packet received was -96 dBm.
DB only indicates the signal strength of the last hop. It does not provide an accurate quality
measurement for a multihop link.
If the XBee3 DigiMesh RF Module has been reset and has not yet received a packet, DB reports 0.
This value is volatile (the value does not persist in the device's memory after a power-up sequence).
Parameter range
[read-only]
Digi XBee3® DigiMesh RF Module User Guide
XBee3-PRO TX power
8 dBm
3 dBm
-5 dBm
RF interfacing commands
56

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