RX Received Signal Strength Indicator (RSSI)
The BiM1 wide range RSSI which measures the strength of an incoming signal over a range of 60dB or
more. This allows assessment of link quality and available margin and is useful when performing range
tests.
The output on pin 11 of the module has a standing DC bias of up to 0.5V with no signal, rising to 2.4V
at maximum indication. ∆Vmin-max is typically 1V and is largely independent of standing bias variations.
Output impedance is 56kΩ. Pin 11 can drive a 100µA meter directly, for simple monitoring.
Typical RSSI characteristic is as shown below:
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
RF Level (dBm)
Figure 7: RSSI level with respect to received RF level at BiM1 antenna pin
Radiometrix Ltd.,
BiM1 transceiver, TX1H high power transmitter data sheet
Page 7
RADIOMETRIX [ RADIOMETRIX LTD ]
