40
Sensitivity (10 db S/N)
-105
dBm
Image Frequency Attenuation (1st IF = 45 MHz)
35
dB
Local Oscillator Leakage
2
nW
Adjacent Channel Attenuation
55
dB
RSSI Dynamic
90
dB
Operating Current (incl. onboard microcontroller)
c
20
mA
Transmitter (all measurements made on a 50 Ohm resistive
load)
Output Power
7
9
10
dBm
Spurious Radiation (0 to 862 MHz)
2
nW
Spurious Radiation (862 MHz to 3.5 GHz)
200
nW
Adjacent Channel Power (12.5 kHz version)
-32
dBm
Adjacent Channel Power (25 kHz version)
-44
dBm
Occupied Bandwidth (12.5 kHz version)
8.5
kHz
Occupied Bandwidth (25 kHz version)
15
kHz
Operating Current (incl. onboard microcontroller)
50
mA
SDI-12
Sensor Supply Voltage
d
5.5
6.0
10.0
V
Sensor Supply Current
e
500
mA
a. Data rate is content dependent.
b. This parameter represents the tuning range; the switching range may be limited in
the software to a narrower space (even to the extent of a single channel).
c. Continuous duty.
d. This applies for sensors which are powered by the RTU’s internal battery.
e. This is the maximum peak current for all sensors on the SDI-12 bus.
Table 2. Operational Parameters (Continued)
Parameter
Min
Typ
Max
Unit