W2004R (UHF Receiver board)
W2004R (UHF Receiver board)
Brief Detailed
UHF receiver
Model: W2004R
SPECIFICATIONS                                          (Version 1.0)
 
Frequency
821.2375MHz
 
Channel Spacing
25KHz
 
Signal Format
POCSAG
 
Data Transmission Rate
512bps or 1200bps or 2400bps
 
Modulation System
Carrier frequency shift keying (NRZ)
 
Frequency Deviation
±4.5KHz
 
Receiving Sensitivity
-122dBm (Min)
 
Selectivity
60dB ±25KHz
 
Image rejection
45dB
 
Spurious Rejection
50dB
 
Frequency Stability
±3ppm
 
Operating Current
16mA
 
Operating Voltage
+5.0V
 
Operating Temp. Humidity
-10 to 40, 95% (at 40)
 
RF input
Data output
Storing Temp. Humidity
50 OHM (SMA)
RS232
-10 to 70, 95% (at 40)
RS232 FORMAT
 
Baudrate :
1200 BPS
 
Data bit :
8 bit
 
Stop bit : 
1 stop
 
No check bit