User's Guide

3
!
Basic specification
-
Dimension : 70
×
47
×
9mm
-
Weight : 37 g
-
Supply voltage : 5V
-
RF protocol : RD_LAP19.2 on Data TAC4000
&
5000
Μ∆Χ4800 ον ∆ατα ΤΑΧ4000
-
Host protocol : NCL1.2
2. Specification and features
A. Environment
-
Operation temperature : -30 ~ +60
-
Storage temperature : -35 ~ +80
-
Humidity : normal operation after 8 hours storage in 95% non-
condensed
B. General RF specifications
-
Modulation : 4FSK for RD-LAP
2ΦΣΚ φορ ΜΧ
-
Mode : half-duplex
-
Bit rate : 19200bps for RD_LAP, 4800bps for MDC
C. Radio interface
-
Channel spacing : 25KHz
-
Bandwidth : 20KHz
D. Transmitter
Frequency : 806 ~ 821 MHz
Transmit power : 2Watt
Frequency stability : 2.5ppm
Modulation stability :
±
10%
FM deviation : 5.6KHz for RD_LAP (Logic +3+3-3-3)
2.5KHz for MDC (Logic +1-1)
Harmonic and Spurious Emission : -60dBc
RX to TX Transition Time :  8ms
E. Receiver
Frequency : 851 ~ 866MHz
Sensitivity Static : -114dBm for the MDC
: -94dBm for the RD_LAP
Adjacent and Alternate Channel Selectivity : 40dB/45dB for the Data
55dB/60dB for the Tone
CO-Channel Decode Ratio : 8dB for the MDC
: 16dB for the RD_LAP
Spurious Response Attenuation : 60dBc
Image Frequency rejection : 50dBc