Transmitter Specifications
RF Output
Spurious and Harmonic
FM Hum and Noise
Audio Distortion
Audio Characteristics
Output Impedance
VHF : 10/2 Watt, UHF : 5/2Watt
70dB
40dB (12.5KHz)
Less than 3%
+1, -3dB from 6dB per octave pre-emphasis Characteristic from 300 ~ 3000Hz
50ohms
3. Specification
3.1 MD-100D/400D Overview
MD-100D/400D are digital RF modem that supports data and voice communication. It supports serial
interface, and it is set and operated with AT command, also it can be applied in various fields.
3.2 MD-100D/400D functions
-. RF Communication Data Speed : 9,600bps
-. Serial Interface support (AT Command) : 115,200 bps
-. Frequency band : 400MHz ~ 470MHz
3.3 MD-100D/400D External Interface
Picture 3-1) Main Pin Specification
Picture 3-2) MD-100D/400D Digital RF Modem