The DM20 datalink module supports both transmit & receive work modes and mainstream protocols like TRIMTALK, TRIMMK3 TT450S and TRANSEOT. Designed with 410-470 MHz range and 12.5 kHz channel spacing, the DM20 shows high compatibility with various products and solutions.
Featured surface-mounted design, 33×26.5×3.5mm small size, low power and good electromagnetic compatibility, the DM20 datalink module is specially designed for system developers to do various integrations.
With advantages of stable output power, high receiving sensitivity, low error rate and strong anti-interference ability, the DM20 shows strong performance for real-time data transmission. The advanced features ensure its high performance even in harsh environments, which is suitable for RTK application.
GENERAL
Frequency Range: 410-470 MHz
Channel Spacing: 12.5 kHz
Work Mode: Half-duplex
Frequency Stability: >1.5ppm
Modulation Mode: GMSK
Air Baud Rate:
9600bps/19200bps
Serial Port Baud Rate:
4800/9600/19200/38400/57600/115200bps
Power Supply: 3.3 – 4V
Impedance: 50ohm
Protocol Type: TRIMTALK, TRIMMK3 TT450S, TRANSEOT
EMISSION PERFORMANCE
Transmit power: 0.5W/1W/2W
RF Power stability: ±1dB
Adjacent channel power: >50dB
PHYSICAL & INTERFACE
I/O Interface: 80-pin SMT, pin pitch 1.27mm
Antenna Interface: IPEX male connector
Size (with connector): 33×26.5×3.5mm
Weight: 5 g
ENVIRONMENTAL
Operating temperature: -40℃ to +70℃
Storage temperature: -40℃ to +85℃