Product Descriptions:·RFD900A digital transmission is a data transmission module specially designed and developed for model drones over long distances
·Compact size and excellent performance, 902-928MHz communication band
·With a transmission distance of 40km and above and a transmission rate of 250kbps
Product features:1.No distinction between transceiver and transmitter design,each module is integrated with USB serial chip,USB and UART interface automatically switch,USB priority;
2.Operating frequency range 902-928MHz,ISM band.
3.Transmitting circuit is designed with low noise amplifier greater than 20DB,and low-pass filtering unit is added;
4.Adjustable transmitting power,maximum 1W transmitting power;
5.High-sensitivity LNA and SAW circuit in front of the receiving circuit;
6.Outdoor communication distance of 40 km or more(depending on antenna performance and communication rate requirements);
7.Over-the-air data rate up to 250Kbps;
8.Dual antenna interface,supporting antenna diversity and differential antenna configuration;
9.Support local radio AT command configuration and remote radio RT command configuration;
10.With module temperature monitoring function,automatic duty cycle adjustment according to temperature to avoid overheating;
11.Operating temperature -40 to + 85 degrees Celsius;
Product Parameters:Supply voltage:rated 5V,minimum 4V,maximum 5.5V
Transmitting current:~1A (maximum power mode)
Receiving current:~60mA
Size:33mm*53mm*9.5mm
Weight:23g
Performance index:
Communication rate: 4,8,16,19,24,32,48,64,96,128,192,250kbps
Indoor distance: 500m - 1km
Outdoor direct vision range: 40km or more, depending on antenna performance
Transmit power: 0 to 30dBm, 1dBm adjustable in steps
Receive sensitivity: > 121 at low rates, > TBA at high rates
Low noise amplifier: >20dB
Characteristics:
Serial data interface level: standard 3.3V, up to 5V
Configuration method: AT command, APM Planner, custom configuration tool
Operating frequency band: 902MHz -928MHz
Spread Spectrum Technology: FHSS (Frequency Hopping Spread Spectrum)
Serial rate: 2400,4800,9600,19200,38400,57600,115200bps
Optional antenna: Yagi, ? wave dipole, ? wave monopole antenna
Compliance Standards：FCC Part 15.247,AS/NZS 4268:2008
Network Security
Addressing method: Network ID:0 -499
Channels: up to 50 FM channels
Topology network support:point-to-point,point-to-multiple(point-to-multiple need to brush version 2.X firmware to support)
Product Specifications:RFD900A digital transmission module(23g) ×2
5DB SMA internal pin antenna (16.7g) ×4
Micro-USB data cable ×1
Pixhawk flight control UART connection cable/ZH1.25 interface × 1
Pixhawk flight control UART cable/GHS1.25 latch interface ×1
