1.Product Introduction
1.1 Description
The receiver operates at 1090MHz. After receiving the ADS-B RF signal, the receiver will automatically demodulate the signal, and the TTL interface of the receiver will synchronously output the MavLink V2.0 format message successfully demodulated.
1.2 Features
- High sensitive
- Smallest ADS-B implementation on a surface of <2.5cm²
- Excellent reliability
- Excellent out-of-band rejection
1.3 Application
- ADS-B Signal Transceiver
- Pico-satellite payload
- Flight simulator
- Airspace surveillance
- Sounding balloon
- Collision avoidance
- UAV/drone
2.Technical Specifications
2.1 Basic Parameters
|
Parameters*
|
Minimal
|
Typical Case
|
Maximum
|
Unit
|
|
Supply Voltage
|
4.5
|
5
|
5.5
|
V
|
|
Operating Current
|
|
140
|
|
mA
|
|
Modulation Method
|
|
BPPM
|
|
|
|
Airspeed
|
|
1e6
|
|
bps
|
|
Reception Frequency1
|
|
1090
|
|
MHz
|
|
Doppler frequency deviation
|
|
±4
|
|
MHz
|
|
Receiving sensitivity 20% BER
|
|
-82
|
|
dBm
|
|
Receiving Dynamic Range
|
-100
|
|
-20
|
dBm
|
|
Antenna impedance
|
|
50
|
|
Ω
|
|
Antenna Interface1
|
|
U.FL
|
|
|
|
Output Interface
|
|
3.3V TTL
|
|
|
|
Interface Format
|
|
460800,8,1,N,N
|
|
|
|
Data Protocols
|
|
MavLink V2.0
|
|
|
|
Target Capacity
|
|
200
|
|
Aircraft
|
|
Action Distance2
|
|
100
|
|
Km
|
|
Antenna Gain
|
|
2.5
|
|
dBi
|
*Note: The above parameters are measured at room temperature 25℃.
1: The antenna interface is impedance matched and cannot be changed at will.
2: Please replace the high gain antenna if you want to get a greater acceptance range.
2.2 Limit Parameters
|
Limit Parameters
|
Numerical Value
|
Unit
|
|
Maximum Input Voltage
|
5.5
|
VDC
|
|
Maximum input power of RF signal
|
-20
|
dBm
|
|
Operating Temperature
|
-25~+85
|
℃
|
|
Storage Temperature
|
-25~+85
|
℃
|
* Note: Exceeding the above parameters may cause permanent damage to the equipment.
2.3 Data Interface
The GH1.25-4P interface pin definition for the receiver is shown in the table below:
|
Function
|
Pin
|
|
VCC 5V+
|
1
|
|
TTL RXD
|
2
|
|
TTL TXD
|
3
|
|
GND
|
4
|
3.Product Use
The ADSR800 receiver data interface uses the GH1.25-4P male interface, and the receiver can directly connect to the PX4 or other brands (support MavLink) flight control when using the TTL interface.
When TTL is used to communicate with PX4 flight control, the random distribution connection line can be directly connected with Telem1 interface of flight control, and the baud rate can be set through QGC. When using other brands of flight control, the user needs to define the connection cable of the corresponding interface according to the flight control interface, and set the corresponding parameters.
The default output format of the receiver TTL interface is 460800,8,1,N,N.
If the user antenna can receive the ADS-B signal, the receiver will demodulate the data and output the data from the TTL port. The data format is as follows:
Example of a message in MavLinK format
If users want to parse the above data themselves, please refer to the MavLink official website:
https://mavlink.io/en/messages/common.html#enums
