فهرست مطالب
What is an Automatic Antenna Tracker?
A device called an automatic antenna tracker can point a directional antenna towards a moving object, like a drone. The device is usually composed of a gimbal that can rotate an antenna in two directions, a controller to calculate the orientation and the location of the target and a communications link for sending and receiving data. Automatic antenna trackers can be used for applications that need long-range, reliable wireless communication. Examples include FPV (first-person view) پرواز کردن, radio direction finding, and satellite communication.
Drone automatic antenna trackers track a drone using GPS data or telemetry signals and then aim its antenna towards it to increase video or data transmission quality. Some types, such as the AAT Auto Antenna Tracker Gimbal, even alter the frequency or channel of transceiver frequencies/channels for interference-free operation.
Automatic Antenna Tracker AAT User Manual
پرسش و پاسخ
سوال: Does your automatic antenna tracker support raw data or Mavlink data?
on the aircraft transceiver, the TTL port that Receives the NMEA-0183 داده ها, is different from the port that I will Send and Receive the Row data on it? Because I will use NMEA-0183 To Send TTL GPS DATA to the Transceiver on the aircraft, Please confirm with me the data link is configured to send and receive raw Data. Not Mav link protocol is it okay?
پاسخ دهید: پشتیبانی کنید.
سوال: Do your automatic antenna tracker with GPS and compass?
پاسخ دهید: بله.
With the GPS function, the cost is higher than USD60 / RMB400.
سوال: How about the frequency range of your automatic antenna tracker AAT support?
پاسخ دهید: The gimbal can only withstand 3G radio frequency, and the loss is very large if it is higher. That means the radio frequency is from 0-3000Mhz/3G. به عنوان مثال, 800Mhz is 0.8G < 3جی, then it supports. The core morning transceiver 1428-1447Mhz, 1.4G is less than 3G, so it also supports.
If your transmission frequency is 3500Mhz, 3.5جی, then you can install the receiver on the directional antenna.
سوال: What is the HS code of your AAT?
پاسخ دهید: نام محصول: Direct Drive gimbal, Customs کد HS: 8543709990.
سوال: Does it support two antennae?
I have two antennas, one Yagi antenna designed for tracking at a frequency of 433MHz, and one patch antenna in microstrip design at a frequency of 5.8GHz for capturing the video signal from the drone.
پاسخ دهید: We understand that your wireless video transmission and radio telemetry are two independent devices. Our automatic antenna gimbal has only a one-way high-frequency feeder connector and sliding track.
If your wireless video transmission and wireless data transmission have two different operating frequencies, you need two automatic antenna trackers to track.
سوال: Does the automatic gimbal need to be equipped with this kind of adapter cable? Will it get stuck when rotating 360 درجه?
پاسخ دهید: Our antenna gimbal has a built-in slip ring and supports 360-degree rotation.
سوال: Our drone video transmission is RS232 data port, can you modify your automatic antenna tracker AAT to RS232 from default TTL?
پاسخ دهید: بله, we can customize the data port to RS232.
سوال: Can we send commands to the AAT? به عنوان مثال, the antenna goes to a specific angle When the trajectory is tracking or the connection is lost.
I read the user manual but could not find the commands, When there is no data, I want the gimbal to point to 25 degrees in azimuth concerning the north and 40 degrees in elevation.
پاسخ دهید: This requires programming software to connect to the gimbal.
You can run our program on your computer, or you can integrate our program into your ground station.
Here you can download our programmer.
MAVLinkProj.rar (sample code)
https://drive.google.com/file/d/1xEqn_lUoiieNuf7Aoh87d2-3bHTV0GUh/view?usp=sharing
Mavlink_MFD.rar (پروتکل)
https://drive.google.com/file/d/1TosLRNbjT1OZl38g4QpKQ46nnGXIMFAo/view?usp=drive_link
سوال: With the above software, I could not send a command. Must we use an upper TTL connector?
Does it have a specific setting? For integrating with our ground station, can you give us a sample code or a protocol?
پاسخ دهید: use the lower (firmware update cable) to send the command (MAVLinkProj).
سوال: What is the weight and size of the tracker only in the package?
پاسخ دهید: 35x32x17cm, and 5.5kg
سوال: The AAT sends a message 20hz to our ground station. We need a description of the parameters that have been sent. Two parameters Yaw and pitch is our command or the antenna’s real position?
پاسخ دهید: Yaw and pitch are your command values. but the tracker executes the command fast. so you can consider it to be of real value.
سوال: Your antenna tracking system has a rotary joint and slip ring. How much max RF power the rotary joint can accept? Like 10 وات یا 50 watts or more.
پاسخ دهید: No limits.
سوال: We have a direct GPS feed coming from air unit via rs232. Format is NMEA.It’s a standard GPS string, please double confirm it.
پاسخ دهید: بله, our engineer confirms that it is NMEA standard GPS string.
سوال: What is the range of the automatic antenna tracker for a walk snail gimbal?
پاسخ دهید: As for the transmission distance of the automatic pan-tilt flat antenna, we can understand it from a parameter. The gain of a 1.2-meter omnidirectional fiberglass antenna is about 7 dBi. با این حال, if it is a 40×40 cm directional antenna, its gain can reach 14-16 dBi, which means that the automatic antenna tracker with directional antenna has twice the antenna receiving sensitivity than the omnidirectional fiberglass antenna, and the supported transmission range can be more than twice as long.
سوال: Can we use a 4.4–5.0 GHz antenna panel and omni antenna with our 2.4 GHz auto tracking system?
پاسخ دهید: خیر. The AAT (Auto Antenna Tracker) RF system supports frequencies تا 3 GHz maximum.
For a 2.4 GHz AAT system:
- ✔ 2.4 GHz antennas are supported and work normally
- ✔ Compatible with 2.4 GHz panel antennas and omni-directional antennas
- ❌ 4.4–5.0 GHz antennas are not supported
- ❌ Higher-frequency antennas will cause significant RF signal attenuation and poor performance
The maximum supported operating frequency of the AAT RF system is:
Maximum Frequency: ≤ 3 گیگاهرتز
Using a 4.4–5.0 GHz antenna on a 2.4 GHz system is not recommended because the antenna frequency range does not match the RF module, which may result in:
- Reduced communication range
- Weak signal reception
- Unstable tracking performance
- Possible failure to lock the RF signal
If your application requires 4.4–5.0 GHz tracking, please contact us with your system details. We can evaluate a suitable RF version or customized solution.
سوال: We have purchased two AAT trackers. Can we access or configure the LCD tracker settings via TTL serial connection, or is it only possible via physical buttons?
پاسخ دهید: The TTL serial interface can be used to output tracker status and operational data, اما این کار را می کند not support full menu access or parameter configuration.
In detail:
- ✔ TTL can transmit real-time tracking status (به عنوان مثال, موقعیت, سیگنال, system state, و غیره)
- ✔ Useful for monitoring and integration into external systems
- ❌ TTL cannot be used to access the LCD menu system
- ❌ No support for remote button emulation or full configuration control via serial commands
The LCD menu and configuration functions are designed for physical operation only.
شما می توانید read data via TTL, اما configuration and menu control must be done through the device buttons and LCD interface.
سوال بپرسید
از پاسخ شما سپاسگزاریم. ✨