Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM AT Command
Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM AT Command
Download the Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions below if you need a PDF file.
Update Record:
| версия | дата | баяндоо |
| 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 | 2016-10-24 2016-11-1 2016-12-26 2017-2-14 2017-2-28 2017-3-27 2017-4-19 2017-5-18 2017-9-12 2018-3-15 2019-6-25 2023-2-24 | Initial version ATDR reply distinguishing module ATSE, ATGE add audio switch Add ATSP protocol Add ATST, ATGT protocol ATGE command add AESfor status acquisition Added ATGB protocol AV and HDMI output control Support for obtaining the current AV output standard Added ATSU, ATGUcommands Added ATOSD, ATSIP, ATGIP commands Added ATSAD, ATGAD commands |
Users may need to modify the configuration parameters of the module during the use of the COFDM modulator and demodulator module. In order to simplify the user’s operation, we design the parameter configuration into a few simple AT commands. The user only needs to use the specified AT command and pass the corresponding parameters to complete the parameter setting of the COFDM module.
Suitable Models
-
Vcan1870 учкучсуз UAV зымсыз видео өткөргүч жана кабыл алгыч үчүн COFDM релелик кайталоочу модулу -
COFDM модулятору демодулятор модулу Кодер декодер HDMI CVBS AV киргизүү AES 256 FHD RF агымы -
Камера үчүн зымсыз видео өткөргүч жана кабыл алгыч, HDMI HD H265 264 коддоочу 1W/2.5W PA 1080P60 Vcan1726 -
HDMI - IP коддоочу модулятору CVBS H.265 H.264 коддоо тактасы PCBA Ethernet RSTP UDP үчүн UAV Drone Robotic
Command Introduction
The AT command for configuring COFDM module parameters starts with “AT” and ends with an underscore “_”. Each AT command has several or no parameters, and each AT command has a return value. For details, please refer to the introduction of the following commands.
Users can configure the parameters of the module through the configuration serial port (TTL деңгээл, 3.3V) of the COFDM module. For detailed serial port configuration, refer to the figure below. Please use tools such as “Serial Port Debugging Assistant” to send AT commands to the COFDM module, pay attention to the use of текст, Мисалы:
Command Classification
The AT commands for configuring COFDM module parameters are mainly divided into the following two categories:
| Query Commands | ATDR, ATGD, ATGE, ATGI , ATGR, ATGT, ATGB, ATGU, ATGIP |
| Setting Commands | ATSD, ATSG, ATSM, ATSE, ATSI, ATSO, ATSR, ATSP, ATST, ATSU,ATOSD, ATSIP |
From the perspective of whether to save after power-off, the setting commands can be divided into:
| Power-off Saving Commands | ATSD, ATSE, ATSI, ATSO, ATSR, ATSP, ATST, ATSU, ATSIP |
| Power-off Not Saving Commands | ATSG, ATSM, ATOSD |
According to the configuration transmitter or receiver, the classification is as follows:
| Sender Configuration Commands | ATDR, ATSD, ATGD, ATSG, ATSM, ATSE, ATGE, ATSI, ATGI, ATSO, ATSP, ATST, ATGT, ATSU, ATGU, ATOSD |
| Receiver Configuration Commands | ATDR, ATSR, ATGR, ATSP, ATST, ATGT, ATGB, ATSIP, ATGIP |
Command Details
Ping Command
| формат | ATDR_ |
| Parameter | Жок |
| колдонуу | for the integrated system to check whether the serial port is connected and identify the connected modules. |
| Кайтаруу мааниси | RCB returns the “device profile” string SUE1 returns “ATDRSUE1 OK” string SHD1 returns “ATDRSHD1 OK” string |
| пикир | суроо буйругу |
Set Device Command
| формат | ATSD $(mimo), $(gi), $(COFDM зымсыз берүү системасы берүү ылдамдыгын эсептөө), $ (constellation), $(жыштык(KHz)), $(bw(KHz)), $(tx1_gain), $(tx2_gain)_ Мисал: ATSD0,1,0,0,800000,8000,86.0,86.0_ |
| Parameter | One Antenna/Dual antenna mimo: 0 mimo disable; 1 mimo enable Guard Interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1/4 Convolution Code Rate: 0 1/2; 1 2 /3; 2 3/4; 3 5/6; 4 7/8; жылдыздар чогулмалары: 0 QPSK; 1 QAM16; 2 QAM64; RCB Carrier Center Frequency(кГц) 200000~2700000(200MHz~2.7GHz, 1KHz кадам) RC900 Carrier center Frequency(кГц) 750000~930000(750MHz ~ 930MHz, 1KHz кадам) RCB Channel bandwidth bw(KHz) 2000~8000(2МГц~8МГц, 1KHz кадам) RCB Channel bandwidth bw(KHz) 2000~8000 (2МГц~8МГц, 1KHz кадам) Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB stepping Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB stepping |
| Return Value | сыяктуу:ATSD0,1,0,0,800000,8000,86.0,86.0_ SISO,GI: 1/16, CR:1/2, MOD: QPSK, жыштык:800000KHz,bw:8000KHz,tx1_gain:86.000000 tx2_gain:86.000000 OK |
| Эскертүү | Set command, save when power off. Different Bandwidths, сакчылары аралыгы, Convolution code rates, Data rate calculation formulas corresponding to constellations Air interface rate Rate(COFDM зымсыз берүү системасы берүү ылдамдыгын эсептөө) COFDM зымсыз берүү системасы берүү ылдамдыгын эсептөө (өткөрмө жөндөмдүүлүгү(MHz) * 8.0/7.0) / (1+GI) * 1512/2048*COFDM зымсыз берүү системасы берүү ылдамдыгын эсептөө(COFDM зымсыз берүү системасы берүү ылдамдыгын эсептөө) * COFDM зымсыз берүү системасы берүү ылдамдыгын эсептөө * 188/204. Taking 8MHz bandwidth as an example, different guard intervals, convolution code rates, data rates corresponding to constellations and required receiving signal-to-noise ratios  |
Set Gain Command
| формат | ATSG$( tx1_gain),$( tx1_gain)_ Мисал: ATSG85.0,85.0_ |
| Parameter | tx1_gain: тараткыч 1 пайда tx2_gain: тараткыч 2 пайда |
| колдонуу | To dynamically adjust the output power. If the signal SNR/RSSI of the receiver is high, the output power can be reduced through the remote control link. When the SNR/RSSI of the end signal is low, increase the output power (жибергич) |
| Return Value, | Мисал: ATSG85.0,85.0_set gain 85.000000 85.000000 OK |
| пикир | setting command, power off will not save. |
Set Modulation Mode commanг
| формат | ATSM$(gi), $(COFDM зымсыз берүү системасы берүү ылдамдыгын эсептөө), $(constellation)_ Мисал: ATSM1,1,2_ |
| Parameter | Gard interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1 /4; Convolution code rate: 0 1/2; 1 2/3; 2 3/4; 3 5/6; 4 7/8; жылдыздар чогулмалары: 0 QPSK; 1 QAM16; 2 QAM64 |
| колдонуу | Dynamically adjust the air interface rate, the air interface rate can be increased when the distance is short, and the air interface rate can be reduced when the distance is long (жибергич) |
| Return Value | Мисал:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, OK |
| пикир | setting command, power off will not save. |
Get Device Status Command
| формат | ATGD_ |
| Parameter | Жок |
| колдонуу | query the current number of transmit antennas, күзөт аралыгы, convolution code rate, number of constellations, transmit frequency, жөндөмдүүлүгү, gain parameters (жибергич) |
| Return Value | Мисал: ATGD_ SISO, GI:1 /16, CR: 1/2, MOD: QPSK, жыштык: 800000KHz, bw: 8000KHz, tx1_gain: 86.000000 tx2_gain: 86.000000 OK |
| пикир | суроо буйругу |
Set Encoder Command
| формат | ATSE$(llc),$(rt),$(bitrate) ,$(gop),$(аудио)_ Мисал: ATSE0,0,0.0,0,0_ |
| Parameter | 1. Enhanced data reliability option llc: 0 disable; 1 иштетүү (requires the receiving end to enable this option at the same time, use in pairs, because more redundant data is added to enhance reliability, the video bit rate of the transmitting end should be set when this option is turned off half of) 2. Real-time priority/quality priority rt: 0 image quality priority; 1 real-time priority; 3. Битрейт: 0 let system decide; >0 specify bitrate(float) 4. I frame interval GOP: 0 let system decide; >0 specify GOP 5. Audio encoding option audio: 0 disable; 1 иштетүү |
| колдонуу | Used to set encoding parameters (тараткыч) |
| Return Value | Мисал:ATSE0, 0,0.0,0,0_ MODE:0,RT:0,bitrate: 0.0Mbps,gop:0,аудио:0,OK |
| пикир | setting command, save when power is off. |
Get Encoder Command
| формат | ATGE_ |
| Parameter | Жок |
| колдонуу | querying encoding parameters (sending end) |
| Return Value | Мисал:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,аудио:0,aes:0, OK |
| пикир | Query command AES means the current encryption status: 0 disable; 1 иштетүү |
Get Input Command
| формат | ATGI_ |
| Parameter | Жок |
| колдонуу | query the current camera input parameters (жибергич) |
| Return Value | Мисал:ATGI_input_size: 1080б, input_rate: 60FPS, sensor_type: hdmi,OK |
| пикир | суроо буйругу |
Set Input Command
| формат | ATSI$(input_size),$(input_rate)_ Мисал: ATSI1080,25_ |
| Parameter | 1. Input resolution input_size: 0 let the system detect; >0 specify input size 2. Input frame rate input_rate: 0 let the system detect; > 0 specify input fps |
| колдонуу | To specify the input resolution and frame rate to meet some special signal sources, or some special application needs (жибергич) |
| Return Value | Мисал: ATSI1080,25_ Input_size:1080б,input_rate: 25FPS, OK |
| Эскертүүлөр | After the user specifies the input resolution and frame rate through this command, the system will no longer detect the signal source (use with caution). The user can restore the default through the following command: ATSI0,0_Set the command and save it after power-off. |
Set Output Command
| формат | ATSO$(output_size),$(output_rate)_ Мисал: ATSO720,30_ |
| Parameter | 1. тараткыч: encoding output resolution output_size: 0 equal to input_size; >0 specify output size 2. кабыл алуучу: HDMI output resolution (720, 1080) 3. тараткыч: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (FPS) 4. кабыл алуучу: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60) |
| колдонуу | 1. тараткыч: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction 2. кабыл алуучу: used to configure the resolution and frame rate of HDMI output |
| Return Value | Мисал: ATSO720,30_ output_size: 720б, output_rate: 30FPS, OK |
| Эскертүүлөр | 1. For HDMI input only, this command is invalid for AV input 2. Output_size <= input_size; output_rate<=input_rate 3. Set the command and save it after the power is off. |
Set Input Sources Command (switch HDMI / CVBS киргизүү)
| формат | ATSU$(vin),$(ain)_ Мисал: ATSU0,1 _ |
| Parameter | 1. Video input selection VIN: 0 let the system detect; 1 force CVBS input; 2 force hdmi/SDI input 2. Audio input selection AIN: 0 let the system detect; 1 force analog input |
| колдонуу | Used to meet specific application requirements (Мисал: HDMI/SDI input video, MIC input audio) |
| Return Value | Мисал: ATSU0,1_ ATSU0,1 OK |
| пикир | setting command, power-off save. |
Get User Command
| формат | ATGU _ Мисал: ATGU_ |
| Parameter | Жок |
| колдонуу | To query user-specific configuration |
| Return Value | Мисал: ATGU_ ATGU0,1 OK |
| пикир | суроо буйругу return parameter description please refer to the ATSU command |
Set Receiver Command
| формат | ATSR $(жыштык), $(bw ), $(llc), $(cvbs)_ Мисал: ATSR320000,6000,0,0_ |
| Parameter | 1. DR2C carrier frequency freq(KHz) 200000~860000(200MHz ~ 860MHz, 1KHz кадам) 2. DR900 carrier center frequency freq(KHz) 200000~1600000(200MHz~1.6GHz, 1KHz кадам) 3. DR2C channel bandwidth bw(KHz) 2000~8000(2МГц~8МГц, 1KHz кадам) 4. DR900 channel bandwidth bw(KHz) 3200~8000(3.2МГц~8МГц, 1KHz кадам) 5. Enhanced data reliability option llc: 0 disable; 1 иштетүү (it is required that the transmitter should also enable this option at the same time, and use it in pairs. Since more redundant data is added to enhance reliability, the video bit rate of the transmitter should be set to when this option is turned off half of) 6. AV output system cvbs: 0 pal; 1 ntsc |
| колдонуу | To set the receiver parameter |
| Return Value | example: ATSR320000,6000,0,0_ ATSR320000,6000,0,0 OK |
| пикир | setting command, save when power is off. |
Get Receiver Command
| формат | ATGR_ |
| Parameter | Жок |
| ATGR_ | the receiving end parameter |
| Return Value | Мисал: ATGR_ ATGR320000,6000,0,aes:0,cvbs:0 OK |
| пикир | 1. Query command 2. Aes parameter indicates the current encryption status: 0 disable;1 иштетүү 3. CVBS parameter Indicates the current AV output standard: 0 pal;1 ntsc |
Get Bit Error Rate Command
| формат | ATGB_ |
| Parameter | Жок |
| колдонуу | querying the bit error rate and signal strength of the dual antennas at the receiving end |
| Return Value | Мисал: ATGB_ ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 OK |
| Эскертүүлөр | 1. Query commands 2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% үчүн 100.0% 3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 үчүн 100 4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock) |
Set Password Command
| формат | ATSP$(купуя сөз), $(купуя сөз)_ Мисал: ATSP123456, 123456_ |
| Parameter | AES key password: 6-digit password (ASCII) AES key password: 6-digit password (ASCII) (repeat it for confirmation) |
| колдонуу | Used to set the AES key of the transceiver (жибергич жана кабыл алгыч) |
| Return Value | Мисал: ATSP123456_ ATSP123456 OK |
| пикир | 1. When the password is all 0, AES encryption is turned off. 2. Set the command and save it after powering it off. |
Set Data Transfer Command
| формат | ATST$(берүү ылдамдык бирдиги), $( parity)_ Мисал: ATST115200,0_ |
| Parameter | 1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200 2. Check Code: 0: Жок; 1: Odd; 2: Even |
| колдонуу | Used to set the baud rate and parity bit of the serial port for data transparent transmission |
| Return Value | Мисал: ATST115200,0_ ATST115200,0 OK |
| Эскертүүлөр | Set command |
Get Data Transfer Command
| формат | ATGT_ |
| Parameter | Жок |
| колдонуу | Used to query the baud rate and check code |
| Return Value | Мисал: ATGT_ ATGT115200,0 OK |
| Эскертүүлөр | Query command |
Set IP Address Command
| формат | ATSIP$(ip), $(ip)_ Мисал: ATSIP192.168.1.215,192.168.1.215_ |
| Параметрлер | Local IP address Local IP address (repeat to confirm) |
| колдонуу | Used to set the receiver IP address |
| Return Value | Мисал: ATSIP_192.168.1 .215,192.168.1.215_ ATSIP192.168.1.215 OK |
| Эскертүүлөр | 1. After setting the IP address, the receiving end needs to be restarted to take effect. 2. Set the command and save it after powering it off. |
Get IP Address Command
| формат | ATGIP_ Мисал: ATGIP_ |
| Parameter | Жок |
| колдонуу | кабыл алуучу тараптын учурдагы IP дарегин суроо үчүн |
| Кайтаруу мааниси | Мисал: ATGIP_ ATGIP192.168.0.215 OK |
| пикир | суроо буйругу |
OSD Overlay Protocol
| формат | ATOSD$(idx), $(х), $(y), $(str)_ Мисал:ATOSD0,40,20,height: 100m_ |
| Parameter | 1. IDX index: 0~7 (supports OSD overlay for 8 areas) 2. X-coordinate: 0~1919 3. Y coordinate: 0~1079 4. str: the string to be displayed at the corresponding coordinates (the space symbol is used to clear the display) |
| колдонуу | on the video screen.OSD information |
| Кайтаруу мааниси | Жок |
| Эскертүүлөр | 1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 пиксел, and the system will correct the coordinates according to the actual display situation. 2. The ‘_’ character cannot be contained in the str parameter |
Set Gain To Adjust
| формат | ATSAD$(жыштык),$(adjust) _ Мисал:ATSAD700000,2.5_ |
| Parameter | wireless central working frequency： Freq(KHz) 200000~2700000(200MHz~2.7GHz, step: 1KHz) Adjust the value(дБ): ATSD cmd will subtract this value to set the wireless gain |
| милдети | Specify and adjust the value for the wireless gain setting using by ATSD cmd |
| Кайрылуу | Мисал: ATSAD700000,2.5_ freq:700000,adjust:2.50 OK |
| Комментарийлер | Setting command is still valid when stopping power or resetting. |
Get Gain To Adjust
| формат | ATGAD[$(жыштык)]_ Мисал:ATGAD700000_ |
| Parameter | wireless central working frequency： Freq(KHz) 200000~2700000(200MHz~2.7GHz, step: 1KHz) When no parameter provides, it will list all the freq that have adjusted value. |
| милдети | Inquiry adjust the value for wireless gain setting using ATSD cmd |
| Кайрылуу | Мисал: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 OK |
| Комментарийлер | Inquiry command. |
Serial Port Utility software download
HTTPS://www.alithon.com/downloads
FAQ
1. How can I return to the No Password setting with 000000 indications after the change?
Reset the password to 000000 (one must not be missing) through the Parameter Configuration Panel Board.
or set it through жана ATSP_command
2. I see that Gain is the output power of the transmitter. Please tell me the range of settings of this parameter. All setting level (бекемдөө) good for linear output operation? Or do you suggest some limited range for better linear operation?
The Gain of the COFDM configuration is the internal Gain, not the actual output power of the transmitter. The internal gain range is 0~89.75dB and the linear output:
1. At around 300~500MHz, the Gain is set to 89.75, and the actual output power of the transmitter module is about -5dBm.
2. At around 1000~1500MHz, the Gain is set to 89.75, and the actual output power of the transmitter module is about -6dBm to -10dBm.
3. I tried to set – B bandwidth (кГц) and E bit rate (Mbps). When I set E, the new value does not apply. Ошентип. the E setting is only for monitoring of available bitrate? if I wish to change the E (Битрейт) I have to change only B (жөндөмдүүлүгү)? Am I right?
It is not recommended to modify the video bit rate ‘E’ directly, because if the output video bit rate is greater than the wireless air interface rate, the system will not work normally.
By default, the internal video bit rate ‘E’ will be set to 0 for automatic. Customers only need to modify ‘B’ to modify the wireless parameters, and the video bit rate will automatically adapt.
You can also adjust the wireless air interface rate by modifying GI and CR.
For more details on the Encoder Modulator Decoder Demodulator Module, please send an inquiry to us.
COFDM модулятору демодулятор модулу Кодер декодер HDMI CVBS AV киргизүү AES 256 FHD RF агымы
COFDM модулятору демодулятор модулу Кодер декодер HDMI CVBS AV киргизүү AES 256 FHD RF агымы
Мазмуну
Another side view
COFDM Encoder module, CVBS / HDMI киргизүү, IP output
For More details about the COFDM encoder board, please visit here
COFDM Encoder module Advantage:
- Ультра аз кечигүү H.265/H.264 аудио жана видео коддоо максималдуу колдоо 1080P@60 реалдуу убакытта видео тартуу жана коддоо
- HDMI же AV аудио жана видео киргизүү, коддоодон кийин, Ethernet портунун чыгышы же зымсыз модулга чыгуу, видео коддоо бит ылдамдыгы динамикалык конфигурацияланышы мүмкүн
- аудио киргизүү жана аудио чечмелөө чыгарылышты колдоо
- Эки видеону колдоо (HDMI + AV) бир убакта киргизүү коддоо (тандоо, демейки HDMI же AV коддоо болуп саналат, эки киргизүү булагынан бирин тандаңыз). )
- Web UI же сериялык порт UART AT буйругу конфигурацияны башкаруу үчүн
COFDM transmitter module
COFDM modulator-demodulator datasheet download
COFDM demodulator Vcan1776RX-H264 datasheet
The last version of the TX RX board
TX: V6.5.6p
RX: 4.1.2б
Көп берилүүчү суроолор
- Question1: Could you please tell me part number of this component, we try to find localy and check. жооп 1: It is a inductance named LOH32PN2R2NNC.
- Suggest Check Points: If the power supply current of the board is well but there is no RF output, maybe the below component TC1-1-13MX+ is generally damaged.
- In order to avoid damage to this device during transportation (the device itself is relatively high), we ordered red glue protection for this device when we shipped it.
- The engineer also suggests that you check to see if the cable is loose or in poor contact.
- Please try to replace the FPC cable connecting the two boards
- We can provide spare parts if you're sure which one.
Албетте
Сураныч, төмөнкү шилтемени текшериңиз.
Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM AT Command
3. суроо, If our camera quality is good enough for both 4 MHz and 8 MHz жөндөмдүүлүгү. Бул учурда, Should the customer choose 4 MHz же 8 MHz?
жооп: Our one-way COFDM shipments use 4Mz wireless bandwidth by default, corresponding to a video bit rate of 3.12Mbps, which is enough for 1080p; If changed to 8MHz wireless bandwidth under the same conditions, the video bit rate doubles to 6.24Mbps. All customers can choose between wireless bandwidth 4MHz and 8MHz, even 6MHz can also be considered.
4. суроо: Which is better for this tx+rx set from a receive sensitivity view?
жооп: For wireless links, it can be simply considered that the receiving sensitivity will be higher at lower wireless bandwidths. From the perspective of receiving sensitivity, 4MHz>6MHz>8MHz
Албетте
Сураныч, төмөнкү шилтемени текшериңиз
Vcan1870 учкучсуз UAV зымсыз видео өткөргүч жана кабыл алгыч үчүн COFDM релелик кайталоочу модулу
Single channel receiving sensitivity:
-97+/-1дБм at QPSK 8MHz,
-98+/-1дБм at QPSK 6MHZ,
Sensitivity increased by 3dbm when receiving with dual antennas
The receiver default firmware supports RTSP player, some clients prefer UDP player, which we also can offer, then RTSP player doesn't support. （RTSP and UDP can only choose one of the two firmware）
Сураныч, төмөнкү шилтемеден жүктөп алыңыз.
Splayer_v4.2_2020.6.6
https://drive.google.com/file/d/1ihzUhfnx2Wo3zLO8UAs1aUQeLswonJD-/view?usp=sharing
Splayer_v4.3_2022.10.22
https://drive.google.com/file/d/1PQc-LZ55qGnjeMsjkHYSloHfY3NEUsGH/view?usp=drive_link
Албетте, сураныч, төмөнкү сүрөттү текшерүү.
How to switch HDMI or CVBS video input via the UART AT command?
How to upgrade the COFDM video receiver
How to upgrade the COFDM drone video encoder modulator board
"Карап чыгууда биринчи болCOFDM модулятору демодулятор модулу Кодер декодер HDMI CVBS AV киргизүү AES 256 FHD RF агымы”
Related буюмдар
Бир багыттуу бир тараптуу
Video тараткыч
COFDM телеметриялык бергич берүүчү кабылдагычы толук орнотулган зымсыз санарип аудио видео TX RX
Mesh Ad Hoc Network
сын-пикир
бирок эч кандай сын-пикирлер жок.