Рамзгузори модулятор Декодер демодулятори модули параметр Дастурҳои конфигуратсияи COFDM AT Фармон
Рамзгузори модулятор Декодер демодулятори модули параметр Дастурҳои конфигуратсияи COFDM AT Фармон
Download the Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions below if you need a PDF file.
Update Record:
| Version | таърих | Тавсифи |
| 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
-
Модули COFDM Relay Repeater барои интиқоли бесими UAV видео ва қабулкунандаи Vcan1870 -
COFDM модулятори демодулятори модули рамзгузори декодер HDMI CVBS AV вуруди AES 256 Ҷараёни FHD RF -
Интиқолдиҳанда ва қабулкунандаи видеои бесим барои камера, HDMI HD H265 264 рамзгузорро 1W / 2.5W PA 1080P60 Vcan1726 -
Модулятори рамзгузори HDMI ба IP CVBS H.265 H.264 панели рамзгузории pcba Ethernet RSTP UDP барои UAV Drone Robotic
Command Introduction
The AT command for configuring COFDM module parameters starts with “АТ” and ends with an underscore “_”. Each AT command has several or no parameters, and each AT command has a return value. Барои тафсилот, please refer to the introduction of the following commands.
Users can configure the parameters of the module through the configuration serial port (сатҳи TTL, 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 матн, барои намуна:
$ Command Classification
The AT commands for configuring COFDM module parameters are mainly divided into the following two categories:
| Query Commands | ATDR, АТГД, ATGE, ATGI , ATGR, ATGT, ATGB, ATGU, ATGIP |
| Setting Commands | АТСД, ATSG, АТМ, ATSE, ATSI, ATSO, АТР, 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 | АТСД, ATSE, ATSI, ATSO, АТР, ATSP, ATST, ATSU, ATSIP |
| Power-off Not Saving Commands | ATSG, АТМ, ATOSD |
According to the configuration transmitter or receiver, the classification is as follows:
| Sender Configuration Commands | ATDR, АТСД, АТГД, ATSG, АТМ, ATSE, ATGE, ATSI, ATGI, ATSO, ATSP, ATST, ATGT, ATSU, ATGU, ATOSD |
| Receiver Configuration Commands | ATDR, АТР, ATGR, ATSP, ATST, ATGT, ATGB, ATSIP, ATGIP |
Command Details
Ping Command
| Формат | ATDR_ |
| параметри | нест |
| истифода бурдан | for the integrated system to check whether the serial port is connected and identify the connected modules. |
| Баргардонидани арзиши | RCB returns the “device profile” string SUE1 returns “ATDRSUE1 OK” string SHD1 returns “ATDRSHD1 OK” string |
| эрод гирифтан | query command |
Set Device Command
| Формат | АТСД $(mimo), $(gi), $(Ҳисоб кардани суръати интиқоли системаи интиқоли бесими COFDM), $ (constellation), $(басомад(KHz)), $(bw(KHz)), $(tx1_gain), $(tx2_gain)_ Example: ATSD0,1,0,0,800000,8000,86.0,86.0_ |
| параметри | One Antenna/Dual antenna mimo: 0 mimo disable; 1 mimo enable Guard Interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1/4 Convolution Code Rate: 0 1/2; 1 2 /3; 2 3/4; 3 5/6; 4 7/8; созвездие: 0 QPSK; 1 QAM16; 2 QAM64; RCB Carrier Center Frequency(кГц) 200000~2700000(200MHz~2.7GHz, 1Қадами KHz) RC900 Carrier center Frequency(кГц) 750000~930000(750МГс ~ 930MHz, 1Қадами KHz) RCB Channel bandwidth bw(KHz) 2000~8000(2МГс ~ 8МГс, 1Қадами KHz) RCB Channel bandwidth bw(KHz) 2000~8000 (2МГс ~ 8МГс, 1Қадами KHz) Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB stepping Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB stepping |
| Return Value | ба мисли:ATSD0,1,0,0,800000,8000,86.0,86.0_ SISO,GI: 1/16, CR:1/2, MOD: QPSK, басомад:800000KHz,bw:8000KHz,tx1_gain:86.000000 tx2_gain:86.000000 Хуб |
| Шарҳ | Фармонро таъин кунед, ҳангоми хомӯш кардани барқ сарфа кунед. Different Bandwidths, фосилаи Гвардияи, Convolution code rates, Data rate calculation formulas corresponding to constellations Air interface rate Rate(Ҳисоб кардани суръати интиқоли системаи интиқоли бесими COFDM) Ҳисоб кардани суръати интиқоли системаи интиқоли бесими COFDM (маҷрои(МГс) * 8.0/7.0) / (1+GI) * 1512/2048*Ҳисоб кардани суръати интиқоли системаи интиқоли бесими COFDM(Ҳисоб кардани суръати интиқоли системаи интиқоли бесими COFDM) * Ҳисоб кардани суръати интиқоли системаи интиқоли бесими COFDM * 188/204. Taking 8MHz bandwidth as an example, different guard intervals, convolution code rates, data rates corresponding to constellations and required receiving signal-to-noise ratios  |
Сet Gain Command
| Формат | ATSG$( tx1_gain),$( tx1_gain)_ Example: ATSG85.0,85.0_ |
| параметри | tx1_gain: мефиристад 1 фоида tx2_gain: мефиристад 2 фоида |
| истифода бурдан | To dynamically adjust the output power. If the signal SNR/RSSI of the receiver is high, the output power can be reduced through the remote control link. When the SNR/RSSI of the end signal is low, increase the output power (мефиристад) |
| Return Value, | Example: ATSG85.0,85.0_set gain 85.000000 85.000000 Хуб |
| эрод гирифтан | setting command, power off will not save. |
Set Modulation Mode commanг
| Формат | ATSM$(gi), $(Ҳисоб кардани суръати интиқоли системаи интиқоли бесими COFDM), $(constellation)_ Example: ATSM1,1,2_ |
| параметри | Gard interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1 /4; Convolution code rate: 0 1/2; 1 2/3; 2 3/4; 3 5/6; 4 7/8; созвездие: 0 QPSK; 1 QAM16; 2 QAM64 |
| истифода бурдан | Dynamically adjust the air interface rate, the air interface rate can be increased when the distance is short, and the air interface rate can be reduced when the distance is long (мефиристад) |
| Return Value | Example:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, Хуб |
| эрод гирифтан | setting command, power off will not save. |
Get Device Status Command
| Формат | ATGD_ |
| параметри | нест |
| истифода бурдан | query the current number of transmit antennas, фосилаи посбон, convolution code rate, number of constellations, transmit frequency, маҷрои, gain parameters (мефиристад) |
| Return Value | Example: ATGD_ SISO, GI:1 /16, CR: 1/2, MOD: QPSK, басомад: 800000KHz, bw: 8000KHz, tx1_gain: 86.000000 tx2_gain: 86.000000 Хуб |
| эрод гирифтан | query command |
Set Encoder Command
| Формат | ATSE$(llc),$(rt),$(bitrate) ,$(gop),$(Садо)_ Example: ATSE0,0,0.0,0,0_ |
| параметри | 1. Enhanced data reliability option llc: 0 disable; 1 enable (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 enable |
| истифода бурдан | Used to set encoding parameters (мефиристад) |
| Return Value | Example:ATSE0, 0,0.0,0,0_ MODE:0,RT:0,bitrate: 0.0Мб,gop:0,Садо:0,Хуб |
| эрод гирифтан | setting command, save when power is off. |
Get Encoder Command
| Формат | ATGE_ |
| параметри | нест |
| истифода бурдан | querying encoding parameters (sending end) |
| Return Value | Example:ATGE_MODE:0, RT:0,bitrate:4.0Мб,gop:10,Садо:0,aes:0, Хуб |
| эрод гирифтан | Query command AES means the current encryption status: 0 disable; 1 enable |
Get Input Command
| Формат | ATGI_ |
| параметри | нест |
| истифода бурдан | query the current camera input parameters (мефиристад) |
| Return Value | Example:ATGI_input_size: 1080саҳ, input_rate: 60FPs, sensor_type: хдми,Хуб |
| эрод гирифтан | query command |
Set Input Command
| Формат | ATSI$(input_size),$(input_rate)_ Example: ATSI1080,25_ |
| параметри | 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 |
| истифода бурдан | To specify the input resolution and frame rate to meet some special signal sources, or some special application needs (мефиристад) |
| Return Value | Example: ATSI1080,25_ Input_size:1080саҳ,input_rate: 25FPs, Хуб |
| мулоҳизаҳо | 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)_ Example: ATSO720,30_ |
| параметри | 1. мефиристад: encoding output resolution output_size: 0 equal to input_size; >0 specify output size 2. қабулкунанда: HDMI output resolution (720, 1080) 3. мефиристад: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (FPs) 4. қабулкунанда: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60) |
| истифода бурдан | 1. мефиристад: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction 2. қабулкунанда: used to configure the resolution and frame rate of HDMI output |
| Return Value | Example: ATSO720,30_ output_size: 720саҳ, output_rate: 30FPs, Хуб |
| мулоҳизаҳо | 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 / вуруди CVBS)
| Формат | ATSU$(vin),$(ain)_ Example: ATSU0,1 _ |
| параметри | 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 |
| истифода бурдан | Used to meet specific application requirements (Example: HDMI/SDI input video, MIC input audio) |
| Return Value | Example: ATSU0,1_ ATSU0,1 OK |
| эрод гирифтан | setting command, power-off save. |
Get User Command
| Формат | ATGU _ Example: ATGU_ |
| параметри | нест |
| истифода бурдан | To query user-specific configuration |
| Return Value | Example: ATGU_ ATGU0,1 OK |
| эрод гирифтан | query command return parameter description please refer to the ATSU command |
Set Receiver Command
| Формат | АТР $(басомад), $(bw ), $(llc), $(cvbs)_ Example: ATSR320000,6000,0,0_ |
| параметри | 1. DR2C carrier frequency freq(KHz) 200000~860000(200МГс ~ 860MHz, 1Қадами KHz) 2. DR900 carrier center frequency freq(KHz) 200000~1600000(200MHz~1.6GHz, 1Қадами KHz) 3. DR2C channel bandwidth bw(KHz) 2000~8000(2МГс ~ 8МГс, 1Қадами KHz) 4. DR900 channel bandwidth bw(KHz) 3200~8000(3.2МГс ~ 8МГс, 1Қадами KHz) 5. Enhanced data reliability option llc: 0 disable; 1 enable (it is required that the transmitter should also enable this option at the same time, and use it in pairs. Since more redundant data is added to enhance reliability, the video bit rate of the transmitter should be set to when this option is turned off half of) 6. AV output system cvbs: 0 pal; 1 ntsc |
| истифода бурдан | To set the receiver parameter |
| Return Value | example: ATSR320000,6000,0,0_ ATSR320000,6000,0,0 OK |
| эрод гирифтан | setting command, save when power is off. |
Get Receiver Command
| Формат | ATGR_ |
| параметри | нест |
| ATGR_ | the receiving end parameter |
| Return Value | Example: ATGR_ ATGR320000,6000,0,aes:0,cvbs:0 Хуб |
| эрод гирифтан | 1. Query command 2. Aes parameter indicates the current encryption status: 0 disable;1 enable 3. CVBS parameter Indicates the current AV output standard: 0 pal;1 ntsc |
Get Bit Error Rate Command
| Формат | ATGB_ |
| параметри | нест |
| истифода бурдан | querying the bit error rate and signal strength of the dual antennas at the receiving end |
| Return Value | Example: ATGB_ ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 Хуб |
| мулоҳизаҳо | 1. Query commands 2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% ба 100.0% 3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 ба 100 4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock) |
Set Password Command
| Формат | ATSP$(парол), $(парол)_ Example: ATSP123456, 123456_ |
| параметри | Калиди пароли AES: 6-пароли рақамӣ (ASCII) Калиди пароли AES: 6-пароли рақамӣ (ASCII) (repeat it for confirmation) |
| истифода бурдан | Барои насб кардани калиди AES-и интиқолдиҳанда истифода мешавад (қабул мекунад ва мефиристад) |
| Return Value | Example: ATSP123456_ ATSP123456 Хуб |
| эрод гирифтан | 1. Вақте ки парол ҳама аст 0, AES encryption is turned off. 2. Set the command and save it after powering it off. |
Set Data Transfer Command
| Формат | ATST$(Меъёри baud), $( parity)_ Example: ATST115200,0_ |
| параметри | 1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200 2. Check Code: 0: Ҳеҷ; 1: тоқ; 2: Ҳатто |
| истифода бурдан | Used to set the baud rate and parity bit of the serial port for data transparent transmission |
| Return Value | Example: ATST115200,0_ ATST115200,0 OK |
| мулоҳизаҳо | Фармонро таъин кунед |
Get Data Transfer Command
| Формат | ATGT_ |
| параметри | нест |
| истифода бурдан | Used to query the baud rate and check code |
| Return Value | Example: ATGT_ ATGT115200,0 OK |
| мулоҳизаҳо | Query command |
Set IP Address Command
| Формат | ATSIP$(ip), $(ip)_ Example: ATSIP192.168.1.215,192.168.1.215_ |
| Параметрҳо | Local IP address Local IP address (барои тасдиқ такрор кунед) |
| истифода бурдан | Used to set the receiver IP address |
| Return Value | Example: ATSIP_192.168.1 .215,192.168.1.215_ ATSIP192.168.1.215 OK |
| мулоҳизаҳо | 1. After setting the IP address, the receiving end needs to be restarted to take effect. 2. Set the command and save it after powering it off. |
Get IP Address Command
| Формат | ATGIP_ Example: ATGIP_ |
| параметри | нест |
| истифода бурдан | to query the current IP address of the receiving end |
| Баргардонидани арзиши | Example: ATGIP_ ATGIP192.168.0.215 OK |
| эрод гирифтан | query command |
OSD Overlay Protocol
| Формат | ATOSD$(idx), $(х), $(y), $(str)_ Example:ATOSD0,40,20,height: 100m_ |
| параметри | 1. IDX index: 0~7 (supports OSD overlay for 8 areas) 2. X-coordinate: 0~1919 3. Y coordinate: 0~1079 4. str: the string to be displayed at the corresponding coordinates (the space symbol is used to clear the display) |
| истифода бурдан | on the video screen.OSD information |
| Баргардонидани арзиши | нест |
| мулоҳизаҳо | 1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 пиксел, and the system will correct the coordinates according to the actual display situation. 2. The ‘_’ character cannot be contained in the str parameter |
Set Gain To Adjust
| Формат | ATSAD$(басомад),$(adjust) _ Example:ATSAD700000,2.5_ |
| параметри | wireless central working frequency： Freq(KHz) 200000~2700000(200MHz~2.7GHz, step: 1KHz) Adjust the value(DB): ATSD cmd will subtract this value to set the wireless gain |
| функсия | Specify and adjust the value for the wireless gain setting using by ATSD cmd |
| Алоқа | Example: ATSAD700000,2.5_ freq:700000,adjust:2.50 Хуб |
| Шарҳҳо | Setting command is still valid when stopping power or resetting. |
Get Gain To Adjust
| Формат | ATGAD[$(басомад)]_ Example:ATGAD700000_ |
| параметри | 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. |
| функсия | Inquiry adjust the value for wireless gain setting using ATSD cmd |
| Алоқа | Example: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 Хуб |
| Шарҳҳо | Inquiry command. |
Serial Port Utility software download
HTTPS://www.alithon.com/downloads
Саволҳои зиёд такрормешуда
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 ба 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 (афзоиш) 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 (Мб). When I set E, the new value does not apply. So. the E setting is only for monitoring of available bitrate? if I wish to change the E (Битрейт) I have to change only B (маҷрои)? 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.
Бо нобаёнӣ, 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 модулятори демодулятори модули рамзгузори декодер HDMI CVBS AV вуруди AES 256 Ҷараёни FHD RF
COFDM модулятори демодулятори модули рамзгузори декодер HDMI CVBS AV вуруди AES 256 Ҷараёни FHD RF
Мундариҷа
Another side view
COFDM Encoder module, CVBS / вуруди HDMI, IP output
For More details about the COFDM encoder board, please visit here
COFDM Encoder module Advantage:
- Рамзгузории аудио ва видеои H.265/H.264, ки таъхири ултра паст дорад, ҳадди аксар дастгирии 1080P@60 сабт ва рамзгузории видео дар вақти воқеӣ
- Вуруди аудио ва видеои HDMI ё AV, пас аз рамзгузорӣ, баромади порти Ethernet ё баромад ба модули бесим, Меъёри рамзгузории видео метавонад ба таври динамикӣ танзим карда шавад
- Дастгирии вуруди аудио ва баромади рамзкушоӣ аудио
- Ду видеоро дастгирӣ кунед (HDMI + AV) рамзгузории вуруди ҳамзамон (интихоб, пешфарз рамзгузории HDMI ё AV аст, яке аз ду манбаи вурудро интихоб кунед). )
- Web UI ё фармони порти силсилавии UART AT for configuration management
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: 4.1.2саҳ
Саволҳо
- Question1: Could you please tell me part number of this component, we try to find localy and check. ҷавоб 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.
Албатта
Лутфан истиноди зеринро санҷед.
Рамзгузори модулятор Декодер демодулятори модули параметр Дастурҳои конфигуратсияи COFDM AT Фармон
3. савол, If our camera quality is good enough for both 4 MHz and 8 маҷрои MHz. Дар ин маврид, Should the customer choose 4 МГс ва ё 8 МГс?
ҷавоб: 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. савол: Which is better for this tx+rx set from a receive sensitivity view?
ҷавоб: 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, 4МГс>6МГс>8МГс
Албатта
Лутфан истиноди зеринро санҷед
Модули COFDM Relay Repeater барои интиқоли бесими UAV видео ва қабулкунандаи Vcan1870
Single channel receiving sensitivity:
-97+/-1dbm at QPSK 8MHz,
-98+/-1dbm 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）
Please download at the below link.
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
Албатта, лутфан тасвири зеринро санҷед.
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
Аваллин шарҳ диҳед “COFDM модулятори демодулятори модули рамзгузори декодер HDMI CVBS AV вуруди AES 256 Ҷараёни FHD RF”
маҳсулоти мавзӯъ
Бознигариҳои
Ҳоло баррасиҳо мавҷуд нестанд.