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:
| верзија | датум | Опис |
| 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
-
ЦОФДМ Релаи Репеатер модул за беспилотне беспилотне летелице бежични видео предајник и пријемник Вцан1870 -
ЦОФДМ модулатор демодулатор модул енкодер декодер ХДМИ ЦВБС АВ улаз АЕС 256 ФХД РФ стриминг -
Бежични видео предајник и пријемник за камеру, ХДМИ ХД Х265 264 енкодер 1В/2.5В ПА 1080П60 Вцан1726 -
ХДМИ на ИП енкодер модулатор ЦВБС Х.265 Х.264 плоча за кодирање пцба Етхернет РСТП УДП за УАВ Дроне Роботиц
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 (ТТЛ ниво, 3.3в) 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, на пример:
, Цommand 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_ |
| параметар | Не |
| употреба | for the integrated system to check whether the serial port is connected and identify the connected modules. |
| Return value | RCB returns the “device profile” string SUE1 returns “ATDRSUE1 OK” string SHD1 returns “ATDRSHD1 OK” string |
| примедба | query command |
Set Device Command
| формат | ATSD $(mimo), $(gi), $(Прорачун брзине преноса ЦОФДМ система бежичног преноса), $ (constellation), $(фрек(кХз)), $(bw(кХз)), $(tx1_gain), $(tx2_gain)_ Example: ATSD0,1,0,0,800000,8000,86.0,86.0_ |
| параметар | One Antenna/Dual antenna mimo: 0 mimo disable; 1 mimo enable Guard Interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1/4 Convolution Code Rate: 0 1/2; 1 2 /3; 2 3/4; 3 5/6; 4 7/8; констелација: 0 КПСК; 1 КАМ16; 2 КАМ64; RCB Carrier Center Frequency(kHz) 200000~2700000(200MHz~2.7GHz, 1КХз корак) RC900 Carrier center Frequency(kHz) 750000~930000(750МХз ~ 930МХз, 1КХз корак) RCB Channel bandwidth bw(кХз) 2000~8000(2МХз~8МХз, 1КХз корак) RCB Channel bandwidth bw(кХз) 2000~8000 (2МХз~8МХз, 1КХз корак) Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB stepping Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB stepping |
| Return Value | као такав:ATSD0,1,0,0,800000,8000,86.0,86.0_ SISO,војник: 1/16, ХР:1/2, MOD: КПСК, фрек:800000кХз,bw:8000кХз,tx1_gain:86.000000 tx2_gain:86.000000 ок |
| Белешка | Set command, save when power off. Different Bandwidths, гуард интервал, Convolution code rates, Data rate calculation formulas corresponding to constellations Air interface rate Rate(Прорачун брзине преноса ЦОФДМ система бежичног преноса) Прорачун брзине преноса ЦОФДМ система бежичног преноса (Проток(МХз) * 8.0/7.0) / (1+војник) * 1512/2048*Прорачун брзине преноса ЦОФДМ система бежичног преноса(Прорачун брзине преноса ЦОФДМ система бежичног преноса) * Прорачун брзине преноса ЦОФДМ система бежичног преноса * 188/204. Taking 8MHz bandwidth as an example, different guard intervals, convolution code rates, data rates corresponding to constellations and required receiving signal-to-noise ratios  |
Нet Gain Command
| формат | ATSG$( tx1_gain),$( tx1_gain)_ Example: ATSG85.0,85.0_ |
| параметар | tx1_gain: Предајник 1 dobitak tx2_gain: Предајник 2 dobitak |
| употреба | To dynamically adjust the output power. If the signal SNR/RSSI of the receiver is high, the output power can be reduced through the remote control link. When the SNR/RSSI of the end signal is low, increase the output power (предајник) |
| Return Value, | Example: ATSG85.0,85.0_set gain 85.000000 85.000000 ок |
| примедба | setting command, power off will not save. |
Set Modulation Mode commanд
| формат | ATSM$(gi), $(Прорачун брзине преноса ЦОФДМ система бежичног преноса), $(constellation)_ Example: ATSM1,1,2_ |
| параметар | Gard interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1 /4; Convolution code rate: 0 1/2; 1 2/3; 2 3/4; 3 5/6; 4 7/8; констелација: 0 КПСК; 1 КАМ16; 2 КАМ64 |
| употреба | Dynamically adjust the air interface rate, the air interface rate can be increased when the distance is short, and the air interface rate can be reduced when the distance is long (предајник) |
| Return Value | Example:ATSM1,1,2_GI:1/16, ХР:2/3, MOD: КАМ64, ок |
| примедба | setting command, power off will not save. |
Гet Device Status Command
| формат | ATGD_ |
| параметар | Не |
| употреба | query the current number of transmit antennas, Гуард interval, convolution code rate, number of constellations, transmit frequency, проток, gain parameters (предајник) |
| Return Value | Example: ATGD_ SISO, војник:1 /16, ХР: 1/2, MOD: КПСК, фрек: 800000кХз, bw: 8000кХз, tx1_gain: 86.000000 tx2_gain: 86.000000 ок |
| примедба | query command |
Set Encoder Command
| формат | ATSE$(llc),$(rt),$(bitrate) ,$(gop),$(звучни)_ Example: ATSE0,0,0.0,0,0_ |
| параметар | 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. битрате: 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 |
| употреба | Used to set encoding parameters (Предајник) |
| Return Value | Example:ATSE0, 0,0.0,0,0_ РЕЖИМ:0,RT:0,bitrate: 0.0мбпс,gop:0,звучни:0,ок |
| примедба | setting command, save when power is off. |
Get Encoder Command
| формат | ATGE_ |
| параметар | Не |
| употреба | querying encoding parameters (sending end) |
| Return Value | Example:ATGE_MODE:0, RT:0,bitrate:4.0мбпс,gop:10,звучни:0,aes:0, ок |
| примедба | Query command AES means the current encryption status: 0 disable; 1 enable |
Get Input Command
| формат | ATGI_ |
| параметар | Не |
| употреба | query the current camera input parameters (предајник) |
| Return Value | Example:ATGI_input_size: 1080стр, input_rate: 60Скините, sensor_type: хдми,ок |
| примедба | query command |
Set Input Command
| формат | ATSI$(input_size),$(input_rate)_ Example: ATSI1080,25_ |
| параметар | 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 |
| употреба | To specify the input resolution and frame rate to meet some special signal sources, or some special application needs (предајник) |
| Return Value | Example: ATSI1080,25_ Input_size:1080стр,input_rate: 25Скините, ок |
| Напомене | 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_ |
| параметар | 1. Предајник: encoding output resolution output_size: 0 equal to input_size; >0 specify output size 2. пријемник: HDMI output resolution (720, 1080) 3. Предајник: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (Скините) 4. пријемник: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60) |
| употреба | 1. Предајник: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction 2. пријемник: used to configure the resolution and frame rate of HDMI output |
| Return Value | Example: ATSO720,30_ output_size: 720стр, output_rate: 30Скините, ок |
| Напомене | 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 / ЦВБС улаз улаз)
| формат | ATSU$(vin),$(ain)_ Example: ATSU0,1 _ |
| параметар | 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 |
| употреба | Used to meet specific application requirements (Example: HDMI/SDI input video, MIC input audio) |
| Return Value | Example: ATSU0,1_ ATSU0,1 OK |
| примедба | setting command, power-off save. |
Get User Command
| формат | ATGU _ Example: ATGU_ |
| параметар | Не |
| употреба | To query user-specific configuration |
| Return Value | Example: ATGU_ ATGU0,1 OK |
| примедба | query command return parameter description please refer to the ATSU command |
Set Receiver Command
| формат | ATSR $(фрек), $(bw ), $(llc), $(cvbs)_ Example: ATSR320000,6000,0,0_ |
| параметар | 1. DR2C carrier frequency freq(кХз) 200000~860000(200МХз ~ 860МХз, 1КХз корак) 2. DR900 carrier center frequency freq(кХз) 200000~1600000(200MHz~1.6GHz, 1КХз корак) 3. DR2C channel bandwidth bw(кХз) 2000~8000(2МХз~8МХз, 1КХз корак) 4. DR900 channel bandwidth bw(кХз) 3200~8000(3.2МХз~8МХз, 1КХз корак) 5. Enhanced data reliability option llc: 0 disable; 1 enable (it is required that the transmitter should also enable this option at the same time, and use it in pairs. Since more redundant data is added to enhance reliability, the video bit rate of the transmitter should be set to when this option is turned off half of) 6. AV output system cvbs: 0 pal; 1 ntsc |
| употреба | To set the receiver parameter |
| Return Value | example: ATSR320000,6000,0,0_ ATSR320000,6000,0,0 OK |
| примедба | setting command, save when power is off. |
Get Receiver Command
| формат | ATGR_ |
| параметар | Не |
| ATGR_ | the receiving end parameter |
| Return Value | Example: ATGR_ ATGR320000,6000,0,aes:0,cvbs:0 ок |
| примедба | 1. Query command 2. Aes parameter indicates the current encryption status: 0 disable;1 enable 3. CVBS parameter Indicates the current AV output standard: 0 pal;1 ntsc |
Get Bit Error Rate Command
| формат | ATGB_ |
| параметар | Не |
| употреба | querying the bit error rate and signal strength of the dual antennas at the receiving end |
| Return Value | Example: ATGB_ ATGB ber1:0.00% бер2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 ок |
| Напомене | 1. Query commands 2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% до 100.0% 3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 до 100 4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock) |
Set Password Command
| формат | ATSP$(Лозинка), $(Лозинка)_ Example: ATSP123456, 123456_ |
| параметар | AES key password: 6-digit password (ASCII) AES key password: 6-digit password (ASCII) (repeat it for confirmation) |
| употреба | Used to set the AES key of the transceiver (предајник и пријемник) |
| Return Value | Example: ATSP123456_ ATSP123456 OK |
| примедба | 1. When the password is all 0, AES encryption is turned off. 2. Set the command and save it after powering it off. |
Set Data Transfer Command
| формат | ATST$(број бауда), $( parity)_ Example: ATST115200,0_ |
| параметар | 1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200 2. Check Code: 0: Ниједан; 1: Odd; 2: Чак |
| употреба | Used to set the baud rate and parity bit of the serial port for data transparent transmission |
| Return Value | Example: ATST115200,0_ ATST115200,0 OK |
| Напомене | Set command |
Get Data Transfer Command
| формат | ATGT_ |
| параметар | Не |
| употреба | Used to query the baud rate and check code |
| Return Value | Example: ATGT_ ATGT115200,0 OK |
| Напомене | Query command |
Set IP Address Command
| формат | ATSIP$(ip), $(ip)_ Example: ATSIP192.168.1.215,192.168.1.215_ |
| Параметерс | Local IP address Local IP address (repeat to confirm) |
| употреба | Used to set the receiver IP address |
| Return Value | Example: ATSIP_192.168.1 .215,192.168.1.215_ ATSIP192.168.1.215 OK |
| Напомене | 1. After setting the IP address, the receiving end needs to be restarted to take effect. 2. Set the command and save it after powering it off. |
Get IP Address Command
| формат | ATGIP_ Example: ATGIP_ |
| параметар | Не |
| употреба | to query the current IP address of the receiving end |
| Return value | Example: ATGIP_ ATGIP192.168.0.215 OK |
| примедба | query command |
OSD Overlay Protocol
| формат | ATOSD$(idx), $(Икс), $(и), $(str)_ Example:ATOSD0,40,20,height: 100m_ |
| параметар | 1. IDX index: 0~7 (supports OSD overlay for 8 areas) 2. X-coordinate: 0~1919 3. Y coordinate: 0~1079 4. str: the string to be displayed at the corresponding coordinates (the space symbol is used to clear the display) |
| употреба | on the video screen.OSD information |
| Return value | Не |
| Напомене | 1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 пиксела, and the system will correct the coordinates according to the actual display situation. 2. The ‘_’ character cannot be contained in the str parameter |
Set Gain To Adjust
| формат | ATSAD$(фрек),$(adjust) _ Example:ATSAD700000,2.5_ |
| параметар | wireless central working frequency： Freq(кХз) 200000~2700000(200MHz~2.7GHz, step: 1кХз) Adjust the value(дБ): ATSD cmd will subtract this value to set the wireless gain |
| функција | Specify and adjust the value for the wireless gain setting using by ATSD cmd |
| Повратна информација | Example: ATSAD700000,2.5_ freq:700000,adjust:2.50 ок |
| Коментари | Setting command is still valid when stopping power or resetting. |
Get Gain To Adjust
| формат | ATGAD[$(фрек)]_ Example:ATGAD700000_ |
| параметар | wireless central working frequency： Freq(кХз) 200000~2700000(200MHz~2.7GHz, step: 1кХз) When no parameter provides, it will list all the freq that have adjusted value. |
| функција | Inquiry adjust the value for wireless gain setting using ATSD cmd |
| Повратна информација | Example: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 ок |
| Коментари | Inquiry command. |
Serial Port Utility software download
хттп://www.alithon.com/downloads
Често
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 тхе 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 (добит) 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 (kHz) and E bit rate (мбпс). When I set E, the new value does not apply. Тако. the E setting is only for monitoring of available bitrate? if I wish to change the E (битрате) I have to change only B (проток)? 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.
ЦОФДМ модулатор демодулатор модул енкодер декодер ХДМИ ЦВБС АВ улаз АЕС 256 ФХД РФ стриминг
ЦОФДМ модулатор демодулатор модул енкодер декодер ХДМИ ЦВБС АВ улаз АЕС 256 ФХД РФ стриминг
Преглед садржаја
Another side view
COFDM Encoder module, ЦВБС / ХДМИ улаз, IP output
For More details about the COFDM encoder board, please visit here
COFDM Encoder module Advantage:
- Ултра-ниско кашњење Х.265/Х.264 аудио и видео кодирање максимална подршка 1080П@60 видео снимање и кодирање у реалном времену
- ХДМИ или АВ аудио и видео улаз, након кодирања, излаз Етхернет порта или излаз на бежични модул, Брзина бита кодирања видеа може се динамички конфигурисати
- Суппорт аудио улаз и аудио излаз декодирања
- Подржава два видео записа (ХДМИ + АВ) кодирање истовременог уноса (опција, подразумевано је ХДМИ или АВ кодирање, изаберите један од два извора улаза). )
- Веб УИ или serial port UART AT command for configuration management
COFDM transmitter module
COFDM modulator-demodulator datasheet download
COFDM demodulator Vcan1776RX-H264 datasheet
The last version of the TX RX board
ТКС: V6.5.6p
РКС: 4.1.2стр
ФАКс
- Question1: Could you please tell me part number of this component, we try to find localy and check. Одговор 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.
Наравно
Молимо проверите везу испод.
Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM AT Command
3. питање, If our camera quality is good enough for both 4 МХз и 8 МХз проток. У овом случају, Should the customer choose 4 МХз ор 8 МХз?
Одговор: 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. питање: Which is better for this tx+rx set from a receive sensitivity view?
Одговор: 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, 4МХз>6МХз>8МХз
Наравно
Молимо проверите везу испод
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）
Молимо преузмите на линку испод.
Сплаиер_в4.2_2020.6.6
https://drive.google.com/file/d/1ihzUhfnx2Wo3zLO8UAs1aUQeLswonJD-/view?usp=sharing
Сплаиер_в4.3_2022.10.22
https://drive.google.com/file/d/1PQc-LZ55qGnjeMsjkHYSloHfY3NEUsGH/view?usp=drive_link
Наравно, молимо вас погледајте следећу слику.
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
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сродни производи
Једносмерни једносмерни
Мини Сизе ХДМИ Енцодер Боард Овер ИП Етхернет РЈ45 Излазни модулатор Х.265 ХТТП РСТП УДП ОНВИФ ТЦП
видео предајник
Коментара
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