Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM AT Command

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Update Record:

нұсқа	дата	сипаттамасы
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

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 деңгейі, 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 мәтін, Мысалға:

Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM AT Command 1 — Encoder Modulator Decoder Demodulator Module

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_
параметр	жоқ
пайдалану	for the integrated system to check whether the serial port is connected and identify the connected modules.
Қайтарылатын мән	RCB returns the “device profile” string SUE1 returns “ATDRSUE1 OK” string SHD1 returns “ATDRSHD1 OK” string
Ескерту	сұрау командасы

Set Device Command

C:\Users\timyep\AppData\Roaming\Tencent\Users\157871537\QQ\WinTemp\RichOle\E0XEBCD_M4WD[M1BWR$}TK4.png

Set Gain Command

формат	ATSG$( tx1_gain),$( tx1_gain)_ Мысал: ATSG85.0,85.0_
параметр	tx1_gain: таратқыш 1 пайда tx2_gain: таратқыш 2 пайда
пайдалану	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 (таратқыш)
Return Value,	Мысал: ATSG85.0,85.0_set gain 85.000000 85.000000 ЖАРАЙДЫ МА
Ескерту	setting command, power off will not save.

Set Modulation Mode commanг

формат	ATSM$(gi), $(COFDM сымсыз тарату жүйесінің тарату жылдамдығын есептеу), $(constellation)_ Мысал: ATSM1,1,2_
параметр	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; Constellation: 0 QPSK; 1 QAM16; 2 QAM64
пайдалану	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 (таратқыш)
Return Value	Мысал:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, ЖАРАЙДЫ МА
Ескерту	setting command, power off will not save.

Get Device Status Command

формат	ATGD_
параметр	жоқ
пайдалану	query the current number of transmit antennas, күзетші аралығы, convolution code rate, number of constellations, transmit frequency, өткізу қабілеті, gain parameters (таратқыш)
Return Value	Мысал: ATGD_ SISO, GI:1 /16, CR: 1/2, MOD: QPSK, жиілігі: 800000кГц, bw: 8000кГц, tx1_gain: 86.000000 tx2_gain: 86.000000 ЖАРАЙДЫ МА
Ескерту	сұрау командасы

Set Encoder Command

формат	ATSE$(llc),$(rt),$(bitrate) ,$(gop),$(аудио)_ Мысал: ATSE0,0,0.0,0,0_
параметр	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
пайдалану	Used to set encoding parameters (таратқыш)
Return Value	Мысал:ATSE0, 0,0.0,0,0_ MODE:0,RT:0,bitrate: 0.0Mbps,gop:0,аудио:0,ЖАРАЙДЫ МА
Ескерту	setting command, save when power is off.

Get Encoder Command

формат	ATGE_
параметр	жоқ
пайдалану	querying encoding parameters (sending end)
Return Value	Мысал:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,аудио:0,aes:0, ЖАРАЙДЫ МА
Ескерту	Query command AES means the current encryption status: 0 disable; 1 enable

Get Input Command

формат	ATGI_
параметр	жоқ
пайдалану	query the current camera input parameters (таратқыш)
Return Value	Мысал:ATGI_input_size: 1080P, input_rate: 60FPS, sensor_type: hdmi,ЖАРАЙДЫ МА
Ескерту	сұрау командасы

Set Input Command

формат	ATSI$(input_size),$(input_rate)_ Мысал: ATSI1080,25_
параметр	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
пайдалану	To specify the input resolution and frame rate to meet some special signal sources, or some special application needs (таратқыш)
Return Value	Мысал: ATSI1080,25_ Input_size:1080P,input_rate: 25FPS, ЖАРАЙДЫ МА
Ескертпелер	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)_ Мысал: ATSO720,30_
параметр	1. таратқыш: encoding output resolution output_size: 0 equal to input_size; >0 specify output size 2. қабылдағыш: HDMI output resolution (720, 1080) 3. таратқыш: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (FPS) 4. қабылдағыш: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60)
пайдалану	1. таратқыш: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction 2. қабылдағыш: used to configure the resolution and frame rate of HDMI output
Return Value	Мысал: ATSO720,30_ output_size: 720P, output_rate: 30FPS, ЖАРАЙДЫ МА
Ескертпелер	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 кіру)

формат	ATSU$(vin),$(Айн)_ Мысал: ATSU0,1 _
параметр	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
пайдалану	Used to meet specific application requirements (Мысал: HDMI/SDI input video, MIC input audio)
Return Value	Мысал: ATSU0,1_ ATSU0,1 OK
Ескерту	setting command, power-off save.

Get User Command

формат	ATGU _ Мысал: ATGU_
параметр	жоқ
пайдалану	To query user-specific configuration
Return Value	Мысал: ATGU_ ATGU0,1 OK
Ескерту	сұрау командасы return parameter description please refer to the ATSU command

Set Receiver Command

формат	ATSR $(жиілігі), $(bw ), $(llc), $(cvbs)_ Мысал: ATSR320000,6000,0,0_
параметр	1. DR2C carrier frequency freq(кГц) 200000~860000(200МГц ~ 860MHz, 1КГц қадамы) 2. DR900 carrier center frequency freq(кГц) 200000~1600000(200MHz~1.6GHz, 1КГц қадамы) 3. DR2C channel bandwidth bw(кГц) 2000~8000(2МГц~8МГц, 1КГц қадамы) 4. DR900 channel bandwidth bw(кГц) 3200~8000(3.2МГц~8МГц, 1КГц қадамы) 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
пайдалану	To set the receiver parameter
Return Value	example: ATSR320000,6000,0,0_ ATSR320000,6000,0,0 OK
Ескерту	setting command, save when power is off.

Get Receiver Command

формат	ATGR_
параметр	жоқ
ATGR_	the receiving end parameter
Return Value	Мысал: ATGR_ ATGR320000,6000,0,aes:0,cvbs:0 ЖАРАЙДЫ МА
Ескерту	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_
параметр	жоқ
пайдалану	querying the bit error rate and signal strength of the dual antennas at the receiving end
Return Value	Мысал: ATGB_ ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 ЖАРАЙДЫ МА
Ескертпелер	1. Query commands 2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, Бастап 0.0% қарай 100.0% 3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, Бастап 0 қарай 100 4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock)

Set Password Command

формат	ATSP$(password), $(password)_ Мысал: ATSP123456, 123456_
параметр	AES key password: 6-digit password (ASCII) AES key password: 6-digit password (ASCII) (repeat it for confirmation)
пайдалану	Used to set the AES key of the transceiver (таратқыш және қабылдағыш)
Return Value	Мысал: ATSP123456_ ATSP123456 OK
Ескерту	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$(беру жылдамдығы), $( parity)_ Мысал: ATST115200,0_
параметр	1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200 2. Check Code: 0: Ешбір; 1: Odd; 2: Even
пайдалану	Used to set the baud rate and parity bit of the serial port for data transparent transmission
Return Value	Мысал: ATST115200,0_ ATST115200,0 OK
Ескертпелер	Set command

Get Data Transfer Command

формат	ATGT_
параметр	жоқ
пайдалану	Used to query the baud rate and check code
Return Value	Мысал: ATGT_ ATGT115200,0 OK
Ескертпелер	Query command

Set IP Address Command

формат	ATSIP$(ip), $(ip)_ Мысал: ATSIP192.168.1.215,192.168.1.215_
Параметрлер	Local IP address Local IP address (repeat to confirm)
пайдалану	Used to set the receiver IP address
Return Value	Мысал: ATSIP_192.168.1 .215,192.168.1.215_ ATSIP192.168.1.215 OK
Ескертпелер	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_ Мысал: ATGIP_
параметр	жоқ
пайдалану	қабылдаушы жақтың ағымдағы IP мекенжайын сұрау үшін
Қайтарылатын мән	Мысал: ATGIP_ ATGIP192.168.0.215 Жарайды
Ескерту	сұрау командасы

OSD Overlay Protocol

формат	ATOSD$(idx), $(X), $(y), $(str)_ Мысал:ATOSD0,40,20,height: 100m_
параметр	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)
пайдалану	on the video screen.OSD information
Қайтарылатын мән	жоқ
Ескертпелер	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$(жиілігі),$(adjust) _ Мысал:ATSAD700000,2.5_
параметр	wireless central working frequency： Жиілігі(кГц) 200000~2700000(200MHz~2.7GHz, step: 1кГц) Adjust the value(дБ): ATSD cmd will subtract this value to set the wireless gain
функция	Specify and adjust the value for the wireless gain setting using by ATSD cmd
Кері байланыс	Мысал: ATSAD700000,2.5_ freq:700000,adjust:2.50 ЖАРАЙДЫ МА
Пікірлер	Setting command is still valid when stopping power or resetting.

Get Gain To Adjust

формат	ATGAD[$(жиілігі)]_ Мысал:ATGAD700000_
параметр	wireless central working frequency： Жиілігі(кГц) 200000~2700000(200MHz~2.7GHz, step: 1кГц) When no parameter provides, it will list all the freq that have adjusted value.
функция	Inquiry adjust the value for wireless gain setting using ATSD cmd
Кері байланыс	Мысал: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 ЖАРАЙДЫ МА
Пікірлер	Inquiry command.

Serial Port Utility software download

HTTPS://www.alithon.com/downloads

Жиі қойылатын сұрақтар

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 The 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 (пайда) 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 (Mbps). When I set E, the new value does not apply. Сонымен. the E setting is only for monitoring of available bitrate? if I wish to change the E (Битрейт) I have to change only B (өткізу қабілеті)? 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.
Әдепкі бойынша, 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.

фильтр

COFDM Modulator-Demodulator Module 2X video Encoder-Decoder Board hdmi cvbs low latency

Modulator Demodulator Module Encoder Decoder HDMI CVBS AV Input AES 256 FHD RF streaming COFDM

drone uav low latency COFDM Modulator-Demodulator Module Encoder-Decoder Board hdmi cvbs

COFDM модуляторы демодулятор модулі Кодер декодер HDMI CVBS AV кірісі AES 256 FHD RF ағыны

Q: 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 the ATSP _command

Q: 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 (Gain) 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.

Q: 3. I tried to set - B bandwidth (kHz) and E bit rate (Mbps). 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 (Bitrate) I have to change only B (bandwidth)? 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.

SKU: Vcan1776 Санаттар: COFDM, TX RX модулі, Бір бағытты бір жақты Tags: COFDM, cofdm demodulator, Бір жол

COFDM модуляторы демодулятор модулі Кодер декодер HDMI CVBS AV кірісі AES 256 FHD RF ағыны

Мазмұны

Another side view

Modulator Demodulator Module Encoder Decoder HDMI CVBS AV Input AES 256 FHD RF streaming parameter configuration board — COFDM Modulator Demodulator HDMI CVBS Module Encoder Decoder HDMI CVBS AV Input AES 256 FHD RF streaming parameter configuration board

COFDM Encoder module, CVBS / HDMI кіріс, IP output

Composite CVBS input IP RJ45 Ethernet output Ultra-low latency encoder board, HDMI CVBS Encoder — Композиттік CVBS кіріс IP RJ45 Ethernet шығысы Ультра төмен кідіріс кодер тақтасы, HDMI CVBS кодтары

For More details about the COFDM encoder board, please visit here

COFDM Encoder module Advantage:

Өте төмен кідіріс H.265/H.264 аудио және бейне кодтауы 1080P@60 нақты уақыттағы бейне түсіру және кодтауды барынша қолдайды
HDMI немесе AV аудио және бейне кірісі, кодтаудан кейін, Ethernet портының шығысы немесе сымсыз модульге шығыс, бейне кодтау бит жылдамдығын динамикалық түрде конфигурациялауға болады
аудио кірісін және аудио декодтау шығысын қолдау
Екі бейнені қолдау (HDMI + AV) бір мезгілде енгізуді кодтау (таңдау, әдепкі - HDMI немесе AV кодтауы, екі кіріс көзінен біреуін таңдаңыз). )
Web UI немесе сериялық порт UART AT командасы for configuration management

HDMI CVBS composite SDI video input encoder board digital IP ethernet output H264 H265 module board — HDMI CVBS композиттік SDI бейне кіріс кодер тақтасы сандық IP Ethernet шығысы H264 H265 модуль тақтасы

COFDM transmitter module

COFDM Wireless video transmitter module RCB board

Change RF connector from IPEX to MMCX for COFDM wireless video transmitter encoder modulator board

COFDM modulator-demodulator datasheet download

COFDM demodulator Vcan1776RX-H264 datasheet

The last version of the TX RX board

TX: V6.5.6p

RX: 4.1.2P

Жиі қойылатын сұрақтар

1. What should I do when I found one Tx module doesn't generate RF output power?

Question1: Could you please tell me part number of this component, we try to find localy and check. жауап 1: It is a inductance named LOH32PN2R2NNC.

COFDM-Transmitter-Module-no-tx output power

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.

2. Can you offer me the UART AT command file for this model?

Әрине

Төмендегі сілтемені тексеріңіз.

Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM AT Command

3. How does this COFDM Video transmitter and receiver support an IP camera?

1. It is not easy to connect to IPC for a one-way COFDM link. We have an H264 model, which is connected to IPC input by expanding the network port, but there are requirements for IPC models (not all models of IPC can be well connected with COFDM links), we have tested the IPCs of Hikvision, Dahua, and Xiongmai, and found that the connection effect of Hikvision is quite ideal.

2. It is impossible to directly remove the HDMI CVBS encoder and connect the IP Camera to the COFDM Transmitter board. One-way COFDM connection to IPC requires special technical methods to realize.

3. The best way is to recommend using our two-way image transmission transceiver, which directly supports the IP camera.

4. If the customer must use the COFDM transmitter board to support the IP camera, there are two points to pay attention to.

5. The first point is a technical problem. We need to use an alternative method to allow unidirectional COFDM links to be used with IPC.

6.If you consider IPC from the perspective of cost reduction, you don't need to consider it. Because the encoding board and decoding board are still necessary, the cost cannot be saved.

7. The second point is the customer's usage habit, which is no longer the traditional two-way link method. They can view the IP Camera Video and even control the PTZ of the IP Camera via the web page or PC-side PC software (UART AT commands).

8. Because of this model wireless link is a COFDM one-way link; there is no reverse data (only one-way transmission; data cannot be transmitted from the receiver to the transmitter); the customer can only watch the video of the IP Camera and cannot reversely configure the IP Camera's parameters or control the PTZ of the IPCamera.

9. This is a problem that many customers overlooked at first and later complained about after using it.

10. So we don't recommend that the client choose a one-way COFDM transmitter and receiver for the IP camera. We have a better solution for the IP Camera via two video link transceivers.

4. Could you please give me the Required C/N (BER=2x10-4 after Viterbi) for different the bandwidths 2, 4, 6, және 8 Mhz of HDMI video link we use?

1. Қазіргі кезде, the receiver only provides two parameters of signal strength and bit error rate, and there is no C/N parameter

2. What parameters do you need to adjust according to different bandwidths? If it is a video code stream, the transmitter encoding board itself will automatically calculate the appropriate video stream code rate according to the currently used wireless parameters (өткізу қабілеті, GI, CR, және т.б.), and the video code rate will be found after changing the bandwidth with the parameter board will automatically adapt.

cofdm video transmitter parameter configuare tool

3. сұрақ, If our camera quality is good enough for both 4 МГц және 8 МГц өткізу қабілеті. Бұл жағдайда, Should the customer choose 4 МГц немесе 8 МГц?

жауап: 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. сұрақ: Which is better for this tx+rx set from a receive sensitivity view?

жауап: 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, 4МГц>6МГц>8МГц

5. What HDMI version is standard in Modulator input?

HDMI 1.4

6. Do you have any COFDM Relay Repeater Modules for the Wireless Video Transmitter and Receiver？

Әрине

Төмендегі сілтемені тексеріңіз

Dron UAV сымсыз бейне таратқышы мен Vcan1870 қабылдағышына арналған COFDM релелік қайталағыш модулі

COFDM Relay repeater for wireless video transmitter and receiver — Сымсыз бейне таратқыш пен қабылдағышқа арналған COFDM релелік қайталағыш

7. Could send me a data measurement of sensitivity for 4/6/8 MHz cases? Мысалға, for QPSK, 1/2CR, 1/32GI what threshold reception RX's input level (дБм)?

Single channel receiving sensitivity:

-97+/-1дБм at QPSK 8MHz,

-98+/-1дБм at QPSK 6MHZ,
Sensitivity increased by 3dbm when receiving with dual antennas

8. Does this module support over 1.4G? for example 2.4G, 3G, or 3.6G？

иә, қолдау.

COFDM Video encoder modulator transmitter module 3.5G and 4G test result.

9. UDP ойнатқышын қайдан жүктеп алуға болады? Біз жиі қолданатын Splayer_v4.2_2020.6.6 нұсқасын ұсынамыз.

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）

Төмендегі сілтеме бойынша жүктеп 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

UDP Player: Splayer setting for living stream

10. Can you offer a metal box to protect the COFDM receiver board?

Әрине, төмендегі суретті қараңыз.