Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM NTAWM command

Download the Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions below if you need a PDF file.

Click to access Encoder-Modulator-and-Decoder-Demodulator.pdf

Update Record:

Version	Date	Hauj lwm lawm
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. Kom paub meej, please refer to the introduction of the following commands.

Users can configure the parameters of the module through the configuration serial port (TTL sim no, 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 Sau ntawv saum xov tooj, piv txwv:

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

Hom Ntawv	ATDR_
parameter	Tsis muaj
Siv	for the integrated system to check whether the serial port is connected and identify the connected modules.
tus nqi rov qab	RCB returns the “device profile” string SUE1 returns “ATDRSUE1 OK” string SHD1 returns “ATDRSHD1 OK” string
remark	lus nug

Set Device Command

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

Set Gain Command

Hom Ntawv	ATSG$( tx1_gain),$( tx1_gain)_ Piv txwv: ATSG85.0,85.0_
parameter	tx1_gain: transmitter 1 gain tx2_gain: transmitter 2 gain
Siv	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 (transmitter)
Tus Nqi Rov Qab,	Piv txwv: ATSG85.0,85.0_set gain 85.000000 85.000000 Ua li
remark	hais kom ua, power off will not save.

Set Modulation Mode command

Hom Ntawv	ATSM$(gi), $(code_rate), $(constellation)_ Piv txwv: 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; Constellation: 0 QPSK; 1 QAM16; 2 QAM64
Siv	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 (transmitter)
Tus Nqi Rov Qab	Piv txwv:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, Ua li
remark	hais kom ua, power off will not save.

Get Device Status Command

Hom Ntawv	ATGD_
parameter	Tsis muaj
Siv	query the current number of transmit antennas, kev sib raug zoo, convolution code rate, number of constellations, transmit frequency, qhabwidth, gain parameters (transmitter)
Tus Nqi Rov Qab	Piv txwv: ATGD_ SISO, GI:1 /16, CR: 1/2, MOD: QPSK, freq: 800000KHZ, bw: 8000KHZ, tx1_gain: 86.000000 tx2_gain: 86.000000 Ua li
remark	lus nug

Set Encoder Command

Hom Ntawv	ATSE$(llc),$(rt),$(bitrate) ,$(gop),$(suab)_ Piv txwv: ATSE0,0,0.0,0,0_
parameter	1. Enhanced data reliability option llc: 0 disable; 1 pab kom (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. bitrate: 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 pab kom
Siv	Used to set encoding parameters (transmitter)
Tus Nqi Rov Qab	Piv txwv:ATSE0, 0,0.0,0,0_ HOM:0,RT:0,bitrate: 0.0Mbps,gop:0,suab:0,Ua li
remark	hais kom ua, save when power is off.

Get Encoder Command

Hom Ntawv	ATGE_
parameter	Tsis muaj
Siv	querying encoding parameters (sending end)
Tus Nqi Rov Qab	Piv txwv:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,suab:0,aes:0, Ua li
remark	Query command AES means the current encryption status: 0 disable; 1 pab kom

Get Input Command

Hom Ntawv	ATGI_
parameter	Tsis muaj
Siv	query the current camera input parameters (transmitter)
Tus Nqi Rov Qab	Piv txwv:ATGI_input_size: 1080p, input_rate: 60dev mub, sensor_type: hdmi,Ua li
remark	lus nug

Set Input Command

Hom Ntawv	ATSI$(input_size),$(input_rate)_ Piv txwv: ATSI1080,25_
parameter	1. Input resolution input_size: 0 cia lawv ntes; >0 specify input size 2. Input frame rate input_rate: 0 cia lawv ntes; > 0 specify input fps
Siv	To specify the input resolution and frame rate to meet some special signal sources, or some special application needs (transmitter)
Tus Nqi Rov Qab	Piv txwv: ATSI1080,25_ Input_size:1080p,input_rate: 25dev mub, Ua li
Taus	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

Hom Ntawv	ATSO$(output_size),$(output_rate)_ Piv txwv: ATSO720,30_
parameter	1. transmitter: encoding output resolution output_size: 0 equal to input_size; >0 specify output size 2. receiver: HDMI output resolution (720, 1080) 3. transmitter: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (dev mub) 4. receiver: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60)
Siv	1. transmitter: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction 2. receiver: used to configure the resolution and frame rate of HDMI output
Tus Nqi Rov Qab	Piv txwv: ATSO720,30_ output_size: 720p, output_rate: 30dev mub, Ua li
Taus	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.

Teev Cov Tswv Yim Hais Kom Ua (hloov HDMI / CVBS input)

Hom Ntawv	ATSU$(vin),$(ain)_ Piv txwv: ATSU0,1 _
parameter	1. Yees duab input xaiv VIN: 0 cia lawv ntes; 1 CVBS input; 2 quab yuam hdmi/SDI input 2. Audio input xaiv AIN: 0 cia lawv ntes; 1 quab yuam
Siv	Siv tau raws li cov kev cai uas yuav tsum tau muaj (Piv txwv: HDMI/SDI input yees duab, MIC input audio)
Tus Nqi Rov Qab	Piv txwv: ATSU0,1_ ATSU0,1 OK
remark	hais kom ua, fais fab tuag.

Get User Command

Hom Ntawv	ATGU _ Piv txwv: ATGU_
parameter	Tsis muaj
Siv	To query user-specific configuration
Tus Nqi Rov Qab	Piv txwv: ATGU_ ATGU0,1 OK
remark	lus nug return parameter description please refer to the ATSU command

Set Receiver Command

Hom Ntawv	ATSR $(freq), $(bw ), $(llc), $(cvbs)_ Piv txwv: ATSR320000,6000,0,0_
parameter	1. DR2C carrier frequency freq(KHZ) 200000~860000(200MHz~860MHz, 1KHz kauj ruam) 2. DR900 carrier center frequency freq(KHZ) 200000~1600000(200MHz~1.6GHz, 1KHz kauj ruam) 3. DR2C channel bandwidth bw(KHZ) 2000~8000(2MHz~8MHz, 1KHz kauj ruam) 4. DR900 channel bandwidth bw(KHZ) 3200~8000(3.2MHz~8MHz, 1KHz kauj ruam) 5. Enhanced data reliability option llc: 0 disable; 1 pab kom (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
Siv	To set the receiver parameter
Tus Nqi Rov Qab	example: ATSR320000,6000,0,0_ ATSR320000,6000,0,0 OK
remark	hais kom ua, save when power is off.

Get Receiver Command

Hom Ntawv	ATGR_
parameter	Tsis muaj
ATGR_	the receiving end parameter
Tus Nqi Rov Qab	Piv txwv: ATGR_ ATGR320000,6000,0,aes:0,cvbs:0 Ua li
remark	1. Query command 2. Aes parameter indicates the current encryption status: 0 disable;1 pab kom 3. CVBS parameter Indicates the current AV output standard: 0 pal;1 ntsc

Get Bit Error Rate Command

Hom Ntawv	ATGB_
parameter	Tsis muaj
Siv	querying the bit error rate and signal strength of the dual antennas at the receiving end
Tus Nqi Rov Qab	Piv txwv: ATGB_ ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 Ua li
Taus	1. Query commands 2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% mus 100.0% 3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 mus 100 4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock)

Set Password Command

Hom Ntawv	ATSP$(lo lus zais), $(lo lus zais)_ Piv txwv: ATSP123456, 123456_
parameter	AES tseem ceeb password: 6-digit password (ASCII) AES tseem ceeb password: 6-digit password (ASCII) (repeat it for confirmation)
Siv	Siv los teem cov AES tseem ceeb ntawm tus transceiver (kev sib cuag mus los thiab receiver)
Tus Nqi Rov Qab	Piv txwv: ATSP123456_ ATSP123456 OK
remark	1. Thaum cov password yog tag nrho 0, AES encryption is turned off. 2. Set the command and save it after powering it off.

Set Data Transfer Command

Hom Ntawv	ATST$(baud tus nqi), $( parity)_ Piv txwv: ATST115200,0_
parameter	1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200 2. Check Code: 0: Tsis muaj; 1: Odd; 2: Even
Siv	Used to set the baud rate and parity bit of the serial port for data transparent transmission
Tus Nqi Rov Qab	Piv txwv: ATST115200,0_ ATST115200,0 OK
Taus	Teev cia

Get Data Transfer Command

Hom Ntawv	ATGT_
parameter	Tsis muaj
Siv	Used to query the baud rate and check code
Tus Nqi Rov Qab	Piv txwv: ATGT_ ATGT115200,0 OK
Taus	Query command

Set IP Address Command

Hom Ntawv	ATSIP$(ip), $(ip)_ Piv txwv: ATSIP192.168.1.215,192.168.1.215_
Parameters	Local IP address Local IP address (rov hais dua)
Siv	Used to set the receiver IP address
Tus Nqi Rov Qab	Piv txwv: ATSIP_192.168.1 .215,192.168.1.215_ ATSIP192.168.1.215 OK
Taus	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

Hom Ntawv	ATGIP_ Piv txwv: ATGIP_
parameter	Tsis muaj
Siv	query tam sim no IP chaw nyob ntawm qhov tau txais xaus
tus nqi rov qab	Piv txwv: ATGIP_ ATGIP192.168.0.215 OK
remark	lus nug

OSD Overlay Protocol

Hom Ntawv	ATOSD$(idx), $(x), $(y), $(str)_ Piv txwv: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)
Siv	on the video screen.OSD information
tus nqi rov qab	Tsis muaj
Taus	1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 pixels, 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

Hom Ntawv	ATSAD$(freq),$(adjust) _ Piv txwv:ATSAD700000,2.5_
parameter	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
Muaj nuj nqi	Specify and adjust the value for the wireless gain setting using by ATSD cmd
Feedback	Piv txwv: ATSAD700000,2.5_ freq:700000,adjust:2.50 Ua li
Lus	Setting command is still valid when stopping power or resetting.

Get Gain To Adjust

Hom Ntawv	ATGAD[$(freq)]_ Piv txwv: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.
Muaj nuj nqi	Inquiry adjust the value for wireless gain setting using ATSD cmd
Feedback	Piv txwv: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 Ua li
Lus	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 qhov 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 (nkag) 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 (ris tsho) and E bit rate (Mbps). When I set E, the new value does not apply. Li ntawd, yog li. the E setting is only for monitoring of available bitrate? if I wish to change the E (bitrate) I have to change only B (qhabwidth)? 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.
Yog 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.

Lim

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

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 Pawg: COFDM, TX RX Module, Unidirectional ib-txoj kev Cim npe: cofdm, cofdm demodulator, ib-txoj kev

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

Cov Txheej Txheem

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 input, IP output

Composite CVBS input IP RJ45 Ethernet output Ultra-low latency encoder board, HDMI CVBS Encoder — Composite CVBS input IP RJ45 Ethernet tso zis Ultra-low latency encoder board, HDMI CVBS Encoder

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

COFDM Encoder module Advantage:

Ultra-low latency H.265/H.264 audio thiab yees duab encoding ntau txhawb 1080P@60 real-time yees duab capture thiab encoding
HDMI los yog AV audio thiab yees duab input, tom qab encoding, Ethernet chaw nres nkoj tso zis los yog tso zis rau wireless module, Yees duab encoding tom tus nqi yuav dynamically configured
Txhawb audio input thiab audio decoding tso zis
Txhawb ob yeeb yaj duab (HDMI+AV) ib txhij twg encoding (xaiv, Tus neeg ntawd yog HDMI los yog AV encoding, de ib tug ntawm ob input sourcing). )
Web UI los sis serial chaw nres nkoj UART NTAWM command configuration tswj

HDMI CVBS composite SDI video input encoder board digital IP ethernet output H264 H265 module board — HDMI CVBS composite SDI yees duab input encoder board cov IP ethernet tso zis H264 H265 module board

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

se: V6.5.6p

XYAUM: 4.1.2p

FAQs

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. Teb 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), Peb txiav txim liab glue tiv thaiv rau no ntaus ntawv thaum peb shipped nws.

COFDM Video Data Transmitter module — COFDM yees duab cov ntaub ntawv Transmitter module

Tus engineer kuj qhia tias koj xyuas seb tus cable yog xoob los yog tsis nyob rau hauv kev txom nyem.
Thov sim hloov tus FPC cable connecting ob boards
We can provide spare parts if you're sure which one.

2. Koj muab kuv cov UART AT command ua ntaub ntawv rau cov qauv no?

Kom

Thov xyuas hauv qab no.

Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM NTAWM command

3. Li cas no COFDM yees duab transmitter thiab receiver txhawb ib IP koob yees duab?

1. Nws tsis yooj yim mus cuag IPC rau ib Ib txoj kev COFDM txuas. Peb muaj ib tug qauv H264, Nws yog txuas nrog IPC input los expanding lub network chaw nres nkoj, Tiam sis muaj cov qauv RAU IPC qauv (Tsis yog tag nrho cov qauv ntawm IPC yuav zoo txuas nrog COFDM txuas nrog COFDM mus), Peb tau kuaj cov IPCs ntawm Hikvision, Dahua, thiab Xiongmai, thiab pom tias qhov zoo sib xws nyhuv ntawm 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, Uas yog tsis tus tsoos ob-txoj kev txuas txoj kev. Lawv yuav saib cov IP Koob yees duab yees duab thiab txawm tswj lub PTZ ntawm lub IP Koob yees duab ntawm lub web nplooj ntawv los yog PC-sab PC software (UART AT commands).

8. Vim yog cov qauv wireless txuas yog ib coFDM ib-txoj kev txuas; Yog tsis muaj reverse cov ntaub ntawv (tib txog kev sib kis tau tus kab mob no; Cov ntaub ntawv yuav kis tsis tau los ntawm tus receiver rau tus 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. Qhov no yog ib qho teeb meem uas muaj coob tus neeg muas zaub overlooked thaum xub thawj thiab tom qab complained txog tom qab siv nws.

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, thiab 8 Mhz of HDMI video link we use?

1. Thaum tam sim no, 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 (qhabwidth, GI, CR, thiab lwm yam.), 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. Lus nug, If our camera quality is good enough for both 4 MHz thiab 8 MHz bandwidth. Qhov no, Should the customer choose 4 MHz los 8 MHz?

Teb: 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. Lus nug: Which is better for this tx+rx set from a receive sensitivity view?

Teb: 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

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？

Kom

Thov xyuas hauv qab no

COFDM Relay Repeater module rau drone UAV wireless yees duab transmitter thiab receiver Vcan1870

COFDM Relay repeater for wireless video transmitter and receiver — COFDM Relay repeater rau wireless yees duab transmitter thiab receiver

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

Ib zaug xwb channel tau txais sensitivity:

-97+/-1dbm Ntawm QPSK 8MHz,

-98+/-1dbm Ntawm QPSK 6MHZ,
Sensitivity ntau zog los ntawm 3dbm thaum tau txais dual antennas

8. Qhov module txhawb dua 1.4G? piv txwv 2.4G, 3G, los yog 3.6G?

Yog, kev them nyiaj.

COFDM yees duab encoder modulator transmitter module 3.5G thiab 4G kuaj ntawd.

9. Qhov twg kuv download lub UDP neeg uas ua ntawv? Peb xav kom Splayer_v4.2_2020.6.6 uas peb siv nquag.

Tus receiver default firmware txhawb RTSP neeg uas ua ntawv, Ib txhia neeg xav UDP neeg uas ua ntawv, Peb kuj yuav muaj kev pab, then RTSP player doesn't support. (RTSP thiab UDP yuav tsuas xaiv ib qhov ob firmware)

Thov download ntawm qhov txuas hauv qab no.

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 neeg uas ua ntawv: Splayer teem rau nyob kwj dej

10. Koj yuav muaj ib lub thawv hlau los tiv thaiv cov COFDM receiver board?

Kom, thov mus saib rau hauv qab daim duab.

long range Wireless Video Transmitter and Receiver for Camera drone — Ntev ntau yam Wireless yees duab Transmitter thiab Receiver rau Koob yees duab drone

Tseem muaj lus nug?

Thov tiv tauj peb kom paub ntxiv.

Xa koj cov lus nug

Yuav hloov HDMI los yog CVBS yees duab input ntawm lub UART AT command?

Yuav upgrade tus COFDM yees duab receiver

Yuav upgrade lub COFDM drone yees duab encoder modulator board

COFDM Wireless Video encoder modulator board delay low latency — COFDM Wireless Video encoder modulator board

Kev

Muaj cov tsis muaj kev kaj.

Yog tus thawj saib xyuas"COFDM Modulator Demodulator Module Encoder Decoder HDMI CVBS AV Input AES 256 FHD RF streaming” Hu teb

107625

Hom Ntawv	ATSD $(mimo), $(gi), $(code_rate), $ (constellation), $(freq(KHZ)), $(bw(KHZ)), $(tx1_gain), $(tx2_gain)_ Piv txwv: 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; Constellation: 0 QPSK; 1 QAM16; 2 QAM64; RCB Carrier Center Frequency(ris tsho) 200000~2700000(200MHz~2.7GHz, 1KHz kauj ruam) RC900 Carrier center Frequency(ris tsho) 750000~930000(750MHz~930MHz, 1KHz kauj ruam) RCB Channel bandwidth bw(KHZ) 2000~8000(2MHz~8MHz, 1KHz kauj ruam) RCB Channel bandwidth bw(KHZ) 2000~8000 (2MHz~8MHz, 1KHz kauj ruam) 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
Tus Nqi Rov Qab	xws li:ATSD0,1,0,0,800000,8000,86.0,86.0_ SISO,GI: 1/16, CR:1/2, MOD: QPSK, freq:800000KHZ,bw:8000KHZ,tx1_gain:86.000000 tx2_gain:86.000000 Ua li
Ceeb toom	Teev cia, txuag thaum fais fab tuag. Different Bandwidths, Guard intervals, Convolution code rates, Data rate calculation formulas corresponding to constellations Air interface rate Rate(MBps) = (BandWidth(MHz) * 8.0/7.0) / (1+GI) * 1512/2048log2(constellation taw tes) code_rate * 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 $C:\Users\timyep\AppData\Roaming\Tencent\Users\157871537\QQ\WinTemp\RichOle\E0XEBCD_M4WD[M1BWR$}TK4.png$

27riam 110riam NLOS FAQ

kub tshaj plaws HDMI ultra low latency FAQ

Wireless yees duab Transmission Module

AI SDK Module Board

DVB-T2 Module

ISDB-T Module

HDMI Encoder Board

Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM NTAWM command

Update Record:

Suitable Models

Command Introduction

Command Classification

Command Details

Ping Command

Set Device Command

Set Gain Command

Set Modulation Mode command

Get Device Status Command

Set Encoder Command

Get Encoder Command

Get Input Command

Set Input Command

Set Output Command

Teev Cov Tswv Yim Hais Kom Ua (hloov HDMI / CVBS input)

Get User Command

Set Receiver Command

Get Receiver Command

Get Bit Error Rate Command

Set Password Command

Set Data Transfer Command

Get Data Transfer Command

Set IP Address Command

Get IP Address Command

OSD Overlay Protocol

Set Gain To Adjust

Get Gain To Adjust

Serial Port Utility software download

FAQ

1. How can I return to the No Password setting with 000000 indications after the change?

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 (nkag) good for linear output operation? Or do you suggest some limited range for better linear operation?

3. I tried to set – B bandwidth (ris tsho) and E bit rate (Mbps). When I set E, the new value does not apply. Li ntawd, yog li. the E setting is only for monitoring of available bitrate? if I wish to change the E (bitrate) I have to change only B (qhabwidth)? Am I right?

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

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

Another side view

COFDM Encoder module, CVBS / HDMI input, IP output

COFDM Encoder module Advantage:

COFDM transmitter module

COFDM modulator-demodulator datasheet download

The last version of the TX RX board

FAQs

Tseem muaj lus nug?

Kev

Yog tus thawj saib xyuas"COFDM Modulator Demodulator Module Encoder Decoder HDMI CVBS AV Input AES 256 FHD RF streaming” Hu teb

Yam khoom

sau ntawv cia Hu teb

Nrhiav tau ntxiv los ntawm iVcan.com

ID nkag mus

Rau npe