Encoder Modulator Decoder Demodulator Module Parametre Talîmatên Veavakirinê Fermana COFDM AT

Encoder Modulator Decoder Demodulator Module Parametre Talîmatên Veavakirinê Fermana COFDM AT

Encoder Modulator Decoder Demodulator Module
COFDM-RF-demodulator-dekoder-receiver-H264-Vcan1776RX-H264

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

Update Record:

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1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
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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 withATand 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 (asta TTL, 3.3bike) of the COFDM module. For detailed serial port configuration, refer to the figure below. Please use tools such asSerial Port Debugging Assistantto send AT commands to the COFDM module, pay attention to the use of nivîstok, bo nimûne:

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 CommandsATDR, ATGD, ATGE, ATGI , ATGR, ATGT, ATGB, ATGU, ATGIP
Setting CommandsATSD, 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 CommandsATSD, ATSE, ATSI, ATSO, ATSR, ATSP, ATST, ATSU, ATSIP
Power-off Not Saving CommandsATSG, ATSM, ATOSD

According to the configuration transmitter or receiver, the classification is as follows:

Sender Configuration CommandsATDR, ATSD, ATGD, ATSG, ATSM, ATSE, ATGE, ATSI, ATGI, ATSO, ATSP, ATST, ATGT, ATSU, ATGU, ATOSD
Receiver Configuration CommandsATDR, ATSR, ATGR, ATSP, ATST, ATGT, ATGB, ATSIP, ATGIP

Command Details

Ping Command

ÇapATDR_
parametreyêNa
Bikaranînfor the integrated system to check whether the serial port is connected and identify the connected modules.
Nirxa vegerêRCB returns thedevice profilestring
SUE1 returnsATDRSUE1 OKstring
SHD1 returnsATDRSHD1 OKstring
Bingotinfermana pirsê

Set Device Command

ÇapATSD $(mimo), $(gi), $(Hesabkirina rêjeya veguheztina pergala veguheztina wireless ya COFDM), $ (constellation), $(freq(KHz)), $(bw(KHz)), $(tx1_gain), $(tx2_gain)_
Mînak: ATSD0,1,0,0,800000,8000,86.0,86.0_
parametreyêOne Antenna/Dual antenna mimo: 0 mimo disable; 1 mimo enable
Guard Interval GI: 0 1/32; 1 1/16; 2 1/8; 3 1/4
Convolution Code Rate: 0 1/2; 1 2 /3; 2 3/4; 3 5/6; 4 7/8;
constellation: 0 QPSK; 1 QAM16; 2 QAM64;
RCB Carrier Center Frequency(kHz) 200000~2700000(200MHz~2.7GHz, 1gavê KHz)
RC900 Carrier center Frequency(kHz) 750000~930000(750MHz ~ 930MHz, 1gavê KHz)
RCB Channel bandwidth bw(KHz) 2000~8000(2MHz~8MHz, 1gavê KHz)
RCB Channel bandwidth bw(KHz) 2000~8000 (2MHz~8MHz, 1gavê KHz)
Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB gav avêtin
Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB gav avêtin
Nirxa Vegerêwekî:ATSD0,1,0,0,800000,8000,86.0,86.0_
SISO,GI: 1/16, CR:1/2, MOD: QPSK, freq:800000KHz,bw:8000KHz,tx1_gain:86.000000 tx2_gain:86.000000 OK
NotSet command, save when power off.
Different Bandwidths, navberan de cerdewanek, Convolution code rates, Data rate calculation formulas corresponding to constellations
Air interface rate Rate(Hesabkirina rêjeya veguheztina pergala veguheztina wireless ya COFDM) Hesabkirina rêjeya veguheztina pergala veguheztina wireless ya COFDM (Bandê(MHz) * 8.0/7.0) / (1+GI) * 1512/2048*Hesabkirina rêjeya veguheztina pergala veguheztina wireless ya COFDM(Hesabkirina rêjeya veguheztina pergala veguheztina wireless ya COFDM) * Hesabkirina rêjeya veguheztina pergala veguheztina wireless ya COFDM * 188/204.
Taking 8MHz bandwidth as an example, different guard intervals, convolution code rates, data rates corresponding to constellations and required receiving signal-to-noise ratiosC:\Users\timyep\AppData\Roaming\Tencent\Users\157871537\QQ\WinTemp\RichOle\E0XEBCD_M4WD[M1BWR$}TK4.png

Set Gain Command

ÇapATSG$( tx1_gain),$( tx1_gain)_
Mînak: ATSG85.0,85.0_
parametreyêtx1_gain: Transmitter 1 qezenc
tx2_gain: Transmitter 2 qezenc
BikaranînTo 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 (stefartî)
Nirxa Vegerê,Mînak: ATSG85.0,85.0_set gain 85.000000 85.000000 OK
Bingotinfermana sazkirinê, power off will not save.

Set Modulation Mode command

ÇapATSM$(gi), $(Hesabkirina rêjeya veguheztina pergala veguheztina wireless ya COFDM), $(constellation)_
Mînak: ATSM1,1,2_
parametreyêGard 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
BikaranînDynamically 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 (stefartî)
Nirxa VegerêMînak:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, OK
Bingotinfermana sazkirinê, power off will not save.

Get Device Status Command

ÇapATGD_
parametreyêNa
Bikaranînquery the current number of transmit antennas, interval cerdevan, convolution code rate, number of constellations, transmit frequency, bandwidth, gain parameters (stefartî)
Nirxa VegerêMînak: ATGD_
SISO, GI:1 /16, CR: 1/2, MOD: QPSK, freq: 800000KHz, bw: 8000KHz, tx1_gain: 86.000000 tx2_gain: 86.000000 OK
Bingotinfermana pirsê

Set Encoder Command

ÇapATSE$(llc),$(rt),$(bitrate) ,$(gop),$(audio)_
Mînak: ATSE0,0,0.0,0,0_
parametreyê1. Enhanced data reliability option llc: 0 disable; 1 bikêrkirin (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 bikêrkirin
BikaranînUsed to set encoding parameters (Transmitter)
Nirxa VegerêMînak:ATSE0, 0,0.0,0,0_
AWA:0,RT:0,bitrate: 0.0Mbps,gop:0,audio:0,OK
Bingotinfermana sazkirinê, save when power is off.

Get Encoder Command

ÇapATGE_
parametreyêNa
Bikaranînquerying encoding parameters (sending end)
Nirxa VegerêMînak:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,audio:0,aes:0, OK
BingotinQuery command AES means the current encryption status: 0 disable; 1 bikêrkirin

Get Input Command

ÇapATGI_
parametreyêNa
Bikaranînquery the current camera input parameters (stefartî)
Nirxa VegerêMînak:ATGI_input_size: 1080p, input_rate: 60fps, sensor_type: hdmi,OK
Bingotinfermana pirsê

Set Input Command

ÇapATSI$(input_size),$(input_rate)_
Mînak: ATSI1080,25_
parametreyê1. Input resolution input_size: 0 bila pergal tespît bike; >0 specify input size
2. Input frame rate input_rate: 0 bila pergal tespît bike; > 0 specify input fps
BikaranînTo specify the input resolution and frame rate to meet some special signal sources, or some special application needs (stefartî)
Nirxa VegerêMînak: ATSI1080,25_
Input_size:1080p,input_rate: 25fps, OK
têbînîAfter 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

ÇapATSO$(output_size),$(output_rate)_
Mînak: ATSO720,30_
parametreyê1. 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 (fps)
4. Receiver: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60)
Bikaranîn1. 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
Nirxa VegerêMînak: ATSO720,30_
output_size: 720p, output_rate: 30fps, OK
têbînî1. 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.

Fermana Çavkaniyên Input Set (biguherîne HDMI / input CVBS)

ÇapATSU$(vin),$(ain)_
Mînak: ATSU0,1_
parametreyê1. Hilbijartina têketina vîdyoyê VIN: 0 bila pergal tespît bike; 1 input CVBS zorê; 2 zorê hdmi / input SDI
2. Hilbijartina têketina deng AIN: 0 bila pergal tespît bike; 1 hêza input analog
BikaranînJi bo pêkanîna daxwazên serîlêdanê yên taybetî tê bikar anîn (Mînak: Vîdyoya têketina HDMI / SDI, dengê têketina MIC)
Nirxa VegerêMînak: ATSU0,1_
ATSU0,1 OK
Bingotinfermana sazkirinê, hêza-off xilas bike.

Get User Command

ÇapATGU _
Mînak: ATGU_
parametreyêNa
BikaranînTo query user-specific configuration
Nirxa VegerêMînak: ATGU_
ATGU0,1 OK
Bingotinfermana pirsê
return parameter description please refer to the ATSU command

Set Receiver Command

ÇapATSR $(freq), $(bw ), $(llc), $(cvbs)_
Mînak: ATSR320000,6000,0,0_
parametreyê1. DR2C carrier frequency freq(KHz) 200000~860000(200MHz ~ 860MHz, 1gavê KHz)
2. DR900 carrier center frequency freq(KHz) 200000~1600000(200MHz~1.6GHz, 1gavê KHz)
3. DR2C channel bandwidth bw(KHz) 2000~8000(2MHz~8MHz, 1gavê KHz)
4. DR900 channel bandwidth bw(KHz) 3200~8000(3.2MHz~8MHz, 1gavê KHz)
5. Enhanced data reliability option llc: 0 disable; 1 bikêrkirin (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
BikaranînTo set the receiver parameter
Nirxa Vegerêexample: ATSR320000,6000,0,0_
ATSR320000,6000,0,0 OK
Bingotinfermana sazkirinê, save when power is off.

Get Receiver Command

ÇapATGR_
parametreyêNa
ATGR_the receiving end parameter
Nirxa VegerêMînak: ATGR_
ATGR320000,6000,0,aes:0,cvbs:0 OK
Bingotin1. Query command
2. Aes parameter indicates the current encryption status: 0 disable;1 bikêrkirin
3. CVBS parameter Indicates the current AV output standard: 0 pal;1 ntsc

Get Bit Error Rate Command

ÇapATGB_
parametreyêNa
Bikaranînquerying the bit error rate and signal strength of the dual antennas at the receiving end
Nirxa VegerêMînak: ATGB_
ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 OK
têbînî1. Query commands
2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ji 0.0% ber 100.0%
3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ji 0 ber 100
4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock)

Set Password Command

ÇapATSP$(şîfre), $(şîfre)_
Mînak: ATSP123456, 123456_
parametreyêAES key password: 6-şîfreya hejmarî (ASCII)
AES key password: 6-şîfreya hejmarî (ASCII) (repeat it for confirmation)
BikaranînUsed to set the AES key of the transceiver (stefartî û destikê)
Nirxa VegerêMînak: ATSP123456_
ATSP123456 OK
Bingotin1. 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

ÇapATST$(rêjeya baud), $( parity)_
Mînak: ATST115200,0_
parametreyê1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200
2. Check Code: 0: Netû; 1: Ecêb; 2: Hetta
BikaranînUsed to set the baud rate and parity bit of the serial port for data transparent transmission
Nirxa VegerêMînak: ATST115200,0_
ATST115200,0 OK
têbînîSet command

Get Data Transfer Command

ÇapATGT_
parametreyêNa
BikaranînUsed to query the baud rate and check code
Nirxa VegerêMînak: ATGT_
ATGT115200,0 OK
têbînîQuery command

Set IP Address Command

ÇapATSIP$(ip), $(ip)_
Mînak: ATSIP192.168.1.215,192.168.1.215_
ParametreyênLocal IP address
Local IP address (repeat to confirm)
BikaranînUsed to set the receiver IP address
Nirxa VegerêMînak: ATSIP_192.168.1 .215,192.168.1.215_
ATSIP192.168.1.215 OK
têbînî1. 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

ÇapATGIP_
Mînak: ATGIP_
parametreyêNa
Bikaranînji bo ku navnîşana IP-ya heyî ya dawiya wergirtinê bipirsin
Nirxa vegerêMînak: ATGIP_
ATGIP192.168.0.215 OK
Bingotinfermana pirsê

OSD Overlay Protocol

ÇapATOSD$(idx), $(x), $(y), $(str)_
Mînak:ATOSD0,40,20,height: 100m_
parametreyê1. 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)
Bikaranînon the video screen.OSD information
Nirxa vegerêNa
têbînî1. 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

ÇapATSAD$(freq),$(adjust) _ Mînak:ATSAD700000,2.5_
parametreyêwireless 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
KarîSpecify and adjust the value for the wireless gain setting using by ATSD cmd
FeedbackMînak: ATSAD700000,2.5_ freq:700000,adjust:2.50 OK
CommentsSetting command is still valid when stopping power or resetting.

Get Gain To Adjust

ÇapATGAD[$(freq)]_ Mînak:ATGAD700000_
parametreyêwireless 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.
KarîInquiry adjust the value for wireless gain setting using ATSD cmd
FeedbackMînak: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 OK
CommentsInquiry command.

Serial Port Utility software download

https://www.alithon.com/downloads

Pirs û Bersîv

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 ew 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 (Qezenc) 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 setB bandwidth (kHz) and E bit rate (Mbps). When I set E, the new value does not apply. Wiha. 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 ‘Edirectly, because if the output video bit rate is greater than the wireless air interface rate, the system will not work normally.
Bi xwerû, the internal video bit rate ‘Ewill be set to 0 for automatic. Customers only need to modify ‘Bto 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 Modulator Demodulator Module Encoder Dekoder HDMI CVBS AV Ketina AES 256 FHD RF weşana

$0.00

SKU: Vcan1776 hatiye standin.: , , Tags: , ,
107625

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