Encoder Modulator Decoder Module Module Configuration Stiùireadh COFDM AT Command

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

Cliog gus faighinn a-steach Encoder-Modulator-and-Decoder-Demodulator.pdf

Update Record:

Tionndadh	Ceann-là	Tuairisgeul
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 ìre, 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 Ur, mar eisimpleir:

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

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

Inneal a 'Chlàir	ATDR_
paramadair	Chan eil
Cleachdaidh	for the integrated system to check whether the serial port is connected and identify the connected modules.
Luach tilleadh	RCB returns the “device profile” string SUE1 returns “ATDRSUE1 OK” string SHD1 returns “ATDRSHD1 OK” string
Facal	àithne ceist

Set Device Command

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Set Gain Command

Inneal a 'Chlàir	ATSG$( tx1_gain),$( tx1_gain)_ eisimpleir: ATSG85.0,85.0_
paramadair	tx1_gain: chraobh-sgaoilidh 1 buannachadh tx2_gain: chraobh-sgaoilidh 2 buannachadh
Cleachdaidh	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 (chraobh-sgaoilidh)
Return Value,	eisimpleir: ATSG85.0,85.0_set gain 85.000000 85.000000 OK
Facal	setting command, power off will not save.

Set Modulation Mode command

Inneal a 'Chlàir	ATSM$(gi), $(Àireamhachadh ìre tar-chuir siostam tar-chuir gun uèir COFDM), $(reul-bhad)_ eisimpleir: ATSM1,1,2_
paramadair	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
Cleachdaidh	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 (chraobh-sgaoilidh)
Return Value	eisimpleir:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, OK
Facal	setting command, power off will not save.

Get Device Status Command

Inneal a 'Chlàir	ATGD_
paramadair	Chan eil
Cleachdaidh	query the current number of transmit antennas, fhreiceadain ceada, convolution code rate, number of constellations, transmit frequency, bandwidth, gain parameters (chraobh-sgaoilidh)
Return Value	eisimpleir: ATGD_ SISO, GI:1 /16, CR: 1/2, MOD: QPSK, freq: 800000KHz, bw: 8000KHz, tx1_gain: 86.000000 tx2_gain: 86.000000 OK
Facal	àithne ceist

Set Encoder Command

Inneal a 'Chlàir	ATSE$(llc),$(rt),$(bitrate) ,$(gop),$(èisteachd)_ eisimpleir: ATSE0,0,0.0,0,0_
paramadair	1. Enhanced data reliability option llc: 0 disable; 1 comas a thoirt (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 comas a thoirt
Cleachdaidh	Used to set encoding parameters (chraobh-sgaoilidh)
Return Value	eisimpleir:ATSE0, 0,0.0,0,0_ mode:0,RT:0,bitrate: 0.0Mbps,gop:0,èisteachd:0,OK
Facal	setting command, save when power is off.

Get Encoder Command

Inneal a 'Chlàir	ATGE_
paramadair	Chan eil
Cleachdaidh	querying encoding parameters (sending end)
Return Value	eisimpleir:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,èisteachd:0,aes:0, OK
Facal	Query command AES means the current encryption status: 0 disable; 1 comas a thoirt

Get Input Command

Inneal a 'Chlàir	ATGI_
paramadair	Chan eil
Cleachdaidh	query the current camera input parameters (chraobh-sgaoilidh)
Return Value	eisimpleir:ATGI_input_size: 1080p, input_rate: 60fps, sensor_type: hdmi,OK
Facal	àithne ceist

Set Input Command

Inneal a 'Chlàir	ATSI$(input_size),$(input_rate)_ eisimpleir: ATSI1080,25_
paramadair	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
Cleachdaidh	To specify the input resolution and frame rate to meet some special signal sources, or some special application needs (chraobh-sgaoilidh)
Return Value	eisimpleir: ATSI1080,25_ Input_size:1080p,input_rate: 25fps, OK
beachdan	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

Inneal a 'Chlàir	ATSO$(output_size),$(output_rate)_ eisimpleir: ATSO720,30_
paramadair	1. chraobh-sgaoilidh: encoding output resolution output_size: 0 equal to input_size; >0 specify output size 2. trusaidh: HDMI output resolution (720, 1080) 3. chraobh-sgaoilidh: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (fps) 4. trusaidh: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60)
Cleachdaidh	1. chraobh-sgaoilidh: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction 2. trusaidh: used to configure the resolution and frame rate of HDMI output
Return Value	eisimpleir: ATSO720,30_ output_size: 720p, output_rate: 30fps, OK
beachdan	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-steach)

Inneal a 'Chlàir	ATSU$(vin),$(ain)_ eisimpleir: ATSU0,1 _
paramadair	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
Cleachdaidh	Used to meet specific application requirements (eisimpleir: HDMI/SDI input video, MIC input audio)
Return Value	eisimpleir: ATSU0,1_ ATSU0,1 OK
Facal	setting command, power-off save.

Get User Command

Inneal a 'Chlàir	ATGU _ eisimpleir: ATGU_
paramadair	Chan eil
Cleachdaidh	To query user-specific configuration
Return Value	eisimpleir: ATGU_ ATGU0,1 OK
Facal	àithne ceist return parameter description please refer to the ATSU command

Set Receiver Command

Inneal a 'Chlàir	ATSR $(freq), $(bw ), $(llc), $(cvbs)_ eisimpleir: ATSR320000,6000,0,0_
paramadair	1. DR2C carrier frequency freq(KHz) 200000~860000(200MHz ~ 860MHz, 1Ceum KHz) 2. DR900 carrier center frequency freq(KHz) 200000~1600000(200MHz~1.6GHz, 1Ceum KHz) 3. DR2C channel bandwidth bw(KHz) 2000~8000(2MHz ~ 8 MHz, 1Ceum KHz) 4. DR900 channel bandwidth bw(KHz) 3200~8000(3.2MHz ~ 8 MHz, 1Ceum KHz) 5. Enhanced data reliability option llc: 0 disable; 1 comas a thoirt (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
Cleachdaidh	To set the receiver parameter
Return Value	example: ATSR320000,6000,0,0_ ATSR320000,6000,0,0 OK
Facal	setting command, save when power is off.

Get Receiver Command

Inneal a 'Chlàir	ATGR_
paramadair	Chan eil
ATGR_	the receiving end parameter
Return Value	eisimpleir: ATGR_ ATGR320000,6000,0,aes:0,cvbs:0 OK
Facal	1. Query command 2. Aes parameter indicates the current encryption status: 0 disable;1 comas a thoirt 3. CVBS parameter Indicates the current AV output standard: 0 pal;1 ntsc

Get Bit Error Rate Command

Inneal a 'Chlàir	ATGB_
paramadair	Chan eil
Cleachdaidh	querying the bit error rate and signal strength of the dual antennas at the receiving end
Return Value	eisimpleir: ATGB_ ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 OK
beachdan	1. Query commands 2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% gu 100.0% 3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 gu 100 4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock)

Set Password Command

Inneal a 'Chlàir	ATSP $(facal-faire), $(facal-faire)_ eisimpleir: ATSP123456, 123456_
paramadair	Am facal-faire airson AES saor an asgaidh: 6-digit password (ASCII) Am facal-faire airson AES saor an asgaidh: 6-digit password (ASCII) (repeat it for confirmation)
Cleachdaidh	Air a chleachdadh gus iuchair AES an transceiver a shuidheachadh (chraobh-sgaoilidh agus trusaidh)
Return Value	eisimpleir: ATSP123456_ ATSP123456 ceart gu leòr
Facal	1. Nuair a tha am facal-faire uile 0, AES encryption is turned off. 2. Set the command and save it after powering it off.

Set Data Transfer Command

Inneal a 'Chlàir	ATST$(baud ìre), $( parity)_ eisimpleir: ATST115200,0_
paramadair	1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200 2. Check Code: 0: Chan eil gin; 1: Odd; 2: Even
Cleachdaidh	Used to set the baud rate and parity bit of the serial port for data transparent transmission
Return Value	eisimpleir: ATST115200,0_ ATST115200,0 OK
beachdan	Suidhich àithne

Get Data Transfer Command

Inneal a 'Chlàir	ATGT_
paramadair	Chan eil
Cleachdaidh	Used to query the baud rate and check code
Return Value	eisimpleir: ATGT_ ATGT115200,0 OK
beachdan	Query command

Set IP Address Command

Inneal a 'Chlàir	ATSIP$(ip), $(ip)_ eisimpleir: ATSIP192.168.1.215,192.168.1.215_
Paramadairean	Local IP address Local IP address (ath-aithris gus a dhearbhadh)
Cleachdaidh	Used to set the receiver IP address
Return Value	eisimpleir: ATSIP_192.168.1 .215,192.168.1.215_ ATSIP192.168.1.215 OK
beachdan	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

Inneal a 'Chlàir	ATGIP_ eisimpleir: ATGIP_
paramadair	Chan eil
Cleachdaidh	gus an seòladh IP làithreach aig an deireadh faighinn a cheasnachadh
Luach tilleadh	eisimpleir: ATGIP_ ATGIP192.168.0.215 ceart gu leòr
Facal	àithne ceist

OSD Overlay Protocol

Inneal a 'Chlàir	ATOSD$(idx), $(x), $(y), $(str)_ eisimpleir:ATOSD0,40,20,height: 100m_
paramadair	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)
Cleachdaidh	on the video screen.OSD information
Luach tilleadh	Chan eil
beachdan	1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 piogsail, 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

Inneal a 'Chlàir	ATSAD$(freq),$(adjust) _ eisimpleir:ATSAD700000,2.5_
paramadair	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
Dleastanas	Specify and adjust the value for the wireless gain setting using by ATSD cmd
Beachdan	eisimpleir: ATSAD700000,2.5_ freq:700000,adjust:2.50 OK
Beachdan	Setting command is still valid when stopping power or resetting.

Get Gain To Adjust

Inneal a 'Chlàir	ATGAD[$(freq)]_ eisimpleir:ATGAD700000_
paramadair	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.
Dleastanas	Inquiry adjust the value for wireless gain setting using ATSD cmd
Beachdan	eisimpleir: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 OK
Beachdan	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 a ' 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 (Faighibh) 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. Mar sin. 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.

For more details on the Encoder Modulator Decoder Demodulator Module, please send an inquiry to us.

Filter

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 Cur a-steach CVBS AV AES 256 Sruth FHD RF

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: Vcan 1776 Roinnean-seòrsa: COFDM, Modal TX RX, Aon-shlighe aon-stiùiridh Tags: COFDM, demodulator cofdm, Aon shlighe

COFDM Modulator Demodulator Module Encoder Decoder HDMI Cur a-steach CVBS AV AES 256 Sruth FHD RF

Clàr-innse

Sealladh taobh eile

Modulator Demodulator Module Encoder Decoder HDMI CVBS AV Input AES 256 FHD RF streaming parameter configuration board — Demodulator modulator COFDM HDMI Decoder modal CVBS decoder HDMI CVBS AV Input AES 256 Bòrd rèiteachaidh paramadair sruthadh FHD RF

Modal COFDM Encoder, CVBS / HDMI-steach, Toradh IP

Composite CVBS input IP RJ45 Ethernet output Ultra-low latency encoder board, HDMI CVBS Encoder — Cuir a-steach CVBS ioma-fhillte IP RJ45 Toradh Ethernet Bòrd còdaidh latency ultra-ìosal, HDMI CVBS Encoder

Airson tuilleadh fiosrachaidh mun bhòrd còdaidh COFDM, feuch an tadhal thu an seo

Buannachd modal COFDM Encoder:

Ultra-ìosal latency H.265/H.264 còdachadh claisneachd is bhidio an taic as motha 1080P@60 glacadh bhidio fìor-ùine agus còdachadh
Cuir a-steach claisneachd is bhidio HDMI no AV, às deidh còdachadh, toradh port Ethernet no Toradh gu modal gun uèir, faodar ìre bit còdachadh bhidio a rèiteachadh gu dinamach
Taic a thoirt do èisteachd a-steach agus èisteachd iompachadh toradh
Cuir taic ri dà bhidio (HDMI + AV) còdachadh cuir a-steach aig an aon àm (roghainn, Is e am prìomh rud còdachadh HDMI no AV, tagh aon bho dhà lorg inntrigidh). )
UI lìn no port sreathach UART AT àithne airson riaghladh rèiteachaidh

HDMI CVBS composite SDI video input encoder board digital IP ethernet output H264 H265 module board — HDMI CVBS bòrd còdaidh cuir a-steach bhidio SDI didseatach toradh ethernet IP bòrd modal H264 H265

Modal tar-chuir COFDM

COFDM Wireless video transmitter module RCB board — Bòrd RCB modal inneal-sgaoilidh bhidio gun uèir COFDM

Change RF connector from IPEX to MMCX for COFDM wireless video transmitter encoder modulator board — Atharraich ceanglaiche RF bho IPEX gu MMCX airson bòrd modulator encoder inneal-sgaoilidh bhidio gun uèir COFDM

Luchdaich a-nuas COFDM modulator-demodulator dàta

Bileag demodulator COFDM Vcan1776RX-H264

An dreach mu dheireadh den bhòrd TX RX

TX: V6.5.6p

RX: 4.1.2p

Ceistean Cumanta

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

Ceist 1: Am b’ urrainn dhut àireamh pàirt den phàirt seo innse dhomh, bidh sinn a’ feuchainn ri lorg ionadail agus sgrùdadh. freagairt 1: Is e inntrigeadh leis an t-ainm LOH32PN2R2NNC a th’ ann.

COFDM-Transmitter-Module-no-tx output power — Cumhachd toraidh COFDM-Transmitter-Module-no-tx

Mol puingean-sgrùdaidh: Ma tha sruth solarachaidh cumhachd a’ bhùird gu math ach nach eil toradh RF ann, is dòcha am pàirt gu h-ìosal TC1-1-13MX+ mar as trice air a mhilleadh.
Gus milleadh a sheachnadh air an inneal seo rè còmhdhail (tha an inneal fhèin an ìre mhath àrd), dh ’òrduich sinn dìon glaodh dearg airson an inneal seo nuair a chuir sinn air falbh e.

COFDM Video Data Transmitter module — Modal tar-chuir dàta bhidio COFDM

Tha an t-innleadair cuideachd a’ moladh gun dèan thu sgrùdadh feuch a bheil an càball sgaoilte no ann an droch cheangal.
Feuch an cuir thu an càball FPC an àite an dà bhòrd
We can provide spare parts if you're sure which one.

2. An urrainn dhut am faidhle àithne UART AT a thabhann dhomh airson a’ mhodail seo?

Seadh

Feuch an toir thu sùil air a’ cheangal gu h-ìosal.

Encoder Modulator Decoder Module Module Configuration Stiùireadh COFDM AT Command

3. Ciamar a tha an inneal-sgaoilidh bhidio agus inneal-glacaidh COFDM seo a’ toirt taic do chamara IP?

1. Chan eil e furasta ceangal a dhèanamh ri IPC airson a ceangal COFDM aon-shligheach. Tha modail H264 againn, a tha ceangailte ri cuir a-steach IPC le bhith a’ leudachadh port an lìonraidh, ach tha riatanasan ann airson modalan IPC (chan urrainn a h-uile modal de IPC a bhith ceangailte gu math ri ceanglaichean COFDM), tha sinn air deuchainn a dhèanamh air IPCs de Hikvision, Dàhua, agus Xiongmai, agus fhuair e a-mach gu bheil buaidh ceangail aig Hikvision tha e gu math freagarrach.

2. Tha e eu-comasach a thoirt air falbh gu dìreach HDMI CVBS encoder agus ceangail an camara IP ris a’ bhòrd COFDM Transmitter. Feumaidh ceangal COFDM aon-shligheach ri IPC dòighean teicnigeach sònraichte airson a thoirt gu buil.

3. Is e an dòigh as fheàrr a bhith a’ moladh a bhith a’ cleachdadh ar transceiver tar-chuir ìomhaigh dà-shligheach, a bheir taic dhìreach don chamara IP.

4. Ma dh’ fheumas an neach-ceannach am bòrd sgaoilidh COFDM a chleachdadh gus taic a thoirt don chamara IP, tha dà phuing ann airson aire a thoirt.

5. Is e duilgheadas teicnigeach a th’ anns a’ chiad phuing. Feumaidh sinn dòigh eile a chleachdadh gus ceanglaichean COFDM aon-stiùiridh a chleachdadh le IPC.

6.Ma tha thu a’ beachdachadh air IPC bho shealladh lughdachadh cosgais, you don't need to consider it. Leis gu bheil am bòrd còdaidh agus am bòrd dì-chòdaidh fhathast riatanach, chan urrainnear a’ chosgais a shàbhaladh.

7. The second point is the customer's usage habit, nach e an dòigh ceangail dà-shligheach traidiseanta tuilleadh. Faodaidh iad coimhead air a 'bhidio camara IP agus eadhon smachd a chumail air PTZ a' chamara IP tron duilleag lìn no bathar-bog PC-taobh PC (Òrdughan UART AT).

8. Air sgàth a’ mhodail seo tha ceangal gun uèir na cheangal aon-shligheach COFDM; chan eil dàta cùil ann (tar-chuir aon-shligheach a-mhàin; chan urrainnear dàta a ghluasad bhon ghlacadair chun inneal-sgaoilidh); 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. Is e duilgheadas a tha seo air an do dhìochuimhnich mòran de luchd-ceannach an toiseach agus an dèidh sin rinn iad gearan às deidh dhaibh a chleachdadh.

10. So we don't recommend that the client choose a one-way COFDM transmitter and receiver for the IP camera. Tha fuasgladh nas fheàrr againn airson an IP Camera tro dà transceiver ceangal bhidio.

4. Am b’ urrainn dhut an C/N riatanach a thoirt dhomh (BER=2x10-4 às dèidh Viterbi) airson diofar leud-bann 2, 4, 6, agus 8 Mhz de cheangal bhidio HDMI a bhios sinn a’ cleachdadh?

1. An-dràsta, chan eil an cuidhteas a’ toirt seachad ach dà pharaimear de neart chomharran agus ìre mearachd bit, agus chan eil paramadair C/N ann

2. Dè na crìochan a dh'fheumas tu atharrachadh a rèir diofar leud-bann? Mas e sruth còd bhidio a th’ ann, bidh am bòrd còdaidh tar-chuir fhèin gu fèin-obrachail a’ tomhas an ìre còd sruth bhidio iomchaidh a rèir nam paramadairean gun uèir a thathas a ’cleachdadh an-dràsta (bandwidth, GI, CR, etc.), agus lorgar an ìre còd bhidio às deidh dha an leud-bann atharrachadh leis a’ bhòrd paramadair ag atharrachadh gu fèin-ghluasadach.

cofdm video transmitter parameter configuare tool — inneal rèiteachaidh paramadair tar-chuir bhidio cofdm

3. Ceist, Ma tha càileachd ar camara math gu leòr airson an dà chuid 4 MHz agus 8 MHz bandwidth. Anns a 'chùis seo, Am bu chòir don neach-ceannach taghadh 4 MHz no 8 MHz?

freagairt: Bidh na luchdan COFDM aon-shligheach againn a’ cleachdadh leud-bann gun uèir 4Mz gu bunaiteach, co-ionann ri ìre bit bhidio de 3.12Mbps, A tha gu leòr airson 1080p; Ma thèid atharrachadh gu leud-bann gun uèir 8MHz fo na h-aon chumhachan, bidh an ìre bhidio a’ dùblachadh gu 6.24Mbps. Faodaidh gach neach-ceannach taghadh eadar leud-bann gun uèir 4MHz agus 8MHz, faodar beachdachadh air eadhon 6MHz cuideachd.

4. Ceist: A tha nas fheàrr airson an t-seata tx + rx seo bho shealladh cugallachd fhaighinn?

freagairt: Airson ceanglaichean gun uèir, faodar a mheas gu sìmplidh gum bi an cugallachd faighinn nas àirde aig leud-bann gun uèir nas ìsle. Bho shealladh faighinn cugallachd, 4MHz>6MHz>8MHz

5. Dè an dreach HDMI a tha àbhaisteach ann an cuir a-steach Modulator?

HDMI 1.4

6. A bheil Modalan Ath-chraoladh COFDM agad airson an inneal-sgaoilidh bhidio gun uèir agus an neach-glacaidh?

Seadh

Feuch an toir thu sùil air a’ cheangal gu h-ìosal

Modal COFDM Relay Repeater airson inneal-sgaoilidh bhidio gun uèir UAV drone agus cuidhteas Vcan1870

COFDM Relay repeater for wireless video transmitter and receiver — Ath-chraoladh COFDM Relay airson inneal-sgaoilidh bhidio gun uèir agus cuidhteas

7. Am b’ urrainn dhomh tomhas dàta de chugallachd a chuir thugam airson 4/6/8 Cùisean MHz? Mar eisimpleir, airson QPSK, 1/2CR, 1/32GI what threshold reception RX's input level (dBm)?

Sianal singilte a’ faighinn cugallachd:

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

-98+/-1dbm aig QPSK 6MHZ,
Mheudaich cugallachd 3dbm nuair a gheibh thu le antennas dùbailte

8. A bheil am modal seo a’ toirt taic do bharrachd air 1.4G? mar eisimpleir 2.4G, 3G, neo 3.6G?

Tha, taic.

COFDM Video encoder modulator modal inneal-sgaoilidh 3.5G agus toradh deuchainn 4G.

9. Far am faod mi an UDP player luchdadh a-nuas? Tha sinn a’ moladh Splayer_v4.2_2020.6.6 a bhios sinn a’ cleachdadh gu tric.

Bidh am firmware bunaiteach cuidhteas a’ toirt taic do chluicheadair RTSP, is fheàrr le cuid de luchd-dèiligidh cluicheadair UDP, as urrainn dhuinn a thabhann cuideachd, then RTSP player doesn't support. （Chan urrainn dha RTSP agus UDP ach aon den dà firmware a thaghadh）

Feuch an luchdaich thu sìos aig a’ cheangal gu h-ìosal.

Splayer_4.2_2020.6.6

https://drive.google.com/file/d/1ihzUhfnx2Wo3zLO8UAs1aUQeLswonJD-/view?usp=sharing

Splayer_4.3_2022.10.22

https://drive.google.com/file/d/1PQc-LZ55qGnjeMsjkHYSloHfY3NEUsGH/view?usp=drive_link

Cluicheadair UDP saor an asgaidh: Suidheachadh splayer airson sruth beò

10. An urrainn dhut bogsa meatailt a thabhann gus bòrd glacadair COFDM a dhìon?

Seadh, thoir sùil air an dealbh gu h-ìosal.

long range Wireless Video Transmitter and Receiver for Camera drone — Tar-chuir bhidio gun uèir raon fada agus cuidhteas airson drone camara

Tha ceist agad fhathast?

Feuch an cuir thu fios thugainn airson tuilleadh fiosrachaidh.

Cuir do Cheist

Mar a dh’ atharraicheas tu cuir a-steach bhidio HDMI no CVBS tro àithne UART AT?

Mar a nì thu ùrachadh air glacadair bhidio COFDM

Mar a nì thu ùrachadh air bòrd modulator encoder bhidio drone COFDM

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

Ro-shealladh

Chan eil lèirmheas a dhèanamh.

A 'chiad ath-bhreithneachadh "COFDM Modulator Demodulator Module Encoder Decoder HDMI Cur a-steach CVBS AV AES 256 Sruth FHD RF” Sguir dhen fhreagairt

107625

Inneal a 'Chlàir	ATSD $(mimo), $(gi), $(Àireamhachadh ìre tar-chuir siostam tar-chuir gun uèir COFDM), $ (reul-bhad), $(freq(KHz)), $(bw(KHz)), $(tx1_gain), $(tx2_gain)_ eisimpleir: ATSD0,1,0,0,800000,8000,86.0,86.0_
paramadair	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(kHz) 200000~2700000(200MHz~2.7GHz, 1Ceum KHz) RC900 Carrier center Frequency(kHz) 750000~930000(750MHz ~ 930MHz, 1Ceum KHz) RCB Channel bandwidth bw(KHz) 2000~8000(2MHz ~ 8 MHz, 1Ceum KHz) RCB Channel bandwidth bw(KHz) 2000~8000 (2MHz ~ 8 MHz, 1Ceum KHz) Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB stepping Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB stepping
Return Value	mar eisimpleir: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
Nota	Suidhich àithne, sàbhail nuair a bhios cumhachd dheth. Different Bandwidths, Guard geala Ìos-, Convolution code rates, Data rate calculation formulas corresponding to constellations Air interface rate Rate(Àireamhachadh ìre tar-chuir siostam tar-chuir gun uèir COFDM) Àireamhachadh ìre tar-chuir siostam tar-chuir gun uèir COFDM (BandWidth(MHz) * 8.0/7.0) / (1+GI) * 1512/2048Àireamhachadh ìre tar-chuir siostam tar-chuir gun uèir COFDM(Àireamhachadh ìre tar-chuir siostam tar-chuir gun uèir COFDM) Àireamhachadh ìre tar-chuir siostam tar-chuir gun uèir COFDM * 188/204. Taking 8MHz bandwidth as an example, different guard intervals, convolution code rates, data rates corresponding to constellations and required receiving signal-to-noise ratios $C:\Users\timyep\AppData\Roaming\Tencent\Users\157871537\QQ\WinTemp\RichOle\E0XEBCD_M4WD[M1BWR$}TK4.png$

27km 110km NLOS FAQ

As teotha HDMI latency ultra ìosal FAQ

Modal tar-chuir bhidio gun uèir

Bòrd Modal AI SDK

Modal DVB-T2

Modal ISDB-T

Bòrd còdaidh HDMI

Encoder Modulator Decoder Module Module Configuration Stiùireadh COFDM AT 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

Set Input Sources Command (switch HDMI / CVBS-steach)

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

3. I tried to set – B bandwidth (kHz) and E bit rate (Mbps). When I set E, the new value does not apply. Mar sin. 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?

COFDM Modulator Demodulator Module Encoder Decoder HDMI Cur a-steach CVBS AV AES 256 Sruth FHD RF

COFDM Modulator Demodulator Module Encoder Decoder HDMI Cur a-steach CVBS AV AES 256 Sruth FHD RF

Sealladh taobh eile

Modal COFDM Encoder, CVBS / HDMI-steach, Toradh IP

Buannachd modal COFDM Encoder:

Modal tar-chuir COFDM

Luchdaich a-nuas COFDM modulator-demodulator dàta

An dreach mu dheireadh den bhòrd TX RX

Ceistean Cumanta

Tha ceist agad fhathast?

Ro-shealladh

A 'chiad ath-bhreithneachadh "COFDM Modulator Demodulator Module Encoder Decoder HDMI Cur a-steach CVBS AV AES 256 Sruth FHD RF” Sguir dhen fhreagairt

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