Modiwl Encoder Decoder Modiwl Modiwl Cyfarwyddiadau Ffurfweddu Paramedr COFDM AT 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:

fersiwn	dyddiad	Disgrifiad
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. Am fanylion, please refer to the introduction of the following commands.

Users can configure the parameters of the module through the configuration serial port (lefel TTL, 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 testun, er enghraifft:

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

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

fformat	ATDR_
paramedr	Nac oes
defnyddio	for the integrated system to check whether the serial port is connected and identify the connected modules.
Gwerth dychwelyd	RCB returns the “device profile” string SUE1 returns “ATDRSUE1 OK” string SHD1 returns “ATDRSHD1 OK” string
sylw	gorchymyn ymholiad

Set Device Command

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

Set Gain Command

fformat	ATSG$( tx1_gain),$( tx1_gain)_ Enghraifft: ATSG85.0,85.0_
paramedr	tx1_gain: trosglwyddydd 1 ennill tx2_gain: trosglwyddydd 2 ennill
defnyddio	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 (trosglwyddydd)
Gwerth Dychwelyd,	Enghraifft: ATSG85.0,85.0_set gain 85.000000 85.000000 iawn
sylw	gosod gorchymyn, power off will not save.

Set Modulation Mode command

fformat	ATSM$(gi), $(Cymarebau amgodio convolutional ffurfweddadwy), $(cytser)_ Enghraifft: ATSM1,1,2_
paramedr	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
defnyddio	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 (trosglwyddydd)
Gwerth Dychwelyd	Enghraifft:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, iawn
sylw	gosod gorchymyn, power off will not save.

Get Device Status Command

fformat	ATGD_
paramedr	Nac oes
defnyddio	query the current number of transmit antennas, egwyl gard, convolution code rate, number of constellations, transmit frequency, lled band, gain parameters (trosglwyddydd)
Gwerth Dychwelyd	Enghraifft: ATGD_ SISO, GI:1 /16, CR: 1/2, MOD: QPSK, freq: 800000KHz, bw: 8000KHz, tx1_gain: 86.000000 tx2_gain: 86.000000 iawn
sylw	gorchymyn ymholiad

Set Encoder Command

fformat	ATSE$(llc),$(rt),$(bitrate) ,$(gop),$(sain)_ Enghraifft: ATSE0,0,0.0,0,0_
paramedr	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. 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 enable
defnyddio	Used to set encoding parameters (trosglwyddydd)
Gwerth Dychwelyd	Enghraifft:ATSE0, 0,0.0,0,0_ DULL:0,RT:0,bitrate: 0.0Mbps,gop:0,sain:0,iawn
sylw	gosod gorchymyn, save when power is off.

Get Encoder Command

fformat	ATGE_
paramedr	Nac oes
defnyddio	querying encoding parameters (sending end)
Gwerth Dychwelyd	Enghraifft:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,sain:0,aes:0, iawn
sylw	Query command AES means the current encryption status: 0 disable; 1 enable

Get Input Command

fformat	ATGI_
paramedr	Nac oes
defnyddio	query the current camera input parameters (trosglwyddydd)
Gwerth Dychwelyd	Enghraifft:ATGI_input_size: 1080p, input_rate: 60fps, sensor_type: hdmi,iawn
sylw	gorchymyn ymholiad

Set Input Command

fformat	ATSI$(input_size),$(input_rate)_ Enghraifft: ATSI1080,25_
paramedr	1. Input resolution input_size: 0 gadewch i'r system ganfod; >0 specify input size 2. Input frame rate input_rate: 0 gadewch i'r system ganfod; > 0 specify input fps
defnyddio	To specify the input resolution and frame rate to meet some special signal sources, or some special application needs (trosglwyddydd)
Gwerth Dychwelyd	Enghraifft: ATSI1080,25_ Input_size:1080p,input_rate: 25fps, iawn
sylwadau	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

fformat	ATSO$(output_size),$(output_rate)_ Enghraifft: ATSO720,30_
paramedr	1. trosglwyddydd: encoding output resolution output_size: 0 equal to input_size; >0 specify output size 2. derbynnydd: HDMI output resolution (720, 1080) 3. trosglwyddydd: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (fps) 4. derbynnydd: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60)
defnyddio	1. trosglwyddydd: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction 2. derbynnydd: used to configure the resolution and frame rate of HDMI output
Gwerth Dychwelyd	Enghraifft: ATSO720,30_ output_size: 720p, output_rate: 30fps, iawn
sylwadau	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.

Gosod Gorchymyn Ffynonellau Mewnbwn (newid HDMI / mewnbwn CVBS)

fformat	ATSU$(vin),$(ain)_ Enghraifft: ATSU0, 1_
paramedr	1. Dewis mewnbwn fideo VIN: 0 gadewch i'r system ganfod; 1 gorfodi mewnbwn CVBS; 2 gorfodi mewnbwn hdmi/SDI 2. Dewis mewnbwn sain AIN: 0 gadewch i'r system ganfod; 1 mewnbwn analog grym
defnyddio	Wedi'i ddefnyddio i fodloni gofynion cais penodol (Enghraifft: Fideo mewnbwn HDMI/SDI, sain mewnbwn MIC)
Gwerth Dychwelyd	Enghraifft: ATSU0, 1_ ATSU0,1 Iawn
sylw	gosod gorchymyn, pŵer-off arbed.

Get User Command

fformat	ATGU _ Enghraifft: ATGU_
paramedr	Nac oes
defnyddio	To query user-specific configuration
Gwerth Dychwelyd	Enghraifft: ATGU_ ATGU0,1 OK
sylw	gorchymyn ymholiad return parameter description please refer to the ATSU command

Set Receiver Command

fformat	ATSR $(freq), $(bw ), $(llc), $(cvbs)_ Enghraifft: ATSR320000,6000,0,0_
paramedr	1. DR2C carrier frequency freq(KHz) 200000~860000(200MHz ~ 860MHz, 1Cam KHz) 2. DR900 carrier center frequency freq(KHz) 200000~1600000(200MHz~1.6GHz, 1Cam KHz) 3. DR2C channel bandwidth bw(KHz) 2000~8000(2MHz ~ 8MHz, 1Cam KHz) 4. DR900 channel bandwidth bw(KHz) 3200~8000(3.2MHz ~ 8MHz, 1Cam KHz) 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
defnyddio	To set the receiver parameter
Gwerth Dychwelyd	example: ATSR320000,6000,0,0_ ATSR320000,6000,0,0 OK
sylw	gosod gorchymyn, save when power is off.

Get Receiver Command

fformat	ATGR_
paramedr	Nac oes
ATGR_	the receiving end parameter
Gwerth Dychwelyd	Enghraifft: ATGR_ ATGR320000,6000,0,aes:0,cvbs:0 iawn
sylw	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

fformat	ATGB_
paramedr	Nac oes
defnyddio	querying the bit error rate and signal strength of the dual antennas at the receiving end
Gwerth Dychwelyd	Enghraifft: ATGB_ ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 iawn
sylwadau	1. Query commands 2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% i 100.0% 3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 i 100 4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock)

Set Password Command

fformat	ATSP$(cyfrinair), $(cyfrinair)_ Enghraifft: ATSP123456, 123456_
paramedr	AES key password: 6-digit password (ASCII) AES key password: 6-digit password (ASCII) (repeat it for confirmation)
defnyddio	Used to set the AES key of the transceiver (trosglwyddydd a derbynnydd)
Gwerth Dychwelyd	Enghraifft: ATSP123456_ ATSP123456 OK
sylw	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

fformat	ATST$(cyfradd baud), $( parity)_ Enghraifft: ATST115200,0_
paramedr	1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200 2. Check Code: 0: Dim; 1: Odd; 2: Even
defnyddio	Used to set the baud rate and parity bit of the serial port for data transparent transmission
Gwerth Dychwelyd	Enghraifft: ATST115200,0_ ATST115200,0 OK
sylwadau	Set command

Get Data Transfer Command

fformat	ATGT_
paramedr	Nac oes
defnyddio	Used to query the baud rate and check code
Gwerth Dychwelyd	Enghraifft: ATGT_ ATGT115200,0 OK
sylwadau	Query command

Set IP Address Command

fformat	ATSIP$(ip), $(ip)_ Enghraifft: ATSIP192.168.1.215,192.168.1.215_
Paramedrau	Local IP address Local IP address (repeat to confirm)
defnyddio	Used to set the receiver IP address
Gwerth Dychwelyd	Enghraifft: ATSIP_192.168.1 .215,192.168.1.215_ ATSIP192.168.1.215 OK
sylwadau	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

fformat	ATGIP_ Enghraifft: ATGIP_
paramedr	Nac oes
defnyddio	i gwestiynu cyfeiriad IP cyfredol y pen derbyn
Gwerth dychwelyd	Enghraifft: ATGIP_ ATGIP192.168.0.215 IAWN
sylw	gorchymyn ymholiad

OSD Overlay Protocol

fformat	ATOSD$(idx), $(x), $(ac), $(str)_ Enghraifft:ATOSD0,40,20,height: 100m_
paramedr	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)
defnyddio	on the video screen.OSD information
Gwerth dychwelyd	Nac oes
sylwadau	1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 picsel, 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

fformat	ATSAD$(freq),$(adjust) _ Enghraifft:ATSAD700000,2.5_
paramedr	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
swyddogaeth	Specify and adjust the value for the wireless gain setting using by ATSD cmd
adborth	Enghraifft: ATSAD700000,2.5_ freq:700000,adjust:2.50 iawn
Sylwadau	Setting command is still valid when stopping power or resetting.

Get Gain To Adjust

fformat	ATGAD[$(freq)]_ Enghraifft:ATGAD700000_
paramedr	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.
swyddogaeth	Inquiry adjust the value for wireless gain setting using ATSD cmd
adborth	Enghraifft: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 iawn
Sylwadau	Inquiry command.

Serial Port Utility software download

https://www.alithon.com/downloads

Cwestiynau Cyffredin

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 y 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 (ennill) 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. Felly. the E setting is only for monitoring of available bitrate? if I wish to change the E (Bitrate) I have to change only B (lled band)? 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.
Yn ddiofyn, 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.

Hidlo

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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 categorïau: COFDM, Modiwl TX RX, Unffordd Uncyfeiriad Tags: cofdm, demodulator cofdm, Un ffordd

COFDM Modulator Demodulator Modiwl Encoder Decoder HDMI CVBS AV Mewnbwn AES 256 FHD RF ffrydio

Tabl Cynnwys

Golygfa ochr arall

Modulator Demodulator Module Encoder Decoder HDMI CVBS AV Input AES 256 FHD RF streaming parameter configuration board — COFDM Modulator Demodulator HDMI CVBS Modiwl Encoder Decoder HDMI CVBS AV Mewnbwn AES 256 Bwrdd ffurfweddu paramedr ffrydio FHD RF

Modiwl Encoder COFDM, CVBS / mewnbwn HDMI, Allbwn IP

Composite CVBS input IP RJ45 Ethernet output Ultra-low latency encoder board, HDMI CVBS Encoder — Mewnbwn CVBS cyfansawdd IP RJ45 Ethernet allbwn Bwrdd amgodiwr latency ultra-isel, Amgodiwr CVBS HDMI

Am Fwy o fanylion am y bwrdd amgodiwr COFDM, ewch yma

Mantais modiwl COFDM Encoder:

Cefnogaeth uchaf amgodio sain a fideo hwyrni H.265/H.264 hynod-isel 1080P@60 cipio ac amgodio fideo amser real
Mewnbwn sain a fideo HDMI neu AV, ar ôl amgodio, allbwn porthladd Ethernet neu Allbwn i fodiwl diwifr, gellir ffurfweddu cyfradd didau amgodio fideo yn ddeinamig
Cefnogi mewnbwn sain ac allbwn datgodio sain
Cefnogwch ddau fideo (HDMI + AV) amgodio mewnbwn cydamserol (opsiwn, y rhagosodiad yw amgodio HDMI neu AV, dewiswch un o ddau ffynhonnell mewnbwn). )
UI gwe neu porth cyfresol UART gorchymyn AT ar gyfer rheoli cyfluniad

HDMI CVBS composite SDI video input encoder board digital IP ethernet output H264 H265 module board — Bwrdd amgodiwr mewnbwn fideo cyfansawdd HDMI CVBS SDI allbwn digidol IP ethernet bwrdd modiwl H264 H265

Modiwl trosglwyddydd COFDM

COFDM Wireless video transmitter module RCB board — COFDM modiwl trosglwyddydd fideo di-wifr bwrdd RCB

Change RF connector from IPEX to MMCX for COFDM wireless video transmitter encoder modulator board — Newid cysylltydd RF o IPEX i MMCX ar gyfer bwrdd modiwleiddiwr amgodiwr trosglwyddydd fideo di-wifr COFDM

Dadlwythiad taflen ddata modulator-demodulator COFDM

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Y fersiwn olaf o'r bwrdd TX RX

TX: V6.5.6p

RX: 4.1.2p

Cwestiynau Cyffredin

1. Beth ddylwn i ei wneud pan welais nad yw un modiwl Tx yn cynhyrchu pŵer allbwn RF?

COFDM-Transmitter-Module — COFDM-Trosglwyddydd-Modiwl

Cwestiwn 1: A fyddech cystal â dweud wrthyf ran rif y gydran hon, rydym yn ceisio dod o hyd i localy a gwirio. ateb 1: Mae'n anwythiad o'r enw LOH32PN2R2NNC.

COFDM-Transmitter-Module-no-tx output power — COFDM-Trosglwyddydd-Modiwl-dim-tx pŵer allbwn

Awgrymu Pwyntiau Gwirio: Os yw cerrynt cyflenwad pŵer y bwrdd yn dda ond nid oes allbwn RF, efallai y gydran isod TC1-1-13MX+ yn cael ei niweidio yn gyffredinol.
Er mwyn osgoi difrod i'r ddyfais hon yn ystod cludiant (mae'r ddyfais ei hun yn gymharol uchel), fe wnaethom archebu amddiffyniad glud coch ar gyfer y ddyfais hon pan wnaethom ei gludo.

COFDM Video Data Transmitter module — Modiwl Trosglwyddydd Data Fideo COFDM

Mae'r peiriannydd hefyd yn awgrymu eich bod yn gwirio i weld a yw'r cebl yn rhydd neu mewn cysylltiad gwael.
Ceisiwch ailosod y cebl FPC sy'n cysylltu'r ddau fwrdd
Gallwn ddarparu darnau sbâr os ydych chi'n siŵr pa un.

2. A allwch chi gynnig y ffeil gorchymyn UART AT i mi ar gyfer y model hwn?

Cadarn

Gwiriwch y ddolen isod.

Modiwl Encoder Decoder Modiwl Modiwl Cyfarwyddiadau Ffurfweddu Paramedr COFDM AT Command

3. Sut mae'r trosglwyddydd a'r derbynnydd Fideo COFDM hwn yn cefnogi camera IP?

1. Nid yw'n hawdd cysylltu ag IPC ar gyfer a cyswllt COFDM un ffordd. Mae gennym fodel H264, sydd wedi'i gysylltu â mewnbwn IPC trwy ehangu'r porthladd rhwydwaith, ond mae gofynion ar gyfer modelau IPC (ni ellir cysylltu pob model o IPC yn dda â chysylltiadau COFDM), rydym wedi profi IPCs o Hikvision, Dahua, a Xiongmai, a chanfuwyd fod effaith cysylltiad o Hikvision yn eithaf delfrydol.

2. Mae'n amhosibl cael gwared yn uniongyrchol ar y Amgodiwr HDMI CVBS a chysylltwch y Camera IP â bwrdd Trosglwyddydd COFDM. Mae angen dulliau technegol arbennig i wireddu cysylltiad COFDM unffordd â IPC.

3. Y ffordd orau yw argymell defnyddio ein trosglwyddydd trosglwyddo delwedd dwy ffordd, sy'n cefnogi'r camera IP yn uniongyrchol.

4. Os oes rhaid i'r cwsmer ddefnyddio bwrdd trosglwyddydd COFDM i gefnogi'r camera IP, mae dau bwynt i roi sylw iddynt.

5. Mae'r pwynt cyntaf yn broblem dechnegol. Mae angen i ni ddefnyddio dull arall i ganiatáu i gysylltiadau COFDM un cyfeiriad gael eu defnyddio gyda IPC.

6.Os ydych yn ystyried IPC o safbwynt lleihau costau, you don't need to consider it. Oherwydd bod y bwrdd amgodio a'r bwrdd datgodio yn dal yn angenrheidiol, ni ellir arbed y gost.

7. The second point is the customer's usage habit, nad yw bellach yn ddull cyswllt dwy ffordd traddodiadol. Gallant weld Fideo Camera IP a hyd yn oed reoli PTZ y Camera IP trwy'r dudalen we neu feddalwedd PC ochr PC (Gorchmynion UART AT).

8. Oherwydd y model hwn mae cyswllt diwifr yn ddolen unffordd COFDM; nid oes data gwrthdro (trosglwyddiad unffordd yn unig; ni ellir trosglwyddo data o'r derbynnydd i'r trosglwyddydd); 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. Mae hon yn broblem y bu llawer o gwsmeriaid yn ei hesgeuluso ar y dechrau ac yn ddiweddarach yn cwyno amdani ar ôl ei defnyddio.

10. So we don't recommend that the client choose a one-way COFDM transmitter and receiver for the IP camera. Mae gennym ateb gwell ar gyfer y Camera IP drwy dau drosglwyddydd cyswllt fideo.

4. A fyddech cystal â rhoi'r C/N Gofynnol i mi (BER=2x10-4 ar ôl Viterbi) ar gyfer gwahanol y lled band 2, 4, 6, ac 8 Mhz o ddolen fideo HDMI a ddefnyddiwn?

1. Ar hyn o bryd, dim ond dau baramedr o gryfder signal a chyfradd gwall didau y mae'r derbynnydd yn eu darparu, ac nid oes unrhyw baramedr C/N

2. Pa baramedrau sydd angen i chi eu haddasu yn ôl gwahanol led band? Os yw'n ffrwd cod fideo, bydd y bwrdd amgodio trosglwyddydd ei hun yn cyfrifo'r gyfradd cod ffrwd fideo briodol yn awtomatig yn ôl y paramedrau diwifr a ddefnyddir ar hyn o bryd (lled band, GI, CR, etc.), a darganfyddir y gyfradd cod fideo ar ôl newid y lled band gyda'r bwrdd paramedr yn addasu'n awtomatig.

cofdm video transmitter parameter configuare tool — teclyn ffurfweddu paramedr trosglwyddydd fideo cofdm

3. cwestiwn, Os yw ansawdd ein camera yn ddigon da i'r ddau 4 MHz a 8 lled band MHz. Yn yr achos hwn, A ddylai'r cwsmer ddewis 4 MHz neu 8 MHz?

ateb: Mae ein llwythi COFDM unffordd yn defnyddio lled band diwifr 4Mz yn ddiofyn, sy'n cyfateb i gyfradd didau fideo o 3.12Mbps, sydd ddigon i 1080p; Os caiff ei newid i lled band diwifr 8MHz o dan yr un amodau, mae'r gyfradd didau fideo yn dyblu i 6.24Mbps. Gall pob cwsmer ddewis rhwng lled band diwifr 4MHz ac 8MHz, gellir ystyried hyd yn oed 6MHz hefyd.

4. cwestiwn: Pa un sy'n well ar gyfer y set tx + rx hon o olwg derbyn sensitifrwydd?

ateb: Ar gyfer cysylltiadau diwifr, gellir ystyried yn syml y bydd y sensitifrwydd derbyn yn uwch ar led band diwifr is. O safbwynt derbyn sensitifrwydd, 4MHz>6MHz>8MHz

5. Pa fersiwn HDMI sy'n safonol mewn mewnbwn Modulator?

HDMI 1.4

6. A oes gennych unrhyw Fodiwlau Ailddarlledwr Cyfnewid COFDM ar gyfer y Trosglwyddydd Fideo Di-wifr a'r Derbynnydd？

Cadarn

Gwiriwch y ddolen isod

Modiwl Ail-ddarlledwr Cyfnewid COFDM ar gyfer trosglwyddydd fideo diwifr UAV drone a derbynnydd Vcan1870

COFDM Relay repeater for wireless video transmitter and receiver — Ailadroddwr Cyfnewid COFDM ar gyfer trosglwyddydd fideo diwifr a derbynnydd

7. A allai anfon mesur data sensitifrwydd ataf ar gyfer 4/6/8 achosion MHz? Er enghraifft, ar gyfer QPSK, 1/2CR, 1/32GI what threshold reception RX's input level (dBm)?

Sianel sengl yn derbyn sensitifrwydd:

-97+/-1DBM yn QPSK 8MHz,

-98+/-1DBM yn QPSK 6MHZ,
Cynyddodd y sensitifrwydd 3dbm wrth dderbyn ag antenâu deuol

8. A yw'r modiwl hwn yn cefnogi dros 1.4G? er enghraifft 2.4G, 3G, neu 3.6G？

Ydw, cymorth.

COFDM Fideo amgodiwr modiwl trosglwyddydd modiwl canlyniad prawf 3.5G a 4G.

9. Ble alla i lawrlwytho'r chwaraewr CDU? Rydym yn argymell Splayer_v4.2_2020.6.6 a ddefnyddiwn yn aml.

Mae firmware diofyn y derbynnydd yn cefnogi chwaraewr RTSP, mae'n well gan rai cleientiaid chwaraewr CDU, y gallwn hefyd ei gynnig, then RTSP player doesn't support. （Gall RTSP a CDU ddewis un o'r ddau firmware yn unig）

Llwythwch i lawr o'r ddolen isod.

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

Chwaraewr CDU: Gosodiad Splayer ar gyfer llif byw

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

Cadarn, gwiriwch y llun isod.

long range Wireless Video Transmitter and Receiver for Camera drone — Trosglwyddydd Fideo Di-wifr ystod hir a Derbynnydd ar gyfer drôn Camera

Mae gennych gwestiwn o hyd?

Cysylltwch â ni am fwy o wybodaeth.

Anfonwch Eich Cwestiwn

How to switch HDMI or CVBS video input via the UART AT command?

How to upgrade the COFDM video receiver

How to upgrade the COFDM drone video encoder modulator board

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

adolygiadau

Nid oes unrhyw adolygiadau eto.

Byddwch y cyntaf i adolygu'r "COFDM Modulator Demodulator Modiwl Encoder Decoder HDMI CVBS AV Mewnbwn AES 256 FHD RF ffrydio” Diddymu ateb

107625

fformat	ATSD $(mimo), $(gi), $(Cymarebau amgodio convolutional ffurfweddadwy), $ (cytser), $(freq(KHz)), $(bw(KHz)), $(tx1_gain), $(tx2_gain)_ Enghraifft: ATSD0,1,0,0,800000,8000,86.0,86.0_
paramedr	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, 1Cam KHz) RC900 Carrier center Frequency(kHz) 750000~930000(750MHz ~ 930MHz, 1Cam KHz) RCB Channel bandwidth bw(KHz) 2000~8000(2MHz ~ 8MHz, 1Cam KHz) RCB Channel bandwidth bw(KHz) 2000~8000 (2MHz ~ 8MHz, 1Cam KHz) Transmitting antenna 1 gain tx1_gain 0.0~89.75dB, 0.25dB camu Transmitting antenna 2 gain tx2_gain 0.0~89.75dB, 0.25dB camu
Gwerth Dychwelyd	fel: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 iawn
Nodyn	Set command, save when power off. Different Bandwidths, cyfyngau Guard, Convolution code rates, Data rate calculation formulas corresponding to constellations Air interface rate Rate(Cymarebau amgodio convolutional ffurfweddadwy) Cymarebau amgodio convolutional ffurfweddadwy (Lled Band(MHz) * 8.0/7.0) / (1+GI) * 1512/2048Cymarebau amgodio convolutional ffurfweddadwy(Cymarebau amgodio convolutional ffurfweddadwy) Cymarebau amgodio convolutional ffurfweddadwy * 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 Cwestiynau Cyffredin

poethaf HDMI hwyrni isel iawn Cwestiynau Cyffredin

Modiwl Trosglwyddo Fideo Di-wifr

Bwrdd Modiwl AI SDK

Modiwl DVB-T2

Modiwl ISDB-T

Bwrdd Amgodiwr HDMI

Modiwl Encoder Decoder Modiwl Modiwl Cyfarwyddiadau Ffurfweddu Paramedr 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

Gosod Gorchymyn Ffynonellau Mewnbwn (newid HDMI / mewnbwn CVBS)

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

Cwestiynau Cyffredin

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 (ennill) 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. Felly. the E setting is only for monitoring of available bitrate? if I wish to change the E (Bitrate) I have to change only B (lled band)? Am I right?

COFDM Modulator Demodulator Modiwl Encoder Decoder HDMI CVBS AV Mewnbwn AES 256 FHD RF ffrydio

COFDM Modulator Demodulator Modiwl Encoder Decoder HDMI CVBS AV Mewnbwn AES 256 FHD RF ffrydio

Golygfa ochr arall

Modiwl Encoder COFDM, CVBS / mewnbwn HDMI, Allbwn IP

Mantais modiwl COFDM Encoder:

Modiwl trosglwyddydd COFDM

Dadlwythiad taflen ddata modulator-demodulator COFDM

Y fersiwn olaf o'r bwrdd TX RX

Cwestiynau Cyffredin

Mae gennych gwestiwn o hyd?

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