Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions 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:

Verzija	Datum	Opis
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 razina, 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 tekst, na primjer:

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

Format	ATDR_
Parametar	Ne
Koristiti	for the integrated system to check whether the serial port is connected and identify the connected modules.
Povratna vrijednost	RCB returns the “device profile” string SUE1 returns “ATDRSUE1 OK” string SHD1 returns “ATDRSHD1 OK” string
Napomena	naredba upita

Set Device Command

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

Set Gain Command

Format	ATSG$( tx1_gain),$( tx1_gain)_ Primjer: ATSG85.0,85.0_
Parametar	tx1_gain: Odašiljač 1 dobiti tx2_gain: Odašiljač 2 dobiti
Koristiti	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 (odašiljač)
Return Value,	Primjer: ATSG85.0,85.0_set gain 85.000000 85.000000 u redu
Napomena	setting command, power off will not save.

Set Modulation Mode command

Format	ATSM$(gi), $(Konfigurabilna RF izlazna snaga), $(constellation)_ Primjer: ATSM1,1,2_
Parametar	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; Konstelacija: 0 QPSK; 1 QAM16; 2 QAM64
Koristiti	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 (odašiljač)
Return Value	Primjer:ATSM1,1,2_GI:1/16, CR:2/3, MOD: QAM64, u redu
Napomena	setting command, power off will not save.

Get Device Status Command

Format	ATGD_
Parametar	Ne
Koristiti	query the current number of transmit antennas, interval straža, convolution code rate, number of constellations, transmit frequency, propusnost, gain parameters (odašiljač)
Return Value	Primjer: ATGD_ SISO, vojnik:1 /16, CR: 1/2, MOD: QPSK, frekv: 800000KHz, bw: 8000KHz, tx1_gain: 86.000000 tx2_gain: 86.000000 u redu
Napomena	naredba upita

Set Encoder Command

Format	ATSE$(llc),$(rt),$(bitrate) ,$(gop),$(zvučni)_ Primjer: ATSE0,0,0.0,0,0_
Parametar	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. brzina prijenosa: 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
Koristiti	Used to set encoding parameters (Odašiljač)
Return Value	Primjer:ATSE0, 0,0.0,0,0_ NAČIN:0,RT:0,bitrate: 0.0Mbps,gop:0,zvučni:0,u redu
Napomena	setting command, save when power is off.

Get Encoder Command

Format	ATGE_
Parametar	Ne
Koristiti	querying encoding parameters (sending end)
Return Value	Primjer:ATGE_MODE:0, RT:0,bitrate:4.0Mbps,gop:10,zvučni:0,aes:0, u redu
Napomena	Query command AES means the current encryption status: 0 disable; 1 enable

Get Input Command

Format	ATGI_
Parametar	Ne
Koristiti	query the current camera input parameters (odašiljač)
Return Value	Primjer:ATGI_input_size: 1080p, input_rate: 60fps, sensor_type: hdmi,u redu
Napomena	naredba upita

Set Input Command

Format	ATSI$(input_size),$(input_rate)_ Primjer: ATSI1080,25_
Parametar	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
Koristiti	To specify the input resolution and frame rate to meet some special signal sources, or some special application needs (odašiljač)
Return Value	Primjer: ATSI1080,25_ Input_size:1080p,input_rate: 25fps, u redu
Opaske	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

Format	ATSO$(output_size),$(output_rate)_ Primjer: ATSO720,30_
Parametar	1. Odašiljač: encoding output resolution output_size: 0 equal to input_size; >0 specify output size 2. Prijamnik: HDMI output resolution (720, 1080) 3. Odašiljač: encoding output frame rate output_rate: 0 equal to input_rate; >0 specify output_rate (fps) 4. Prijamnik: HDMI output frame rate 720p supports frame rate (50, 60); 1080p supports frame rate (24, 25, 30, 50, 60)
Koristiti	1. Odašiljač: Used to specify the encoding output resolution and frame rate to meet the requirements of certain applications for zooming and frame reduction 2. Prijamnik: used to configure the resolution and frame rate of HDMI output
Return Value	Primjer: ATSO720,30_ output_size: 720p, output_rate: 30fps, u redu
Opaske	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 / ulaz CVBS)

Format	ATSU$(vin),$(ain)_ Primjer: ATSU0,1 _
Parametar	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
Koristiti	Used to meet specific application requirements (Primjer: HDMI/SDI input video, MIC input audio)
Return Value	Primjer: ATSU0,1_ ATSU0,1 OK
Napomena	setting command, power-off save.

Get User Command

Format	ATGU _ Primjer: ATGU_
Parametar	Ne
Koristiti	To query user-specific configuration
Return Value	Primjer: ATGU_ ATGU0,1 OK
Napomena	naredba upita return parameter description please refer to the ATSU command

Set Receiver Command

Format	ATSR $(frekv), $(bw ), $(llc), $(cvbs)_ Primjer: ATSR320000,6000,0,0_
Parametar	1. DR2C carrier frequency freq(KHz) 200000~860000(200MHz ~ 860MHz, 1KHz korak) 2. DR900 carrier center frequency freq(KHz) 200000~1600000(200MHz~1.6GHz, 1KHz korak) 3. DR2C channel bandwidth bw(KHz) 2000~8000(2MHz~8MHz, 1KHz korak) 4. DR900 channel bandwidth bw(KHz) 3200~8000(3.2MHz~8MHz, 1KHz korak) 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
Koristiti	To set the receiver parameter
Return Value	example: ATSR320000,6000,0,0_ ATSR320000,6000,0,0 OK
Napomena	setting command, save when power is off.

Get Receiver Command

Format	ATGR_
Parametar	Ne
ATGR_	the receiving end parameter
Return Value	Primjer: ATGR_ ATGR320000,6000,0,aes:0,cvbs:0 u redu
Napomena	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

Format	ATGB_
Parametar	Ne
Koristiti	querying the bit error rate and signal strength of the dual antennas at the receiving end
Return Value	Primjer: ATGB_ ATGB ber1:0.00% ber2:0.00% RSSI1 :54 RSSI2:53 Lock1:1 Lock2:1 u redu
Opaske	1. Query commands 2. Ber1 and ber2 respectively indicate the bit error rate of each antenna, ranging from 0.0% do 100.0% 3. RSSI1 and RSSI2 respectively indicate the signal strength of each antenna, ranging from 0 do 100 4. Lock1 and Lock2 respectively indicate the signal locking status of each antenna (1 Represents signal lock)

Set Password Command

Format	ATSP$(lozinka), $(lozinka)_ Primjer: ATSP123456, 123456_
Parametar	AES key password: 6-digit password (ASCII) AES key password: 6-digit password (ASCII) (repeat it for confirmation)
Koristiti	Used to set the AES key of the transceiver (odašiljač i prijemnik)
Return Value	Primjer: ATSP123456_ ATSP123456 OK
Napomena	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

Format	ATST$(broj bauda), $( parity)_ Primjer: ATST115200,0_
Parametar	1. Baud rate baud rate: 1200、2400、4800、9600、19200、38400、57600、115200 2. Check Code: 0: Nijedan; 1: Odd; 2: Even
Koristiti	Used to set the baud rate and parity bit of the serial port for data transparent transmission
Return Value	Primjer: ATST115200,0_ ATST115200,0 OK
Opaske	Set command

Get Data Transfer Command

Format	ATGT_
Parametar	Ne
Koristiti	Used to query the baud rate and check code
Return Value	Primjer: ATGT_ ATGT115200,0 OK
Opaske	Query command

Set IP Address Command

Format	ATSIP$(ip), $(ip)_ Primjer: ATSIP192.168.1.215,192.168.1.215_
Parametri	Local IP address Local IP address (repeat to confirm)
Koristiti	Used to set the receiver IP address
Return Value	Primjer: ATSIP_192.168.1 .215,192.168.1.215_ ATSIP192.168.1.215 OK
Opaske	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

Format	ATGIP_ Primjer: ATGIP_
Parametar	Ne
Koristiti	za upit o trenutnoj IP adresi primatelja
Povratna vrijednost	Primjer: ATGIP_ ATGIP192.168.0.215 OK
Napomena	naredba upita

OSD Overlay Protocol

Format	ATOSD$(idx), $(x), $(g), $(str)_ Primjer:ATOSD0,40,20,height: 100m_
Parametar	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)
Koristiti	on the video screen.OSD information
Povratna vrijednost	Ne
Opaske	1. The user specifies the x and y coordinates of the OSD display according to the maximum 1920×1080 piksela, 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

Format	ATSAD$(frekv),$(adjust) _ Primjer:ATSAD700000,2.5_
Parametar	wireless central working frequency： Frekv(KHz) 200000~2700000(200MHz~2.7GHz, step: 1KHz) Adjust the value(dB): ATSD cmd will subtract this value to set the wireless gain
Funkcija	Specify and adjust the value for the wireless gain setting using by ATSD cmd
Povratne informacije	Primjer: ATSAD700000,2.5_ freq:700000,adjust:2.50 u redu
Komentari	Setting command is still valid when stopping power or resetting.

Get Gain To Adjust

Format	ATGAD[$(frekv)]_ Primjer:ATGAD700000_
Parametar	wireless central working frequency： Frekv(KHz) 200000~2700000(200MHz~2.7GHz, step: 1KHz) When no parameter provides, it will list all the freq that have adjusted value.
Funkcija	Inquiry adjust the value for wireless gain setting using ATSD cmd
Povratne informacije	Primjer: ATGAD700000_ freq:700000,adjust:2.50 OK ATGAD_ freq:700000 750000 u redu
Komentari	Inquiry command.

Serial Port Utility software download

https://www.alithon.com/downloads

Pitanja

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

Reset the password to 000000 (one must not be missing) through the Parameter Configuration Panel Board.
or set it through the ATSP_command

2. I see that Gain is the output power of the transmitter. Please tell me the range of settings of this parameter. All setting level (dobit) 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. Tako. the E setting is only for monitoring of available bitrate? if I wish to change the E (brzina prijenosa) I have to change only B (propusnost)? 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

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COFDM modulator demodulator modul enkoder dekoder HDMI CVBS AV ulaz AES 256 FHD RF strujanje

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.

Šifra: Vcan1776 Kategorije: COFDM, TX RX modul, Jednosmjerni jednosmjerni Oznake: COFDM, cofdm demodulator, Jedan način

COFDM modulator demodulator modul enkoder dekoder HDMI CVBS AV ulaz AES 256 FHD RF strujanje

Sadržaj

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 ulaz, IP output

Composite CVBS input IP RJ45 Ethernet output Ultra-low latency encoder board, HDMI CVBS Encoder — Kompozitni CVBS ulaz IP RJ45 Ethernet izlaz Ploča kodera s ultraniskom latencijom, HDMI CVBS koder

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

COFDM Encoder module Advantage:

Ultra-niska latencija H.265/H.264 audio i video kodiranje maksimalna podrška 1080P@60 video snimanje i kodiranje u stvarnom vremenu
HDMI ili AV audio i video ulaz, nakon kodiranja, izlaz Ethernet porta ili izlaz na bežični modul, brzina prijenosa kodiranja videa može se dinamički konfigurirati
Podrška audio ulaz i audio dekodiranje izlaz
Podržava dva videa (HDMI + AV) simultano kodiranje ulaza (opcija, zadano je HDMI ili AV kodiranje, odaberite jedan od dva ulazna izvora). )
Web korisničko sučelje ili serial port UART AT command for configuration management

HDMI CVBS composite SDI video input encoder board digital IP ethernet output H264 H265 module board

COFDM transmitter module

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

COFDM modulator-demodulator datasheet download

COFDM demodulator Vcan1776RX-H264 datasheet

The last version of the TX RX board

TX: V6.5.6p

RX: 4.1.2p

FAQ

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. Odgovor 1: It is a inductance named LOH32PN2R2NNC.

COFDM-Transmitter-Module-no-tx output power

Suggest Check Points: If the power supply current of the board is well but there is no RF output, maybe the below component TC1-1-13MX+ is generally damaged.
In order to avoid damage to this device during transportation (the device itself is relatively high), we ordered red glue protection for this device when we shipped it.

The engineer also suggests that you check to see if the cable is loose or in poor contact.
Please try to replace the FPC cable connecting the two boards
We can provide spare parts if you're sure which one.

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

Naravno

Provjerite poveznicu u nastavku.

Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions COFDM AT Command

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

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

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

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

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

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

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

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

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

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

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

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

1. Trenutno, 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 (propusnost, vojnik, CR, itd), 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. Pitanje, If our camera quality is good enough for both 4 MHz i 8 MHz propusnost. U ovom slučaju, Should the customer choose 4 ili MHz 8 MHz?

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

Odgovor: 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？

Naravno

Provjerite poveznicu u nastavku

COFDM modul relejnog repetitora za bežični video odašiljač i prijemnik drona UAV Vcan1870

COFDM Relay repeater for wireless video transmitter and receiver — COFDM relejni repetitor za bežični video odašiljač i prijemnik

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

Single channel receiving sensitivity:

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

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

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

Da, podrška.

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

9. Gdje mogu preuzeti UDP player? Preporučujemo Splayer_v4.2_2020.6.6 koji često koristimo.

The receiver default firmware supports RTSP player, some clients prefer UDP player, which we also can offer, then RTSP player doesn't support. （RTSP and UDP can only choose one of the two firmware）

Molimo preuzmite na donjoj poveznici.

Splayer_v4.2_2020.6.6

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

Splayer_v4.3_2022.10.22

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

UDP Player: Splayer setting for living stream

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

Naravno, provjerite donju sliku.

long range Wireless Video Transmitter and Receiver for Camera drone

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Recenzije

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107625

Format	ATSD $(mimo), $(gi), $(Konfigurabilna RF izlazna snaga), $ (constellation), $(frekv(KHz)), $(bw(KHz)), $(tx1_gain), $(tx2_gain)_ Primjer: ATSD0,1,0,0,800000,8000,86.0,86.0_
Parametar	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; Konstelacija: 0 QPSK; 1 QAM16; 2 QAM64; RCB Carrier Center Frequency(kHz) 200000~2700000(200MHz~2.7GHz, 1KHz korak) RC900 Carrier center Frequency(kHz) 750000~930000(750MHz ~ 930MHz, 1KHz korak) RCB Channel bandwidth bw(KHz) 2000~8000(2MHz~8MHz, 1KHz korak) RCB Channel bandwidth bw(KHz) 2000~8000 (2MHz~8MHz, 1KHz korak) 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	kao što su:ATSD0,1,0,0,800000,8000,86.0,86.0_ SISO,vojnik: 1/16, CR:1/2, MOD: QPSK, frekv:800000KHz,bw:8000KHz,tx1_gain:86.000000 tx2_gain:86.000000 u redu
Bilješka	Set command, save when power off. Different Bandwidths, intervali Guard, Convolution code rates, Data rate calculation formulas corresponding to constellations Air interface rate Rate(Konfigurabilna RF izlazna snaga) Konfigurabilna RF izlazna snaga (Širina pojasa(MHz) * 8.0/7.0) / (1+vojnik) * 1512/2048Konfigurabilna RF izlazna snaga(Konfigurabilna RF izlazna snaga) Konfigurabilna RF izlazna snaga * 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$

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Encoder Modulator Decoder Demodulator Module Parameter Configuration Instructions 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 / ulaz 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

Pitanja

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 (dobit) 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. Tako. the E setting is only for monitoring of available bitrate? if I wish to change the E (brzina prijenosa) I have to change only B (propusnost)? Am I right?

COFDM modulator demodulator modul enkoder dekoder HDMI CVBS AV ulaz AES 256 FHD RF strujanje

COFDM modulator demodulator modul enkoder dekoder HDMI CVBS AV ulaz AES 256 FHD RF strujanje

Another side view

COFDM Encoder module, CVBS / HDMI ulaz, IP output

COFDM Encoder module Advantage:

COFDM transmitter module

COFDM modulator-demodulator datasheet download

The last version of the TX RX board

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