How to switch HDMI or CVBS video input via the UART AT command?
COFDM મોડ્યુલેટર ડિમોડ્યુલેટર મોડ્યુલ એન્કોડર ડીકોડર HDMI CVBS AV ઇનપુટ AES 256 FHD RF સ્ટ્રીમિંગ
COFDM મોડ્યુલેટર ડિમોડ્યુલેટર મોડ્યુલ એન્કોડર ડીકોડર HDMI CVBS AV ઇનપુટ AES 256 FHD RF સ્ટ્રીમિંગ
સામગ્રીનું કોષ્ટક
Another side view
COFDM Encoder module, CVBS / HDMI ઇનપુટ, IP output
For More details about the COFDM encoder board, please visit here
COFDM Encoder module Advantage:
- અલ્ટ્રા-લો લેટન્સી H.265/H.264 ઑડિઓ અને વિડિયો એન્કોડિંગ મહત્તમ સપોર્ટ 1080P@60 રીઅલ-ટાઇમ વિડિયો કૅપ્ચર અને એન્કોડિંગ
- HDMI અથવા AV ઑડિઓ અને વિડિયો ઇનપુટ, એન્કોડિંગ પછી, ઈથરનેટ પોર્ટ આઉટપુટ અથવા વાયરલેસ મોડ્યુલ માટે આઉટપુટ, વિડિઓ એન્કોડિંગ બીટ રેટ ગતિશીલ રીતે ગોઠવી શકાય છે
- ઓડિયો ઇનપુટ અને ઑડિઓ ડીકોડિંગ આઉટપુટ આધાર
- બે વિડિઓઝને સપોર્ટ કરો (HDMI + AV) એક સાથે ઇનપુટ એન્કોડિંગ (વિકલ્પ, ડિફૉલ્ટ HDMI અથવા AV એન્કોડિંગ છે, બે ઇનપુટ સોર્સિંગમાંથી એક પસંદ કરો). )
- વેબ UI અથવા સીરીયલ પોર્ટ UART AT આદેશ રૂપરેખાંકન વ્યવસ્થાપન માટે
COFDM transmitter module
COFDM modulator-demodulator datasheet download
COFDM demodulator Vcan1776RX-H264 datasheet
The last version of the TX RX board
TX: V6.5.6p
ગ્લટની: 4.1.2પી
FAQs
1. What should I do when I found one Tx module doesn't generate RF output power?
- Question1: Could you please tell me part number of this component, we try to find localy and check. જવાબ 1: It is a inductance named LOH32PN2R2NNC.
- 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?
શ્યોર
કૃપા કરીને નીચેની લિંક તપાસો.
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, અને 8 Mhz of HDMI video link we use?
cofdm video transmitter parameter configuare tool
1. હાલ, 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 (બેન્ડવિડ્થ, જીઆઇ, સીઆર, વગેરે), and the video code rate will be found after changing the bandwidth with the parameter board will automatically adapt.
3. પ્રશ્ન, If our camera quality is good enough for both 4 મેગાહર્ટઝ અને 8 મેગાહર્ટઝ બેન્ડવિડ્થ. આ બાબતે, Should the customer choose 4 મેગાહર્ટઝ અથવા 8 મેગાહર્ટઝ?
જવાબ: 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. પ્રશ્ન: Which is better for this tx+rx set from a receive sensitivity view?
જવાબ: 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, 4મેગાહર્ટઝ>6મેગાહર્ટઝ>8મેગાહર્ટઝ
6. Do you have any COFDM Relay Repeater Modules for the Wireless Video Transmitter and Receiver？
વાયરલેસ વિડિયો ટ્રાન્સમીટર અને રીસીવર માટે COFDM રિલે રીપીટર
શ્યોર
કૃપા કરીને નીચેની લિંક તપાસો
ડ્રોન UAV વાયરલેસ વિડિયો ટ્રાન્સમીટર અને રીસીવર Vcan1870 માટે COFDM રિલે રીપીટર મોડ્યુલ
7. Could send me a data measurement of sensitivity for 4/6/8 MHz cases? દાખ્લા તરીકે, for QPSK, 1/2સીઆર, 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
9. હું UDP પ્લેયર ક્યાંથી ડાઉનલોડ કરી શકું? અમે Splayer_v4.2_2020.6.6 ની ભલામણ કરીએ છીએ જેનો અમે વારંવાર ઉપયોગ કરીએ છીએ.
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）
કૃપા કરીને નીચેની લિંક પરથી ડાઉનલોડ કરો.
સ્પ્લેયર_v4.2_2020.6.6
https://drive.google.com/file/d/1ihzUhfnx2Wo3zLO8UAs1aUQeLswonJD-/view?usp=sharing
સ્પ્લેયર_v4.3_2022.10.22
https://drive.google.com/file/d/1PQc-LZ55qGnjeMsjkHYSloHfY3NEUsGH/view?usp=drive_link
10. Can you offer a metal box to protect the COFDM receiver board?
શ્યોર, કૃપા કરીને નીચેનું ચિત્ર તપાસો.
How to upgrade the COFDM video receiver
How to upgrade the COFDM drone video encoder modulator board
સમીક્ષા કરવા માટે "સૌ પ્રથમ બનોCOFDM મોડ્યુલેટર ડિમોડ્યુલેટર મોડ્યુલ એન્કોડર ડીકોડર HDMI CVBS AV ઇનપુટ AES 256 FHD RF સ્ટ્રીમિંગ”
સંબંધિત વસ્તુઓ
વિડિઓ ટ્રાન્સમીટર
હેન્ડહેલ્ડ વાયરલેસ રીસીવર 7 ઇંચ ટચ સ્ક્રીન COFDM રીસીવર ડિજિટલ વિડિઓ રીસીવર સાથે 7 ઇંચ મોનિટર
Original price was: $3,300.00.$1,999.00Current price is: $1,999.00.
વિડિઓ ટ્રાન્સમીટર
$699.00 – $824.00
Original price was: $50.00.$15.00Current price is: $15.00.
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