COFDM DVB-T H265 SDI Encoder Decoder

We need devices, to receive the information on Full HD camera videos with SDI (Serial Data Interface) on the line and Encode information in H.265 standard. Compressed data must be transmitted in either DVB-T (Digital Video Broadcasting terrestrial) or DVB-S standard. The analog output of the designed module can accept both I and Q signals, as well as modulated signals.

Q: Does your SDI Video Encoder support TSI Input / Izlaz?

A: Our existing encoding board to modulation board transmits data through the network port. Rather than the TSI interface you mentioned. This does not affect the use of the transmitter to the receiver. This is an internal interface of the transmitter.

Q: Do your encoder decoder boards support 525 i50 to 1080 P60 on the video format?

A: Now our SDI video encoder boards support HD: 720p @ 23.98Hz/24Hz/25Hz/29.97Hz/30Hz/ 50Hz59.94Hz/60Hz and 1080p @ 23.98Hz/24Hz/25Hz/29.97Hz/30Hz/50Hz/59.94Hz/60Hz. It does not support 525 i50 video format, is it ok？

Q: Does your SDI COFDM DVB-T H265 SDI Encoder RF output power support 0~10dBm？

A: Your output frequency point from 400Mhz to 2800Mhz required is very wide.
It is difficult to achieve 0~10dBm output under such a wide frequency point, and adding a Power Amplifier on the board will increase power consumption and heat (you also mentioned that there is no need for a fan for heat dissipation).
Are you willing to agree to our existing -3 to -10dBm output and then add your own PA (pojačalo)?

Q: What is the dimension of your COFDM DVB-T H265 SDI Encoder?

Do you have a special dimension request? Our existing size is 70x45mm.

A: Our existing video encoder and decoder boards can meet your project needs.
My engineer’s biggest worry is that your company, as a member of the broadcast and television industry has relatively high requirements for image video quality.
Our video encoding board will perform lossy compression for low latency. Can you take a set of existing samples to test and confirm the image quality? If you think our samples can meet your company’s requirements, we will redesign and draw the board according to your company’s requirements.

Q: Could you provide more information about VBR?

By applying video to the TX, the VBR parameter will change over time and is not a static value. Could you provide more information about this?

A: VBR is the video encoding bit rate at the transmitter. Since the video picture changes dynamically, VBR is of course variable, but it fluctuates around the encoding bit rate set by the transmission system: 7.81*0.8=6.248Mbps.

Q: Despite having flash storage on my receiver, REC OFF and No Storage are displayed on the screen. Why is this happening?

You said in the description: ključ2: switch button for video recording, short press to change its status. The receiver will automatically check the storage device (micro SD card or USB disk, priority SD card) after powering on and start to record video when the storage device is inserted. Just press the button to stop or record again.

A: The receiving system fails to detect the USB flash drive. The USB flash drive needs to be formatted to a format that our system can recognize.

Q: Both B1 and B2 are zero. This indicates that there is a 0 % Bite error rate!!! Which range of these parameters is acceptable?

A: The occurrence of a bit error rate may cause problems with the video image. When the bit error rate is very small, it will not affect the video image effect.

Q: Can I customize the programmer screen contents?

A: The display content of the configuration panel (programmer) is not open to customers for modification.

Q: Why isn’t the S2 channel programmed? It appears that the second tuner is not functioning at the moment.

A: S2 refers to receiving antenna 2, which can work normally. Frequency and bandwidth are same s1 and s2.

Q: Why the latency I calculated is huge? It’s around 470 ms.

In your the description coming: The default normal features of our receiver module can be paired with our H.265 transmitter module. The HD video latency from its inputting of the transmitter to the HDMI screen displaying of the receiver is about 200ms to 250ms.

A: The delay we tested was around 250ms. How did youtest it? The delay way we tested, please check the Youtube video link.

Q: How much latency does your SDI encoder transmitter and decoder receiver module have?

I remember you said you optimized the protocol for better latency. As I do not use your fast H.264 latency (130 ms) how much latency should we have on my setup?

A: You confirmed that you needed to support H265, but not H264 low latency mode. To achieve low latency mode, the receiver must be changed to another receiver hardware, and the corresponding firmware must be burned before shipment.

Q: Can I use your COFDM receiver to get the normal DVB-T TV channel?

You said you changed the video protocol for better latency in TX. Can I use your RX as a commercial DVB-T? how can I receive the normal DVB-T channel?

A: If you really want to use it as normal DVB-T receiver, we have to upgrade another firmware. (remove the encryption on the encoder and decryption on the decoder).

Q: How can I use your OSD menu function on the COFDM receiver?

In your description coming:
The receiver module also includes DVR record functionality with a Micro SD card or USB disk. The receiver module also enables video streaming over USB for remote Android device decoders like Smartphones or Android PAD. This allows multiple remote viewers to monitor the same video
simultaneously. The receiver module also supports display characters string on the video display screen with the video together in OSD mode.

A: Vidjeti OSD online documentation.

Q: How can I turn on the AES encryption? Where should I enter the key?

A: The configuration panel can edit and change the password.

Q: Indicate the bow text picture question:

A: This optional function is required by other products (the network port function is used to connect to a two-way wireless link). Please ignore it in your application.

Q: What is the time delay of the UART data on the one-way transmission?

For UART data from TX to RX, is the data processed through the encoding process or transmitted in real time? I require real-time data transfer.

A: The data and video are sending together via wireless cofdm package. So the delay are the same with video.

Q: For transmitter. Is possible to change GI and FEC and another parameter according to your table in the description?

A: Da.

Q: What is the exact power at this point from 1350 do 1450 MHz? I need this information to design a PA.

The maximum output of the 1350~1450 frequency band is around -10±2dBm. It is recommended to design the PA based on -15dBm input. Our transmitter can be adjusted down to -15dBm.

Q: Does your programmer has the function of the reset the factory restore?

If I change any parameters of any side like frequency or GI or FEC or video bandwidth, how can I reset all parameters in reset factory mode? I am new to this board, and I need to change some parameters to achieve my desire. But I’m afraid of changing the default pieces of information.

A: Our TX / RX programmer dones’t have a factory reset feature.