2-3Ghz COFDM DVB-T H264 H265 解碼器 1080p 60FPS 接收器

一位客戶提到了他的需求

我有興趣購買 COFDM 具有解碼 H.265 視訊能力的視訊接收單元, 我要求它滿足接收和解碼的規格如下:

H.265 COFDM 1080/60p 接收器在 DVB-T 上運行，採用 16QAM 調變方案，頻率範圍為 2 到 2.25 GHz 並採用 16QAM 調製 1/32 保護間隔.

我將使用 h.265 (HEVC) 編碼器格式, 這也將允許我使用漸進幀速率. 1080 50/60p

一個2-3GHz COFDM DVB-T H.264/H.265 解碼器 1080p 60FPS 接收器 是一款專門針對高清視訊接收和解碼而設計的無線視訊傳輸設備. 它整合了多種先進技術，實現可靠, 低延遲, 在充滿挑戰的環境中提供高品質的視訊串流.

標準 DVB-T 中解調的頻率範圍或 DVB-T2 接收器通常跨越 170 兆赫至 860 百萬赫, 涵蓋廣泛的數位電視訊號. 由於實施了技術優化, 系統的最大支援頻率範圍已增加至 930 兆赫.

因為頻率在 2-3 GHz 範圍需要使用 下變頻器, 並且因為分集 DVB-T 或 DVB-T2 接收器始終包含兩個 RF 輸入, 通常需要兩個降頻轉換器.

DVB-T 的編碼支持
MPEG-2 (H.262): 這是 DVB-T 最初設計時的主要編碼標準，並廣泛應用於早期數位電視廣播.

H.264/AVC (MPEG-4部分 10): 隨著科技的發展, DVB-T透過規範擴展支援H.264以提高壓縮效率 (需要設備和服務提供者的支持).

No support for H.265/HEVC: The DVB-T standard was developed before the launch of H.265, so it does not natively support this coding format.

H.265/HEVC supporter: DVB-T2
The upgraded standard DVB-T2 (released in 2008) supports more efficient coding, including H.265/HEVC, and is suitable for HD and UHD content transmission.

DVB-T2 is significantly better than DVB-T in spectrum efficiency, anti-interference ability and compression performance, and is suitable for scenarios where bandwidth needs to be saved.

Here is our models to meet the demand.

If the transmitter and receiver use products from different brands, the encoding and decoding between them may not be decoded by the receiver if the encoding board uses a special encoding method or private code, such as AES128 encryption. Or it may cause a large delay. We recommend that customers use our encoder (發射機) 和解碼器 (接收者).

Q1: To replace the 2-2.25 GHz範圍, does the down converter’s frequency coverage extend to encompass the broader 2-2.5 GHz範圍?

A1: Frequency down converter range can support 2-2.5Ghz.

Q2: I would like to request a frequency down converter that operates within the 5.9 GHz 至 6.4 GHz範圍, and I would appreciate receiving a cost estimate for such a unit.

A2: 對不起, our frequency down converter can not cover the frequency range 5.9Ghz to 6.4Ghz.

Q3: Does your DVB-T decoder RF antenna supports 12V output to power supply the frequency down converter?

A3: 對於某些帶有訊號增強器的天線，我們的 DVB-T 解碼器射頻天線只有 5V 60mA. 我們的降頻轉換器有12V外接電源. 您不需要射頻輸出 12V 為其供電.