HD dijital kablosuz görüntü aktarım vericisi

HD dijital kablosuz görüntü aktarım vericisi ST220 dahili kodlama kartı、COFDM modülasyon modülü、Küçük boyutlu PA güç amplifikatörü modülü，Tüm makine CNC alüminyum alaşımlı kabuğu benimser，küçük hacimli，hafif，Yüksek iletim çözünürlüğü，Uzun fırlatma mesafesi。

• COFDM调制。
• H265/H264视频编码，默认最高支持1080P/I @60fps。
• AES256加密。
• 支持非视距高速移动传输。
• 中心频点、kablosuz bant genişliği、传输码流等均可配置。

ST220主要技术规格

ST220发射机可配套SR300接收机、SR110接收机、SR200接收机使用。ST220发射机与SR300接收机点对点无线传输H265视频时，视频延迟一般在200~300ms之间(未包含相机自身延迟)。ST220发射机搭配SR110接收机，H264低延时模式传输时，视频延迟一般在50~130ms之间(未包含相机自身延迟)。

ST220发射机接口信号

ST220发射机

AV输入接口：

标清输入接口，4PIN 1,5 mm aralık soketi，音频支持Mic in或Line in输入(出厂时指定)。可通过配参面板设定PAL或NTSC制式。

CFG接口：

配置串口(Kontrol-uart)，4PIN 1,5 mm aralık soketi，TTL 3.3V seviyesi。其中的5V信号用于对接配参面板时给配参面板供电。

Data接口：

单向透传数据串口(veri-uart)，该串口数据会通过COFDM无线链路单向传输到对应接收机的数据串口上。3PIN 1,5 mm aralık soketi，默认出货为TTL 3.3V电平，也可在出货时指定设置为标准RS232电平串口。

çalışma ışığı：

Genel Bakış

The ST220 HD Digital Wireless Image Transmission Transmitter kompakt bir, high-performance device designed to deliver reliable wireless video transmission for professional applications. By integrating a built-in COFDM modulation module, BİR H.265/H.264 video encoding board, ve bir Küçük boyutlu PA güç amplifikatör modülü, the ST220 achieves stable long-distance video transmission in a rugged, hafif paket.

The transmitter adopts a CNC aluminum alloy housing, ensuring durability, excellent heat dissipation, and lightweight design suitable for airborne applications. Desteği ile yüksek çözünürlüklü (HD) and standard-definition (SD) video girişleri, configurable transmission parameters, and multiple frequency bands, the ST220 offers a flexible solution for drone operations, field broadcasting, gözetim, and other wireless video applications.

Paired with receivers such as the SR300, SR110, or SR200, the ST220 enables real-time video transmission with selectable latency modes. Depending on configuration, latency can be reduced to as low as 50–130 ms for critical low-delay applications or maintained at 200–300 ms in high-compression modes for bandwidth optimization.

Ana Özellikler

• COFDM modülasyonu: Sağlamlık sağlar, stable transmission in both line-of-sight (THE) ve görüş alanı dışında (NLOS) Ortamlar.
• Video Kodlama: Destekler H.265 (umut) veya H.264 (AVC) kodlama, with default transmission up to 1080P/I @ 60 fps.
• Şifreleme: Yerleşik AES-256 şifreleme guarantees secure video and data links.
• Esnek video girişi: Standard HDMI input for HD signals, and CVBS/analog input for SD video sources. Automatic input detection with HDMI preference, or configurable for AV priority. Optional dual-input encoding available.
• Şeffaf veri iletimi: One-way transparent serial data channel (UART), configurable for TTL 3.3V veya RS232 seviyeler, enabling simultaneous data communication along with video.
• Customizable Frequency: Wide range of selectable frequency bands between 200–860 MHz, with configurable center frequency and fine-tuning step of 1 kHz.
• Transmission Power Options: Seçilebilir 1 W (30 dBm) veya 2.5 W (34 dBm) RF output for extended range.
• Ses desteği: Embedded HDMI audio or analog stereo audio input (Mic/Line-in selectable).
• Sağlam Tasarım: CNC-machined aluminum shell provides heat dissipation, dayanıklılık, and compactness.
• Kompakt & Hafif: Boyut 104.5 x 50 x 27 mm, weight less than 140 g, making it suitable for drone payloads.
• Yapılandırılabilir Parametreler: Modülasyon ayarları (Bant genişliği, coding rate, takımyıldız), çalışma frekansı, and FEC ratios are fully adjustable via configuration tools.
• Low Latency Modes: When paired with compatible receivers, latency can be as low as 50 MS, FPV'ye uygun, drone piloting, veya gerçek zamanlı izleme.

Teknik özellikler

Wireless Modulation & Bulaşma

• Modülasyon: COFDM
• Bant genişliği: Ayarlanabilir 1 MHz'den 8 MHz
• takımyıldız: QPSK, 16QAM, 64QAM
• FEC (İleri Hata Düzeltme): 1/2, 2/3, 3/4, 5/6, 7/8
• Guard Aralığı: 1/32, 1/16, 1/8, 1/4
• Configurable coding ratio: 2K

Çalışma Frekansı

• Standard Bands:
  • 300–360 MHz
  • 350–400 MHz
  • 450–500 MHz
  • 520–560 MHz
  • 580–620 MHz
  • 680–720 MHz
  • 820–860 MHz
• özelleştirme: Other frequencies from 200–860 MHz available upon request
• Step size: 1 kHz configurable center frequency

İletim Gücü

• 1 W (30 dBm) veya 2.5 W (34 dBm) seçilebilir

Video & Ses işleme

• Video Girişleri: HDMI (HD) ve CVBS analog (SD)
• Supported Formats:
  • 1080P/I @ 60/50 fps
  • 720P @ 60/50 fps
  • PAL (720×576 @ 50i)
  • NTSC (720×480 @ 60i)
• Video Kodlama: H.265 / H.264
• Ses girişi: HDMI embedded or analog audio (Mic-in/Line-in selectable)
• ses Formatı: AAC, 16-bit stereo

Arayüzler

• HDMI Girişi: Standard HDMI port
• SD Video Input: 4-toplu iğne, 1.5 mm pitch connector
• Transparent Data UART: 3-toplu iğne, TTL 3.3V (varsayılan), • COFDM modülasyonu ve H.264/H.265 video sıkıştırma
• Configuration Port: 4-toplu iğne, TTL 3.3V, compatible with parameter panel or PC connection
• Güç girişi: • COFDM modülasyonu ve H.264/H.265 video sıkıştırma (DC 12V, 11–13V range)
• Anten: SMA konektörü (erkek, inner pin)

Göstergeler

• Güç LED: Kırmızı, always on when powered
• Bağlantı LED: Yeşil, blinks during wireless transmission activity

Güç & tüketim

• Besleme gerilimi: DC 12V (11–13V)
• tüketim:
  • ≤15 W @ 1 W, RF çıkış
  • ≤23 W @ 2.5 W, RF çıkış

Fiziksel

• Boyut: 104.5 x 50 x 27 mm (excluding connectors and mounting points)
• Ağırlık: <140 g

Performance with Receivers

• ST220 + SR300 Receiver:
  • Point-to-point H.265 transmission
  • Typical latency: 200–300 ms (excluding camera delay)
• ST220 + SR110 Receiver:
  • Low-latency H.264 transmission mode
  • Typical latency: 50–130 ms (excluding camera delay)
• ST220 + SR200 Receiver:
  • Standard COFDM reception with configurable settings

Uygulamalar

The ST220 HD digital wireless image transmission transmitter is designed for professional video transmission zorlu ortamlarda. Its combination of compact design, high-resolution support, and configurable transmission options make it suitable for:

• Sanayi & Commercial UAVs: Long-distance wireless video backhaul for drones in mapping, muayene, ve araştırma.
• Yayın & medya: Wireless camera links for live events, Spor Dalları, and news gathering.
• Güvenlik & Kolluk kuvvetleri: Mobile video transmission for surveillance vehicles, saha işlemleri, or public safety drones.
• Arama & Kurtarma operasyonları: Reliable video feeds in disaster zones or remote areas.
• Savunma & Keşif: Tactical UAV or ground unit video transmission with secure AES-256 encryption.

İsteğe bağlı yapılandırmalar

• Frekans aralıkları: Customizable bands from 200–860 MHz.
• Veri Bağlantı Noktası: Configurable as TTL (varsayılan) or RS232.
• Video Input Priority: HDMI veya (factory-configurable).
• Dual-Video Input Mode: Optional dual-input encoding and transmission.
• İletim Gücü: 1 W (düşük güç) veya 2.5 W (yüksek güç).
• Alıcı Uyumluluğu: Compatible with SR110, SR200, SR300 models depending on latency and resolution needs.