HD digital wireless image transmission transmitter

高清数字无线图传发射机ST220内置编码板、COFDM调制模块、小尺寸PA功率放大模块，整机采用CNC铝合金壳体，Ukuran kecil，ringan，传输分辨率高，发射距离远。

• 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、bandwidth nirkabel、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 kursi pitch 1,5 mm，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(Control-uart)，4PIN kursi pitch 1,5 mm，tingkat TTL 3.3V。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(Data-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 kursi pitch 1,5 mm，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。

Lampu indikator kerja：

Ringkasan

Itu ST220 HD Digital Wireless Image Transmission Transmitter adalah kompak, high-performance device designed to deliver reliable wireless video transmission for professional applications. By integrating a built-in COFDM modulation module, sebuah H.265/H.264 video encoding board, dan sebuah small-size PA power amplifier module, the ST220 achieves stable long-distance video transmission in a rugged, paket ringan.

The transmitter adopts a CNC aluminum alloy housing, ensuring durability, excellent heat dissipation, and lightweight design suitable for airborne applications. Dengan dukungan untuk definisi tinggi (HD) and standard-definition (SD) video inputs, configurable transmission parameters, and multiple frequency bands, the ST220 offers a flexible solution for drone operations, field broadcasting, pengawasan, 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 mdtk in high-compression modes for bandwidth optimization.

Fitur Utama

• Modulasi COFDM: Memastikan kuat, stable transmission in both line-of-sight (KEHILANGAN) dan tidak saling berhadapan (NLOS) lingkungan.
• Pengkodean Video: Mendukung H.265 (HEVC) atau H.264 (AVC) pengkodean, with default transmission up to 1080P/I @ 60 fps.
• enkripsi: Bawaan Enkripsi AES-256 guarantees secure video and data links.
• Masukan Video Fleksibel: 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.
• Transparent Data Transmission: One-way transparent serial data channel (UART), configurable for TTL 3.3V atau RS232 levels, enabling simultaneous data communication along with video.
• Customizable Frequency: Wide range of selectable frequency bands between 200–860MHz, with configurable center frequency and fine-tuning step of 1 kHz.
• Transmission Power Options: Selectable 1 W (30 dBm) atau 2.5 W (34 dBm) RF output for extended range.
• Dukungan Audio: Embedded HDMI audio or analog stereo audio input (Mic/Line-in selectable).
• Desain Kasar: CNC-machined aluminum shell provides heat dissipation, daya tahan, and compactness.
• Kompak & Ringan: Ukuran 104.5 × 50 × 27 mm, weight less than 140 g, making it suitable for drone payloads.
• Parameter yang Dapat Dikonfigurasi: Modulation settings (lebar pita, coding rate, konstelasi), frekuensi kerja, 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, suitable for FPV, drone piloting, or real-time monitoring.

Spesifikasi teknis

Wireless Modulation & Penularan

• Modulasi: COFDM
• Bandwidth: Dapat disesuaikan dari 1 MHz ke 8 MHz
• Konstelasi: QPSK, 16QAM, 64QAM
• FEC (Koreksi Kesalahan Teruskan): 1/2, 2/3, 3/4, 5/6, 7/8
• Interval penjaga: 1/32, 1/16, 1/8, 1/4
• Configurable coding ratio: 2K

Frekuensi Kerja

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

Mengirimkan Kekuatan

• 1 W (30 dBm) atau 2.5 W (34 dBm) dapat dipilih

Video & Audio Processing

• Video Inputs: HDMI (HD) dan CVBS analog (SD)
• Supported Formats:
  • 1080P/I @ 60/50 fps
  • 720P @ 60/50 fps
  • SAHABAT (720×576 @ 50i)
  • NTSC (720×480 @ 60i)
• Pengkodean Video: H.265 / H.264
• Masukan Audio: HDMI embedded or analog audio (Mic-in/Line-in selectable)
• Format Audio: AAC, 16-bit stereo

Antarmuka

• Masukan HDMI: Standard HDMI port
• SD Video Input: 4-pin, 1.5 mm pitch connector
• Transparent Data UART: 3-pin, TTL 3.3V (bawaan), optional RS232
• Configuration Port: 4-pin, TTL 3.3V, compatible with parameter panel or PC connection
• Masukan Daya: Konektor XT30PW-M (DC 12V, 11–13V range)
• Antena: Konektor SMA (pria, inner pin)

Indikator

• LED Daya: Merah, always on when powered
• Tautan LED: Hijau, blinks during wireless transmission activity

Kekuasaan & Konsumsi

• Tegangan Pasokan: DC 12V (11–13V)
• Konsumsi:
  • ≤15 W @ 1 W RF output
  • ≤23 W @ 2.5 W RF output

Fisik

• Ukuran: 104.5 × 50 × 27 mm (excluding connectors and mounting points)
• Berat: <140 g

Performance with Receivers

• ST220 + SR300 Receiver:
  • Point-to-point H.265 transmission
  • Typical latency: 200–300 mdtk (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

Aplikasi

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

• Industri & Commercial UAVs: Long-distance wireless video backhaul for drones in mapping, inspeksi, dan survei.
• Siaran & Media: Wireless camera links for live events, olahraga, and news gathering.
• Keamanan & Penegakan hukum: Mobile video transmission for surveillance vehicles, operasi lapangan, or public safety drones.
• Pencarian & Operasi Penyelamatan: Reliable video feeds in disaster zones or remote areas.
• Pertahanan & Pengintaian: Tactical UAV or ground unit video transmission with secure AES-256 encryption.

Konfigurasi Opsional

• Pita Frekuensi: Customizable bands from 200–860 MHz.
• Pelabuhan Data: Configurable as TTL (bawaan) atau RS232.
• Video Input Priority: HDMI atau AV (factory-configurable).
• Dual-Video Input Mode: Optional dual-input encoding and transmission.
• Mengirimkan Kekuatan: 1 W (daya rendah) atau 2.5 W (kekuatan tinggi).
• Kompatibilitas Penerima: Compatible with SR110, SR200, SR300 models depending on latency and resolution needs.