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Video Transmitter 1.2/1.3GHz, VTX-1G3SE
Brand: Matek
Product Code: VTX-1G3SE
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Video Transmitter 1.2/1.3GHz, VTX-1G3SE
Description
1. Product Summary
1.1. Product Description
The Matek VTX-1G3SE is a professional 1.2 GHz / 1.3 GHz video transmitter designed for FPV, UAV, and long-range video transmission applications. It operates on the 1.2–1.3 GHz frequency band and provides multiple power output levels for optimal signal performance and range. The transmitter supports NTSC and PAL video formats, features Tramp protocol control via UART, and offers wide-range input voltage with compact, durable construction.
1.2. Product Features
- Supports 1.2 GHz / 1.3 GHz ISM frequency bands.
- Selectable power levels: Pit mode (0.1 mW) / 25 mW / 200 mW / 800 mW.
- Wide input voltage range: 6–36 V DC (2–8S LiPo compatible).
- Channel versions available:
- US 2-channel version: 1258 MHz / 1280 MHz.
- International 9-channel version.
- Supports button control and LED indicators.
- UART/Tramp protocol for remote VTX control via flight controller CMS.
- NTSC / PAL video format compatibility.
- SMA RF antenna connector.
- Compact and lightweight — approx. 9 g (without antenna).
2. Technical Specifications
Table 2-1. VTX-1G3SE Technical Parameters
| Parameter | Specification |
|---|---|
| Frequency Band | 1.2 GHz – 1.3 GHz |
| Output Power | 0.1 mW / 25 mW / 200 mW / 800 mW |
| Input Voltage | 6 – 36 V DC (2–8 S LiPo) |
| Channels | 2 (US version) / 9 (International version) |
| Control Interface | Button + LED / UART (Tramp protocol) |
| Video Format | NTSC / PAL |
| Antenna Connector | SMA |
| Dimensions | Approx. 36 mm × 25 mm × 10 mm |
| Weight | ≈ 9 g (without antenna) |
3. Applications
- FPV Drones: Long-range and low-interference analog video transmission.
- Fixed-wing Aircraft: Extended range with 1.3 GHz link for aerial surveying or filming.
- Commercial UAVs: Reliable video feed for inspection and monitoring missions.
- Testing Platforms: Research and development projects requiring 1.2/1.3 GHz analog links.
4. Important Notes
- Operating on 1.2/1.3 GHz frequencies may require an amateur radio license depending on the country.
- The US 2-channel version is locked and cannot be modified to 9 channels.
- Do not power the VTX without an antenna connected — it may cause permanent RF damage.
- Ensure sufficient cooling and airflow when operating at higher power levels.
- Check regional regulations before sale or operation (different frequency allocations in EU / USA / Asia).
5. Integration and Usage Guide
5.1. Installation and Setup
- Connect video input from camera to the VTX video pin.
- Connect 6 – 36 V DC power source to VTX power pads (observe polarity).
- Attach SMA antenna securely before powering the transmitter.
- Use onboard button or flight controller CMS (UART Tramp control) to select frequency and power level.
- Confirm channel and power level via LED indicators.
5.2. Recommended Practices
- Mount VTX away from receiver antennas to reduce RF interference.
- Use appropriate filtering on power lines to prevent noise in video feed.
- For long-range setups, pair with high-gain directional antennas for best results.
- Perform range and signal testing before each flight.
6. Practical Summary
The Matek VTX-1G3SE is a robust and high-performance analog video transmitter operating in the 1.2 GHz – 1.3 GHz range. With multiple power levels, UART control, and wide voltage support, it offers reliable long-distance transmission for professional FPV pilots, industrial UAVs, and research platforms. Its design prioritizes efficiency, integration flexibility, and signal clarity in challenging environments.
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