Axisflying TERK Analog 3.3G 4W VTX FPV Transmitter Module, IRC TRAMP, 16CH 3170–3470MHz, SMA, 7–30V

Overview

The Axisflying TERK Analog 3.3G 4W VTX is a high‑power FPV transmitter module designed for long‑range flights. This VTX operates on the 3.17–3.47 GHz band with 16 channels and IRC TRAMP control. An aluminum alloy three‑layer shell with a large centrifugal fan ensures effective heat dissipation for stable, consistent RF output across all channels. Power levels are selectable from PIT, 25mW, 200mW, 2W, to 4W.

Key Features

• Designed for long‑range flights, up to 4W transmitter power with multi‑level adjustment.
• Efficient PA and power calibration to ensure power consistency across all channels.
• Customized digital PLL circuit, chip‑level integration, no frequency drift.
• Aluminum alloy three‑layer shell structure and large centrifugal fan for sufficient heat dissipation and stable RF output.

Specifications

General Characteristics

RF Output

Pin Port and Function Description

Buttons and LED Indicators

• BAND and channel control buttons: Long press for 2 seconds to switch channel groups. Green light flashes once for Channel A group; green light flashes twice for Channel B group. Set CH1: short press once and the blue light flashes once. Set CH2: short press twice and the blue light flashes twice, and so on for CH3–CH8.
• Power control button: Long press and hold the red light for more than 2 seconds to activate PIT mode. Short press once to flash the red light once for 25mW; twice for 200mW; three times for 2W; four times for 4W.
• Blue LED (Channel indicator): flashes once for CH1, twice for CH2, three times for CH3, and so on.
• Green LED (Frequency group indicator): flash once for group A; flash twice for group B.
• Red LED (Power indicator): long bright for PIT; one flash 25mW; two flashes 200mW; three flashes 2W; four flashes 4W.

Precautions for use

• Confirm the RF output antenna is installed properly before powering on, otherwise the module may be burned out.
• Before connecting the power supply, ensure the correct voltage range and polarity to avoid burning out components.
• Use antennas with good standing wave ratio and gain to achieve longer transmission distance.
• During image transmission the surface may become hot; do not touch directly to avoid burns.

What’s Included

• 3.3G Antenna ×1PC
• 6P*1.0 Connecting cable with plug ×1PC

Details

Axisflying's TERK Analog VTX is a 3.3G 4W transmitter built for long-range flights, offering multi-level power adjustment. It includes efficient PA and power calibration for consistent output across channels, a digital PLL circuit to prevent frequency drift, and chip-level integration. Housed in an aluminum alloy three-layer shell with a large centrifugal fan, it ensures effective heat dissipation and stable transmitting power. Key features include 4W output, optimized thermal management, and reliable performance for demanding flight conditions.

Axisflying TERK Analog 3.3G 4W VTX, dimensions 48x32x20mm, with VIDEO, GND, 5V OUT, DATA ports.

TERK Analog 3.3G 4W VTX: 7-30V input, 5V output, IRC TRAMP, 3170-3470MHz, 16 channels, FM, PLL, ±100kHz stability, >55dBc SNR, SMA antenna, 1V video input, -10°C to +60°C, IRC control, 40g, 48×32×19mm.

RF output specifications for Axisflying TERK Analog 3.3G VTX, listing channel frequencies in two bands, power levels from 0 to 4 (up to 4W), corresponding dBm values, and current consumption at 12V.

TERK Analog 3.3G 4W VTX interface details: wiring diagram, voltage specs, and safety tips for safe installation, optimal performance, and damage prevention during operation.

Pin functions include DC input, ground, data, 5V output, video input, antenna port, channel and power controls, and LED indicators for channel, frequency group, and power levels. Supports IRC protocol, CVBS video, and 3.3G SMA antenna.

Accessory: 3.3G antenna and 6P*1.0 connecting cable included. Safe and enjoyable flight wished.