Kimpok Analog Transmitter KP-T1245

Kimpok KP-T1245 Analog VTX Transmitter 1.2 GHz / 1.3 GHz 4.5W
Kimpok KP-T1245 is a high-power analog video transmitter built for FPV drones, long-range flying, off-road adventures, recreational use, racing setups, and aerial filming projects. Operating in the 1.2-1.3 GHz band, this compact VTX delivers up to 4.5W of output power, giving hobbyists a strong and stable video link where signal performance really matters.
Designed for demanding FPV builds, the KP-T1245 combines powerful transmission, 16 selectable channels, and active cooling in one compact housing. The built-in aluminum heatsink and fan help maintain stable operation at higher power levels, while IRC protocol support allows convenient remote channel and power adjustment through OSD. If you are looking for a serious analog VTX for your FPV setup, this model is a practical and capable choice.
- Analog video transmitter for the 1.2-1.3 GHz band
- Up to 4.5W maximum output power
- 5 power levels: PIT, 25mW, 200mW, 2W, and 4.5W
- 16 working channels across two frequency bands
- Wide DC 7-30V input voltage
- DC 5V output for compatible accessories
- IRC protocol support for remote power and channel control
- Built-in cooling fan and aluminum heatsink
- SMA 50 Ohm antenna connector
- Compact size: 48.5 × 35 × 21.5 mm
Up to 4.5W Output Power with Adjustable Transmission Levels
The standout feature of the Kimpok KP-T1245 is its high 4.5W output power. This makes it a great fit for FPV configurations where a stronger analog video signal is needed. At the same time, users can easily match the transmitter power to the actual flying conditions thanks to multiple selectable power modes.
Lower settings such as 25mW and 200mW work well for bench setup, testing, or shorter flights. The 2W and 4.5W modes are better suited for more demanding environments where stronger signal performance is required. PIT mode helps reduce transmission output during setup, which is especially useful before takeoff or while working on the bench.
| Power Level | Output | Current Draw at 12V | Recommended Use |
|---|---|---|---|
| Level 0 | PIT | 140 mA ± 20 mA | Setup and pre-flight configuration |
| Level 1 | 25mW | 410 mA ± 30 mA | Short flights, testing, and reduced interference |
| Level 2 | 200mW | 460 mA ± 40 mA | Short- to mid-range flying |
| Level 3 | 2W | 800 mA ± 50 mA | Stronger FPV video transmission |
| Level 4 | 4.5W | 1.15 A ± 50 mA | Demanding long-range and field setups |
16 Channels Across Two Frequency Groups
Kimpok KP-T1245 offers 16 operating channels within the 1080-1360 MHz range, split into two frequency groups. This gives you more flexibility when matching the transmitter to your receiver, reducing interference, and fine-tuning your FPV setup for the local flying environment.
Band and channel selection is handled using the BAND/CH button. A green LED indicates the selected frequency group, while a blue LED shows the active channel. It is a simple and practical solution that lets you check settings quickly without extra accessories.
| Band | CH1 | CH2 | CH3 | CH4 | CH5 | CH6 | CH7 | CH8 |
|---|---|---|---|---|---|---|---|---|
| Band A | 1080 MHz | 1120 MHz | 1160 MHz | 1200 MHz | 1240 MHz | 1280 MHz | 1320 MHz | 1360 MHz |
| Band B | 1080 MHz | 1120 MHz | 1160 MHz | 1200 MHz | 1258 MHz | 1280 MHz | 1320 MHz | 1360 MHz |
Active Cooling and Temperature Protection
The KP-T1245 analog transmitter is equipped with an aluminum heatsink and a built-in cooling fan. This is especially important at higher power levels, where the unit can heat up during video transmission. Active cooling helps support stable performance and keeps the electronics working in safer operating conditions.
The transmitter also features temperature protection, which is particularly useful during longer ground setup sessions or in installations with limited airflow. For best results, leave enough space around the module during installation so the fan and heatsink can dissipate heat effectively.
- Built-in fan for active cooling support
- Aluminum heatsink improves heat dissipation
- Temperature protection helps improve operating safety
- Designed to handle high output power operation
- Free airflow around the module is recommended during installation
Kimpok KP-T1245 Technical Specifications
| Model | KP-T1245 |
|---|---|
| Device Type | Analog video transmitter VTX |
| Operating Band | 1.2-1.3 GHz |
| Frequency Range | 1080-1360 MHz |
| Channels | 16 |
| Output Power | PIT / 25mW / 200mW / 2W / 4.5W |
| Input Voltage | DC 7-30V |
| Output Voltage | DC 5V |
| Modulation | FM |
| Frequency Control | PLL |
| Frequency Stability | ±100 KHz typical |
| Frequency Accuracy | ±200 KHz typical |
| Signal-to-Noise Ratio | > 55 dBc |
| Antenna Connector | SMA 50 Ohm |
| Video Input Level | 1V ± 0.2Vp-p |
| Video Signal | CVBS, typically 1Vp-p at 75 Ohm |
| Control Protocol | IRC |
| Operating Temperature | -10°C to +60°C |
| Dimensions | 48.5 × 35 × 21.5 mm |
| Weight | Approx. 38.8 g |
What’s Included and Connection Overview
The Kimpok KP-T1245 comes with the basic accessories needed for installation in an analog FPV video transmission system. The product set includes the transmitter, a 1.2G antenna, and a connection cable for convenient integration into your build.
- 1 × Kimpok KP-T1245 1.2 GHz 4.5W analog VTX transmitter
- 1 × 1.2G antenna
- 1 × 6P 1.0 connection cable with plug
| Port | Function |
|---|---|
| DC IN | DC 7-30V power input |
| GND | Ground |
| DATA | Remote control signal input, supports IRC protocol for channel and power adjustment |
| 5V OUT | DC 5V power output |
| GND | Ground |
| Video IN | CVBS video signal input |
| Antenna Port | 1.2G SMA antenna connector |
Before powering on the transmitter, make sure the RF antenna is properly installed and that the supply voltage and polarity are correct. For better range, it is worth using antennas with a good VSWR and suitable gain. Please note that the surface of the transmitter may become hot during operation, so avoid touching the unit directly while it is transmitting.












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