# TFSIK01: High-Performance UAV Telemetry Modem

The TFSIK01 is a UAV modem with dual antennas for strong signals and noise resistance, ensuring reliable long-range communication.

- **Seller:** [ThunderFly](https://lectronz.com/stores/thunderfly), Soběslav, Czechia
- **Price:** €174.87 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Drones, RS232/RS485, Technology
- **HS code:** 854370
- **Product page:** https://lectronz.com/products/tfsik01-high-performance-uav-telemetry-modem

## Options

**Antenna selection**

- Without Antenna
- 2.2 dBi  antenna kit [Add €54.00]
- 3 dBi antenna kit [Add €60.50] (0 left)

**Frequency Band**

- 433 MHz
- 868 MHz

**UART JST-GH high-flexible silicone cable**

- Without cable
- 15 cm UART cable with JST-GH [Add €8.10]
- 30 cm UART cable with JST-GH [Add €5.00]

**USB to serial converter with Pixhawk telemetry connectors**

- Without USB to serial converter
- TFUSBSERIAL01 - USB-C to serial converter [Add €21.00]

## Links

- [Documentation](https://docs.thunderfly.cz/avionics/TFSIK01/)
- [Code](https://github.com/ThunderFly-aerospace/SiK)
- [Design Files](https://github.com/ThunderFly-aerospace/TFSIK01)

## Images

![TFSIK01: High-Performance UAV Telemetry Modem](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MzQ4ODUsInB1ciI6ImJsb2JfaWQifX0=--04d5a8dcd132775dfbda9748da17b40993ab9d52/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJKUEciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--a1419a086f227676aca33a49760ac51e58b523e3/2024-05-16T21-3A15-3A42.253Z-Modem_pair.JPG)
![TFSIK01: High-Performance UAV Telemetry Modem](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MzQ4ODYsInB1ciI6ImJsb2JfaWQifX0=--fdde2ebc1f13728c5516840051c1dfdd4e6f7a91/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJKUEciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--a1419a086f227676aca33a49760ac51e58b523e3/2024-05-16T21-3A15-3A42.253Z-single_modem.JPG)
![TFSIK01: High-Performance UAV Telemetry Modem](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MzQ4ODcsInB1ciI6ImJsb2JfaWQifX0=--f9c66e19f2dd61b00cc2df09043c52bdd2e79e52/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJKUEciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--a1419a086f227676aca33a49760ac51e58b523e3/2024-05-16T21-3A15-3A42.253Z-TFSIK01A.JPG)
![TFSIK01: High-Performance UAV Telemetry Modem](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MzQ4ODgsInB1ciI6ImJsb2JfaWQifX0=--6eb5e7210f35c0a2d34b06523991f93b68fefcbd/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJKUEciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--a1419a086f227676aca33a49760ac51e58b523e3/2024-05-16T21-3A15-3A42.253Z-433MHz_antenna_kit.JPG)

## Description

TFSIK01 is a European-made high-end, open-source UAV telemetry modem designed for high-noise immunity and reliable RF-link. This modem, built on Si1060 chip with the latest Si4463 EZRadioPRO Transceiver, ensures optimal operation even in the presence of signal jammers. Perfect for UAV professionals, the TFSIK01 is your go-to for seamless and robust communication.

## Key Features

- **High Noise Immunity**: Operates reliably near out-of-band  signal jammers.
- **Dual Antenna Diversity**: Automatic antenna switch for optimal signal strength.
- **Lightweight & Compact**: Weighs under 20 grams without antennas.
- **High Data Rates**: Supports air data rates up to 250kbps.
- **Long Range**: Demonstrated range of several kilometers with a small whip antenna.
- **Advanced Protocols**: Includes MAVLink protocol framing, frequency-hopping spread spectrum (FHSS), and adaptive time division multiplexing (TDM).
- **Open Source**: Fully configurable with AT and RT commands. Compatible with Pixhawk via JST-GH UART link.
- Backward compatible with other SiK firmware-based modems
- **Multiple Frequency Bands**: Available in 433MHz and 868MHz, with custom frequencies upon request.

## Advanced Technologies

- **Si4463 Transceiver Chip**: User-selectable output power up to +20 dBm, RX sensitivity -124 dBm @ 1000 bps FSK.
- **MIMO 2x2 RX/TX**: Two antenna diversity with separate MCX connectors for RX and TX.
- **RF SAW filter & Low Noise Amplifier**: Ensures high noise immunity and long-range performance.

## Applications

- **UAV Command and Control**: Ideal for use in UAVs, paired with another SiK-based modem for ground control stations.
- **ROS2 Wireless Datalink**: Provides reliable, long-range communication for robotics, ensuring real-time responsiveness and easy integration with ROS and ROS2 systems.

## Why Choose TFSIK01?

The TFSIK01 modem offers unmatched performance and flexibility for UAV communication needs. Its robust design, advanced features, and open-source firmware make it a perfect choice for professionals. Plus, with support from ThunderFly, you can get customized solutions tailored to your specific requirements.

## What's Included

The components are listed for a single side of the telemetry link. You need to order a pair or use another SiK firmware-compatible modem to get a complete RF link.

- One TFSIK01 modem with RF shielding and housing 
- [TFUSBSERIAL01](https://docs.thunderfly.cz/avionics/TFUSBSERIAL01/) - USB-C to serial converter for ground control station connection (optional)
- 15cm serial cable with JST-GH connectors (optional)
- Antenna kit (optional)

> The product is assembled and ready to use.