The FrSky Tandem X20 Series is a dual-band telemetry radio system, its development has drawn on valuable feedback from FrSky's extensive customer base, experience with previous radios.

The Tandem series introduces many new features such as a color touch screen display, underpinned by an ergonomic design that provides unprecedented comfort when held.

On the RF side, FrSky has introduced a powerful and reliable TD dual-band RF system, which features the advantages of the FrSky 900MHz and 2.4GHz in one combined RF system. The TD dual-band RF system is characterized by true simultaneous dual-band remote control with telemetry, and superb end-to-end 4ms latency performance. When combined with ETHOS, a completely new operating system, FrSky's Tandem X20 Series provides users with a powerful, intuitive, and flexible experience to enjoy across the entire world of RC.

With the optional IRX4 4-N-1 module, the Tandem X20S will work with a variety existing RC ptotocal including: Spektrum DMS2 & DMSX, Futaba S-FHSS and others.

The Tandem X20S comes in three faceplate colors: Red, Blue and Black. Please specify color in the comment section. Also,the x20S includes: carring case, gimbal protectors, rubber covers for switches and Neck Strap

SPECIFICATIONS:

Features:
AFHSS 2.4GHz technology
1024 Resolution
High Precision Quad Ball Bearing Gimbals
Digital Trim with Beep Sound
All Channel Servo Reversing
5th Channel AUX Switch for Retracts or Engine Cut
Elevon Mixing (Ch. 1 & 2)
V-Tail Mixing (Ch. 1 & 2)
ATV (Ch. 1 & 2)
Trainer Function (Student Only)

MFG Stock # 160240
Optic 5 2.4GHz Transmitter and Receiver Combo Includes Transmitter and Minima 6T Receiver. Dry system, transmitter requires 8AA Alkaline cells.

Discontinued by Manufacturer, sold out 

Capabilities:
Firmware Upgrade
Data Setting
Data Save & Load to PC
Data Reset
Auto Version Check
PC interface for Hitec 2.4GHz Telemetry Monitoring System (With optional Sensor Station & Sensors)

Current Applicable Models:
Receivers: Freedom 9, Optima 7 & 9
Transmitters: Optic 6 Sport, Aurora 9
Transmitter Module: Spectra 2.4 AFHSS Module
The HPP-22 requires an internet connection to download software and a USB Cable with mini-B connector for operation.

Web Address for sofware download is:
https://www.hitecrcd.com/tester/hpp_22.html

Moreover, this module works seamlessly with the Multi-module project on github and is based on an ARM microcontroller. All available protocols are included in serial mode, which utilizes a serial protocol to communicate with your transmitter without the need for any hardware modifications. However, it is recommended to update your transmitter's firmware to the latest version before selecting and binding the model protocol from the Model Settings menu. For telemetry-capable transmitters, the integration of telemetry is effortless with the transmitter firmware.

The FrSky Multi Protocol Module operates at a voltage range of 5-9V, with an operating current of <=180mA, and operates at a frequency of 2.4G ISM band. It has a high RF power of +22dBm and is equipped with an ARM CORTEX-M(128K ROM, 20K RAM) MCU. The module weighs 32g and comes with 1 MPM LITE TX Module in the package.