FrSky TANDEM X18 & X18S Manual

Manual for the FrSky TANDEM X18 & X18S dual-band telemetry radio with ETHOS operating system.


FrSky TANDEM X18 & X18S Manual - cover page
Brand
FrSky
Category
Other Electronics
Document type
User Manual
Language
English
Pages
2
File format
PDF
File size
3.9 MB
Published
10 November, 2026
Updated
10 November, 2026
MD5 checksum
1535D618D51CC7DB0516010C42064E72

About this manual

FrSky TANDEM X18 & X18S is a dual-band telemetry radio with an ETHOS operating system and a built-in TANDEM RF system. It supports ACCST D16, ACCESS, and TD receivers, and includes a rear Lite version module bay for external devices.

Specifications listed include dimensions of 200*192*95mm, weight of 687g without battery or 820g with battery, up to 24 channels, and a 480*320 backlit touchable LCD. The manual also covers hardware layout, switch positions, navigation controls, model creation, and Ethos Suite updates.

What's inside

  • Specifications
  • Features
  • Hardware
  • ETHOS Operating System
  • TD-ISRM RF Module
  • Ethos Suite
  • Create the model
  • Model Setup Procedure-Internal Module
  • Layout Switch
  • Navigation Controls

Specifications

Dimension200*192*95mm (L*W*H)
Weight687g (Battery Excl.) / 820g (Battery Incl.)
Operating SystemETHOS
Internal RF ModuleTANDEM
Number of ChannelsUp to 24 channels
Operating Voltage Range6.5~8.4V (2S Li-battery)
Operating Temperature-10°C~60°C (14°F~140°F)
Operating Current[email protected] (typ.)
Charging Current≤1A ±200mA
USB Adaptor Voltage5V+0.2V
USB Adaptor Current>2.0A
Backlit touchable LCD resolution480*320
CompatibilityACCST D16 & ACCESS & TD receivers
Internal NAND FLASH128MB (X18) / 512MB (X18S)
Battery compartment size87*41*19.5mm (L*W*H)

Frequently asked questions

What bootloader version is required to use Ethos Suite?

The radio bootloader must be version 1.2.0 or newer.

What is the battery compartment size?

The battery compartment size is 87*41*19.5mm (L*W*H).

How much internal NAND flash does each model have?

The X18 has 128MB and the X18S has 512MB.

How many channels are supported?

Up to 24 channels are supported.

Download PDF (3.9 MB)

More FrSky Manuals


View all FrSky manuals →