# FlySky FS-TH9X transmitter: specs

> Hand-held 2.4 GHz radio transmitter using AFHDS 2A, with a 128x64 LCD and a PPM data port on a phone jack.

[HTML version](https://soldr.ai/docs/components/flysky-fs-th9x)

[Docs](https://soldr.ai/docs) / [Components](https://soldr.ai/docs/components)

Hand-held 2.4 GHz radio transmitter using AFHDS 2A, with a 128x64 LCD and a PPM data port on a phone jack.

Every value cites its sourcePinout not published

[Buy on Compoden](https://compoden.com/products/radio-transceiver-9-channel-flysky-fs-th9x)

## Specs

| Spec | Value | Source |
|---|---|---|
| Channels | 8 | source Specifications |
| Wireless frequency | 2.4 GHz | source Specifications |
| Wireless protocol | AFHDS 2A | source Specifications |
| Transmit power | <20 dBm | source Specifications |
| Channel resolution | 4096 | source Specifications |
| Battery | 8 x 1.5 V AA | source Specifications |
| Low voltage alarm | Below 9 V | source Specifications |
| Data port | Phone jack (PPM) | source Specifications |
| Display | STN transflective LCD, 128 x 64 dot matrix | source Specifications |
| Temperature range | -10 to +60 degC; humidity 20% to 95% | source Specifications |
| Size and weight | 190 x 112 x 257 mm; 690 g | source Specifications |

## Power

| | Value | Source |
|---|---|---|
| Supply | 8 x 1.5 V AA cells | source Specifications |

## Pinout
We don't publish a pin table for this part: no official source we could verify gives one. Check the labels printed on your module, and see the notes below.

FlySky&#x27;s current FS-TH9X specifications list 8 channels with AFHDS 2A; if your unit&#x27;s manual or box shows a different channel count or protocol, follow your manual.

## Build with it
Project ideas for the FlySky FS-TH9X transmitter. Each link opens Soldr with the prompt filled in; Soldr assigns the pins, checks power and shows how to wire every part.

- [Stick monitor](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20six-channel%20stick%20monitor%20with%20an%20Arduino%20Uno%20that%20reads%20an%20AFHDS%202A%20receiver%20paired%20with%20a%20hand-held%20transmitter): Both parts are AFHDS 2A per their maker pages. The receiver runs from the Uno&#x27;s 5 V pin (4.0 V to 6.5 V range); the maker gives no output signal level, so measure it before using a 3.3 V board. Bench only, no motors connected. Learning project.
- [PPM channel viewer](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20channel%20viewer%20with%20an%20Arduino%20Uno%20that%20reads%20the%20PPM%20output%20of%20an%20AFHDS%202A%20receiver): The iA6B maker page lists AFHDS 2A, a 4.0 V to 8.4 V supply and PPM among its data ports, so the Uno&#x27;s 5 V pin can power it. The maker gives no output signal level; measure it before connecting. Bench only, no motors connected. Learning project.
- [Compact PPM monitor](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20compact%20PPM%20frame%20monitor%20with%20an%20Arduino%20Nano%20that%20reads%20an%20AFHDS%202A%20receiver%20and%20prints%20the%20channel%20times): The iA6B page lists AFHDS 2A, 4.0 V to 8.4 V supply and PPM output; the Nano&#x27;s 5 V pin is inside that range. The maker gives no output signal level; measure it first. Bench only, no motors connected. Learning project.

## Common mistakes

- Plugging in a charger. The maker lists the charging port as N/A, so it is built for 8 AA cells (source: [link](https://www.flysky-cn.com/th9x-canshu), Specifications).
- Pairing it with a receiver on another protocol. The maker names AFHDS 2A (source: [link](https://www.flysky-cn.com/th9x-canshu), Specifications).
- Counting on nine channels. The maker lists 8 channels (source: [link](https://www.flysky-cn.com/th9x-canshu), Specifications).

## Not covered by the official source

- The maker page lists no current draw, binding steps or pin table for the phone jack.
- Ideas stay on bench pulse reading because no output signal levels are documented.

## Sources

- [link](https://www.flysky-cn.com/th9x-canshu) (FlySky FS-TH9X specifications page)
- [link](https://www.flysky-cn.com/ia6b-canshu) (FlySky FS-iA6B specifications page, read earlier)