GEPRC LINKFLOW 915M ExpressLRS TX Module | Long-Range FPV
GEPRC LINKFLOW 915M ExpressLRS TX Module | Long-Range FPV
GEPRC LINKFLOW 915M ExpressLRS TX Module – Long-Range FPV Control
Take your FPV freestyle flying and quadcopter builds to the next level with the GEPRC LINKFLOW 915M TX Module. Built on the next-generation ExpressLRS 3.5 protocol, this JR-Bay compatible transmitter module delivers exceptional range and rock-solid link stability — ideal for DIY RC enthusiasts, freestyle pilots, and long-range explorers alike.
Key Features
- Next-Gen ExpressLRS TX Module — Standard JR-Bay design, compatible with most popular radio transmitters
- 868/915 MHz Dual-Band Support — Up to 2000mW output power for maximum transmission range
- Active Cooling — Built-in high-speed fan keeps the module running cool during extended sessions
- TCXO Oscillator — Temperature-compensated crystal oscillator ensures stable performance across extreme temperatures
- Custom Moxon Antenna — Optimized for enhanced signal transmission and link integrity
- Integrated Backpack Chip (ESP8285) — Enables direct peripheral connectivity for VTX control and pit mode
- Dedicated UART Port — For relay setups or high-power receivers
- RGB Status Indicator — Clear visual feedback on module state at a glance
- Flexible Power Supply — Runs on external 2–6S LiPo power
- Easy Firmware Updates — Update via USB or WiFi for hassle-free maintenance
Technical Specifications
| Module Type | JR-Bay |
| Main Chip | ESP32 |
| Backpack Chip | ESP8285 |
| RF Chip | SX1276 |
| Frequency | 868 / 915 MHz |
| Output Power | Up to 2000mW |
| Oscillator | TCXO |
| Refresh Rate | 25 Hz – 200 Hz |
| Antenna Connector | SMA |
| Power Supply | 2–6S |
| Firmware | LINKFLOW 900M TX |
| Color | Black |
| Material | Plastic |
What's in the Box
- 1 × GEPRC LINKFLOW 915M TX Module
- 1 × 915 MHz Moxon Antenna
- 1 × GH1.25 3-pin Connection Cable
Made in Mainland China.
For general guidance on radio frequency equipment and safe operation, visit the FCC or review drone safety resources at FAA UAS (faa.gov). For broader hobbyist drone regulations, the CPSC consumer safety page also provides relevant product safety standards.
Note: Due to different production batches, there may be minor differences in product appearance, color, or printed text. These variations do not affect functionality. Color may differ slightly from photos due to display settings. Measurement tolerance: ±1–3 cm.
Frequently Asked Questions
Q: Is the GEPRC LINKFLOW 915M TX Module compatible with my radio transmitter?
A: Yes — the LINKFLOW 915M TX Module uses a standard JR-Bay design, making it compatible with most popular radio transmitters that accept JR-Bay external modules, including those from Radiomaster, Jumper, and similar brands.
Q: What protocol does the LINKFLOW 915M TX Module use?
A: It runs on the ExpressLRS (ELRS) 3.5 protocol over 868/915 MHz frequencies, offering low-latency, long-range RC link performance at refresh rates between 25 Hz and 200 Hz.
Q: How do I update the firmware on this TX module?
A: Firmware updates are straightforward — you can update via USB connection to a computer or wirelessly over WiFi using the ExpressLRS Configurator tool. The integrated ESP8285 backpack chip supports OTA (over-the-air) updates.
Q: What power source does the GEPRC LINKFLOW 915M module require?
A: The module runs on an external 2–6S LiPo battery supply. It does not draw power from the radio transmitter's internal battery, ensuring consistent high output power up to 2000mW.