iFlight BLITZ Whoop 4.9GHz 2.5W VTX
Manufacturer: iFlight. The compact and high-performance BLITZ Whoop video transmitter is designed for FPV flights where signal reliability, precise control, and efficient cooling are crucial. The model operates in the 4.9 GHz band, has 8 channels, and a maximum output power of up to 2500 mW (2.5 W). The casing is CNC-machined, and a built-in fan provides active cooling for stable operation during long, intensive flights.
Key Advantages and Features:
- Frequency range: 4.9 GHz.
- Frequency band support: A | B | E | F | RaceBand.
- Antenna connector: MMCX (always install the antenna before powering on).
- PitMode for safe operation during competitions or equipment checks.
- External control via SmartAudio for quick parameter adjustment from the flight controller.
- LED indication for channel and power level.
- Built-in microphone for mono audio transmission.
- Form factor: board, compact dimensions for integration into mini and whoop builds.
- Camera power supply: 5 V, 0.3 A. Device input voltage: 7 – 34 V.
Control and Indication
Channel and power level switching is done via buttons on the module. An LED display shows the selected channel, and blinking indicators provide a visual cue for the selected output power level. VTX telemetry is supported via the IRC Tramp protocol, allowing VTX status retrieval and parameter changes via SmartAudio.
| Action | Function |
|---|---|
| Press for 2 seconds | Enter or exit PIT mode; a solid green light indicates entering PIT mode |
| Short press | Green light (output power): number of LED flashes indicates VTX output power |
| Change power | Short press: 1 flash = 25 mW, 2 flashes = 400 mW, 3 flashes = 1000 mW, 4 flashes = 2500 mW |
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | iFlight |
| Model | BLITZ Whoop |
| Frequency range | 4.9 GHz |
| Number of channels | 8 |
| Frequency bands | A | B | E | F | RaceBand |
| Transmitter power | 2500 mW |
| Antenna connector | MMCX |
| PitMode | Yes |
| Channel selection | Button |
| External control | SmartAudio |
| Channel indication | LED display |
| Audio transmission | Mono |
| Built-in microphone | Yes |
| Form factor | Board |
| Camera power | 5 V, 0.3 A |
| Input voltage | 7 – 34 V |
| Power levels | PIT / 25mW / 400mW / 1000mW / 2500mW |
| Signal input | RCA (video) |
| Video format | NTSC | PAL |
| Video/audio separation | 6.5 MHz |
| Mounting | 25.5×25.5 mm / Φ1.6 |
| Dimensions | 50x30x16 mm |
| Weight | 32 g |
| VTX Telemetry | IRC Tramp |
Package Contents
| Item | Quantity |
|---|---|
| iFlight BLITZ Whoop Video Transmitter | 1 pc. |
Power Levels and Channels
| Parameter | Value |
|---|---|
| Power levels | PIT / 25mW / 400mW / 1000mW / 2500mW |
| Number of channels | 8 channels |
Channel Frequencies
| Channel | Frequency |
|---|---|
| CH1 | 4990 MHz |
| CH2 | 5020 MHz |
| CH3 | 5050 MHz |
| CH4 | 5080 MHz |
| CH5 | 5110 MHz |
| CH6 | 5140 MHz |
| CH7 | 5170 MHz |
| CH8 | 5200 MHz |
Usage Instructions
| Function | Description |
|---|---|
| Channel setting | A short press of the channel button changes the channel from CH1 to CH8. The LED indicator shows the selected channel. |
| Power adjustment | A short press of the power button changes the output power level, the indicator displays the selection as follows:
|
| PIT Mode | Long press for 2 seconds to enter or exit PIT mode. A green LED indicates entering PIT mode. |
Important Notes
| Caution | Description |
|---|---|
| Antenna | Always install the antenna before powering on the iFlight BLITZ transmitter. Operate only with an intact antenna to avoid damaging the module. |
| Cooling | It is recommended to provide sufficient ventilation space around the module to prevent overheating. Without proper cooling, the system may activate overheating protection, leading to reduced power or VTX shutdown. |
The iFlight BLITZ Whoop 4.9GHz 2.5W is a reliable choice for pilots who require high power and precise parameter control. Thanks to SmartAudio, PIT mode, LED indication, a wide input voltage range (7–34 V), and compact dimensions (50×30×16 mm, weight 32 g), this module is easily integrated into most mini and whoop builds. Adhere to cooling requirements and correctly install the antenna for long-lasting and stable operation.
Product category: Drones & Quadcopters > Transmitters.
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