The FPV Drone Parts Analog Video Transmitter VTX-F1-72 is a video transmitter with an output power of over 1600mW. It features a compact size, lightweight design, low power consumption, low latency, and strong anti-interference capability. Made with a high-strength CNC aluminum alloy casing and equipped with a built-in micro turbo fan for active heat dissipation, it ensures stable high-power transmission. The transmitter includes temperature control protection to prevent overheating during prolonged ground configuration. Supporting the IRC protocol and OSD configuration, it is widely used in FPV drone flights, outdoor entertainment, racing competitions, and professional aerial photography.
CNC Aluminum · Micro Turbo Fan · IRC Protocol · 72CH (4.9G/5.8G/6G)
Product Diagram — 38.5×26×8.7mm · 14.9g (excl. antenna)
Overview
The VTX-F1-72 is a video transmitter with an output power of over 1600mW. It features a compact size, lightweight design, low power consumption, low latency, and strong anti-interference capability.
Made with a high-strength CNC aluminum alloy casing and equipped with a built-in micro turbo fan for active heat dissipation, it ensures stable high-power transmission.
The transmitter includes temperature control protection to prevent overheating during prolonged ground configuration.
Supporting the IRC protocol and OSD configuration, it is widely used in FPV drone flights, outdoor entertainment, racing competitions, and professional aerial photography.
FPV Drone Parts Analog Video Transmitter General Characteristics
Input Voltage:DC 7V‑36V (2~8S)
Output Voltage:5V±0.5V (MAX 500mA, input >7.2V)
Channel Number:72CH (4867‑6100MHz, freely writable but only one frequency at a time)
Transmitter Power:PIT mode / 25mW / 400mW / 800mW / 1600mW
Control Protocol:IRC Tramp (OSD adjustable)
Modulation Type:FM
Frequency Control:PLL
Frequency Stability:±100KHz (Typ.)
Frequency Precision:±200KHz (Typ.)
S/N (Fo ±3)＞70dBc
Antenna Impedance:50Ω
Antenna Interface:MMCX
Video Format:PAL / NTSC
Video Output Level:1V±0.2Vp‑p
Audio Input:MIC pickup (audio carrier 6.5M)
Operating Temperature:-10℃ ~ +60℃
Dimensions:38.5×26×8.7mm
Weight:14.9g (excl. antenna)
FPV Drone Parts Analog Video Transmitter Interface Functions & Operation
| Interface/Button |
Function and Description |
| 5V OUT |
5V±0.5V output (MAX 500mA @ input >7.2V) |
| GND |
Video GND, power input negative, signal GND |
| Audio IN |
MIC audio input |
| VIDEO |
Video input (1VP‑P @75Ω) |
| IRC |
IRC Tramp protocol, supports OSD parameter adjustment |
| DC IN |
Power input negative DC 7V~36V (2S~8S) |
| MMCX |
Antenna signal output (internal hole) |
| Channel/Band Button |
Short press: select frequency; long press: select band |
| Power Button |
Short press: cycle power (25/400/800/1600mW); long press: enter PIT mode |
| Channel LED |
Green: blink times indicate channel number |
| Band LED |
Blue: blink times indicate band number |
| Power LED |
Red: blink indicates current power level |
Power Indication (Red LED blinking pattern)
| LED Status |
Always ON |
Blink 1 |
Blink 2 |
Blink 3 |
Blink 4 |
| Power (mW) |
PIT |
25mW |
400mW |
800mW |
1600mW |
Temperature protection: When temperature exceeds 100°C, FPV Drone Parts Analog Video Transmitter output power automatically reduces by one step. If temperature remains above 100°C, it continues to decrease step by step down to minimum (25mW). Once temperature drops below 95°C, the original power setting is restored.
Regular 48CH Bands (FR1~FR6) · Green LED indicates channel, red LED indicates band
| Band (red LED blink) |
CH1 |
CH2 |
CH3 |
CH4 |
CH5 |
CH6 |
CH7 |
CH8 |
| FR1 (blink 1) |
5865 |
5845 |
5825 |
5805 |
5785 |
5765 |
5745 |
5725 |
| FR2 (blink 2) |
5733 |
5752 |
5771 |
5790 |
5809 |
5828 |
5847 |
5866 |
| FR3 (blink 3) |
5705 |
5685 |
5665 |
5645 |
5588* |
5590* |
5592* |
5594* |
| FR4 (blink 4) |
5740 |
5760 |
5780 |
5800 |
5820 |
5840 |
5860 |
5880 |
| FR5 (blink 5) |
5658 |
5695 |
5732 |
5769 |
5806 |
5843 |
5880 |
5917 |
| FR6 (blink 6) |
5362 |
5399 |
5436 |
5473 |
5510 |
5547 |
5584 |
5621 |
* FPV Drone Parts Analog Video Transmitter FR3 frequencies as per original text: 5588/5590/5592/5594 (may differ, but kept as manual shows)
Extended 24CH Bands (FR7~FR9)
| Band (red LED blink) |
CH1 |
CH2 |
CH3 |
CH4 |
CH5 |
CH6 |
CH7 |
CH8 |
| FR7 (blink 7) |
4990 |
5020 |
5050 |
5080 |
5110 |
5140 |
5170 |
5200 |
| FR8 (blink 8) |
4867 |
4884 |
4921 |
4958 |
4995 |
5032 |
5069 |
5099 |
| FR9 (blink 9) |
5960 |
5980 |
6000 |
6020 |
6040 |
6060 |
6080 |
6100 |
48CH ↔ 24CH switching: Press and hold both “Power” and “Band/CH” buttons for 5 seconds. All three LEDs blink once (switching to 24CH) or blink twice (returning to 48CH). Changes take effect after power cycle.
⚠️ Band can only be switched via buttons, not through protocol. After band switch, frequency can be adjusted via IRC protocol.
Remote OSD Parameter Tuning (IRC Protocol)
| Flight controller OSD power value |
Corresponding output power |
| 14 |
25mW |
| 17 |
400mW |
| 23 |
800mW |
| 26 |
1600mW |
OSD adjustment interface (image placeholder from manual)
⚠️ Precautions for Use
- Always install the antenna before powering on to avoid equipment damage. Ensure antenna frequency range matches the transmitter and is properly connected.
- Select an appropriate working frequency and make sure both transmitter and receiver are set to the same frequency (refer to frequency table).
- The transmitter has high output power. Do not touch the housing during operation to avoid burns. (Hot housing is normal – not a malfunction.)
- If the casing is removed to reduce weight, the product will still function, but output power may slightly decrease due to higher temperature.
- Input voltage must be DC 7V‑36V (2~8S). Do not operate outside this range.
- Output voltage/current: 5V/0.5A. Ensure your camera operates within this range. If camera draws more than 0.5A, do not use the transmitter’s 5V output to avoid damaging the power module.
- Do not connect the 5V-OUT terminal to power input or a battery – this will cause damage.
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