Spec and Features
- Dimension: 23*19*22mm
- Antenna Size: 25*14mm
- Transmitter Weight: 7 g
- Accessories: 1 x 3pin JST silicone cable
- Microphone: Available
- Supported Channels: 5.8Ghz 40ch
- FOV: 120°
- Power Supply: DC 4.8-24V
- Current: 150mAh @12V (200mW) / 90mAh @ 12V (25mW)
- Power Switchable: 25mW / 200mW (by push button)
- Channel Selection: Push Button / PWM
- NTSC/PAL switchable (solder bridge)
The Camera VTX combination supports raceband, which greatly simplifies FPV for a new user and allows much more flexible VTX receiver matches without looking into channels and frequencies.
The HB25T is 10 grams in weight including cables. This means it is well suited to more powerful brushless micro quads, because it would be too heavy for a tiny whoop (or other small brushed quadcopters). For those you should be looking at VTX/Camera below 5g, such as the FX797/798.
It has a large variation in power input and can be powered directly by 2s to 5s LiPo battery. This small unit has microphone support and also has an OSD input. This is uncommon on micro camera combinations.
The Aomway HB25T features a very compact space saving design. Despite its small size the HB25T has an OSD line in, this allows you connect the camera/VTX to an OSD.
The wide input voltage range means you don’t need a voltage regulator for it to work. This once again saves on space, cost and excess weight of a secondary component.
One of the main points for this small VTX Camera combination is its power switchable capabilities between 25Mw and 200Mw, allowing for frequency usage compliance in many countries around the world.
This feature also allows for use on micro quads indoor using 25 mW or going outside and using it as a small solution on a larger quad and allowing the flyer to benefit from its 200 mW capabilities. The power switch is easy too it does not require you to cut or bridge any solder joint it is controlled by the two buttons on top of the VTX PCB.
The 600TVL camera gives a crisp image. However is easily knocked out of focus by the screw able lens design.
The ability to use PWM to change the channel changing the frequencies allowing for remote use.
The antenna is fixed meaning it is more difficult to mount than a more traditional unscrew-able design.
The exposed brass antenna is soldered directly to the back of the board giving poor durability and a high chance of damage that is more difficult to repair than usual.
The seven segment display isn’t bright enough and requires visibility to check the power and channel, causing a limit to places where the Camera can be changed settings.
Application limited to more powerful brushless setup, as 10g is too heavy for brushed quads.
To Change the power on the VTX press the left hand button when the camera is facing you. TO turn the Camera combination on press the right hand button.
Author: Cormac Mclean