I am going to start with AKK A3-OSD
It is integrated all in one solution which means that camera, video transmitter (VTX) and antenna are joined together in one device.
These little systems are so versatile, you can put them anywhere.
Primary, they are meant for micro quads like Tiny Whoop or Inductrix, but actually , you can use them on anything related to RC: cars, helicopters, airplanes...
Let's run through specifications first.
Input voltage: 3.3V - 5.5V
Operating current: 300 mA (at 25 mW output)
Antenna connector: dipole
Video Format: NTSC 600 TVL
Lenses: 120° FOV
Frequency: 5.8 GHz, 6 bands, 48 channels
Output power: 0.1mW / 25mW / 200mW
Weight (measured): 4.57 g
Dimensions: 18 mm x 13 mm
OSD: Call-Sign, CH, Band ,FR, voltage and flight time
So, the easiest way to power this little thing is by using 1S battery. There is battery adapter provided with the unit for different battery connectors.
Big surprise is OSD. You can type in your Call-sign and all necessary data is visible like band, channel, frequency and power output.
All settings are done with single button and 2 LED lights.
And what can I say about this one. Well I like it. I like it a lot. With its 200 mW of output power and versatility plus OSD this is my favorite.
Previously I have tested AKK A5 AIO which is split system without OSD and with maximum power of 25mW, and with that system i got around 700m range with clear picture.
Since this one has 200 mW output power, range will be much bigger, I assume over 1 km.
That is a lot for such small device.
Battery consumption depends on your power output, and with 150 mAh 1S battery and 200 mW output, you can have around 5-6 minutes of picture.
Whole review and how to setup band, channel, Call-sign... is in video below.
Link to product: https://www.akktek.com/products/micro-aio-cameras/akk-a3-osd.html?acc=43ec517d68b6edd3015b3edc9a11367b
Second Camera is AKK AIO-SA
It looks almost similar to A3-OSD but with additional cable connector.
And that SA stands for Smart Audio. That means that you can setup all parameters via BetaFlight OSD in your micro or mini quad and use special PitStop mode (0.01 mW output). Of course, you can setup this camera with single button on camera and 5 red LEDs and 2 blue LEDs.
There is a loop yellow cable on that additional connector which allows you to insert your own OSD in between.
Let's run through specifications:
Input voltage: 3.3V - 5.5V
Operating current: 300 mA - 480 mA
Antenna connector: dipole
Frequency: 5.8 GHz, 5 bands, 40 channels
Output power: 0.01mW / 25mW / 50 mW / 100 mW / 200mW
Weight (measured): 5.25 g
Dimensions: 18 mm x 14 mm
As you can see, that additional cable and Smart Audio hardware added around 0.8 grams in weight, but that is acceptable. Picture quality is very good, and response to light changes are fast enough.
Link to product: https://www.akktek.com/products/micro-aio-cameras/akk-aio-sa.html?acc=43ec517d68b6edd3015b3edc9a11367b
You can see whole review and setup in video below.
And my final thoughts.
I like both of them, but my favorite is A3-OSD since I fly mostly planes and that little thing has everything that I need: good stable picture, good range, versatility and extra integrated OSD.Good job AKK