I have something like a personal problem with "the best FPV transmitter manufacturer". It's about ideology. So, when a few weeks ago I had to order a few 5.8GHz transmitters, I had something like a problem. With TBS Unify Pro on my "not wanted" list, the "wanted" list got somehow short.
I do own a few Matek HV VTXes and I'm quite happy with them. But I can not always buy the same thing, so when I saw Eachine TX805 for slightly more than $15 I've decided to give it a try.

Eachine TX805 video transmitter 800mW SmartAudio

It appeared in the mail today and here are some first thoughts about it.

Eachine TX805 video transmitter 800mW SmartAudio

First of all, it's slightly bigger than I expected and in fact, it almost looks like a clone of Matek HV VTX. Not that it's bad or something, it's just not what I expected.

Eachine TX805 video transmitter 800mW SmartAudio

RF circuitry is shielded. And that is good. I only wonder if there is any kind of thermo-pad between shielding and RF components. I hope since at 800mW heat can kill electronics pretty easy. I like MMCX connector since u.fl sucks so much. I also like the fact that all the connectors are solderable. I prefer that over JSTish connectors. A pretty bulky choke allows me to suspect that built-in 5V voltage stabilizer of the camera is at least decent as well. On the other hand, soldering on MMCX does not look "high quality". But hey, I got it for $15.99, I can not expect too much, right?

Eachine TX805 video transmitter 800mW SmartAudio

What else in a box? RP-SMA pigtail, whip antenna, and a short manual. It's a nice touch about that manual. It's quite nice and written in understandable English language!

Eachine TX805 video transmitter 800mW SmartAudio

Eachine TX805 5.8GHz 40CH 800mW video transmitter specification:

  • Frequency: 5.8G
  • Channels: 40CH
  • Input voltage: 7V~24V
  • Serial protocol: Smart audio (licensed? But can you really license a protocol?)
  • 5V output for Camera
  • Output power: 25mW/200mW/600mW/800mW switchable
  • Antenna connector: MMCX
  • Cable connector: Solder pads
  • Dimensions: 36mm22mm5mm, 30.5mm hole spacing
  • Weight: 8g without antenna

I got mine Eachine TX805 from Banggood