This is the cheap no name RF power meter, sold on the Aliexpress. Low hobby grade measurement accuracy. I was using it until I have purchased the ImmersionRC Power Meter V2. That device is more accurate and I use it for the VTX measurements since.
More technical info on this power meter here: https://www.eevblog.com/forum/rf-microwave/cheap-rf-power-meter-vs-wifi/ and here: https://photos.google.com/share/AF1QipNmQ_hwWHswpQxd5i6tyUQKjYGGtXhZX53NekndhIYxJUBnoCV16Jt81td4VP9s9A?key=cVJ4UDBYN0UycVZaNENQNmJLNzk4cDNCaU9jV0dn
See all my (20+) VTX reviews: http://www.dzskam.com/?s=Review+VTX
thanks
]]>AKK Race VTX should be powered from +5V. You can connect the Race VTX to +5V on PDB. If your camera supports +5V power source, you can connect the +5V power out line from the Race VTX. This is assuming that PDB can supply the needed amount of the current to +5V rail.
]]>Can I power this threw the FC or power the FC from the VTX and then power the camera from FC? Can I run both from the 5v on the pdb?
I have a 12v on the pdb available and thinking Im going to have to use a buck.
Also what capacitor should I use and where should locate it?
Many thanks in advance.
]]>I don’t use pit mode, but as long as I know it should be possible to put into and out of pit mode by means of Betaflight OSD and LUA scripts. Try reading this resource for further investigation: https://github.com/betaflight/betaflight/issues/3094
]]>