OSD messages RX LOSS

[Ekaterina]

Hi, I am a beginner, learning drone for 3 months. Recently OSD started showing message 'RX LOSS' or 'AXE LOSE'. The message showed only 0.5 sec so it's hard to catch it, and I can see my drone immediately stall and hit on ground around 15-20m away. After researching the context of message, it seems that my transmitter loses a signal, and drone falls down. Am I right? I often lose VTX signal at first, but never lose flight control transmitter signal before. I am not sure if my transmitter is problem or my drone is problem. Here is my situations;

pic01 - Drone: Beta65X whoop quad (2S) and transmitter: FrSky R97m lite, and goggles:Eachine 800D. I just placed extra antenna as quick test, but I am not sure this improve signal or not. And it looks to output the same signal strength.

pic02 - It shows openTX setting. In general, is that correct setting? I am not sure what External RF > Mode OFF means..

pic03 - goggles display shows antenna strength "20" although I place the drone, the goggles, and VTX next each other. I am expecting to see strength '99' ?!

pic05 - It shows openTX. Antenna strength start from 4/4, and I just walk away about 12m in my room. Then Antenna show 2/4. No doubt I got RX LOSS shortly when I fly outside.

Thus, I really appreciate if anyone gives me some tips to fix RX LOSS.

Thanks in advance

 

[coyote_dc5]

I got exactly the same today and the crash landing broke my motor wire I've done this route with my smaller TH2 with no issues as well which is what I'm surprised about.

 

[Ekaterina]

To coyote,
I guess your case can be intercepted by another strong signal because your initial RSSI is 99. However, mine emits only 20 from the beginning...?