T8SG V2 PLUS failsafe issue

HI everybody!!!
I have a serious range issue with my jumper T8SG V2 plus...
Most of the time I've got failsafe (rxloss) at less than 100 meter with diversity flysky receiver (fli14+) same with other receiver even if my RSSI is 90+. Compared to my FS-i6 where I get at least 300m+ range.
Sometime I can't even arm my quad, RXLOSS alert each time I try to arm...
Quick video: https://youtu.be/wBVDmmqk_fs
As you can see rxloss at 0:05 with rssi at 95 and unable to arm multiple time at 0:15.
Any advice?

Thinkin it was a counterfeit radio after all problem I've got for flashin it...

you could try first try fine tune the frequency during bind? Just to check, that you are centered.

You could also monitor LQI indicator it is better and available in deviation.
If someone has a power meter, you can validate the output power.

but sounds very strange rssi 90, while fail saving couldn't be a power issue at the RX side?

Hi,

Already tested freq tune, stock tune doesn't look bad, when I success to bind I get signal from -200 to 200.
Already use LQI
Sadly no power meter.
No RX power issue, same issue on all my receiver (test with 3 different)

I have to say the Flit12 diversity receiver I find it less range than the Flysky X6B, with Flit I had fail saves.
I own no original Flysky Tx to compare, but you should get same or maybe even bit better range at 150mW?

I get longer ranges with Frsky than Flysky.

Oh btw, Hexfet has been working recently on Power adjustments of the protocols, I do not hope there is a bug?
www.deviationtx.com/forum/7-development/...-nightly-build#72479


I bought a power meter, possibly can verify it....
www.aliexpress.com/item/8GHz-1-8000Mhz-O...5d-8bfe-b29a2799ca57

That's not a rx issue, tested with all my quadcopter, same with all !
And like I said I've got a loooooot more range with the fs-i6.

No one???
Should I blow it with a firecracker?

Thanks vlad!
I'm on "deviation-t8sg_v2_plus-v5.x.x-2019-01-23" but gonna give it a try!

New firmware new bug...

Did you copy the filesystem files from vlad's build? There's some differences between 5.0.0 and nightly build.

Hi !
Didn't touch her for some day...
Flash it with nigthly build, all look fine for some day... And back to some weird betaflight rxloss alarm with full rssi, failsafe and unable to rearm... Sometime yes... Sometime no...
Flash today with latest 5.0.0 you post vlad, same result.

Weird thing... Get better result when radio is vertical than horizontal... Moving antenna didn't change anything...

Maybe I've got a bad antenna ? Unfortunately didn't have an other one for test.

Rx Loss with full RSSI ? Strange....

I can say deviation Tx has been really rock solid for me, so I would search for hardware issues loose connections bad soldering etc. Loose sbus line between Rx-Flight controller etc.