GPS weak signal + weird RSSI reading with tiny OSD

[Jet_Ejection]

Hello.

I've bought my unit from bangood. It was about 1/2 year ago - but I was able to test it only recently.
Anyway.

My setup:
EZUHF radio
1.2 video
skylark tiny osd

photos of GPS unit: https://imgur.com/gallery/xu3Cp
photos of video system (just in case): https://imgur.com/gallery/Pi8ry
I've flashed latest firmware from official website.
Wiring is 100% correct.

1) GPS signal is weak no matter what I do
I've tried with video Tx/Rx on and off. I was waiting for like 30 min - but the result is the same - 0 satellites.
I've tried 5.8 video - same result.
I have not tested it outside yet, but I've tried to put it onto balcony - same result. And as an example - naza finds GPS in my apartments very quickly.

Q: Any ideas what should I do b4 ordering new GPS unit?

2) RSSI readings.
I've turned Link Quality on CH8 in immersionRCtoools settings.
Calibration was successful.
It works but in a strange manner.

When I turn transmitter off RSSI 1st drops to 53% and after a tiny pause - about 1/2 - 1 sec it goes to 0.

Q: Is it normal?

[Jet_Ejection]

UPD. GPS is fixed.
I've should test this outside b4 posting my question )

But RSSI still acts in the same manner.

[doobie]

ya my ezuhf does the same thing.

[Jet_Ejection]

ya my ezuhf does the same thing.

So the actual "signal loss" in such situation is 0% or the 1st number right after I switch the transmitter off(in my example 53%)?

[doobie]

well the actual LQ would be 0% if the tx is off rite? mine drops down a couple increments till it hits 0%. takes abouty a second or so after I turn off my tx to hit 0%. same with the RSSI. does a couple increments till it hits about -90 or so

[Jet_Ejection]

I've got you. Thanks for helping me out )