#ELRS RXLoss at -67 RSSI dbm

5 messages · Page 1 of 1 (latest)

dense trout
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Hello guys I just had a random RX Loss at -67 RSSI dbm. You can see it in the goggle recording yourself

Short specs listing:
iFlight Nazgul DC5 Eco Bund and Flight
Stock iFlight ELRS Receiver 2.4Ghz ( non diversity )
Antenna looked fine after Crash, Receiver too
Radiomaster Zorro internal ELRS Modul
Transmitter ELRS Version up to date from one week ago
Receiver version the version it was shipped with ( I would guess 3.2.x something )
250mW 250Hz
Flight Distanz till fail about 300m

The weird thing is normally the failsave threshold is at -105dbm. Or maybe a little above that m. But not at -67.

Do you guys have any idea how this could have happened. The flight before, everything was normal. ( I have not flown since. Have to repair the Quad first )

lyric ether
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I'm assuming that below the 250mW power is the RSNR which if it's going down to -7 it's no wonder it went into failsafe.
I see that as the RSNR drops the LQ starts dropping (expected) and then as the RSNR started to go up a little then the LQ started to recover a little then the RSNR dropped again so the the LQ dropped to 0.
I'd be looking at the receiver very carefully. Check the u.FL connection on the antenna connection to the RX.

dense trout
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The ufl connector was still seated properly. And the shrink wrap was still covering everything else. But I have to to some more research regarding RSNR. Luckily I had it in the osd in case i need it

dense trout
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Okay I did some reading. One follow up question. Why does the RSSI not drop when the RSNR value drops. Should it be harder to “hear” the signal? Therefore being a lower RSSI value?

quasi lake