Is this Vista knackered

[SparkyFPV]

Have a look at this

Vista issue

Ok had a look at, and have a little better understanding of your system I think! So you are using a DJI radio? and from what I can gather the Tx and Rx are for the Telemetry, and you have Telemetry? The Sbus is for the Radio channels, 8 of them with the Dji radio? The Tx, Rx and Sbus are low voltage networks that must not go over 3.3v Found this [image]

Looks like the RX diode has blown

Review: Caddx VISTA VTX for DJI Digital FPV System - Oscar Liang