SXT - 5nD r2 work in vertical polarization only with chain1 enabled. Older SXT (first revision) need enabled rx on chain 0.
I try it witr "r2" without enabled rx on chain 0 and it works good.
It is new feature SXT -5nD r2?
Can you please specify which chips... ?some newer chips could also work with only chain1 enabled
But why? With only chain1 enabled it works very well (r2 revision of SXT). In very noisy environment is better only chain1 rx enabled. (only vertical polarization)but we still recommend to use chain0 as a main one and chain1 only when chain0 is already enabled.