DiscLite5 chain polarization

Hi
I can’t find some documents about Disc Lite5 and which chain is H pol and which is V pol.

why do you need this info? Point the antenna in a way, that the cable goes down, and all will be OK

I want to know “which chain is H pol and which is V pol”
for personal reason

my first problem is " different signal between 2 chains"
my sec problem is " why sometime total Tx signal is -61 and the other time is -48"
other Radio is “RB921GS-5HPacD r2” with UBNT Wireless card

The RB921 with the ubnt card is transmitting at a higher power level then the disc.

Depending on the antenna on the 921 the gain is higher on the 921 side also

That is the reason the 2 chains differ from one another.

the different Tx power between Radios is the reason why i have different between Tx / Rx
how about sec problem
I don’t think my sec problem comes from my Disc lite5 because i test it with LHG5 and there was same problem