what's is my 1622 radar dome?

[linhkienbodam]

I have a RPD-125 and 2 randome 15 inches. RSB-0060 and RSB 0060-068. I conected the dispaly to both of the randome and it seems they work together well but the signal is different so please help me which randome is used for my RDP-125. Thank you
Nick

 

[Melville]

The RSB-0060-068 was the dome that was shipped with the 1622 radar when it was available.

 

[linhkienbodam]

Thank you for your help