I am trying to use one upconverter (EVAL-HMC7585) and one downconverter (EVAL-HMC8327) to have a back-to-back communication test. I noticed there are four IF ports in each module: I-, I+, Q-, and Q+. Since I do not have any couplers available on hand, can I just use the Q+ port for signal input/output while terminate all other 3 ports with 50ohm matching connectors? Will it cause any problems?
Thank you very much for any suggestions!