thanks for the replies.
so here's a follow up to my problem
i have to measure the pathloss between a certain microstrip.at one end of the mistrostrip is a sma connector connected to the module (by default) while at the other end , i soldered a cut coax to the solder mask, so now i was able to measure the total loss of the setup. the problem is, how am i suppose to measure the loss of a coax(abt 2 inches long), with its other end cut ( thus exposing it's ground and main wire ) ?
btw, the reaL purpose of the setup is to measure the path loss ( through subraction ) of the microstip from the solder mask to the sma connector connected to the module by default ....