How to connect both the devices without using cable..and find the amplitude? i set the SG to 500 MHz and 0 dB and connected it to SA it gived some harmonics what this means to tell plz any body make me clear i am new for the system. i also want to check as the noise that obviously produces from some where in or out of the system so how to detect this??Connect signal generator directly to spectrum analzyer. Measure the amplitude in dBm.
Insert cable between generator and analyzer. Measure the amplitude in dBm.
Subtract the two measurements to get cable loss in dB.
Depending on what frequency you are measuring, perhaps a significant concern is the impedance mismatch of your coax 'pigtail' connection. It is very difficult to make a pigtail connection without adding a few nanohenry of series inductance in the line.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 ....