hi All
I am new to this forum and work mostly in the automation and plc programming field but I find electronics very interesting which due to lack of time i could not pursue earlier.
So I have brand new RSA3015N analyser (it combines spectrum analyser, EMI, vector analyser) and i am interested in mostly troubleshooting EMI problems in control panels which do happen and later to do my own experiments as a hobby. In particular i would like to use high voltage probe Micsig MDP3000 and troubleshoot control panel with EMI issue.
That panel has a large inverter which produces PWM signal (3khz is base carrier frequency) which interferes with the meters readings.
My plan is to:
1: Do spectrum analysis in place near the meters which are affected - I need to figure out exact steps - please fee free to comment
2: Choose EMI filter - starting probably with common mode choke and if they dont work good enough moving to common mode/differential setup
Can you please kindly advise me on how not to blow up my expensive instrument:
1: i already ordered DB blocker 5328-SD3235-ND from Digikey (from 7khz upwards)
2: what else do i need for PWM measurements ? attenuator or limiter etc? My high voltage probe outputs around 3 Volts but i read spectrum analyser do not like PWM signal as its too similar to DC

3: i have sanwa PC7000 multimeter which is great and allows me to do reading in DBM - shall i use it always to check the signal strenght first?
4: shall i always connect the signal to my old rigol oscilloscope DS1074Z?
thanks in advance for any help and really glad i am here

Regards