Hi to everyone, A fellow here in our location is selling me a cheap working Tektronix 491 spectrum analyzer that doesnt have the standard accessories. My knowledge on how to use this type of equipment is limited at the moment but very interested in getting to know how. Just would like to ask before I buy it, would I still be able to put it in good use or be able to measure things even if the standard accessories are not included, like the waveguide mixers, etc.? Can i substitute them with homebrewed ones?
Thank you much. jay
