Since we have people here who like talking about RF things, I just wanted to get a feel for just how bad my efforts are in checking out the 8568B I have on my desk.
I've recently upgraded to some real RG58 (courtesy of Bean), but the only termination option I have is the BNC "T" with 50 ohm terminators on the other leg, as follows:
My question is: How bad is this? At what frequency will I start tearing my hair out (the scope is a TDS220) - and what sort of amplitude variations can I expect with frequency change?
Before putting it up for sale, I'm trying to check out this unit as thoroughly as I can so that I can give some accurate statements that will help a buyer decide. Everything I've checked out so far seems to function, but I can't be certain of the accuracy of frequency or attenuation, because I simply don't have suitable equipment.
Therein lies another question... This unit will have to be sold as uncalibrated - but aside from that, what risks do I face if I were to sell it as "used"? I don't want this baby coming back at me since shipping won't be cheap. What can I do to be fair to the buyer, but not give it away?