Hello. My first posting. I'm very much a novice and I don't know how to interpret some results. I recently purchased a Tektronix 2215 60MHZ 2 channel scope and a Tektronix 2246 100MHZ 4 channel scope. I don't know when either scope was calibrated last, but both seem to function reasonably well. I'm only going to keep one of the scopes. I connected each scope to the same function generator set to input a sine wave at the same frequency and amplitude to compare the resulting trace on each scope. The Vertical and Horizontal parameters were set the same so I expected to see the same looking trace on each scope. However, the 2215 was showing 4 complete sine waves while the 2246 showed only 3 complete waves. The peak to peak voltage was the same. So, don't know if I have a problem with one of the scopes. The peak voltage was a bit over 1V, but I didn't check what the frequency was set to, but seems to me both scopes should be showing the same trace. Right?