The Yaesu FT-897D has a so-called “Programmable Memory Scan (PMS)” feature, which allows limiting scanning to a user-defined band by creating special paired memory entries which set the upper and lower frequency bounds.
I've used it successfully on the first programmed band (M-P1L to M-P1U), but I can't figure out how to select a different programmed band to scan. I've tried selecting M-P1L before entering PMS mode and it just goes to PMS-1 instead of PMS-2, and none of the controls in PMS mode change bands that I've noticed.
The manual on page 50 discusses how to enable PMS but not how to change bands. Searching for advice on the web only turned up this rather annoyed person's workaround of SKIPping the memories other than the one to use, which can't possibly be how it's supposed to work.