From: "jones_chap"
[Snip]
If you will be aligning Tuners, the 5000 series won't do. You will
need something that will get out there. I've read that one needs to
have three times the bandwidth of the observable measurement. So for
FM, ya gotta get out there! [snip]
You don't need much BW to align FM tuners. All you need is an RF (diode)
probe and a sweep generator that covers the RF and IF frequencies
(markers are a plus). You have to sweep the IF and adjust the IF
transformers for the correct envelope response. If you don't want to
use an RF probe, you only need something that will see and be fairly
flat across the IF frequency.... usually 10.7 MHz. In receivers with
ceramic IF filters, alignment is essentially moot. A 60 MHz scope
(think 7603 or 465) would do fine, IMO.
-John
