I think few modern PLL FMs will have much problem with stereo decode, but it is amazing how wide the stereo decode "bandwidth"
as seen by the user on the Sansui for a non-iboc station like WFMT, to razor-thin for most ibocs, then not at all for some like WLUP.
All things being equal, every situation is different.
My car radios are FM mono, and the tuning "capture and AFC" seems a bit weird as a I tune for best signal on the old
'66 or '72. I should really test the '84 Blaupunkt to see what it thnks of all this. It hasn't been on since the late 90's.
But I hear no added noise in mono decode.
I' hanven't had the top off that Sansui in 20 years, so I believe you're right. And it probably has numerous caps
"not spec" in many ways. It might even be OK with just a proper alignment. Where the heck is my RF osc these days?
The noise I mention is truly very, very tiny, and I could only detect it in the briefest of the few moments modern FM
gives to modulation less than 10%. You'd hear it on a classical station, which is why WFMT hasn't yet, but they may do it yet.
People actually complained a lot when they added SCA, and WFMT yanked it....or am I thinking of WNIB?
I suffer nothing from loss of weak signals as the Chicago market is full up.
But I think many rimshot/commute and otherwise power-challenged FMs are gritting their teeth when
listeners give up listening to a borderline weak local signal for a stronger signal.
I will leave this fight for those with real experience in the FM situation.
I guess I'd give the FM a thumbs up, and the AM a thumbs down. Cut losses, get real, get to work. Part of this system works.
I can't add anything other than to say that at least 100 mhz behaves better for such an application, and FM certainly does a much
better job of being deaf to the dig. sidebands.
Please forgive any missing h's. This dang keyboard.
Is a crumb or something in the keyboard making the h "funny" an analog or a digital problem?
I see several arguments for both sides. But I think it is eventually an analog problem, though digits are involved.