regarding the hiss on FM , I am also sure there is additional 2-3 db of white noise added to the analog signal in demodulation.
This is considering a locked into mono mode. Most FMs keep mod indexs so high and loathe dead air, so it's not something than can be noticed, until you look for it. WFMT 98.7 Chicago not running IBOC has a clearly quieter floor, and holds tuning better at distance
in REAL LC tuned radios at distance while commuting. The IBOC sidebands begin to sizzle in with the "capture effect" unless you carefully
retune to center again. oh, for the days when you could tunrn the AFC off!
I am glad to see more regular people back, but I still hold my head and get annoyed at what business has done to the art of radio, then
wonders why ratings shrink.
Then, a salvation is offered up from....the engi.... NO! The business people again come and tell us how to save the radio.
Only it's a modem. And a slow one, that would have been laughed out of any good radio engineering school until the 80's.
Because it is so obviously not "radio".
By then, there were enough youngsters who did not get taught the fundamentals. Until we had 10 years of engineers who
don't understand the difference because they know no analog, this could not happen.
And how it is the RF and radio engineers of america did not stop this, I can't beleive either.
It's like the younger engineers at a car company to say "let's just make the brakes electrical....it could be DIGITAL!"
There are really good reasons why there is a rigid pipe with an antiquated hydraulic impulse system between your foot and the brake discs, and it's in response to life or death reality, safety-wise.
Would that we had protected good engineering practice long before ever got to the point of "sipping the kool-aid".
"We" should have educated the public instead of letting them become stupid about all things RF.
They did understand it from wiggling rabbit ears and rods. They didn't know they were finding best SNR.
Radio should have financed a campaign to help people clean up their own RF env.
Sell truly quiet dimmers, filters, toroids, noise phase cancellation loop antennas, outside to inside -remodulators for FM troublespots
similar to tunnel leaky coaxes.....the things that could have been done were numerous. Now that the whole RF environment
in the broadcast band is filled with the spurs of millions of unfiltered discontinuous-current devices, our best response to
the noise problem seems to be:
"If ye make noise unto us, we shall change our mode unto noise also. We shall see your noise and raise ye ten."
Professional engineers, why did you say so little?
My head 'bout 'sploded when I first read the proposal, but as I'm not in the biz, I know the FCC round-files engineering comment from
the public.
Those of you who felt there might be some problems at first glance, why did you say so little?