For about a month now, the audio on WSCR 670 (CBS-Chicago) has once again acquired the
charming sound of a torn speaker cone, with a peculiar raspy buzz that rides the highest peaks.
They had gotten it cleaned up 99%, but now it's back, and it brings a new friend.
From 640 to 650, and again at 690 to 700 is a crackling sparkle sound that to me sounds like
motor brush noise or a motor/machine vibrating/buzzing/loose/bad grounding/etc.
This is just below/above the "normal" range of the digital sidebands, and has a very different nature,
a much more distinctive almost popping sound, compared to the whoosh of the digital the sidebands.
It does seem to follow the highest peaks in modulation, but I'll have listen more...it would make sense.
First noticed it one night last week listening to WSM, same noise and proportion after a 20 mile drive to work.
Same noise with only radio on, car off. Audible on all radios here at home.
Did hear this on KFUO on St Louis about 5 years ago, the CE confirmed it had crashed and wouldn't decode.
He was expecting a new ibiqui-box, don't know how it worked out.
They had the sparkles way off to the sides, and maybe even wider out than the present case.
I don't recall the analog audio being "fuzzed" on KFUO as WSCR is now.
charming sound of a torn speaker cone, with a peculiar raspy buzz that rides the highest peaks.
They had gotten it cleaned up 99%, but now it's back, and it brings a new friend.
From 640 to 650, and again at 690 to 700 is a crackling sparkle sound that to me sounds like
motor brush noise or a motor/machine vibrating/buzzing/loose/bad grounding/etc.
This is just below/above the "normal" range of the digital sidebands, and has a very different nature,
a much more distinctive almost popping sound, compared to the whoosh of the digital the sidebands.
It does seem to follow the highest peaks in modulation, but I'll have listen more...it would make sense.
First noticed it one night last week listening to WSM, same noise and proportion after a 20 mile drive to work.
Same noise with only radio on, car off. Audible on all radios here at home.
Did hear this on KFUO on St Louis about 5 years ago, the CE confirmed it had crashed and wouldn't decode.
He was expecting a new ibiqui-box, don't know how it worked out.
They had the sparkles way off to the sides, and maybe even wider out than the present case.
I don't recall the analog audio being "fuzzed" on KFUO as WSCR is now.