Hi folks,
I haven't been on here in ages so I'm catching up on lots of threads.
As for KALW they have long (20+ years) had automated mono/stereo switching, and indeed the reason was to extend the daytime programming range, which is heard largely when people are commuting. With a mono signal listeners don't get multipath problems they'd get with stereo. KALW has 1,900 watts and KQED-FM has 115,000, yet, on places like the Bay Bridge KALW is the cleaner listen. The automated mono/stereo switching was implemented by the late Dave Evans, who was chief engineer at the time.
I haven't been on here in ages so I'm catching up on lots of threads.
As for KALW they have long (20+ years) had automated mono/stereo switching, and indeed the reason was to extend the daytime programming range, which is heard largely when people are commuting. With a mono signal listeners don't get multipath problems they'd get with stereo. KALW has 1,900 watts and KQED-FM has 115,000, yet, on places like the Bay Bridge KALW is the cleaner listen. The automated mono/stereo switching was implemented by the late Dave Evans, who was chief engineer at the time.