I'm near San Diego, CA, and for me I'm going to disqualify L.A., as many of them can be heard in the daytime using a portable radio's built-in loopstick antenna.
I'd say for me, San Francisco Bay area in CA takes top honors. The stations include:
560 KSFO San Francisco - usually very weak, but can be heard most nights
610 KEAR San Francisco - was dominated by KAVL Lancaster (but could be heard sometimes), but now with KOGO's IBOC blocking it, this one would be very rare. (It may help that KOGO's transmitter is west of me, though.)
680 KNBR San Francisco - usually fairly clear every night, although a 50kW station on 690 that's 32 miles away can leave a bit of slop. (I can sometimes hear this midday as well, but it requires an external loop antenna.)
740 KCBS San Francisco - usually quite clear at night, even though I'm only about 7 miles from a 50kW (at night) station on 760. Any time KBRT Avalon is on, though, KCBS is a tough catch, but is still definitely possible as long as it's near sunset or sunrise. Middle of the day, though, best fuggedaboutit.
810 KGO San Francisco - usually fairly good at night, occasionally slopped on a bit by a 1kW station in Tijuana on 800. Can be heard in the daytime, but requires a loop antenna.
910 KNEW Oakland - I may have heard this once or twice some time when my local KECR 9 miles away was off the air, but otherwise it's nearly impossible from here.
1050 KTCT San Mateo - I've heard this a few times, but it was weak, and IIRC was duking it out with other signals. (It's been a while, though, so I don't remember for sure.)
1100 KFAX San Francisco - can probably be heard most nights, but isn't nearly the blowtorch signal that 680, 740 and 810 are.
1170 KLOK San Jose, CA - I've heard this on a few occasions, but it's tough with KCBQ being only 9 miles away (and sharing a transmitter site with 910 KECR). It helps a little that KCBQ cuts power at night from 50kW to 2.9kW, but even so, KLOK is rare here.
1310 KMKY Oakland, CA - I got lucky and heard this one once out from under a local 1kW Tijuana station on 1310.
1500 KSJX San Jose, CA - This is often the dominant station on a relatively quiet channel... and on radios with less than good sensitivity the channel may sound void of any signal.
1640 KDIA Vallejo, CA - This can be heard most nights here.
Now... what metro area have YOU heard the most stations from that you don't hear in the daytime?
I'd say for me, San Francisco Bay area in CA takes top honors. The stations include:
560 KSFO San Francisco - usually very weak, but can be heard most nights
610 KEAR San Francisco - was dominated by KAVL Lancaster (but could be heard sometimes), but now with KOGO's IBOC blocking it, this one would be very rare. (It may help that KOGO's transmitter is west of me, though.)
680 KNBR San Francisco - usually fairly clear every night, although a 50kW station on 690 that's 32 miles away can leave a bit of slop. (I can sometimes hear this midday as well, but it requires an external loop antenna.)
740 KCBS San Francisco - usually quite clear at night, even though I'm only about 7 miles from a 50kW (at night) station on 760. Any time KBRT Avalon is on, though, KCBS is a tough catch, but is still definitely possible as long as it's near sunset or sunrise. Middle of the day, though, best fuggedaboutit.
810 KGO San Francisco - usually fairly good at night, occasionally slopped on a bit by a 1kW station in Tijuana on 800. Can be heard in the daytime, but requires a loop antenna.
910 KNEW Oakland - I may have heard this once or twice some time when my local KECR 9 miles away was off the air, but otherwise it's nearly impossible from here.
1050 KTCT San Mateo - I've heard this a few times, but it was weak, and IIRC was duking it out with other signals. (It's been a while, though, so I don't remember for sure.)
1100 KFAX San Francisco - can probably be heard most nights, but isn't nearly the blowtorch signal that 680, 740 and 810 are.
1170 KLOK San Jose, CA - I've heard this on a few occasions, but it's tough with KCBQ being only 9 miles away (and sharing a transmitter site with 910 KECR). It helps a little that KCBQ cuts power at night from 50kW to 2.9kW, but even so, KLOK is rare here.
1310 KMKY Oakland, CA - I got lucky and heard this one once out from under a local 1kW Tijuana station on 1310.
1500 KSJX San Jose, CA - This is often the dominant station on a relatively quiet channel... and on radios with less than good sensitivity the channel may sound void of any signal.
1640 KDIA Vallejo, CA - This can be heard most nights here.
Now... what metro area have YOU heard the most stations from that you don't hear in the daytime?
