Actually, frequencies like that are typically used for the live audio links from the helo to various radio stations which partner with the sponsoring TV station for traffic reports and so forth. They can be interesting listening, although monitoring them (broadcast remote frequencies) is illegal for some strange reason (ECPA 1986).david,
Do you hear anything at all on the channels you listed? Probably some pretty cool listening if they are still active.
I would think with cell phones there would be little if any activity on them though.