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Weird thing happened on the way to work this morning. I commute down Route 31 everyday and Philadelphia stations tend to come in strongest, along with 101.5. I typically toggle between 90.9 (WHYY-Philly), 93.3 (WMMR-Philly), and 101.5. Each was barely listenable this morning. 93.3, a Classic Rock station with a morning drive show (Preston and Steve-hilarious) was getting strong interference from a country station on the same frequency which, by Googling the call letters I found is in Georgia! 90.9 was getting some kind of Classical Music station, and 101.5, normally strong pretty much everywhere was drowned out until I was practically within spitting distance of the transmitter. Is there some kind of atmospheric thing going on that is causing this? I know that HAM and CB operators can get signals from extreme distances sometimes due to a phenomenon known as tropospheric ducting (slang term "the skip") but I didn't think that FM signals were affected by it?
Thank you for posting this! I drove to the Toms River area today and just about all of my channels had interference. I knew it was something weird...tropospheric ducting...learn something new every day!
I'm having the same problem. I'm in Middlesex county and I normally listen to Philadelphia stations (including WHYY). But lately this week they're not coming in well at all. In the past I've had no problems listening to them, even in Somerset County. I don't know what's happened to them.
I noticed the same thing when driving to work this morning. I live just 12 miles outside NYC and I could barely pull in any of the NYC radio stations. I was able to pull in some Philly stations and a station from Allentown, PA. This type of ducting is usually common in the early morning hours during summer, but today's seemed especially strong.
Very interesting. I never heard of this and it certainly explains why on some days my radio stations are clear and others I can barely make out what's on. I found this website that shows the strength of the TD:
Tropospheric ducting happens often during the summer months, sometimes you don't hear a local station but one several states away. Happens a lot.
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