I was going to make a reply on the 1070 thread but since E Skip season is unfortunately done and there's quite a while until any worthwhile nighttime AM DXing opportunities, I thought it a good time to think about daytime AM DXing and start a separate thread to reply to this interesting and informative post.
While daytime AM reception along the Gulf coast in central Florida is so much better than only a couple miles inland, I agree that electrical interference can put a damper on it depending exactly where you go.
While there's good reception in Clearwater Beach, the reception on Honeymoon Island only a few miles north is SO much noticeably better. It's probably the best spot in all of Florida and for a reason.
It's not only a lot more isolated from the mainland but there's no electrical interference at all. Here's a map so you can click it on, zoom out and see.
https://www.google.com/search?q=honeymoon island&rct=j
On Honeymoon Island, you can get some stations that you can't hear at all on Clearwater Beach.
For example, here's KTRH from Houston @ 775 miles.
It's behind WYGM but the station ID is heard at 12 seconds into the video. This is from when the station from Mexico was off the air.
http://www.youtube.com/watch?v=2WcH0JN1irg
Here's WSHO (only 1 kw) from New Orleans @ 465 miles. It can be heard a bit on Clearwater Beach but not nearly as good.
http://www.youtube.com/watch?v=djAgueBwbt0
Here's what 790 AM sounds like midday. It and many other frequencies sound more like what an AM frequency might sound like at night.
This was made in late winter but it sounds the same in summer.
http://www.youtube.com/watch?v=hEWZwxHfkzo
Here's what 1030 AM sounds like on Honeymoon Island. The station didn't stop for an ID break but it had to be KCTA from Corpus Christi being that it was a religious preacher in the background of the closer station Oviedo.
http://www.youtube.com/watch?v=GsW21MVXM8Q
And while I've never heard anything audible there from KNVS, there is always that co frequency interference fluttering when the radio is faced in the direction of Texas.
Don't know what else it could be but from KVNS.
http://www.youtube.com/watch?v=gjDPHQl6owY
Those are a few of my many catches from all the times I've been there.
If you're ever in the area, it's well worth the extra time and the $4 to get into Honeymoon Island State Park.
Cyberdad, next time you're down this way, hope you can get out there. You will notice the difference from St. Pete Beach for sure.
I have always found that places with "salt air" are horrible DX locations. The salt in the air coats power line insulaters, allowing leakage. The salt corrodes contacts on transformers and in substations and individual home and business drops, and even builds up where lengths of line are joined. I think it even effects the noise that the various electrical components of a car radiate.
Twice I lived on the beach in Puerto Rico in the Condado and Isla Verde areas of San Juan. Very poor DX. When I moved inland into the hills of Guaynabo and Río Piedras, 7 or 8 miles inland, noise was much lower and DX was quite good.
My only good beachfront DX was when I ran 6 50' extension cords right onto the beach and sat with a folding table with a loop and my Drake R8. Lots of low powered Brazilians and other good deep South American things as well as some Western Africa catches. This was at Guánica in SW Puerto Rico.
While daytime AM reception along the Gulf coast in central Florida is so much better than only a couple miles inland, I agree that electrical interference can put a damper on it depending exactly where you go.
While there's good reception in Clearwater Beach, the reception on Honeymoon Island only a few miles north is SO much noticeably better. It's probably the best spot in all of Florida and for a reason.
It's not only a lot more isolated from the mainland but there's no electrical interference at all. Here's a map so you can click it on, zoom out and see.
https://www.google.com/search?q=honeymoon island&rct=j
On Honeymoon Island, you can get some stations that you can't hear at all on Clearwater Beach.
For example, here's KTRH from Houston @ 775 miles.
It's behind WYGM but the station ID is heard at 12 seconds into the video. This is from when the station from Mexico was off the air.
http://www.youtube.com/watch?v=2WcH0JN1irg
Here's WSHO (only 1 kw) from New Orleans @ 465 miles. It can be heard a bit on Clearwater Beach but not nearly as good.
http://www.youtube.com/watch?v=djAgueBwbt0
Here's what 790 AM sounds like midday. It and many other frequencies sound more like what an AM frequency might sound like at night.
This was made in late winter but it sounds the same in summer.
http://www.youtube.com/watch?v=hEWZwxHfkzo
Here's what 1030 AM sounds like on Honeymoon Island. The station didn't stop for an ID break but it had to be KCTA from Corpus Christi being that it was a religious preacher in the background of the closer station Oviedo.
http://www.youtube.com/watch?v=GsW21MVXM8Q
And while I've never heard anything audible there from KNVS, there is always that co frequency interference fluttering when the radio is faced in the direction of Texas.
Don't know what else it could be but from KVNS.
http://www.youtube.com/watch?v=gjDPHQl6owY
Those are a few of my many catches from all the times I've been there.
If you're ever in the area, it's well worth the extra time and the $4 to get into Honeymoon Island State Park.
My experience at the beachfront places where we stay in St. Pete Beach and Pensacola has been somewhat similar. I can go out on the balcony (three and eight stories up, respectively) and AM reception is so-so. But if I'm 100 yards away from he building on the beach itself, things seem to magically open up. Especially at the Pensacola location....23 miles of horrible ground conductivity away from the city. There...unlike St. Pete Beach...there are also no local AM band pests to gum up the works. Mexico (what's left of the AM band), Cuba, and other points around the Caribbean come roaring in.
Cyberdad, next time you're down this way, hope you can get out there. You will notice the difference from St. Pete Beach for sure.