All accepted registrations through September 8 at 11:45a ET have been activated. Thank you! -M.W.

Please note: Terms of Use have been amended effective June 9, 2019. Make sure you are aware of the new rules! Please visit this thread for details: viewtopic.php?f=16&t=30571

All user accounts that have been inactive since January 1, 2017 have been expunged. If you are one of these users and wish to submit a new post, please re-register. Thank you.

AM Radio Signal Patterns

The technical side of broadcasting. Think IBOC is a sham? Talk about it here! How about HDTV? Post DX reports here as well.
User avatar
Turkeytop
Posts: 3245
Joined: Mon Aug 16, 2010 9:27 pm

AM Radio Signal Patterns

Post by Turkeytop » Sun May 26, 2019 9:29 pm

A coule of years ago, someone posted these links to a really great website that displayed the daytime and nighttime patterns for every AM station on every frequency in North America. It was a really good tool for identifying DX stations.

Now, when I try to open any of them up, the maps are dark and I get an error message saying
"This page can't load Google Maps correctly."
Somebody please try it and see if you get the same result. I don't know if the problem is with the website or with my computer
http://www.nf8m.com/patternmaps_night.html

http://www.nf8m.com/patternmaps_day.html



innate-in-you
Posts: 284
Joined: Wed Oct 31, 2018 8:54 am

Re: AM Radio Signal Patterns

Post by innate-in-you » Sun May 26, 2019 10:24 pm

Interesting.

I'm able to see the patterns, though I see the error message window as well. It's opaque, but I can move the map around to get around the problem.



fairbankshockeypuck
Posts: 37
Joined: Wed Jun 08, 2011 4:18 pm

Re: AM Radio Signal Patterns

Post by fairbankshockeypuck » Mon May 27, 2019 9:25 am

Same here...error message but still able to navigate.....



User avatar
Turkeytop
Posts: 3245
Joined: Mon Aug 16, 2010 9:27 pm

Re: AM Radio Signal Patterns

Post by Turkeytop » Mon May 27, 2019 10:07 am

The maps used to be bright and easy to read.



bmw
Posts: 1195
Joined: Sun Dec 05, 2004 1:02 am

Re: AM Radio Signal Patterns

Post by bmw » Mon May 27, 2019 10:50 am

It is an issue with google's API. They recently starting charging people money to host their maps on their websites. This is the reason the radio locator website abandoned google maps and went back to their original maps.



User avatar
Turkeytop
Posts: 3245
Joined: Mon Aug 16, 2010 9:27 pm

Re: AM Radio Signal Patterns

Post by Turkeytop » Mon May 27, 2019 11:07 am

bmw wrote:
Mon May 27, 2019 10:50 am
It is an issue with google's API. They recently starting charging people money to host their maps on their websites. This is the reason the radio locator website abandoned google maps and went back to their original maps.

Thanks. That explains it.



k8jd
Posts: 376
Joined: Fri Jun 28, 2013 3:35 pm
Location: Commerce, MI

Re: AM Radio Signal Patterns

Post by k8jd » Mon May 27, 2019 3:18 pm

I still can see the map and patterns, but not quite what they used to be like.
The google maps error goes away if you click "OK"



User avatar
Radio Chili
Posts: 65
Joined: Sat Apr 23, 2005 11:28 am
Location: Way down in the sunny South.

Re: AM Radio Signal Patterns

Post by Radio Chili » Tue May 28, 2019 9:54 pm

Thanx for posing the question, Turkey! I was very bugged many months ago when this change happened and I couldn't figure out how to get it back the way it was and I tried everything! At first, I thought it was my computer too until I tried the other 4 rigs in the house and my smartphone and see the same prob on all of 'em. It's very hard to enjoy the site with Googles 'tainting' as they have. Wish the owner would 'switch' to a new map source too like Radio-locator did.

Until this post, I figured someone had just hacked the site?



k8jd
Posts: 376
Joined: Fri Jun 28, 2013 3:35 pm
Location: Commerce, MI

Re: AM Radio Signal Patterns

Post by k8jd » Wed May 29, 2019 2:15 pm

Radiolocator went back to a simple map with limited capability thet they had used perviously to the nice, interactive one !
.



Rich
Posts: 74
Joined: Sun Dec 26, 2010 3:28 pm
Location: Illinois
Contact:

Re: AM Radio Signal Patterns

Post by Rich » Thu May 30, 2019 5:54 am

Radio Chili wrote:
Tue May 28, 2019 9:54 pm
... It's very hard to enjoy the site with Googles 'tainting' as they have. Wish the owner would 'switch' to a new map source too like Radio-locator did. ...
The latest download of that software from the link below removed the Google map overlay message, as well as making several other changes. Below is a sample of a current map display.

US MEDIUMWAVE PATTERN REFERENCES
by RADIO-TIMETRAVELLER © 2019
http://radio-timetraveller.blogspot.com

For a data point, in 1964 on a trip to the World's Fair I was able to listen to WJR on my Volkswagen's stock radio on the PA Tpke near Somerset, SE of Pittsburgh — which is about at the 0.1 mV/m contour shown on this map.

Image



k8jd
Posts: 376
Joined: Fri Jun 28, 2013 3:35 pm
Location: Commerce, MI

Re: AM Radio Signal Patterns

Post by k8jd » Mon Jun 03, 2019 6:11 pm

Turkeytop, I tried to check out the websutes in the reply post and got redirected to some endless advertizing , for the first two sites linked to ! RRRrrr :(



User avatar
Turkeytop
Posts: 3245
Joined: Mon Aug 16, 2010 9:27 pm

Re: AM Radio Signal Patterns

Post by Turkeytop » Mon Jun 03, 2019 6:59 pm

For me, the old links seem to be working again, with the proper maps.



Post Reply Previous topicNext topic