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Expanded AM band oddity

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k8jd
Posts: 603
Joined: Fri Jun 28, 2013 3:35 pm
Location: Commerce, MI

Expanded AM band oddity

Post by k8jd » Wed Apr 28, 2021 5:21 pm

Just found a station on 1700 kHz onlyrunning 5 KW daytime hours and 1 Kw night. Wonder why only 5 K when the standard power is 10 kw day on the band 1610-1700 kHz ???
Any ideas? They have a single tower, 90 deg. Electrical height, up in the suburbs of Dallas, TX !



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Ben Zonia
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Joined: Sat Jun 03, 2006 10:35 pm
Location: Honor

Re: Expanded AM band oddity

Post by Ben Zonia » Wed Apr 28, 2021 7:16 pm

They applied to move the Day site to the Night site with 10000 watts. When they completed the move, they were getting all kinds of complaints of blanketing interference. They went to 5000 watts Day on STA, but I don't see anything about it being a permanent licensed facility. Very odd indeed. Some stations moved closer to the border, and had to reduce power, but they applied for it and were licensed. WPRR 1680 moved to Ada, closer to the Canadian border, and reduced power to 680 watts Night. Some stations on the Expanded Band run at close to 10000 watts DA at Night, but they don't send their signal toward any border, they send it into the ocean. They are still less than or equal to the equivalent of 1 kW toward Canada and Mexico.

https://licensing.fcc.gov/cdbs/CDBS_Att ... &exhcnum=1


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k8jd
Posts: 603
Joined: Fri Jun 28, 2013 3:35 pm
Location: Commerce, MI

Re: Expanded AM band oddity

Post by k8jd » Thu Apr 29, 2021 3:22 pm

OK Ben, I see about 26 houses within 1/4 mile of the tower. It's pretty much in a residential subdivision !!
Can see a problem !
I have seen ham Radio Operators posting, on QRZ.com, about 50 kW AM stations two, three miles away wiping them out on 160 M (1.8-2.0 MHz).



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WOHO
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Location: 2965 Pickle Rd.

Re: Expanded AM band oddity

Post by WOHO » Fri May 07, 2021 5:14 pm

I could never understand why one of the 1430's didn't get an X-Band allotment: either WION or WFOB?



k8jd
Posts: 603
Joined: Fri Jun 28, 2013 3:35 pm
Location: Commerce, MI

Re: Expanded AM band oddity

Post by k8jd » Fri May 07, 2021 6:31 pm

Only know of two ex-band stations in MI, both on the far western side of the lower peninsula.



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