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AM Frequency of the Week: 1070

Thank you for commenting,Mr. Eduardo...was hoping
you would clear some of this up.
WERC always had a better nighttime signal here than
WAPI did for several reasons.
Was listening to 'API a few weeks ago while out in the
car and all 50kw of them got drowned out by the
incessant power line racket...sad.
Understand you were GM of 'ERC in the 70's.
 
Never did hear WBRC/WERC around Sunset with 5 kW Nondirectional Days no matter how I tried after Jesse Champion left our High School in Flint to return to Birmingham as Newscaster at 960 in late 1969. Between WWJ, WSBT, and WDBJ/WFIR, WBRC/WERC was predictably difficult. We did talk about how WVOK 690 sometimes boomed in at Sunset and played "Dixie" when they signed off. Back then I didn't know what the WBRC/WERC pattern was like. I had just bought the 1969 WRTH from Allied. Mr. Champion was concerned that 960 might reduce power like WSGN 610 (5/1 U2) . I assured him that WBRC was 5 kW Night although Directional (5 U2).
 
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I rarely hear 1070 from Birmingham here. Usually, 1070 is almost nothing daytime, and at night, a weird mix of stations. WFNI is the most often heard. That is what I am hearing right now in Charleston with a decent signal, with a Spanish signal, and a weak WAPI under it (they have Mark Levin at night).
 
Cyberdad,
Just remembered this site...here is a big chunk of
early radio and TV here...it's also a microcosm of
AM's glory days,the beginnings of FM,etc.
To keep it legit here,they show a QSL verification
card 610 sent out to DXers ( didn't know that ):

http://www.birminghamrewound.com/radio-tv2.htm

BTW they say the first WBRC-FM of the late 1940's ran
just 500,000 watts (no kidding)!
 
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Update: Just when I was wondering if CHOK might be off because I hadn't heard it for a while....

I had the SRF37 on 1070 a couple of hours before sunrise this morning, and there it was. I had nulled WFNI and WTSO in yet another futile attempt to catch KNX, but the result was CHOK mixing with KHMO. KHMO was getting the better of it, but not by all that much, and I was able to positively ID both stations.

And rtc....thanks for the link. I'm always interested in history. 500KW for WBRC-FM....wow! I wonder what they thought they could accomplish with all that brute force!
 
CHOK can't have a full power FM because they already own two in Sarnia. They have an FM repeater though. When CHOK went from 5000 watts nondirectional Days to 10000 watts directional Days, the three tower dogleg pattern was designed to maintain the 5000 watt nondirectional level toward WOAP 1080 Owosso and WIBC 1070 Indianapolis. It matches the 5000 watt nondirectional level very closely for much of the pattern. So you are getting the equivalent 5000 watts when they go to Day pattern, probably 15 minutes or in some months possibly 30 minutes before Chicago sunrise. As I noted in another thread, back in 1974 when WJJD was allowed 50 watts presunrise during year around DST, it was the same strength as KSL with 50000 watts in Southeast Michigan. So CHOK on Day pattern should be much stronger than KNX, more than 10 times stronger on average.
 
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Cyberdad,Mr. Eduardo could better answer "why
superpower postwar FM stations" but there were
probably several reasons:

FM had just been moved from the original 42-50 mhz band...
propagation at vhf was not well understood...
some of the early FM receivers did not work all that
great at 100 mhz (for one thing many drifted all over
the place).

When FM was formally established in 1941 it was
put on ice by the war...the "postwar FM boom" went
south by 1948 when TV began to establish itself.

No doubt 500kw got out far better than anyone
imagined,too.

BTW,on FM they use Effective Radiated Power...that
means the tx power times the gain of the antenna.

So if a 100kw FM uses a 3 db gain antenna,the "real"
tx output is 33kw.

(On AM it's the output of the tx.)
 
Schroedingers Cat; .....When CHOK went from 5000 watts nondirectional Days to 10000 watts directional Days said:
Thanks for the info. When I heard CHOK before sunrise a few days ago, it was a full two hours or so before my local sunrise. Between 4:30 and 5:00 CST. I hadn't heard them at all....at least in identifiable form....for the last couple of years. The local on 1030 two miles away from me didn't help matters, but they've been off during the pre-dawn hours lately. My guess is that when I was hearing them regularly and on top several years ago, the night pattern was not conforming up to standards. If it was I'd be in a severe nighttime null. That would explain things. Perhaps they're now starting to "leak a little'', which possibly explains why I did hear them again but only with Indy and Madison nulled.
 
Daytime in San Antonio is a very weak KOPY, a Spanish-language religious station in Alice near Corpus Christi.

Nighttime is plagued by nasty IBOC hash from KRLD on 1080. I’ve learned that it can mitigated somewhat by actually tuning a bit toward the offending station.

XESP in Tlaquepaque is most dominant at night. Occasionally KFTI will peek through. Also, I heard KHMO briefly once about two years ago. If I null out XESP by aiming NW/SE, I can sometimes hear KOPY as well as KWEL in Midland, TX, popping in and out weakly. I’ve heard religious broadcaster WNVY in Cantonment, FL, once; it was during the fall two years ago.

During sunset WDIA will often show up for a while. Also, I caught a weak WAPI once during a January sunset.

Around sunrise, KNX often comes in with a surprisingly listenable signal when I’m aiming W-NW.

I'm somewhat surprised that I've never heard KNTH in Houston, although its signal is aimed away from me.
 
By the pattern map on Radio Locator, I shouldn't have had much of a signal in Lafayette, IN from CHOK but they would overtake WIBC nightly. Wonder if they weren't going to night pattern in 1995.


CHOK can't have a full power FM because they already own two in Sarnia. They have an FM repeater though. When CHOK went from 5000 watts nondirectional Days to 10000 watts directional Days, the three tower dogleg pattern was designed to maintain the 5000 watt nondirectional level toward WOAP 1080 Owosso and WIBC 1070 Indianapolis. It matches the 5000 watt nondirectional level very closely for much of the pattern. So you are getting the equivalent 5000 watts when they go to Day pattern, probably 15 minutes or in some months possibly 30 minutes before Chicago sunrise. As I noted in another thread, back in 1974 when WJJD was allowed 50 watts presunrise during year around DST, it was the same strength as KSL with 50000 watts in Southeast Michigan. So CHOK on Day pattern should be much stronger than KNX, more than 10 times stronger on average.
 
We can't send our signal toward San Antonio due to KOPY 1070 in Alice, Texas. Therefore, we have to send our signal out to the Gulf Of Mexico. You can get us as far as Rosenberg in the day (although scratchy). At night, forget it. We go from 10KW to 5KW with a tighter pattern. We broadcast from just north of Houston with eleven towers.
 
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We can't send our signal toward San Antonio due to KOPY 1070 in Alice, Texas. Therefore, we have to send our signal out to the Gulf Of Mexico. You can get us as far as Rosenberg in the day (although scratchy). At night, forget it. We go from 10KW to 5KW with a tighter pattern. We broadcast from just north of Houston with eleven towers.

KOPY was a great radio station back in the day. The "Country Giant". Alice Coyote Football, Texas A&I Javelinas football, SWC Football. My Grandmother lived in Rockport, 70 miles away and that was her favorite station. Now, sadly, it's gone the way of many other South Texas small-town AM radio stations........become one of many "Spanish Religious" outlets like the former KIKN & KINE or just close up shop altogether like ones in Port Lavaca, Falfurrias, Cuero & Hallettsville
 
We can't send our signal toward San Antonio due to KOPY 1070 in Alice, Texas. Therefore, we have to send our signal out to the Gulf Of Mexico. You can get us as far as Rosenberg in the day (although scratchy). At night, forget it. We go from 10KW to 5KW with a tighter pattern. We broadcast from just north of Houston with eleven towers.

Hi Chuck. Until I saw your post, I had forgotten about a video I made when I used to live in Florida.

Right out at the Gulf in central Florida on Honeymoon Island, it's an AM daytime DXer's dream. The AM band sounds like it normally would at night with so many stations coming across the salt water from the panhandle to Texas.

KTRH is easily heard there all day even in summer under WYGM and I've conformed it was them with an ID too but it wouldn't seem as if they could be heard all considering their daytime pattern and the amount of signal coming that way.

So your post reminded me that I also had made a video of what's on 1070 in the middle of the day. The religious station I think is from Tallahassee or Cantonment, Florida and WKII from Port Charlotte was playing oldies at that time.

I had wondered if the talk station in the background could possibly be KNTH. It doesn't sound like a religious station either.

https://www.youtube.com/watch?v=XGBMF2R6i0w
 
Bay area: All KNX, all the time. Well, nighttime anyway. Not that great a signal; perhaps I'm in that cancellation zone. Or maybe it's a function of IBOC, which would also help explain why I hear so little on 1060 and 1080.
 
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Wow, this FotW really generated some interesting discussion!

Here on the gulf coast of Alabama, 1070 is pretty active. During the day it's WNVY Cantonment, Floriduh and at night it's a mix of WAPI and WDIA, with them usually taking turns at dominance for a few minutes at a time. WAPI is the second nighttime B'ham signal and WDIA the second "Delta" signal available here at night: 960 brings in WERC from B'ham and WABG from Greenwood on the regular.

I don't have total confirmation of it, but I am fairly sure I've heard KNTH once here, too.

One reason may be their two antenna towers.They were
originally on 1140 or some such and had to move to 1070
in the great 1941 band reset.They had to add a cage-like
structure to the top of each tower to get the tx to load at
the new frequency.

I bet part of the efficiency issue with WAPI is their tower site is up on a ridge overlooking the city, and the ground conductivity there may be worse than the more fertile valleys where 850 is located (near Tarrant City) and 690 (Midfield). I have some family up near the WAPI site and it always seemed like a poor place for an AM site, with lots of rocky outcroppings and sandy soil.

Both 850 and 690 got out much better...a distant cuz
said in the 60's he talked to 690 about an engineer's
job and after noticing their tx's voltage/ammerter he did
the math mentally and came out with something like
70kw!

The guy admitted it,said "we turn it back when 'they're'
in town"...of course 690 was a daytimer then.

I believe it. I had (other) family in Midfield in the 80's and one of my memories of staying with my granny (that's southern for "grandmother", lol) was being able to pick up the telephone anytime during the day and hear country music from WVOK. It's a wonder her metal fence didn't resonate, too. She was close enough that the top beacon of the tower was visible through the trees in winter. :cool:

Dunno how things are now under current ownership, but 690 was always THE big signal in my experience when I lived in the area. A decent car radio could hold it well south of Montgomery on I-65, until the New Orleans station started to take over closer to Mobile. It was also good for getting most of the way into Atlanta, despite 50 kW WCNN (or whatever it is now) on 680.

I always knew 690 was the biggest daytime signal in town, but I wasn't aware that they sometimes used a littler "hamburger helper"...LOL. Explains why when I'd hear them here in Northern Illinois before signoff during their run as a daytimer, the signal would usually be quite good!

I used to travel up I-65 to Nashville or Louisville on a semi-regular basis back in the early 2000's and one thing I noticed is that 690-850-1070 and Huntsville's 1550 were ALWAYS rock solid right around sunset, from north of Nashville all the way up into Indiana. I never did understand why, exactly, but it was neat being able to hear "home" so reliably from so far away, even if it didn't last.

As for the B-ham 850, I used to listen occasionally during their run as an oldies station (WYDE..."wide 85"). Around the mid or late 90s, IIRC....and usually on runs to-from Atlanta. I didn't think their signal was particularly impressive in those days, and even wondered if they were actually running 50kw. Of course, ground conductivity was bad, and I was unclear whether there might be a null in the direction of I-20. R-L shows them making just about all the way to Atlanta, but I remember 850 being nearly spent by around Anniston.

That was my experience as well. 850 was not even that great of a signal west of downtown Birmingham. It must have been the combination of a peculiar pattern and the location northeast of town, but I remember it being a big, robust signal far into northeast Alabama, like up around Guntersville, and along Sand Mountain.

I know RTC has been critical of Crawford (and rightly so) for their cult-like embrace of IBOC on AM, but I will say that prior to that misstep, the engineer for the B'ham stations really did take good care of them. I think it ran C-QUAM stereo for a while before HD came along and I KNOW that 1260 did, and sounded pretty good with its oldies/nostalgia format. The station had been 9 kW days for a while and they got 850 back up to 50 kW days which really cleaned up the signal a lot. It's still "compromised" but they seem to be doing the best they can with it. IBOC excepted. ;)

We can't send our signal toward San Antonio due to KOPY 1070 in Alice, Texas. Therefore, we have to send our signal out to the Gulf Of Mexico. You can get us as far as Rosenberg in the day (although scratchy). At night, forget it. We go from 10KW to 5KW with a tighter pattern. We broadcast from just north of Houston with eleven towers.

I'm curious if you've ever had any DXers reporting reception from out in the gulf on cruise ships, or on oil rigs… even with all the noise in those places it seems like some of the stations (like WROA Gulfport) should put MASSIVE signals across the Gulf. Seems like WROA or someone similar had reports from Roatán, Honduras occasionally.
 
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Here in Cincinnati on the AM 1070 dial.
Daytime : WFNI (Really Weak)
Nighttime : Mixed Signals, and sometimes 1070 WFNI as a strong signal past midnight.
 
Updating what I wrote when this thread originally appeared, WFLI, Chattanooga has signed off, pending a sale. No ideaq if they'll sign back on with 50,000/5000 or a lowerpowered facility.
 
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