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WNLA App for 105.7 @ 50 kw

M

mikl73

A very nice upgrade has been applied for by WNLA. It's 50KW at 105.7 which has been made possible since KRKD-Dermott has been deleted.

Application name shows: DELTA RADIO NETWORK, LLC

60 Dbu covers Greenville, Indianola, Cleveland, Shelby, Drew, Ruleville, Inverness, Moorehead, Hollandale, Lake Village, Dermott, McGhee, and falls short right at the city limits of Itta Bena to the east.

This will make WNLA one of the better positioned signals to cover this part of the Delta.
 
There is also an app for WLTM 97.9 to go 100kw but moving the stick out of town to the south South West of Hollandale.
 
I can't answer the why on that Zach but it was that way as long as I can remember. There are a couple people here who worked for the original owner when it was WBAQ who may have an answer.
 
It's an ERI 37M-6BC and the ERI website doesn't have any info on such a model. Maybe it's so old it was before CPOL. The application accepted for filing shows 100kW V and H, so a new antenna is clearly in the works. Maybe Larry Fuss will give us a little more info.
 
The original WBAQ-FM antenna was on a short tower mounted on top of the 3-story May Building. It was a 6-bay setup with horizontal rings. I would imagine they were installed when the station went on the air in 1970.
 
Rob: I think when they moved off the building, they kept the old antenna...in the early days. horizontal was the standard. JBI
 
That's what I was guessing, to minimize interference to another station. I believe I recall many 88.1 stations near an analog TV channel 6 were horizontal while the TV stations used circular(?). I really don't know what I'm talking about, but it is something I had noticed and wondered about in the past with stations on 88.1. I also seem to recall some 88.1's adding vertical power after the DTV switch.
No, I can't cite an example.

What is the advantage or disadvantage of using more horizontal or vertical power? A lower power bill and cheaper equipment?
 
One of the wise ones will know for sure, but I believe the noncomm band stations running vertical only were to protect stations on RF channel 6, as VHF TV signals are usually horizontally polarized. Or were. I dunno what the deal is now with digital. I'm pretty sure digital on channel 6 is still protected.
 
It's actually pretty uncommon for a TV station to be using CPOL, although some have done so because of the need to change their antenna for ATSC. Generally TV runs HPOL. Just about every radio station with an antenna less than 30 years old is running CPOL. There is no advantage, except very rare exceptions, for an FM to run HPOL. There are numerous examples of FM's running VPOL, especially LPFM's and boosters. The idea with VPOL is you're trying to hit those car antennas. I know of only one recently constructed FM that is running HPOL, and that is KSIQ, Jacumba, CA. They also mounted their system where it would be blocked by terrain to minimize any signal getting into San Diego, then put up a VPOL booster to get coverage into San Diego. HPOL at the main and VPOL on the booster minimizes interference to the booster, which is what they're really trying to use to achieve San Diego coverage. The rumor, along with some actual test figures, is that KSIQ has never put the full 25kW into their main antenna.
 
The big hidden secret is C-POL in TV turned out to be a bust due to the way the V component interacts with other objects and the 6mc bandwidth. In most (if not all) cases it made ghosting worse, so several stations quietly reverted to H-pole only. One prominent proponent delivered a post-mortem paper saying that “after all the study and expense, the outcome was disappointing”. One old TV boss of mine once stated that “transmitting pictures is no big deal, getting to arrive at the TV set all at the same time; now that’s another problem!”. FM was a more valid application; however, there are enhanced multipath issues for the same reasons but bandwidth is a lot less than TV. Coincidence of V to H components is important in FM though. There are wide measured variations in the V component as opposed to the H component and obviously gets worse as the V-pole becomes greater than H.
Now return to the already hijacked thread.
Very best,
w/
 
poledo said:
That's what I was guessing, to minimize interference to another station. I believe I recall many 88.1 stations near an analog TV channel 6 were horizontal while the TV stations used circular(?). I really don't know what I'm talking about, but it is something I had noticed and wondered about in the past with stations on 88.1. I also seem to recall some 88.1's adding vertical power after the DTV switch.
No, I can't cite an example.

What is the advantage or disadvantage of using more horizontal or vertical power? A lower power bill and cheaper equipment?
Click to expand...

Horizontal polarization is required by the FCC for all TV stations and all commercial FM stations.

Until the mid-1980s it was also required for non-commercial FMs. At that time, the requirement that stations below 92MHz protect channel 6 TV stations was introduced. (it applied to the entire 88-92 band, not just 88.1 -- but the protection requirements were stricter the closer you got to 88MHz) One means for achieving this protection was to use vertical polarization instead of horizontal. (or with a horizontal power less than vertical) Theory being that TV receiving antennas would be horizontally polarized, and thus would reject the FM signals. I doubt it did much good in practice.

All stations may optionally add some amount of vertical power, not to exceed the horizontal. Nearly all FM stations have done so. It's MUCH less common among TV stations. (I believe the station I work for was one of *two* circularly-polarized analog TV stations in Tennessee; many states didn't have any.)

Yes, running horizontal-only is less expensive. The vertical power has to come from somewhere. That somewhere is your local electric utility -- and you have to buy & maintain a transmitter to convert that utility power into RF.

Quite a few FM stations were able to drop the TV-6 protection after the digital conversion -- because the TV stations were no longer broadcasting on channel 6. You still punch in "06" on your remote to watch WABG-TV. But the station is actually broadcasting on channel 32, where it is quite immune to interference from FM stations.
 
Watt Hairston said:
The big hidden secret is C-POL in TV turned out to be a bust due to the way the V component interacts with other objects and the 6mc bandwidth. In most (if not all) cases it made ghosting worse, so several stations quietly reverted to H-pole only. One prominent proponent delivered a post-mortem paper saying that “after all the study and expense, the outcome was disappointing”. One old TV boss of mine once stated that “transmitting pictures is no big deal, getting to arrive at the TV set all at the same time; now that’s another problem!”. FM was a more valid application; however, there are enhanced multipath issues for the same reasons but bandwidth is a lot less than TV. Coincidence of V to H components is important in FM though. There are wide measured variations in the V component as opposed to the H component and obviously gets worse as the V-pole becomes greater than H.
Click to expand...

Interesting observation.

Mine are strictly empirical, but IMHO C-POL for analog TV worked VERY well.

I came from a market with a single low-VHF station, horizontally polarized. I lived in various apartments around the city, and in all of them multipath was a significant problem on channel 3. (that includes the first apartment, from which I could clearly see the tower)

Here in Nashville, channels 2 and 8 were H-only, while 4 and 5 were circular. Indoor-antenna reception of channels 4 and 5 was VASTLY superior to channels 2 and 8 -- nowhere near the ghosting issues.

Now, one has to take that with the understanding that neither Madison nor Nashville is exactly flat, and channels 2, 4, and 5 transmit from vastly different sites. Still, I was quite impressed by circular polarization here. Not entirely certain what would happen in Mississippi, which *is* flat...
 
WHBQ 13 in Memphis has gone to an Elliptical Polarization which as I am told this adds a VPOL element to the signal. Reception within the city reception via standard rabbit ears has become much easier.
 
Just Thinking (Watch Out) That WNLA FM 105.5 Indianola, MS Was 50K When I Was There In The 90's?
I Don't Get All This Tech Stuff, However I Will Be Your Receptionist, DJ, PD, Personal Assistant,
Offer Award Winning Excuses For You "Being Late" For Meetings, Fill-In,
Knock Out Production On New Spots That Needed To Be On The Air Yesterday, But You Just Phoned Me 30 Minutes Ago & It's Already In Rotation, Boy-Friday, (S-M) & Boyfriend If I Must.

Oh - Speaking Of WNLA (I Don't Tell This To Many) Brophy Fired ME From There.
That's The ONLY Job I Have Eve Been Told To Take My Show On The Road!!
What's Really Sad I Cried In His Office !
I Have Moved On Since Then.
 
Sorry, it was impossible then on 105.5 at their location.
Consider yourself blessed that you moved on.
My first job was there in 1958, under the original ownership.
A nice operation at that time, from 134 Baker Street.
JBI
 
Thanks JBoyd For The Reassurance - Moving On !

I Hope One Day To Be As Successful As You.

I Saw Where You Posted About Stations In The Delta Going Up For Auction.
Tried The F.C.C. Database Searching Auctions, But Couldn't Find Anything.

I Am Interested In 95.3 (Drew) (Cleveland) - The Former WKZB 95.3 Drew, MS.
I Have A Doctor Wanting Back, But I Can't Locate Anything. (hmmm User Error!)

In Your Professional Opinion What's A Ballpark Figure You Think 95.3 Will Sell For ?

I Appreciate It.
Ken
 
Check the fcc web page and locate auction 73, I believe it is...it's the latest one.
I do not have a crystal ball, but there is a c-2 and two a's in the same auction for the Cleveland
market. I woild say Drew would sell for little more than the minimum. If Flinn wants in the market...look out! But what does it hurt to try? Nothing ventured, nothing gained....J
 
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