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Trophosphere Interference

If you haven't seen this site check it out: http://www.mountainlake.k12.mn.us/ham/aprs/path.cgi?map=na

It's a live map of VHF conditions gathered by ham radio sites around the country, it's reflective of TV & FM too.

Even if you're not into DXing it can be useful on those days when you get listener complaints on reception to see if distant station interference is the culprit.

I have it bookmarked in my iPhone and check it many mornings to see if there's any action (I've got to get a life huh)
 
That opening last Thursday was unreal on the TV side. Comcast in Houma for a several hours had some trouble picking up some of the New Orleans and Baton Rouge stations. I even heard some stories that 8 was even cutting in and out during American Idol on Wednesday night with freezes for several minutes. By Thursday morning it had gotten even worse to where 4, 8, 20, 54 were frozen or it looked like the picture was melting. On the still analog side 9 was terrible too, and even the local on 30 (still on a crane) was getting killed with static. The rest experienced some dropouts, but were bearable.

My experience on the Radio dial. KLRZ wasn't even making it to Houma. And my satellite radio was getting killed by interference on my FM transmitter station on 93.9.

If I would have been thinking, I would have scaned the dial a little better. Heck, I would have scanned the TV dial to see what digitals were coming in since that is the only one that really counts now.

I suspect, that 30 was getting killed by the KVHP digital signal on 30 in Lake Charles since they upgraded to full power in Feb. They were 29 back in the analog days.
 
slhdtv said:
That opening last Thursday was unreal on the TV side. Comcast in Houma for a several hours had some trouble picking up some of the New Orleans and Baton Rouge stations. I even heard some stories that 8 was even cutting in and out during American Idol on Wednesday night with freezes for several minutes. By Thursday morning it had gotten even worse to where 4, 8, 20, 54 were frozen or it looked like the picture was melting. On the still analog side 9 was terrible too, and even the local on 30 (still on a crane) was getting killed with static. The rest experienced some dropouts, but were bearable.

33 analog from Baton Rouge made the trip up here to the Nashville area Saturday morning. Only for a minute or two, but with a huge no-doubt-about-it ID.

Nothing digital from Louisiana but MPB's WMAU in Bude, Miss. isn't all that far from the state line.
 
slhdtv said:
That opening last Thursday was unreal on the TV side. Comcast in Houma for a several hours had some trouble picking up some of the New Orleans and Baton Rouge stations. I even heard some stories that 8 was even cutting in and out during American Idol on Wednesday night with freezes for several minutes. By Thursday morning it had gotten even worse to where 4, 8, 20, 54 were frozen or it looked like the picture was melting. On the still analog side 9 was terrible too, and even the local on 30 (still on a crane) was getting killed with static. The rest experienced some dropouts, but were bearable.

KFOL-CA is on a directional antenna that he bought for his digital signal that aims mainly at the Southwest side of Houma at pretty much low power. I know it's bad when I set a friend up to catch KFOL on a rabbit ear 5 miles from the tower and it's got white noise.


My experience on the Radio dial. KLRZ wasn't even making it to Houma. And my satellite radio was getting killed by interference on my FM transmitter station on 93.9.

Yeah KLRZ was surprising me.. I think it may have been on low power as the way the signal was coming into Thibodaux was noisy with no station bleed. Usually KRRV (country Alexandria,La) or WNSL (CHR Hattiesburg,MS) normally are the two that mix with the signal during tropo openings here

If I would have been thinking, I would have scaned the dial a little better. Heck, I would have scanned the TV dial to see what digitals were coming in since that is the only one that really counts now.

Depending upon your convertor box, sometimes just typing in the channel number of the location of the digital signal will automatically program it for you and let you view it (For instance typing in 35 with the antenna facing North should during tropo bring up KALB 5.1 from Alexandria)

One of my favorite sites for finding out what I should catch during normal tropo is tvfool.com
http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id=7c72f0ff7da47e IS a plot I done for Houma,La. (where I'm guessing you are located)

I suspect, that 30 was getting killed by the KVHP digital signal on 30 in Lake Charles since they upgraded to full power in Feb. They were 29 back in the analog days.

KFOL was being killed by KFOL period. It has a bad reception coverage on a good day currently
 
> Yeah KLRZ was surprising me.. I think it may have been on low power

That would surprise me. I was LOUD into Memphis last Thursday morning, strong enough to hit my car radio's scan. No sign of KRRV or WNSL (which, actually, was strong here THIS morning).

That all-LA format sure sticks out.

DE
 
Sure sounded like it wasn't broadcasting at full power last week when I checked on one day it was skipping.. I know they are currently at full power.. and yeah that All Louisiana format sticks out for non locals especially
 
As far as KFOL, they are nearing some final details on a new setup on a Houma tower in a recent call to the station. Last December before the Feb. 17 fiasco, they applied for a post transition pattern and an increase in power that would be omnidirectional, but they were delayed by the FCC and the June 12 move.

When they do move, they will be broadcasting in digital and not analog. According to Folse on the air, he said that they are looking to Multicast in the near future. It's not like they have any HD programming.

Not to get off topic, but as far as HTV's channel 7 in Morgan City, looks like they are still waiting on equipment, but their antenna is on the stick. That will improve the signal in the Morgan City area tremendously. They are going from about 12 watts analog before the storm in a very directional pattern, to a 300 watt digital station with an omnidirectional signal with a coverage map almost back to Houma.

It should be interesting once they fire up the new antennas. If all goes well, I am hearing they may have coverage all the way to Golden Meadow in South Lafourche, Hahnville in St. Charles, Reserve in St. John, and on the west side coverage all the way to a little past Franklin on Channel 7.
 
I would agree with outside antennas pointed at the towers... But not just with Channel 7 (KJUN)

KWBJ is to run way more power, and is not projected to get much more distance on channel 22

But if you are interested, here are the projected coverage maps of KFOL (30) KJUN (7) and KWBJ (39 but moving to 22 for digital)

KFOL- http://www.tvfool.com/?option=com_wrapper&Itemid=80&q=call=kfol&type=D
KJUN- http://www.tvfool.com/?option=com_wrapper&Itemid=80&q=call=kjun&type=D
KWBJ- http://www.tvfool.com/?option=com_wrapper&Itemid=80&q=call=KWBJ&type=D

My personal opinion is if he multicasts, if he can get an affliate of one of the national networks down here for locals in Houma that may have issues to catch in digital (compared to analog)
 
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