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Charlotte, NC - OTA - Page 179

post #5341 of 7653
A reflector concentrates your reception - instead of hearing all around you, it focuses energy where you want it - TV rarely comes from every which direction, so you are "wasting" your reception by picking up in every direction - It also helps prevent signals coming from two directions (where the original signal splits off and hits and object and comes back from another direction, but usually milliseconds off which corrupt the main signal). When you are closer to the transmitters, an omni-diretional antenna can help, but the further you are out, the more likely the signal will be in one direction. Now, that isn't to say a reflector cuts off everything, it doesn't; I can receive Charlotte with my antenna pointed dead on, but off the side get almost all of GSO as well. However, it does help, and the Charlotte stations are all 95% or above, 60 miles away where I live.
post #5342 of 7653
Quote:
Originally Posted by veedon View Post

What benefit does a reflector provide? Does it vary from channel to channel, and should a reflector be removable or permanently attached?
Ideally, a reflector should be matched to the antenna, and the antenna to the desired frequency.. In the real world, reflectors for broadcast TV antennas are rarely terribly efficient. They are usually screen or mesh for outdoor use, and do reflect some signal to the antenna that might otherwise be lost, but do not block signals from the sides and back very well. The two things a reflector might do are collect desired signal and direct to the antenna, and, protect the antenna from undesired signals from other than the intended direction. Screen and mesh outdoor type reflectors do not protect much, so the question of their being removable is probably not a question. I have a mesh reflector on my 4 bay bowtie antenna, which I point at weaker signals, but will still receive stronger signals from back and sides..
Indoors, where wind and weather are not issues, solid reflectors probably should be movable to maximize the reflections for each frequency . I've done some interesting things with reflectors indoors..
Takes some desire and patience, though.
post #5343 of 7653
For some reason, WBTV and WSPA carried different NFL telecasts from CBS during the early afternoon games. Channel 7 had the Baltimore-Cincy game. Which is why an antenna can give you an alternative choice if you don't have the DirecTV NFL package. Not sure who decides what games to carry.
post #5344 of 7653
Quote:
Originally Posted by tylerSC View Post

No PSIP program info on WBTV for the past 2 days. I guess somebody is still on Christmas vacation.
WBTV's PSIP is still out as of Sunday night. No biggie right now since I still get a week's program guide from TVGOS. But I do hope WBTV (and all the other locals) have PSIP in good working order soon. TVGOS will be gone by April (lots of cities have already lost it as Rovi has their equipment removed). Reliable PSIP programming info will become extremely important once TVGOS is just a fond memory.
post #5345 of 7653
I've seen WCCB's signal at 100% on my converter box and it still froze after two seconds on my HDTV. None of the other channels do that, even if their signal is weak. It's either a problem with my HDTV or the WCCB signal itself. As I said before, it's not a big deal because I get their HD signal through Charter, but it would still be nice if their OTA signal stopped freezing on my HDTV. I have a Vizio VX240M HDTV which appears to be from 2009, but I bought it this past June.
Edited by mcy919 - 12/30/12 at 7:40pm
post #5346 of 7653
And some translator channels including WSOC provide no PSIP data at all. But you should receive the main 9.1 no problem. However it is sad that TVGOS is ending but no more complaining since it is a done deal. Time to consider TiVo as it is great after the initial investment. I got mine on sale for $49 and then got a $100 off lifetime subscription deal. You have to watch for the periodic promos. I have all of the Charter cable channels and the OTA antenna channels nicely integrated in one box with complete extended program info and channel data.
post #5347 of 7653
Quote:
Originally Posted by tylerSC View Post

Time to consider TiVo... as it is great after the initial investment. I got mine on sale for $49 and then got a $100 off lifetime subscription deal.

I'm still unconvinced about TiVo for OTA since my CM-7000PAL DVR will still function for local OTA with PSIP after TVGOS dies. TiVo's "Lifetime Subscription" for their program guide at $499.99 up-front (not counting the cost of the TiVo DVR) could be a disaster if the $49 box should die soon after the limited 90 day labor, one year parts warranty expires.

TiVo's website says: "Coverage period: Includes a "Product Lifetime Subscription" to the TiVo service which covers the life of the TiVo box you buy, not the life of the subscriber."
post #5348 of 7653
Quote:
Originally Posted by A J View Post

WBTV's PSIP is still out as of Sunday night. No biggie right now since I still get a week's program guide from TVGOS. But I do hope WBTV (and all the other locals) have PSIP in good working order soon. ....

WBTV is consistently bad about providing PSIP info. It's not unusual for them to go out on the weekends and over holidays.
post #5349 of 7653
Quote:
Originally Posted by mcy919 View Post

I've seen WCCB's signal at 100% on my converter box and it still froze after two seconds on my HDTV. None of the other channels do that, even if their signal is weak. It's either a problem with my HDTV or the WCCB signal itself. As I said before, it's not a big deal because I get their HD signal through Charter, but it would still be nice if their OTA signal stopped freezing on my HDTV. I have a Vizio VX240M HDTV which appears to be from 2009, but I bought it this past June.

Whatever it is, it is probably not the signal causing the freezing. I receive it from some distance away, with no problems. It may be some local interference, although I cannot imagine what.
post #5350 of 7653
I am pleasantly surprised to see that the WBTV Near Year's telecast is in HD. Looks and sounds good. And the cover band performing is good.
post #5351 of 7653
Quote:
Originally Posted by difuse View Post

Whatever it is, it is probably not the signal causing the freezing. I receive it from some distance away, with no problems. It may be some local interference, although I cannot imagine what.

I guess it's a issue with my HDTV, which is a shame but not a huge deal. I just find it odd that the translator from Valdese works fine on it, but the main signal from Charlotte doesn't.
post #5352 of 7653
Quote:
Originally Posted by mcy919 View Post

I've seen WCCB's signal at 100% on my converter box and it still froze after two seconds on my HDTV. .

Maybe this explains it.

Most of the TV signal meters give you an indication of signal strength, but not signal quality. It's the "quality" that matters and that is what should be used to aim an antenna. In most cases the two will follow each other, but there is also a chance that you can have a very strong signal, but interference, say by reflections from moving trees could degrade the quality down to where the receiver can't hold a lock on the station. You get a strong, but low quality signal. For a digital tuner it then comes down to the error detection and correction routines in the tuner software. Some tuners do a better job of this than others.

I was confused by this too, because I had issues with my original setup where I used a DB8 pointed at WHKY from Huntersville to Hickory. There is a small signal lob on the back of this antenna which happened, luckily, to be pointed at WSOC & WCCB. The signal meter would read 100% so I thought I had had solved my issue. However during any kind of storm, WSOC, even though the strength meter would stay at 100% would drop, and drop a lot. WCCB would also but not as much.

After I converted to a MythTV system, i.e. PC based tuners, I found that I could go to the command line and do a much thorough examination of what was going on with these tuners. As it turns out, while I had 100% signal strength, which would lead me to believe that all was OK, the signal quality was pretty bad. The tuner could not deal with more than 30% error correction and after that it would drop the signal. i.e. Signal Quality had to be more than ~70%.

My solution was that I added another antenna to the system. I used my small homebuilt antenna, placed in the attic, and pointed in that direction. WSOC now is at 91%, but the signal quality is close to 100%. It does not drop now despite storms, etc. WCCB also is very similar. Curiously, with this setup, I can now pick up WDMC-LD (a low power station in Statesville, channel 25). The signal strength is a measly 60%, but signal quality is 90%+, so it always locks.

To sum it up, you really can't rely solely on signal strength to determine if you can pick up a station. It's the signal quality that matters. Some TV tuners will display the quality but IMO, they all should.


(One neat thing. I can take my laptop and wirelessly connect to the MythTV console and then use it as a wireless meter to point my antennas while watching the signal quality on the laptop. I suppose I could do this on my smart phone too)
Edited by blackcat6 - 1/1/13 at 3:48am
post #5353 of 7653
^As an addendum to this, if you are using an amp and it is either too powerful or too noisy, the TV Strength Meter will show an excellent 100%, but the Signal Quality will be destroyed which will mean you can't lock or hold the station.
post #5354 of 7653
Thanks for the detailed reply. I really do believe it's my HDTV causing the problem now. When I go to 18-1 or 18-2, the picture and sound always freeze after two seconds. My converter box has seperate signal strength and quality meters, and it still freezes on my HDTV no matter what the quality is. Also, the SNR meter on my HDTV always goes down to zero. I've even left it on the channel to see if it unfreezes, but it never does. None of the other channels do that, including Me-TV on 18-3. I believe the tuner on my HDTV has some kind of problem with HD on OTA channel 27 since the Valdese translator on channel 20 doesn't freeze when I pick it up.
Edited by mcy919 - 1/1/13 at 10:12am
post #5355 of 7653
It could also be PSIP info that is mis-configured for your TV. My HDTV had audio dropouts that lasted for several days on KNBC. My other TV did not have dropouts. This happened after a lightning storm knocked the station off the air.
post #5356 of 7653
Quote:
Originally Posted by mcy919 View Post

I really do believe it's my HDTV causing the problem now. .

That would be my conclusion..as we have not had any other complaints like you describe, nor seen it on any receivers that we have used. The translator is actually atop Smith Mtn in Connelly Springs with WSOC's..(actually in the same room facing each other) and receives the signal OTA from the main transmitter in Newell. While there are subtle differences; mainly being WCCB-TR does not have MH, I don't forsee any changes in the config of our stream.
FOX, MobiTv, DirecTv, DIsh, and AT& T are pretty quick to call us if they see any issues with our stream.
post #5357 of 7653
It's interesting to see the posts on here last week about reception problems. I live in SW Winston and have two long range antennas (one in the attic and one outdoors). My outdoor antenna is a Winegard 9095P and it has performed very well over the past two years. But this evening, I observed something interesting. Not only did I lose the signal on WCCB at about 11pm, but I then noticed all of the signals for the other Charlotte networks were at considerably lower levels. WSOC held on a little better than WCCB without pixelating or dropping even though both towers are in NE CLT. But this significant drop in signal strength across all these channels (to include the Dallas stations) was particularly unusual for me this evening. Is there someone else in a fringe area that noticed significant signal drops this evening? I am 62 miles from NE CLT and 70 miles from Dallas.

With my equipment setup, I am accustomed to getting these networks on a 24/7 basis. And on the rare occasions when I do run into problems, it does not seem to impact every one of the towers in a similar manner at the same time. Again, I would appreciate feedback from anyone else in a fringe area who may have experienced problems this evening.

Fox News Edge and The Simpons became completely unwatchable tonight on WCCB.
Edited by evan237 - 1/10/13 at 8:35pm
post #5358 of 7653
I've never posted before, normally I just lurk, but I was gonna share some info. I've seen where people have been amazed before by the power of the wunl PBS tower on Grandmother Mountain in Linville so since I work in the area I decided to take my little portable TV and a little homemade 2 bay antenna that I could fit in the truck with me up to the tower to see if the signal reception was just as strong. The mountain its self is probably just shy of 5000 feet and is right on the blue ridge escarpment with no bigger mountains blocking the view of the Piedmont, on the clearest of days sometimes I have even seen it where you can see the skyline of Charlotte with the naked eye just after a strong cold front moves through. Without even getting the antenna out of the truck I was able to pick up 108 channels from 4 different directions even with today's bad weather, I started with it between Winston and Charlotte and it picked up 63 channels, which I think was all the available channels, I then added 12 more channels from the GSP direction, and 26 channels from the tri cities Tennessee, surprisingly I added 7 more from roanoke which is 125 miles away. I thought Knoxville might be possible but the mountains between here and there was just to much, along with wlos from asheville which Mt. Mitchell blocks, I think those are the only regional channels that could not be attained. Big difference from my home in a 3000 foot valley where I can only receive wbtv, channel 7 from spartanburg and PBS from linville
post #5359 of 7653
Evan the weather conditions were abnormally bad the other night when the unusual winter warm front came through. Then they improved later and became very good. But I lost WCNC, WJZY, and WMYT for a brief period, and strengths were down also. Only WBTV seemed to be the most stable, as is normal at my location.
post #5360 of 7653
Quote:
Originally Posted by wncbraves View Post

I've never posted before, normally I just lurk, but I was gonna share some info. I've seen where people have been amazed before by the power of the wunl PBS tower on Grandmother Mountain in Linville so since I work in the area I decided to take my little portable TV and a little homemade 2 bay antenna that I could fit in the truck with me up to the tower to see if the signal reception was just as strong. The mountain its self is probably just shy of 5000 feet and is right on the blue ridge escarpment with no bigger mountains blocking the view of the Piedmont, on the clearest of days sometimes I have even seen it where you can see the skyline of Charlotte with the naked eye just after a strong cold front moves through. Without even getting the antenna out of the truck I was able to pick up 108 channels from 4 different directions even with today's bad weather, I started with it between Winston and Charlotte and it picked up 63 channels, which I think was all the available channels, I then added 12 more channels from the GSP direction, and 26 channels from the tri cities Tennessee, surprisingly I added 7 more from roanoke which is 125 miles away. I thought Knoxville might be possible but the mountains between here and there was just to much, along with wlos from asheville which Mt. Mitchell blocks, I think those are the only regional channels that could not be attained. Big difference from my home in a 3000 foot valley where I can only receive wbtv, channel 7 from spartanburg and PBS from linville
Interesting that you get WBTV but not WJZY or WCNC, which broadcast from slightly taller towers at the same basic location. But only WBTV is a top-mounted antenna, whereas the others are still side-mounted. And WCNC is aimed to the east to protect RF21, and they are not yet full power. I guess these different antenna patterns can truly make a difference in distant areas. But WCNC did have a permit to go to 1000kw and top mount the antenna, but perhaps they have put those plans on hold. Reportedly they do have a good signal east of Gastonia, which is their primary market area.
post #5361 of 7653
Speaking of Fox News Edge, I notice Ramona Holloway is on WCNC now, so who do they have hosting the Edge program now? And I would like to see one of the channels bring Mark Mathis back. Love him or hate him, he was entertaining to watch, and you could not help but tune in to see what he was going to do next. I was in Clt back when he did the weather and the Edge, so I remember him well from back then.
post #5362 of 7653
Yeah wbtv is the only Charlotte channel that I can come close to getting and its not a reliable signal, I live in southern Mitchell county near the Blue Ridge Parkway but just blocked in by mountains all around. Wbtv was always the strongest channel for everybody in the area in the old analog days and was basically everybody's favorite channel, channel 9 was the only other Charlotte channel that would even show up but was not watchable, now Mitchell county is not even in the viewing area any more for wbtv and is not available to me through directv, but is the only Charlotte channel available through the cable company here along with all gsp locals and tri cities locals. TV fool shows wbtv at like -25 for my address but I have a sweet spot where I can get it. It surprises me sometimes the channels that you can pick up that you shouldn't, I put a new homeade 4 bay bowtie antenna up for my father in law a couple of weeks ago just north of North Wilkesboro and pointed it towards the marion translators for fox and ABC and was shocked to see that it also pulled in wspa from Spatanburg which is 95 miles away and VHF I figured it would dissapear but he said it has not messed up a single time which is great because it was the only major network he was missing, the old store bought antenna he had was only receiving PBS from linville and NBC from winston, now he's getting channels from marion, hickory, winston, linville, and Spartanburg without turning the antenna even with a reflector on it.
post #5363 of 7653
Quote:
Originally Posted by evan237 View Post

I've only watched Fox Edge a couple of times since Matt and Ramona left this past December. So I am not sure if they've got permanent replacements or not. But I woiuld guess many viewers will miss Matt and Ramona. Because Matt and Ramona are different in so many respects, they made good partners on that show so that the viewing audience could hear opposing views.
post #5364 of 7653
It will be interesting to see if SOUL actually comes on the air in 8 days on WMYT. I can find no evidence on the Internet they are beginning to transmit and one comment on their rather sparse facebook page said they only had 1 affiliate, the one here in Charlotte.
post #5365 of 7653
Hello. hope everyone is doingood.I was wondering if anyone is missing ota channel 18.5.We have signal on 18.4 & 18.6. Anyone notice it ? Thanks.smile.gif
post #5366 of 7653
It is there, at least according to my remote access of smith mtn system via my iphone..you may need to rescan..,smile.gif
post #5367 of 7653
Quote:
Originally Posted by blackcat6 View Post

It will be interesting to see if SOUL actually comes on the air in 8 days on WMYT. I can find no evidence on the Internet they are beginning to transmit and one comment on their rather sparse facebook page said they only had 1 affiliate, the one here in Charlotte.
I would rather see them add Cozi TV. I like the old rerun channels. They have tried for the better part of 2 years to get Soul on the air, and it is always delayed. Not sure if it has national appeal.
post #5368 of 7653
Yeah I would like to see that channel too.
post #5369 of 7653
Quote:
Originally Posted by blackcat6 View Post

Yeah I would like to see that channel too.

I have it at home and there are a lot of good shows on that one.
post #5370 of 7653
Here's another vote for Cozi TV. I think it would be much better than Soul. And from the looks of things, there's no affiliate offering Cozi TV (at this time) anywhere in the Carolinas.
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