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Harrisonburg / Charlottesville, VA - HDTV - Page 118

post #3511 of 3703
Thread Starter 
Anyone know what happens when a translator licensee (such as Rockingham County, Va.) stops using a frequency (such as that nice channel 18 that covers the central Valley so well)? Does it go back to the FCC for some kind of re-allocation?

Beyond that, does that frequency still have any value for TV broadcasting?
post #3512 of 3703
If any station is off the air for a year, its license is canceled. But in the case of channel 18, the usefulness is likely to be limited since WDBJ-18 in Roanoke can otherwise be seen in some parts of the valley.

- Trip
post #3513 of 3703
Thread Starter 
Quote:
Originally Posted by Trip in VA View Post

If any station is off the air for a year, its license is canceled. But in the case of channel 18, the usefulness is likely to be limited since WDBJ-18 in Roanoke can otherwise be seen in some parts of the valley.

Wow, I'd love to get WDBJ . . . but have never even gotten a hint of signal on 18 when I swing the big ole antenna around that way. TVFool shows why: 103.9 miles, and not 1-edge or 2-edge, but tropo only. And that's with a stated antenna height of 1000 feet AGL, as opposed to the actual 25.
post #3514 of 3703
When I went to Waynesboro with 29Guy a few weeks ago, I saw WDBJ, WFXR, and WSLS on the spectrum analyzer.

- Trip
post #3515 of 3703
For those of you that get WCVW Richmond, it is now in HD.
post #3516 of 3703
And it also looks like WHTJ has PBS Create on 41.2.
post #3517 of 3703
Quote:
Originally Posted by 29Guy View Post


ComdrTekno,

Your tests would seem to confirm that the ch 41 antenna is working properly and delivering the planned signal coverage. Channel 41 was chosen because it would allow NBC29, Wx+, and CW29 to radiate the maximum of 15,000 watts across Augusta Co and southern Rockingham.

In April, when channel 30 begins operation from Massanutten, also at 15,000 watts, all of the Central Shenandoah Valley should receive good coverage. In Crimora, you may even receive a stronger signal from Massanutten.

Thanks for the signal reports.

29Guy

29Guy,

It's hard to believe it is already April. Do you have any status updates on the Massanutten translator?

Thanks!

Jeremy
post #3518 of 3703
Quote:
Originally Posted by CmdrTekno View Post

29Guy,

It's hard to believe it is already April. Do you have any status updates on the Massanutten translator?

Thanks!

Jeremy

The transmitter is ready for installation, however, the antenna manufacturer is running behind. We expect delivery by the end of April which means it should be on the air by mid-May.

29Guy
post #3519 of 3703
Quote:
Originally Posted by 29Guy

The transmitter is ready for installation, however, the antenna manufacturer is running behind. We expect delivery by the end of April which means it should be on the air by mid-May.

29Guy
Thanks for the update!

Jeremy
post #3520 of 3703
Anyone else besides me having issues with 29 over the past three days. un-watchable pixelated signal. Newsplex signals coming in at nearly 100%.
post #3521 of 3703
Quote:
Originally Posted by Barnkat View Post

Anyone else besides me having issues with 29 over the past three days. un-watchable pixelated signal. Newsplex signals coming in at nearly 100%.

Yes, over at Lake Monticello I am having the same issue. A few times I thought it was the weather and cloud cover but this morning, clear and cool and still having trouble with the signal.
post #3522 of 3703
This is a problem in Culpeper and has been for several days. My signal strength is showing in the upper 60s or maybe 70 when it normaly is in the mid to upper 80s or at 90. Something is going on with their signal strength, but I could find nothing about lower power on their web site. CBS 19 is still at 100 on my meter and the other Newsplex stations, although not as powerful, have the same signal strength even during these variable weather conditions as they alwasy have. Maybe 29Guy will weigh in and explain.
post #3523 of 3703
Looks like my NBC29 signal strength is back to normal this morning.
post #3524 of 3703
Anyone have problems with the Newsplex stations and WHTJ? All are at 0 signal strength right for me except for ABC 16 which just watchable with some dropout when normally it is very strong. This has been going on for a couple days (I live near Crozet). Only NBC 29 is working normally for me.
post #3525 of 3703
I'm in Charlottesville and am having no problems. Just checked, receiving all (16/19/27/29/41) at 4 miles with a paperclip.

You might check that a connection hasn't come loose on your antenna or coax.

- Trip
post #3526 of 3703
Quote:
Originally Posted by ajamison View Post
Anyone have problems with the Newsplex stations and WHTJ? All are at 0 signal strength right for me except for ABC 16 which just watchable with some dropout when normally it is very strong. This has been going on for a couple days (I live near Crozet). Only NBC 29 is working normally for me.
All is well in Culpeper with CBS19, Fox 27, ABC16 and WHTJ here in Culpeper. No noticeable difference in any of them.
post #3527 of 3703
Trip, do you really use a paperclip to receive your C'ville stations?
post #3528 of 3703
Quote:
Originally Posted by moedog View Post

Trip, do you really use a paperclip to receive your C'ville stations?

Yeah, I was too lazy to set up my antenna again after Spring Break, plus my 25' run of coax is being used for the free-to-air satellite dish at the moment. So I am using a paperclip, since it gets everything but WVPT. When I'm back at my apartment this evening and if I remember, I'll snap a photo.

A few months ago, I watched a whole hour of House with a thumbtack as an antenna.

- Trip
post #3529 of 3703
Paperclip.

- Trip
LL
post #3530 of 3703
Hey folks:

I need some thoughts on an antenna project I'm involved in. Let me show you the location and the stations received.

http://www.rabbitears.info/dxlocation.php?id=241

Stations in green decode, station in yellow is borderline, stations in red are detected but don't decode.

The setup is a roof-mounted XG-91 and YA1713 running through a Kitztech KT200 amp, then a single run split to a TV and a converter box. (The TV cannot get WNVT, so the converter box is on-hand for that.)

The problem is that I used my spectrum analyzer and saw that many of the signals that won't decode look just fine on the analyzer. For example, WRIC was significantly stronger than adjacent WVPY, but would never decode.

We had three thoughts, and any opinions on this would be appreciated.

1) To get WJLA/WUSA, the thought is that it may be necessary to add an FM trap. We definitely saw noise spikes in 7 and 9 on the analyzer. Thinking about using an HLSJ and terminating the low side of it.

2) To get in the missing UHFs, the thought is to put a notch filter on WVIR-32. We think the noise floor is being raised above channel 21 or so by the presence of WVIR, which after the amp is around +27.2 dBmV, or -21.6 dBm.

Az Call Ch Strength MER Notes
23° WVPT 11 +3.6 dBmV 20.7 dB  
23° WVAW 16 +20.1 dBmV >36 dB  
23° WCAV 19 +18.2 dBmV >36 dB  
23° WVIR 32 +27.2 dBmV 35.6 dB  
23° WAHU 40 +11.0 dBmV 35.4 dB  
23° WHTJ 46 +21.8 dBmV >36 dB  
68° WSET 13 -14.4 dBmV   TV and CECB decoded it, analyzer wouldn't
73° WWCW 20 -21.1 dBmV   TV and CECB decoded it, analyzer wouldn't
185° WVPY 21 -20.8 dBmV   TV and CECB decoded it, analyzer wouldn't
245° WJLA 07 -25.0 dBmV    
245° WUSA 09 -28.1 dBmV    
252° WNVT 30 -22.3 dBmV   CECB decoded it, TV and analyzer wouldn't
295° WUPV 47 -13.6 dBmV    
307° WWBT 12 -2.7 dBmV 20.3 dB Decoded by all
307° WRIC 22 -16.3 dBmV    
307° WTVR 25 -21.9 dBmV    
307° WRLH 26 -20.9 dBmV    
307° WCVE 42 -26.2 dBmV   Don't care about this since it is simulcasted on WHTJ-46
307° WCVW 44 -31.6 dBmV    

(Please note the azimuths are off by 180°, the antenna was put up that way and I'm just using the numbers on the rotor control box.)

3) Another worry is that the antennas could be too close together. Above the rotor is a 5 foot pole and the VHF antenna is below the UHF antenna on that single pole. Photos were taken but have not yet been made available to me. I'll post them when they're available.

Any thoughts on these issues and/or proposed solutions?

EDIT: Oh, forgot to mention, one other station was observed that is not on that list. We received analog W28BF from Massanutten clear enough to be watchable, though not completely clear. I'll be anxious to see if W30CT-D trashes WNVT when it signs on.

- Trip
post #3531 of 3703
Trip, my first thought is front end overload of the preamp. Did you ever try running the antennas directly to 1 TV with no splits or amp? The 91XG/YA-1713 should provide enough signal for decoding stations to around -80 or -90dbm through 100 feet of RG-6.

If amplification is needed, the overload tolerant Winegard 2870 with separate VHF/UHF amplifiers would be a good choice. A Channel Master 3414 distribution amp may even be a better choice if the cable run isn't more than 50 to 75 feet from the antennas to the distribution point.

An HLSJ would also be a good choice to pre-filter any FM before amplification.

I doubt the antennas are too close together. I've done 2 set-ups with them less than a foot apart & reception has been stellar.
post #3532 of 3703
Quote:
Originally Posted by Digital Rules View Post

Trip, my first thought is front end overload of the preamp. Did you ever try running the antennas directly to 1 TV with no splits or amp? The 91XG/YA-1713 should provide enough signal for decoding stations to around -80 or -90dbm through 100 feet of RG-6.

The goal is to get DC stations, thus the amp. My friend's parents retired to Ruckersville after living in NoVA, and are trying to watch at least some of the stations. (The gem would be WRC, but I'm not getting any hopes up on that. 7 and 9 are present, so I'm working on those.)

I don't know that we've tried running it without the amp up on the roof. On the ground before the antennas went up, I was seeing quite a few signals through them on my analyzer, though that doesn't tell me whether or not they were capable of decoding.

Quote:


An HLSJ would also be a good choice to pre-filter any FM before amplification.

I doubt the antennas are too close together. I've done 2 set-ups with them less than a foot apart & reception has been stellar.

Thanks for the thoughts on this. We're already looking at replacing the 5 foot pole with a 10 or 15 foot pole in the future which will add some height and maybe some spacing, thus why it came up anyway.

Thanks. Any other thoughts are much appreciated.

- Trip
post #3533 of 3703
I thought they used to carry some of the DC stations on cable in that area. Is that not the case anymore? And, IIRC, back in the analog days, it was WRC-4 that put out a good signal towards Charlottesville, and perhaps WUSA-9 as well. I guess things have changed now with digital. And have they replaced any of the analog translators with digital versions for DC stations? And what about WTTG Fox5?
post #3534 of 3703
Quote:
Originally Posted by tylerSC View Post

I thought they used to carry some of the DC stations on cable in that area. Is that not the case anymore?

I can't speak for cable in Ruckersville, but in Charlottesville we get WTTG on channel 18 and WDCA is on Clear QAM, but otherwise, nothing from DC.

But of course, the point of an antenna setup is so that you don't need cable.

Quote:


And, IIRC, back in the analog days, it was WRC-4 that put out a good signal towards Charlottesville, and perhaps WUSA-9 as well. I guess things have changed now with digital.

The VHF signals of 7 and 9 still make it (at least in the Ruckersville area, I never saw them in Charlottesville even when they were analog) but the UHFs, so far, don't seem to be making it.

Quote:


And have they replaced any of the analog translators with digital versions for DC stations?

There aren't any translators on this side of the mountain. (On the other side of the mountain, no, a number of the licenses have been turned in.)

Quote:


And what about WTTG Fox5?

What about it?

- Trip
post #3535 of 3703
Quote:
Originally Posted by Trip in VA View Post

The goal is to get DC stations, thus the amp. My friend's parents retired to Ruckersville after living in NoVA, and are trying to watch at least some of the stations. (The gem would be WRC, but I'm not getting any hopes up on that. 7 and 9 are present, so I'm working on those.

I installed the 91XG/YA-1713 near Madison last summer & the only reliable DC stations were 4,5,26,30-1 through 30-10, 32, & 66. We were able to get 7 & 9, but never reliable enough to watch without frequent dropouts & pixelation.

I have a a Y10-7-13 I may be trying to see if it will work any better, but it was disappointing here with 11 & 13 compared to the YA-1713.
post #3536 of 3703
I was just reminded that we did try it without the amp and only got locals. My wonderful memory wins again.

EDIT: Added a representative photo.

- Trip
LL
post #3537 of 3703
Quote:
Added a representative photo.
If that's an actual photo of the setup at KI4UQO's location, the VHF antenna is an AntennaCraft Y10-7-13 and not a Winegard YA-1713 as posted in #3530. I did a shootout between the two and the Y10-7-13 was better across the VHF stations measured (8, 9, 11 and 12). The gain was anywhere from 0.5 to 2.0 dB better on the AntennaCraft.

That's not really the crux of your problem since it appears that UHF is the problem at that site in central Virginia. And you have the gold standard for that band, the 91XG.

I have three thoughts:

1). Check the balun on the 91XG. The newer (and supposedly better one) has the download connection on the bottom instead of the rear. AntennasDirect has great customer support and you can probably get a replacement for the older balun box if that's what you have.

2). Aside from the raw power readings on the Sencore, how about some screenshots of the spectrum? In particular, how flat is WRIC?

3). If you can beg, borrow or steal a CM-7777 preamp, try that instead of the the KT-200.
post #3538 of 3703
Quote:
Originally Posted by re_nelson View Post
If that's an actual photo of the setup at KI4UQO's location, the VHF antenna is an AntennaCraft Y10-7-13 and not a Winegard YA-1713 as posted in #3530. I did a shootout between the two and the Y10-7-13 was better across the VHF stations measured (8, 9, 11 and 12). The gain was anywhere from 0.5 to 2.0 dB better on the AntennaCraft.
Again, my wonderful memory. I couldn't remember which one and took a guess. I guessed wrong.

Quote:
That's not really the crux of your problem since it appears that UHF is the problem at that site in central Virginia. And you have the gold standard for that band, the 91XG.

I have three thoughts:

1). Check the balun on the 91XG. The newer (and supposedly better one) has the download connection on the bottom instead of the rear. AntennasDirect has great customer support and you can probably get a replacement for the older balun box if that's what you have.
Well, we bought the antenna new, I think. I would hope we have the new one.

Quote:
2). Aside from the raw power readings on the Sencore, how about some screenshots of the spectrum? In particular, how flat is WRIC?
Without a computer with a serial port on it, I couldn't snag any snapshots. I took the POWER OLD number off the Sencore, too, not the number on the spectrum screen. However, I do remember they were all flat enough that I would expect a decode, except for WWCW-20, which decoded just fine anyway.

Quote:
3). If you can beg, borrow or steal a CM-7777 preamp, try that instead of the the KT-200.
I've got my personal one on the roof of the reactor that I'm pulling down at some point, if we can ever get the ladder out, so I suppose we could give that a shot.

- Trip
post #3539 of 3703
Quote:
Originally Posted by 29Guy View Post


The transmitter is ready for installation, however, the antenna manufacturer is running behind. We expect delivery by the end of April which means it should be on the air by mid-May.

29Guy

Looks like W28BF is off the air. I hope this is in prep for the switch over (I did not see rf 30 up yet). Relatives in the area have mentioned the W28BF feed has been unstable over the past few months and look forward to the digital change over.
post #3540 of 3703
Quote:
Originally Posted by CmdrTekno View Post

Looks like W28BF is off the air. I hope this is in prep for the switch over (I did not see rf 30 up yet). Relatives in the area have mentioned the W28BF feed has been unstable over the past few months and look forward to the digital change over.


W28BF is no more. If all goes as planned (and it hasn't so far), W30DT-D should be on the air tomorrow.

29Guy
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