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post #11191 of 11204 Old 11-28-2016, 09:13 PM
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Originally Posted by bb56 View Post
Before October 23 when the storm damaged the antenna in Needham, I was getting 2.1-WGBH, 4.1-WBZ, 5.1- WCVB (and all their sub channels.) Plus the RI stations.
2.1 was up and running after the storm first but had to shutdown when the new parts were being replaced about 2 weeks ago. About a week ago or so, 5.1 came back on the air, but I no longer get 4.1. Zero signal strength. When I re-scanned, my TV dropped it from the line-up.
The weird thing is that 2.1 is 700KW, 4.1 is 825KW and 5.1 is 625KW and the frequencies are 503, 509 and 515 MHz respectively. I can't imagine why I don't get 4.1 any longer since the repairs nor what to do about it. I've relocated and reoriented the antenna (attic mount) to no avail.

Any ideas anyone?
Actually WGBH is on ch. 19 (centered on 503 MHz), WCVB is on ch. 20 (509 MHz), WBZ is on 30 (569 MHz), and WGBX is on ch 43 (647 MHz). However it's not that big a frequency jump from 509 to 569 MHz. Do you get WGBX?

The last posted info was that WGBH was feeding the damaged upper section of the antenna, and the other 3 were feeding the undamaged lower section - which is the the reverse of the normal config. All using full power. However it's possible that has changed.
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post #11192 of 11204 Old 11-29-2016, 07:29 AM
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I contacted WBZ this morning and was told that they are around 95% and WSBK is at 100%...don't know if that's on the secondary antenna or primary...I assume secondary based on WGBH's last post. I was able to watch the Pats game although had occasional pixelation, but it was windy Sunday and I do receive through a few broad leaf trees that are still hanging on to some of their leaves.
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post #11193 of 11204 Old 11-29-2016, 04:28 PM
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I've been getting 2.1 WGBH for most of the past month until they turned it off during the repair 2 weeks ago. 5.1 WCVB came back a few days later, but WBZ has not been seen here since the storm damage. I get 44.x with dropouts on RF 43.

I don't think 95% power on 4.1 WBZ would be a problem if it's on the same antenna as 5.1 WCVB since that would still be more power than WCVB. But still no signal for 4.1 RF 30.
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post #11194 of 11204 Old 11-29-2016, 04:31 PM
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Originally Posted by Channel99 View Post
Actually WGBH is on ch. 19 (centered on 503 MHz), WCVB is on ch. 20 (509 MHz), WBZ is on 30 (569 MHz), and WGBX is on ch 43 (647 MHz). However it's not that big a frequency jump from 509 to 569 MHz. Do you get WGBX?

The last posted info was that WGBH was feeding the damaged upper section of the antenna, and the other 3 were feeding the undamaged lower section - which is the the reverse of the normal config. All using full power. However it's possible that has changed.
Yes thanks. Those are the RF channels but my TV uses the digital channels like 4.1, 5.1, etc. I can't tune in by RF channels.
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post #11195 of 11204 Old 11-29-2016, 04:38 PM
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From WGBH today

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Tuesday, November 29, 2016, 10:45am
Repair work continues today with engineers and the tower crew back on site in Needham this morning.

In the current configuration, WGBH is on the upper main antenna at full power using an auxiliary transmission line, while WGBX and the network stations are on the lower main antenna at slightly reduced power. The plan moving forward is to rebuild the transmission line to the upper antenna with the parts that were fabricated in Maine over the past week.

Today the crew will start prep work on the ground and getting ready for the hoist needed to move equipment and parts up the tower.
Rebuilding the transmission line is expected to take about two weeks. Weather and other factors may change that timeline. Once the work is completed, the stations will be moved to the repaired line and power applied to test it. If the tests are successful, the stations can go back to normal operation.

Once all of the stations are back on the main transmission lines and in their proper locations on the upper and lower antenna, the auxiliary transmission line will be rebuilt. Some overnight shutdowns may be required during certain phases of the work. We will post outage information when it is known.
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post #11196 of 11204 Old 11-29-2016, 05:05 PM
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Originally Posted by bb56 View Post
Yes thanks. Those are the RF channels but my TV uses the digital channels like 4.1, 5.1, etc. I can't tune in by RF channels.
What model of TV? You're close enough that you should be receiving 4.1 even at 95% reduced power and if you're receiving 38.1 and 5.1. Is this just on one TV or do you have more then 1 with it happening?
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post #11197 of 11204 Old 11-30-2016, 03:44 PM
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Antenna Recommendation

I'm hoping someone might be able to recommend an antenna to be installed in the attic for my location 20 miles from the Boston towers. Here's the report: http://www.tvfool.com/?option=com_wr...dfafee7531dd86

I'm mainly interested in the Boston stations around 177-180º but if I could easily get the closer LOS channels too that would be a bonus. Thanks!
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post #11198 of 11204 Old 11-30-2016, 06:26 PM
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Originally Posted by gsr View Post
Transmission power and the distance the signal can be received kind of go hand in hand (I realize other factors, such as height, obstructions, and so on also come into play)... But yes, WBTS obviously is transmitting with FAR less power, which means the coverage area is probably going to be ridiculously small. I'll post my TVFool report if their site comes back up. But it isn't a huge problem for me since I should be able to get the channel via FIOS, I just prefer to use my more limited (in number) CableCard tuners for content I can't get OTA.

I've got 9 CableCard tuners (3 x SiliconDust HDHomeRun Prime) and 16 HD OTA tuners (5 x SiliconDust HDHomeRun + 3 x PCIx dual OTA tuners) that are collectively shared with several PC's / DVR software solutions (WMC, JRiver Media Center, and BeyondTV). BeyondTV is just being used as a backup for OTA recording in case WMC or JRiver fails to record something, but I haven't actually had to fall back to that in quite a long time, so I can probably retire it at this point. If JRiver had support for Copy Once content, I could drop WMC at this point too...
So here's my TVFool report which seems to indicate I should be able to get WBTS with an antenna in the attic.
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post #11199 of 11204 Old 12-01-2016, 06:39 AM
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Originally Posted by gsr View Post
So here's my TVFool report which seems to indicate I should be able to get WBTS with an antenna in the attic.
You would on the roof, you should in the attic, but attic installs can be tricky due to a number other factors. I have a small attic so I had to contend with roofing nails, flashing, and metal gutters that caused multi-path reflections, once I went to the peak of my roof it was night and day...just couldn't get the attic install to work for me and I'm an RF Engineer .
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post #11200 of 11204 Old 12-01-2016, 06:45 AM
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Quote:
Originally Posted by david.p View Post
I'm hoping someone might be able to recommend an antenna to be installed in the attic for my location 20 miles from the Boston towers. Here's the report: http://www.tvfool.com/?option=com_wr...dfafee7531dd86

I'm mainly interested in the Boston stations around 177-180º but if I could easily get the closer LOS channels too that would be a bonus. Thanks!
I'm a fan of Antennas Direct because of their profile/siize...maybe not the highest in terms of signal gain, but good design and work well in most situations. I use the Clearstream-4 60+ miles out and have great results pulling in Boston stations (I do pre-amp at the antenna).

In your case go to BestBuy (or Walmart) and grab Clear Stream 2v...at least then if you have trouble with it you can return back to best buy. The VHF element will also allow you to pick up WMUR CH9 from the back side along with the Boston stations. But as I mention in the prior post attic installs can be tricky.

http://www.bestbuy.com/site/antennas...?skuId=6847298
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post #11201 of 11204 Old 12-01-2016, 09:25 AM
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Originally Posted by bac522 View Post
What model of TV? You're close enough that you should be receiving 4.1 even at 95% reduced power and if you're receiving 38.1 and 5.1. Is this just on one TV or do you have more then 1 with it happening?
Main TV is a Vizio E480 smart TV. Others include Dynex, Sony, magnavox, and another small inexpensive one. Today, I have an intermittent channel 4.1 back. Not sure what changed but I can go re-align the antenna again to hopefully bring it in better.
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post #11202 of 11204 Old 12-01-2016, 11:07 AM
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Directv added WBTS-LD today on channel 10. Hopefully that will help some who are out of range.
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post #11203 of 11204 Old 12-01-2016, 06:01 PM
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Directv added WBTS-LD today on channel 10. Hopefully that will help some who are out of range.
Comcast did the same - moving NECN from 810 to 840 and also added OTA ch 8_3 (Cozi) on 935.
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post #11204 of 11204 Old Today, 04:53 AM
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Quote:
Originally Posted by bb56 View Post
Main TV is a Vizio E480 smart TV. Others include Dynex, Sony, magnavox, and another small inexpensive one. Today, I have an intermittent channel 4.1 back. Not sure what changed but I can go re-align the antenna again to hopefully bring it in better.
Got me baffled on this one, an antenna alignment would affect the other channels too off of that tower location which is majority of Boston stations like 5, 2, and 7. And the beamwidth of an antenna is pretty wide so it'd would have to be out of alignment quite a bit.

Usually when troubleshooting signals, always best to temporarily eliminate other variables and do a direct run to a single TV to confirm signal levels. If you're using splitters then you 1/2 the power through each spit which might be enough to affect the signal level from the Antenna to the the TV's receiver.
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