or Connect
AVS › AVS Forum › HDTV › Local HDTV Info and Reception › Denver, CO - OTA
New Posts  All Forums:Forum Nav:

Denver, CO - OTA - Page 282

post #8431 of 8459
I might need some help from the List here.

Being that you live "more South than North," try aiming a little South of Lookout Mtn. Then re-scan for KZCO-17 (simulcast of KMGH) to see if that might help.

I understand that KZCO mostly covers a "shadow" area SE of "LOM." Might be worth a try.

"Duke"
post #8432 of 8459
Anyone know what the latest timeframe is for KRMA's eventual transmitter move to Lookout?
post #8433 of 8459
I'm going absolutely crazy over here! I *think* I had some static electricity come in and I *think* it came in through my antenna. It blew up all of the ethernet ports in my system. I've replaced all of the damaged components, but I'm still having issues with my antenna. Here's a link to the thread referencing the initial problem, so I can focus solely on the ota reception issue here: http://www.avsforum.com/t/1498719/crazy-ethernet-issue-please-help.

Here's a list of equipment/software/pertinent info:

ClearStream 4
HDHomeRun
Windows 7 Media Center
I'm on the south edge of Fort Collins

After I replaced my router, Apple TV, HDHomerun, and added a network card to my PC, I noticed my ota reception was off. I'm really only concerned with 2, 4, 6, 7, 9, 12, 20, 31 out of Denver. I've had no issues with any of those channels - not even a hiccup - for the last year, but after whatever happened to my ethernet ports, I no longer get 7 or 9, and 4 is pretty iffy.

I assumed I also fried the amplifier that was bundled with my ClearStream 4. I removed it and reception significantly improved, but still no 7. Antennas Direct sent me a new combiner bar to try first. I installed it and problem solved... For about five minutes. I went outside to tighten the bolts on the mast, came back in and no more 7. So Antennas Direct sent me a new amplifier. Same exact thing! It worked perfectly, but by the time I went outside to tighten the zip tie to attach it to the mast, 7 is gone. And this time it took 9 with it.

Like I said, before everything broke, I had no problems, not even a glitch, on 7 or 9. Any ideas? I'm completely baffled - I basically have a brand new antenna and everything worked flawlessly before.

Thanks in advance for the help... I had no idea where else to post this.
post #8434 of 8459
^ ^ ^

Small update...

The issue may lie with my HDHomerun and not my antenna. Reading the last 10 or so pages of this thread, it seems a few users have/had issues with channel 7 and their HDHomeruns. On a scan, my HDHomerun is picking up 7.1 as 17.1, but 17.1 is too weak for me to pull it in. It is not, however, picking up 7.1 as 7.1. Windows picks up 7.1 as both 7.1 and 17.1, but says no TV signal (I tried disabling 17.1 as a source, no change). If I bypass my HDHomerun completely and just plug straight into my tv, 7.1 comes in perfectly.

Arghhhhh!
post #8435 of 8459
Also note that the C4 wasn't designed for VHF so you could benefit on the signal strength side of the equation by adding a VHF-high antenna. That should help on 7,9, and 12.

Also, is your antenna properly grounded?
post #8436 of 8459
Quote:
Originally Posted by dkreichen1968 View Post

Also note that the C4 wasn't designed for VHF so you could benefit on the signal strength side of the equation by adding a VHF-high antenna. That should help on 7,9, and 12.

Also, is your antenna properly grounded?

Thanks for the reply. I know the C4 isn't supposed to be able to pull in VHF, but I've had pretty good results. I think the culprit is really the HDHomerun. I ordered an avermedia duet to see if that works better.

Is there an all-in-one UHF/VHF antenna that I could replace the C4 with?

Also, antenna is not properly grounded. I'm now running my coax through an APC surge protector and working on properly grounding the antenna.
post #8437 of 8459
A Winegard HD7694P would give you the same gain as you get on UHF from the C4 across the VHF-High and UHF bands. You could also mod the C4 by adding the dipole from the C2-V. You should have fairly strong signals in your area, which is why the C4 has been working for VHF.
post #8438 of 8459
Is the Winegard HD7694P enough? It says 35 miles for VHF and 25 for UHF, but I'm almost 60 miles from lookout mountain. Here's my TV fool if it helps.

http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id%3d46ae648ad46141
post #8439 of 8459
Little secret. The mileage they put on antennas is totally meaningless. "Your mileage may vary" is very much a factor. I've picked up all the full power Denver UHF stations on a 5" loop antenna at 61 miles from the towers. You're picking up 7 and 9 on an antenna that may very well have a negative gain on those channels. The short answer is that the HD7694P should give you as good or better performance on all channels from 7-51 that you are now getting on UHF with the C4.

The longer answer is as follows. When you factor in the difference between dBi and dBd (Antennas Direct likes the dBi number because it's larger) both antennas give you right at 10 dBd of gain on UHF, plus the HD7694P has close to 10 dBd of gain on the VHF-high (channels 7-13) also. Looking at your TVfool, KETD shows up with a noise margin (NM(dB)) of 11.5. 11.5+the gain of the antenna (10 dB) is 21.5 dB. Its recommended you have 10 dB buffer of signal at the TV for reliable signals. If you were to split the signal 4 ways that would be a loss of about 8 dB (4 dB for a 2 way split) and a rule of thumb is 1 dB loss per 20 feet of cable (only true on the higher frequencies, low frequencies have less loss). So, you could have 4 tuners 30 feet from the antenna and you would still have the 10 dB buffer on KETD before you would even need to worry about adding a distribution or pre-amp.
post #8440 of 8459
That's good information to know! Thank you!
post #8441 of 8459

Hey I need some help getting KDVR (FOX) in Boulder. I just picked up a relatively cheap antenna from Best Buy today. I'm getting all the other channels I care about, CBS, CW, ABC, PBS, etc. NBC isn't coming through so well, but I bet I could improve it by messing with the antenna location. The problem is that my TV's tuner won't pick up KDVR at all. I'm just east of the CU campus on the 3rd (top) floor of an apartment building. My antenna is near the ceiling of my west wall facing roughly south.

 

It's snowing tonight, not sure if that makes a difference. It's a $25 dollar antenna, so could I expect any improvement if I return this one and get a better one?

post #8442 of 8459
Which specific antenna did you buy?

Do you have a south-facing window?

Can you post the TVFool plot for your building?

What is the signal path to the due south from your unit like (buildings, trees, etc)?
post #8443 of 8459

Thanks for the reply.

 

I bought this: http://www.bestbuy.com/site/rca-amplified-indoor-off-air-hdtv-antenna/8280843.p?id=1171058630563&skuId=8280843

No south facing window, there is another unit next door. I have a balcony if for some reason outdoor is the way to go.

TV Fool report: http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id%3d5b949e472055cc

I'm not at my place to look right now, but as far as I know there are no buildings or trees that would be considered significantly tall.

 

I'm perplexed because I'm able to get PBS, CBS, and CW which have similar magnitudes, directions, and distances compared to FOX. I just want to watch the Super Bowl without having to hook up a stream from my computer. Thanks again for helping.

post #8444 of 8459
Quote:
Originally Posted by pheidippides View Post

Thanks for the reply.

I bought this: http://www.bestbuy.com/site/rca-amplified-indoor-off-air-hdtv-antenna/8280843.p?id=1171058630563&skuId=8280843
No south facing window, there is another unit next door. I have a balcony if for some reason outdoor is the way to go.
TV Fool report: http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id%3d5b949e472055cc
I'm not at my place to look right now, but as far as I know there are no buildings or trees that would be considered significantly tall.

I'm perplexed because I'm able to get PBS, CBS, and CW which have similar magnitudes, directions, and distances compared to FOX. I just want to watch the Super Bowl without having to hook up a stream from my computer. Thanks again for helping.

At your approximate location in Boulder, reception can be difficult down in the central Boulder Valley for OTA television except for the two PBS stations. Both Rocky Mountain PBS 6 (RMPBS) and Colorado Public Television 12 (CPT12) have digital Boulder translators. The RMPBS translator is on top of one of the Williams Village towers at Baseline and 30th St. broadcasting Virtual 6, RF 24. CPT12's translator is southeast of Boulder on a ridge near the intersection of Marshall and Cherryvale Roads broadcasting Virtual 12, RF 48. Both stations broadcast with three minor (sub) channels.

The FOX 31 tower is the most far south of the three major TV towers on Lookout Mountain above Golden and has a difficult path of getting its signal into the central and west areas of the Boulder Valley due to the terrain in between its tower and the Boulder Valley. The shared ABC 7, CBS 4, NBC 9, and Channel 20 tower is the highest and most east tower on the mountain, allowing those stations to cover some, mostly eastern portions of the Boulder Valley. There is an outside chance you might be able to receive FOX 31 OTA on Virtual 22 from their additional transmitter in Ft. Collins, but I think you are probably too far west and too low in the Boulder Valley.

If you were far enough east in the Boulder Valley, you would receive two sets of RMPBS, both V6 from RF18 on Mt. Morrison above Red Rocks (the main transmitter) and RF24, the Boulder translator. For CPT12, you might also receive two sets of V12, one from the main transmitter on Squaw Mountain west of Evergreen on RF13 and from the Boulder translator on RF48.
Edited by GE AVS - 1/27/14 at 3:06pm
post #8445 of 8459
Quote:
Originally Posted by pheidippides View Post

Thanks for the reply.

I bought this: http://www.bestbuy.com/site/rca-amplified-indoor-off-air-hdtv-antenna/8280843.p?id=1171058630563&skuId=8280843
No south facing window, there is another unit next door. I have a balcony if for some reason outdoor is the way to go.
TV Fool report: http://www.tvfool.com/?option=com_wrapper&Itemid=29&q=id%3d5b949e472055cc
I'm not at my place to look right now, but as far as I know there are no buildings or trees that would be considered significantly tall.

I'm perplexed because I'm able to get PBS, CBS, and CW which have similar magnitudes, directions, and distances compared to FOX. I just want to watch the Super Bowl without having to hook up a stream from my computer. Thanks again for helping.

Fox comes and goes in Boulder for me. It will be fine for months and then suddenly impossible to get a good signal lock. It's been hit or miss the last few weeks. My guess is something somewhere may have been adjusted because Fox has been clear as bell all week after being unwatchable for over a week before that. Boulder's location with respect to Lookout Mtn (LOM) makes antenna aiming a pain (as in using a compass to find the exact spot everything comes in at). Fox is coming in great at the moment and I'm southwest of you in Boulder (near Table Mesa and Broadway) with a rooftop antenna and an antenna mount pre-amp. I'm seeing a signal of 65 for Fox on my series 3 Tivo where it had been down in the 40's a few days ago. I can only reliably receive the translator for channel 12 - I can see the Squaw Mtn signal but if I rotate the rooftop antenna to lock in I lose other channels - I receive both signals for channel 6.

Indoor may not be a strong enough signal - and you may need an amplifier(on the external antenna). It also may be the case your TV hardware is not sensitive enough. My Tivo picks up signals my Sony TV can't lock onto.

As GE AVS said - Boulder Valley OTA is tricky and varies tremendously in short distances because of relative position to LOM, elevation variations, and how much of the mtns as they curve between Boulder and Golden are in the LOS to the transmitter towers.

The odds are not in your favor without a bigger longer range antenna, though being on the 3rd floor your height is probably good. My antenna is only 17 feet above ground and there are some huge trees in my neighborhood but I get good signal reception for Boulder. If the neighbor diagonally behind me ever pops the top on the house I may be in trouble though.

Edit 2/2/14 - and now Fox is gone again signal was fine, then started breaking up and disappeared in less than a minute. And now it's back again from a 31 signal strength to 62. Would love to know what creates the issue on such a random, intermittent basis.
Edited by jafi1 - 2/4/14 at 4:54am
post #8446 of 8459
An unamplified RCA ANT111 may work better than that amplified antenna. Amplified antennas can add noise and even overload the tuner. That is especially true for antennas that were designed before digital TV (which I believe is true for that antenna). The TVfool report shows decent signal strength, but TVfool isn't always accurate.
post #8447 of 8459
Sony Television's "Get TV" (classic movies) finally went live on KTFD 14.3 yesterday.

http://get.tv/
post #8448 of 8459
Has anyone been having issue with KUSA-DT (Digital)? It comes and goes in my home in Aurora. I get all the other major networks but always have issues with this one. The house came with an antenna in the attic just not sure the brand if that could be causing the issues.
post #8449 of 8459
I've not had problems with KUSA-DT 9. Rather my "pain-in-the-neck" is KMGH-DT 7. For the past -2- weeks (until this AM, 26FEB14) has been in the shytter. This AM, I finally got a decent-enuff pix to watch the 1st 15 minutes of GMA. How long will it last??
post #8450 of 8459
Hi,

I'm new to Longmont, and am trying to set up my Dish vip722 with local stations. I have no problems with any of the stations, except KUSA. I scanned local stations, but channel 9 did not come up in the listing. I went to the add channels section of the DVR, and channel 9 shows 0%. Is there anything that I can do to get this to work? I am using an Antennas Direct Clearstream 2 antenna indoors.

Thanks for any help.
post #8451 of 8459
Quote:
Originally Posted by usmaak View Post

Hi,

I'm new to Longmont, and am trying to set up my Dish vip722 with local stations. I have no problems with any of the stations, except KUSA. I scanned local stations, but channel 9 did not come up in the listing. I went to the add channels section of the DVR, and channel 9 shows 0%. Is there anything that I can do to get this to work? I am using an Antennas Direct Clearstream 2 antenna indoors.

Thanks for any help.

KUSA Channel 9 is actually broadcasting on RF9, in the high VHF band. The ClearStream 2 antenna you are using is designed to only receive UHF frequencies which begin at a much higher frequency (> 400 MHz) than the frequency of channel 9 (6MHz bandwidth between 186-192 MHz). I suspect your signal level is also low on channel 7 which broadcasts on RF7 (174-180MHz) . However, 7 broadcasts with more power than 9. Channels 7 & 9 broadcast from the same tower on Lookout Mountain in Golden west of Denver. Channels 4 (RF35) and 20 (RF19) are also on the same tower as 7 and 9. Most of the other major OTA stations are broadcasting on UHF frequencies in the Denver area.

You should consider using an OTA antenna that is designed to receive both high VHF and UHF channels.
post #8452 of 8459
Quote:
Originally Posted by usmaak View Post

Hi,

I'm new to Longmont, and am trying to set up my Dish vip722 with local stations. I have no problems with any of the stations, except KUSA. I scanned local stations, but channel 9 did not come up in the listing. I went to the add channels section of the DVR, and channel 9 shows 0%. Is there anything that I can do to get this to work? I am using an Antennas Direct Clearstream 2 antenna indoors.

Thanks for any help.

Upgrade to a ClearStream 2V. AD sells the kit on their website. It's under "Accessories" and then "Reflectors".
post #8453 of 8459
I'm having issues with channel 9 too. I'm in Fort Collins. I don't understand it. All of the antennas are basically in the same spot, right? Why would 7 come in fine and not 9? Why would 9 work for a few weeks and then completely drop? Is there anything I can do?
post #8454 of 8459
Quote:
Originally Posted by woody777 View Post

I'm having issues with channel 9 too. I'm in Fort Collins. I don't understand it. All of the antennas are basically in the same spot, right? Why would 7 come in fine and not 9? Why would 9 work for a few weeks and then completely drop? Is there anything I can do?

9 was gone Monday and Tuesday, but it just came back this evening. I didn't adjust my antenna or change anything. And I'm not talking about a small change in signal strength - it went from one bar to all but one bar. From nothing to perfect. I just don't understand.

EDIT: and now it's gone again
Edited by woody777 - 4/2/14 at 9:56pm
post #8455 of 8459
I've been having similar problems with KMGH-DT 7 the past few weeks. 9's not as bad for the most part. Sometimes, KZCO-DT 17 comes in slightly better my location. Re-scanning often for KMGH is a real hemmorhoid.
post #8456 of 8459
I haven't been receiving KUSA (channel 9) for past few days, showing up at 0 signal. Hmppf. Before this have gotten it consistently for last 1.5 years since moving into this house.
post #8457 of 8459
Quote:
Originally Posted by dsr15 View Post

I haven't been receiving KUSA (channel 9) for past few days, showing up at 0 signal. Hmppf. Before this have gotten it consistently for last 1.5 years since moving into this house.

Pretty much my exact situation. Anybody got any ideas?
post #8458 of 8459
On Thursday KUSA 9 was back up in time for me to record community and parks and rec. It's up right now as well (Saturday night). I can only assume the spotty behavior this week is on their end.
post #8459 of 8459
Still no channel 9 for me.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Local HDTV Info and Reception
AVS › AVS Forum › HDTV › Local HDTV Info and Reception › Denver, CO - OTA