: AB - Edmonton, Northern Alberta - OTA


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JKR1963
2009-06-23, 12:11 PM
in Edmonton near NAIT.

I have checked this am for the Global OTA signal and I am still not getting it at my location.

I just checked on my Sony tv and am also getting the signal on ch 92.2 via Shaw Cable as prev poster. They are showing standard def shows right now, so I will have to wait until later today to see any real HD.

If will be facinating to compare the cable version and the OTA version once the OTA signal is receivable.

stampeder
2009-06-23, 12:12 PM
What kind of antenna are you using, JKR1963?If will be facinating to compare the cable version and the OTA version once the OTA signal is receivable.All things being equal, most people find that the colours are a bit richer and the audio a bit deeper than Shaw QAM HD. It'll be miles better than Bell TV satellite HD.

recycleman02
2009-06-23, 04:42 PM
ok so did a scan again and nothing with ota. i did manage to pick it up on shaw with channel 92-2. Does shaw usually scramble these channels or will they leave it unscrambled? owell.

JKR1963
2009-06-23, 06:03 PM
Stampeder...I have an RCA CANT135 that I bought 10 yr's ago at Sears.

I am not able to receive Global via this antenna (yet)...I don't know if there is a signal in the air yet or not.........but I am getting it through my Shaw Full
Cable service on channel 92.2.

I have not yet seen a real 1080i program yet as I just found out about the signal today........I am hoping the 6pm news and tonights programing will be in true HD.

stampeder
2009-06-23, 07:34 PM
recycleman02 and JKR1963, I think given the low power of Global at this time you should consider a better antenna. See the Antenna Chart link for best options:

TRENT310
2009-06-23, 10:07 PM
Well, as we determined, apparently they ARE indeed running off the tower usually used for studio-transmitter-links and that tower does not have much height above average terrain to be able to cover the north side effectively. Looking at it today, I guesstimate about 20-some meters.
The relatively low power used is also not going to get past objects. So, if you live quite far away from Allard Way, A solution would be to increase HAAT on your receiving end by mounting an outdoor antenna sufficiently high on the mast.
I will have to do further trials with digital television in motion. Going down 51st avenue between 111 st and gateway blvd. is absolutely no problem because it's full line of sight to their tower, but again, the lack of HAAT means that the signal dies very rapidly.
I am able to receive it in Leduc county with this engineered piece of copper (model unknown) mounted near the top on my 50 meter mast. Then again, pointed south, I can get CHCA as well on that thing.

Or...since you all seem to have cable, you could just use that, however I understand the desire to successfully pull in broadcast ATSC in Edmonton. :)

TRENT310
2009-06-23, 10:29 PM
...I don't know if there is a signal in the air yet or not.........
It definitely is there, and I had to discover that quite annoyingly because I was using some of my wireless microphone systems on 669.300MHz, which is close to Channel 47. I turned off the squelch just to hear how ATSC sounds when picked up by an audio receiver. Doesn't sound like much with a FM receiver since ATSC is 8VSB, but it really messes up the receiver because it supports data between the mobile transmitter (for name, battery charge status, etc.) and it just keeps on decoding weird things. Either way, it prevents proper signal transmission between a mic and the receiver, and basically affects it for about 2MHz on either side of that frequency.

That's the only thing I really hate about stations signing on in the 40s channel range in UHF, because they take out a bunch of frequencies I can use for wireless mics. I'm still kinda reeling after CKES signed on...
Oh well. I'll just buy high end frequency agile equipment and deal with it then. Just pointing out how this could potentially be seen as a bad thing.

TRENT310
2009-06-23, 10:39 PM
recycleman02 and JKR1963, I think given the low power of Global at this time you should consider a better antenna. See the Antenna Chart link for best options:
Are they running at full power right now or doing the 'stepped power levels' thing as is usually done when testing DT transmitters? I did not bring my field strength meter with me, maybe I should do that in order to get a rough idea at least.

stampeder
2009-06-24, 11:34 AM
They're at full tilt right now, albeit with a very low ERP and HAAT until they move to the original tower site in the future.

j0dest3r
2009-07-03, 11:55 PM
I'm assuming there is no chance of picking this puppy up in Spruce. Especially with no tower. I do see it on Shaw and it looks soft, but what do you want for free lol... Any ideas how long it might stay in the clear?

I have a USB ATSC tuner so I will take my laptop and play one of these days on the south side of Edmonton.

j0dest3r
2009-07-10, 10:22 AM
They have some info on their site including a coutour map.

http://www.globaltv.com/globaltv/edmonton/HD/hdindex.html

Can somone tell me if this seems accurate? According to this contour map I should be able to pick it up in Spruce Grove???

http://www.globaltv.com/globaltv/edmonton/HD/CITV-DT_(TRANSITIONAL)_ESTIMATED_COVERAGE_CONTOURS.pdf

stampeder
2009-07-10, 01:00 PM
j0dest3r, those contour plots are designed to illustrate what someone with a high quality outdoor UHF antenna mounted about 10' up on the roof would likely get. Does that match your own situation?

The inner plot is the most important one, and it looks like it fades just in and around Spruce Grove/Stoney Plain.

envirogeek
2009-07-12, 09:56 AM
Stampeder, looking at the contour plot, you can just see the northern edge of pigeon lake down in the southwest corner. Do you think there is a snowball's hope of getting reception there with one of the deep fringe antenna's on the antenna chart?

stampeder
2009-07-12, 12:48 PM
envirogeek, unfortunately during this transitional phase you'd have no luck. Today you can get all the original analogue stations there, so when the Edmonton stations are at full power in DTV I'd expect that deepest fringe gear would get them.

Link to the CITV Transitional Countours map:

http://www.user.dccnet.com/jonleblanc/images/CITV_transitional_contours.jpg

j0dest3r
2009-07-13, 09:25 AM
Nope. I don't have anything at all. Time to start building~ ;)

It won't be a 10' tower though.

schnerd
2009-07-17, 01:18 AM
Receiver: Pansat 9200HD, firmware version 1001 (seems to work better than newer firmware with weak signals). Signal quality threshold required for picture is approx 64 on signal meter.

Antenna: Radio Shack Archer-branded 4-bay bowtie with rod reflectors, mounted on 20' temporary mast, with Winegard amplifier.

Location: West end of South Cooking Lake, 26 Km LOS from transmitter.

Notes:

First attempted reception 3 days ago using a 10' mast, with signal quality reading of around 16. Signal increased greatly with amplifier, increasing to around 32, but well below threshold.

Raised antenna to 20' the following day, and signal quality increased to around 42 as of 5pm. However, signal quality continued to increase through the evening at a fairly linear rate, reaching the minimum quality threshold of 64 by 6:30pm, and peaking at around 70 by 10pm. The same thing occurred again tonight until 10pm, when it plummeted to around 32. Not entirely sure if they are varying output power, or some other wacky phenomenon is occurring.

Found antenna aim to be far more critical than I would have expected on a 4-bay, with a change of +/- 10 degrees proving significant.

As others have pointed stated, when there is a picture, it looks quite impressive...

heffie512
2009-07-19, 04:37 PM
I put together the coat hanger antenna yesterday with a 10bd signal (source by circut city) booster. not a great time to be searching tv signals in a storm.
Results:
ch 13 Global -digital - real hd great picture. 16:9
ch 3 CFRN - static
ch 9 access - static
ch 45 christian channel - some static 4:3
ch 51 city crystal clear - not digital 16:9
ch 17 CHCA (red deer)noise with volume
ch 5 CBC lots of static - poor picture no volume
ch 56 onmi - not hd clear with little static (could have been the storm) 4:3?
ch 11 CBC french very poor but better than ch5
ch 47 static

I am using the tuner with my HDTV

Heffie

roger1818
2009-07-19, 09:39 PM
heffie512, just so you know, those coat hanger antennas are only good for UHF (Channels 14-69). For VHF (Channels 2-13) you will need a larger antenna.

Tomato9876
2009-07-27, 08:34 PM
Hi all!

I built one of those Coat hanger HDTV antennas from YouTube just for an experiment, and I was able to pick up Global in HD at about a signal strength of about 10-20%. (Channel 47 or 13-1) I had a relatively long Coax cable laying around, so I hooked it up and placed the antenna laying down on the roof of my house (it's a bungalow), and pointed the but-end of the piece of wood in the relative direction of the Global transmitter. I wasn't able to pick up the signal while in the house, or with the antenna at ground level. I'll be experimenting later with it to get more signal strength by getting a longer cable to move it further up the roof.

The Quality of the High-def is amazing! Even the Standard-def News looked significantly better than my Telus TV, and it has the added bonus of some HD programming, though the majority is just SD.

As for Analog Stations, they aren't much to look at. I got a decent signal with the Global Channel 13 (analog) and barely watchable signals for Omni 56 (analog) and CityTV 51 (analog). Most of the rest are VHF and they are unwatchable, sometimes there isn't any audio. And I know that's because I need a different antenna, but I'm not interested in Analog OTA anyway.

roger1818
2009-07-27, 09:27 PM
And I know that's because I need a different antenna, but I'm not interested in Analog OTA anyway.

Just remember that many digital broadcasts will be on VHF after the analog shutdown in 2011.