: AB - Calgary, Lethbridge, Southern Alberta - OTA
Yes, good thing it is dry out here because it froze last night before the varnish had a chance to dry. Oh well, it should hold up for awhile. If global hasn't relocated by the time it fails then I will build a better one, knowing that it works. Checking the path on Google Earth it looks like the signal would be skimming the ground to reach me. So I sure didn't want to put much money or effort into it only to find out I was below the horizon.
I would be happy to post some pictures so others know how easy it is. But, I read the FAQ and there is no "manage attachments" button. There is an "Insert Image" button but it only lets you point to a URL not browse to upload. Is the FAQ out of date?
2009-11-01, 01:39 PM
How To Put Photos in DHC posts:
2009-11-01, 01:40 PM
Even though Global Calgary is broadcasting DTV at low-ish power from from their studio site, TV fool predicts a decent signal for neighbourhoods adjacent to Crowchild Trail.
There's a band of pale green for the station along Crowchild Trail, some 1 to 2 km across, between the University of Calgary and Stoney Trail.
That's good news for people in most of Scenic Acres, Silver Springs and Varsity, plus parts of Arbour Lake, Ranchlands, Dalhousie and Brentwood.
Here is what the yagi sees, pretty much pointed at the horizon
And a shot of the underside showing the Balun. If there is a next time, I would cut a wood form to bend the driven element rather than bending it freehand. I don't know if it would work much better but is would make for a better picture.
2009-11-01, 02:20 PM
With that mount you can experiment with beam tilting (http://www.digitalhome.ca/forum/showthread.php?t=106196) too, if you haven't already. Its time consuming, especially in the cold, but sometimes 2 or 3 degrees of change can mean extra signal if needed.
2009-11-01, 04:00 PM
Thankfully, there is a nice warm chinook wind blowing through today. :)
To drh9: Go to tvfool.com, click on "Online TV Maps" and enter your address to get a signal coverage prediction. You can also call up the terrain profile between you and the Global transmitter to see if you need to do any more tweaking.
2009-11-01, 07:17 PM
My brother just rented an apartment located at 17 Ave and 2nd St SW area. Looks to me like OTA he will get two hi-def digital stations (Are they Hi-def? or just digital?) and a bunch of analog.
Will the fact that he is on the 6th floor improve his reception. His apartment faces south, so I would guess transmitters North of him might have a weaker signal due to the concrete of the other side of his building?
Also, for set-top reception, is a cheap set top antenna OK? Any recs? Radio shack?
2009-11-02, 01:05 AM
dufferdan, 6 floors up is very good, and the Beltline/Mission areas get good reception of CTV and Global, which both carry HD programming on their DTV feeds. See these links for best antenna recommendations:
2009-11-06, 07:38 PM
Well so much for the garage plan,the anntenna is now mounted on the house roof,due to the type of anntenna i purchased from Radio Shack.I picked up what they had in stock a Mini-State UHF-VHF HDMS9100,it has a built in amplifier with remote to adjust the signal.I used my compass and set it at 276N,i seem to only get channel4 in HD pretty clear the other channels are pretty ghostly,so going up on the roof tonite with my 17" LCD and see if i can adjust better then.This anntenna is an orbital type,looks like a UFO,i might take it back and order the Turk38,since i dont really get alot of good reception.
2009-11-06, 09:56 PM
valkyrie, if its not on the Antenna Chart I would not buy it. Period. :) There is only one place in all of Canada that I mention UFO antennas like your Mini-State as a possibility (one local area of the Niagara Peninsula in Ontario, btw) so please get a refund if you can.
The problem you face is that the CTV and Global UHF digital stations are coming from vastly different directions from you, as downbeat has shown in Post #517. Use a moderately-sized Combo antenna pointed at the existing analogue VHF and UHF stations on Broadcast Hill, and you'll get CTV in digital too. As the Antenna Chart shows, the best models are either a Winegard HD7078P or a Channel Master 3679 locked into place directly at Broadcast Hill.
For Global's digital station I would hook up a small Channel Master CM4220 2-bay UHF antenna aimed at it, then use the directions in Post #16 of the OTA FAQ to combine it into your system.
2009-11-06, 11:06 PM
I sure see why this forum encourages how a different design is important for reception.I just need to find a dealer somewhere, so i"ll try googling it in,most of them are listed in the states,thank you again for your help, hope my mistake helps others
2009-11-07, 11:55 PM
Photo showing the 3 large broadcast Antenna Arrays on the new Mast.
At the top, the UHF panel Array. Immediately below, the first of the FM Arrays (space has been reserved for a complete additional FM array). Below the replacement VHF Channel 2 Antenna Array.
Global would have preferred two of these VHF arrays producing an ERP of 100 KW but the mast space
proved insufficient to allow this.
See photo in Post #18: http://www.digitalhome.ca/forum/showthread.php?t=114203
2009-11-08, 03:30 AM
Sweet!!! Thanks for sharing the pic. Now, if only there was something being broadcast from the UHF antenna ... LOL. I know it's coming, as per post #507.
2009-11-08, 03:36 PM
OK - yes - I will check on Monday to see if there is any progress at Global for an increased power on-air date! I can't help but think that this may be political what with the present goings on between broadcasters and cable networks etc?? The last time I spoke to Global, they were lacking some hardware as I had already thought.
Do you know if there is any way I can submit more of my pictures? Looks like there is a strict limit as I can't seem to be able to upload anymore?!! :confused:
It should also be noted that CFCN-DT is only using a 100 Watt transmitter with an ERP of 1 KW. This signal could also stand some more power behind it! My 8 bay amplified CM 4228 antenna only provides 70% signal here in Banff Trail. I recieve a relatively stronger CICT-DT signal from my PR-9032 Winegard from Barlow Trail at nearly 80%. Both pictures are very good in HD and very stable.:)
2009-11-13, 03:18 AM
Some weeks ago, after receiving a message from CBC/Radio-Canada (quoted above in post #493) relating their digital conversion in Calgary, I wrote them back with a suggestion.
Seeing how digital TV on VHF seems to be causing so much trouble in the U.S., I proposed to CBC/Radio-Canada that when they convert CBRT and CBRFT to digital, they flip their allocations (CBRT would go on UHF 16 with high power; CBRFT would go on VHF 9 with low power).
Assuming the CBC takes my idea to heart, the CRTC wouldn't be opposed to such a swap, would it?
2009-11-13, 03:24 AM
It should also be noted that CFCN-DT is only using a 100 Watt transmitter with an ERP of 1 KW. This signal could also stand some more power behind it!
Indeed ... It is curious, seeing how they are licensed for a maximum ERP of 204 kW in certain directions.
2009-11-13, 04:05 AM
I have a hunch that they might be purposely keeping the RF radiation down for now, given all the tower construction and equipment installations happening up on Broadcast Hill. That's pretty standard procedure, but mind you if the old analogue signals are still cranking out at huge power levels up there it wouldn't make sense.
2009-11-19, 03:29 AM
Got my antennas the Channelmaster 3679 & CM4220,i just clicked on the OTA FAQ link to post #16 and i got "isnt all this OTA stuff illegal"..how do i find directions for to combine the CM4220?
2009-11-19, 03:59 AM
valkyrie, try this:
2009-11-19, 03:57 PM
thank you so much Downbeat,being a newbie here and not sure how to follow the links,i'm going to set that antenna up tommorow and read through the thread suggested.So the reason it was suggested for a second antenna was to pick up Globals station,yet according to the map i was sent,it was advised to point the antenna in all the same direction, so an update is that Global is a different direction now?And what direction are they situated at now?(using the UHF 2Bay antenna)Also on Post #16 suggests to mount it 25" below the other antenna,correct?