According to Industry Canada's database, a digital transmitter for CFTO (CTV) in Peterborough has been approved on channel 35 at 38000 watts. This can be seen in stampeder's list:

http://www.user.dccnet.com/jonleblanc/Canada_TV_Stations/DT.html

That's good news! I was expecting 10kW. I wonder if the increased ERP is an indication that the Wingham repeater won't survive post-transition?

I wonder if the increased ERP is an indication that the Wingham repeater won't survive post-transition?

Wingham isn't a mandatory market and channel 8 is within band so I don't see why they would shut it down just yet.

Disclaimer:


CJCH Halifax

[pic removed]

Read ya l8r,
Al
CJCH uses its contour to literally retransmit CJCH-1 Canning.
As soon as the digital transmitting equipment arrives next year, CJCH will be transmitting digitally on the same stick as C100/ 101.3 The Bounce/ Q104/ 96-5 Kool/ Z103/ & Live 105. It makes sense as they current share a stick with CBC and Global and are moving to one owned by CHUM radio Halifax (which is owned now by CTV- which will be owned by Bell next year).

/A\ Channel Atlantic will continue to be Satellite only as condition of their license (which allows them to basically twin stick from the same studios in Halifax). Other conditions of ASN (now /A\) includes running Distance Education and not soliciting local advertising.

So, CFPL-DT on RF10 is 45KW but CKCO-DT on RF13 is only 12KW. I wonder why /A\ is so much higher.

Wingham isn't a mandatory market and channel 8 is within band so I don't see why they would shut it down just yet.
I realize this. But Wingham is moving to a UHF designation. They may decide to not bother. One of the members here visiting the open house earlier this year heard from the staff that they did intend to keep Wingham. So who knows?

But Wingham is moving to a UHF designation. They may decide to not bother.

That move would only happen once they decide to switch to DTV. I agree that they may not bother to transition it to DTV and may shut it down at that time. The extra power for CFPL-DT may be to make that a possibility. Only time will tell though.

The extra power for CFPL is likley to help curb the interference from WOIO-DT Cleveland, also on VHF 10.

However in WOIO's case, they only broadcast with 9.5 kw ERP so CFPL will more the likely kill them.

CPFL-DT (A London) now shows up in Industry Canada's database as having been approved for channel 10 at 45000 watts.
That's horrible news for anyone who lives in London. CFPL has caused overloading problems for decades and continues to do so. A 10,000 watt CFPL would have provided some welcome relief. They have a 1,000 foot tower so ERP would be higher and LOS is possible from a considerable distance. The stations that need more power are CKCO and CIII since they are 1 or 2 edge over much of London and have much lower towers.

hmmm CFPL 45kW.

I am sure it is a typo. When I was at the open house. The Engineer stated that CFPL would broadcast at 14kW.

Plus, If it is 45kW then surely the signal would be null South (toward Cleveland) and/or It HAAT will be reduced.

CKCO doesnt need more ERP. Since, CTV may duplex (A/CTV) the signal.
However, A stronger CIII Paris signal would be much appreciated. CIII signale could be null east. <:

Read ya l8r,
Al

IIRC, the absolute maximum ERP for a vhf hi dtv station in and near the FCC's Zone I (http://www.rabbitears.info/Zone1.jpg)area is 30kW. I would think that given the close proximity, CFPL would have to abide by this also. If 45kW goes to air, wow that would be a absolute torch. People located 70+ miles out should have no problem picking it up.

CTV must have twisted someone's arm to get bumped from an allocated 10,100 watts to an approved 45,000 watts on VHF-hi. It also shows what a pile of manure their threats to close the station down were. This is especially odd considering some of the other allocations, such as TVO being cut from 38,300 to 1,200 watts on channel 18.

Keep in mind the IC database shows the maximum ERP in the case of directional stations. There could be a deep null from CFPL towards the U.S., for example, but that won't necessarily be reflected in the available data.

There could be a deep null from CFPL towards the U.S., for example, but that won't necessarily be reflected in the available data.

Very true. If it is directional, the IC database should include pattern number, but Stampeder's parser doesn't seem to extract that.

The other thing to consider is that the geography that makes it difficult for people in London to receive stations in the US will also make it difficult for London stations to reach the US.

Phil 81 your comments regarding the absolute max ERP of a VHF Hi station at a30KW is wrong. If you search the FCC database you will find that station KTTV in LA on Ch-11 is approved for 115KW ERP.

LA isn't in Zone 1 though....

Stampeder's parser doesn't seem to extract thatYep, in 2006 when I started my data pump I opted not to include the pattern numbers because they only pointed to a table of numbers that reference the patterns, which unfortunately are not themselves included in the IC database. Readers would have had to research the patterns separately out of other IC info, which was not easy to find.

Thankfully now we have Emerald_Boar (https://www.digitalhome.ca/forum/member.php?u=55906)'s many CRTC maps to help.

One of these days I intend to pump some appropriate data to Trip (http://www.digitalhome.ca/forum/member.php?u=91154) for creating Splat! maps of the patterns.

One of these days I intend to pump some appropriate data to Trip (http://www.digitalhome.ca/forum/member.php?u=91154) for creating Splat! maps of the patterns.

Some stations already have patterns registered with the FCC or I've dug up from the CRTC site for them.

I get the impression that CFPL is omni now and I suspect they're planning to recycle the existing antenna. Using that assumption, I generated a map for CFPL last night. http://www.rabbitears.info/contour.php?appid=1282949&map=Y

I should send you a message again at some point, stampeder. I was going to ask again about adding the AGL data... :)

- Trip

Industry Canada does not have to comply with US max power level requirements.They often exceed US max levels.London is far enough from the US and VHF digital needs alot more power to be effective over the same range as analog.CFPL getting 45kw is good.

The IC TVSTATIO.dbf database shows the station as directional at 45 KW. The antenna pattern information is available in the APATDAT.dbf database but it has over 65 thousand rows which exceeds the capacity of the Open Office database program. Each antenna is represented by multiple rows which show the gain for each bearing. A precise pattern done to 1 degree accuracy will take 360 rows.

If someone has a program with greater capacity (ie: dBase) the patterns for CFPL are numbers 8327, 8381 and 8382.