Re: [IRCA] [NRC-AM] Errant Canadian signals

[Barry McLarnon <bm@xxxxxxxxxxxxxxxx>]

On 02/06/2014 08:01 AM, Chernos Saul wrote:
> CIWW 1310 Ottawa was reported in MN on the NRC DX Tips list last 
> night. They've been doing this a lot when I've been at my Burnt River 
> ON site, and have also been reported by others as far as MO and MN 
> (NE?). They were huge here in Toronto last night.
>
> 1280 Montreal has also been reported as considerable distances, and 
> I've also noticed it unusually dominant at Burnt River.
>
> But I'm not5 sure if these two are regulars at night, as I've been in 
> Toronto for the past week and here for two more before returning for 
> another round of DXing. But I am thinking of calling their engineering 
> heads.
>
> First, though, I need to know:
>
> 1) How far out they are making it AT NIGHT, WELL EXCEEDING THEIR NIGHT 
> PATTERNS, WITH GOOD SIGNALS. And HOW FREQUENTLY.

Hard for me to tell about CIWW, since I'm only 7 km away from their 
transmitter site, and squarely in the boresight of both their day and 
night patterns.  Their signal level should bump up a bit when they 
switch to night pattern, so I'll check tonight and see if I can see any 
difference.

CFMB has definitely been staying on day pattern at night lately. Their 
nighttime DA is an in-line 6-tower configuration with a very tight 
pattern to the NNW.  I'm due west of them, and they should be inaudible 
here at night, but lately they've been dominating the channel.  You can 
see how they'd have an incentive to "forget" to switch, as their night 
pattern would provide very poor coverage of the 'burbs to the east and 
west of Montreal, and along much of the the south shore.

> 2) Are any OTHER Canadian stations doing the same?

The most blatant example that comes to mind is CJVA-810 in Caraquet NB.  
Their night pattern throws virtually all of their signal to the NE, 
since they're required to provide a high degree protection to co-channel 
Class A WGY.  And yet, they bomb into my location, 860 km to the west of 
them, night after night, sometimes even topping WGY (only 320 km from 
me).  Again, they have a strong incentive not to switch: their daytime 
ND pattern provides good coverage of some large populated areas to the 
west (i.e., around Bathurst NB), which would be lost completely at night 
if they switched to their nighttime DA.  On the other hand, they have an 
FM simulcast that covers these areas, so one wonders why they would 
bother to cheat, or indeed why they bother to keep the AM on at all.  In 
any case, I have no hesitation in saying that they cheat, since this has 
been going on for many years.

Barry

--
Barry McLarnon  Ottawa, ON

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