CityTV HD receptiion level was below 20 units today, therefore no signal lock. The signal variance was a good 15 units. I checked all the other HD channels and they were as expected, all above 70 units.

Yesturday the CITYTV HD signal strength was up in the low 70's there was hardly any variance.

I know what the CityTV engineer was talking about with multi path reception. The test will be a seperate antenna pointing directly at the CN Tower. I'll try that in a few weeks time.