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It is the most often cited of the COST 231 models (EU funded research project ca. April 1986 – April 1996), [1] also called the Hata Model PCS Extension. This model is the combination of empirical and deterministic models for estimating path loss in an urban area over frequency range of 800 MHz to 2000 MHz.
For example, a "2 by 4" wood stud wall with drywall on both sides results in about 6 dB loss per wall at 2.4 GHz. [2] Older buildings may have even greater internal losses than new buildings due to materials and line of sight issues. Experience has shown that line-of-sight propagation holds only for about the first 3 meters.
On December 13, 1984, the CRTC approved a number of applications for a number of AM radio stations across Ontario including CKOB Renfrew to increase their nighttime power from 250 watts to 1,000 watts. [2] Ottawa Valley Radio, including CKOB in Renfrew and CKOA in Arnprior, was sold by then-owner Jamie Pole in 1991 to Annapolis Valley Radio Ltd.
CPP is the cost of an advertising campaign, relative to the rating points delivered. In a manner similar to CPM, cost per point measures the cost per rating point for an advertising campaign by dividing the cost of the advertising by the rating points delivered. [4] The American Marketing Association defines cost-per-rating-point (CPR or CPRP) as:
[4] [5] Brown ultimately moved to the Senators' radio broadcasts alongside Gord Wilson. [6] During the 2006–07 and 2007–08 seasons, several games were only available in video on pay-per-view or at local movie theatres in the Ottawa area. [7] The "Sens TV" service was suspended indefinitely as of September 24, 2008. [8]
AVR was later granted licences for stations in Ottawa, Calgary, Vancouver, Kitchener-Waterloo and Montreal. Separately from Aboriginal Voices, numerous smaller First Nations radio stations operate in local communities, although each often serves a large geographic region through the use of rebroadcast transmitters.
Friis' original idea behind his transmission formula was to dispense with the usage of directivity or gain when describing antenna performance. In their place is the descriptor of antenna capture area as one of two important parts of the transmission formula that characterizes the behavior of a free-space radio circuit.
The Lee model for point-to-point mode is a radio propagation model that operates around 900 MHz. Built as two different modes, this model includes an adjustment factor that can be adjusted to make the model more flexible to different regions of propagation.