TRP as a measurement in marketing is focusing on that ratio of all recipients through the whole reached audience (i.e. through the Gross rating points – GPRs) that are considered to be the “right target” for a specific product and/or service. TRPs are thus subdivisions out of GPRs. For example, an advertiser spends in a campaign using radio as a channel to reach all men in a region (GPR) while the core target for his products are men 35-55 years of age (TRP). Determining both in a right way is critical to employment of marketing channels of communication
