WRVZ447

I am new to this site (and GMRS in general) however, when using a repeater the Tx Frequency and the Rx frequency are generally different. So unless you are scanning both the Tx and Rx frequency (on your radio) you will only hear the "Repeater" traffic. The PL "Tones" effectively are a filter to filter out anyone who is not using them. (Think PL as Private Line). If you are close enough to not need the repeater, then your Tx and Rx would be the same frequency. Repeaters are used to get greater distance, typically for lower powered handhelds or in areas with significant variations in the terrain. (mountains, valleys, etc...)