A system, comprising a remote location server (502 ) and a mobile device (106, 502 , 502 ), the remote location server (502 ) comprising computer-readable storage media that comprise a set of instructions that, when executed by a processor, cause the remote location server (502 ) to: obtain data sensed by a mobile device (106, 502 , 502 ) at a position; evaluate the sensed data and survey data to identify a venue proximate to the position, the survey data of the venue organized into regions and then individual regions organized into sub-regions; compare signal strengths of the sensed data to signal strengths of the survey data to identify the position relative to an individual region, wherein the comparing utilizes a receiver gain offset range between the mobile device and another device that acquired the survey data; refine the receiver gain offset range into a sub-range of the gain offset range based on the comparison of the signal strengths of the sensed data to signal strengths of the survey data; and the mobile device (106, 502 , 502 ) comprising: a sensor configured to sense radio frequencies; and a computer-readable storage media that comprise a set of instructions that, when executed by a processor, cause the mobile device (106, 502 , 502 ) to: cause the sensor to sense values of at least some of the radio frequencies at a position, transmit the sensed values to the remote location server (502 ), receive a location of the position relative to a region from the remote location server (502 ), receive the refined sub-range of an estimated receiver gain offset for the mobile device (106; 502 ; 502 ), identify a position relative to an individual sub-region within the individual region utilizing the refined sub-range of the gain offset range. obtain data sensed by a mobile device (106, 502 , 502 ) at a position; evaluate the sensed data and survey data to identify a venue proximate to the position, the survey data of the venue organized into regions and then individual regions organized into sub-regions; compare signal strengths of the sensed data to signal strengths of the survey data to identify the position relative to an individual region, wherein the comparing utilizes a receiver gain offset range between the mobile device and another device that acquired the survey data; refine the receiver gain offset range into a sub-range of the gain offset range based on the comparison of the signal strengths of the sensed data to signal strengths of the survey data; and the mobile device (106, 502 , 502 ) comprising: a sensor configured to sense radio frequencies; and a computer-readable storage media that comprise a set of instructions that, when executed by a processor, cause the mobile device (106, 502 , 502 ) to: cause the sensor to sense values of at least some of the radio frequencies at a position, transmit the sensed values to the remote location server (502 ), receive a location of the position relative to a region from the remote location server (502 ), receive the refined sub-range of an estimated receiver gain offset for the mobile device (106; 502 ; 502 ), identify a position relative to an individual sub-region within the individual region utilizing the refined sub-range of the gain offset range. cause the sensor to sense values of at least some of the radio frequencies at a position, transmit the sensed values to the remote location server (502 ), receive a location of the position relative to a region from the remote location server (502 ), receive the refined sub-range of an estimated receiver gain offset for the mobile device (106; 502 ; 502 ), identify a position relative to an individual sub-region within the individual region utilizing the refined sub-range of the gain offset range. <EOS>