Test equipment needed to measure the RF power from an Aironet 1500 AP

[RadioTech1]

Is there a piece of test equipment I can use to measure the RF Power from an Aironet 1500 AP? I need to determine if people in a building are working far enough away from an existing Aironet 1500 AP unit. Many thanks,  Chris.

[Leo Laohoo]

Fluke Network's Airmagnet Spectrum Analyzer is second to none.

For freebies:  Netstumbler and inSSIDer.