AEA SWR [6050-5050] Site Analyzer Kit. SWR Site Analyzer Single port unit with easy to use FDR (Frequency Domain Reflectometer), SWR and Return loss measurements. Featuring full color back-lit display with excellent daylight readability. 50 memory slots for saving plots to recall on the Site Analyzer or upload to a PC using. Site Analyzer PC Vision™ software. Includes field replaceable “AA” NiMH batteries. Easy to navigate menus, user selectable color settings and measurement plot displays. The SWR Site Analyzer has a user selectable limit lines for at-a-glance tuning and One button Auto-tune in SWR/Return loss locates the antenna’s best SWR or Return loss. Ease of Operation Makes the Liberator Analyzer flexible for both the novice and engineer level person to use with minimal training. PC communications is via USB-2 (cable included).