AVIONICS TDR and SWR SITE ANALYZER KIT/Includes the 6021-5154 Avionics TDR Kit and 6050-5050 SWR Site Analyzer 2151-5000Avionics TDR and SWR Site Analyzer KitThe Avionics TDR (6021-5154*) troubleshoots OSP, drop, or twisted pair cables (CAT 2 to Cat 6A) and single wires in bundles or harnesses. It u..