Guriga ay ku sameyn doono xaaladaha kable RF waxaa lagu talin doona in macluumaad ah ee dhammaan ka mid ah ugu yaraan iyo uga soo saarantahay. Ruksha ah, TDR (Time-Domain Reflectometry), wuxuu ka qeyb qabto sheekooyinka kableka si aad uga talin doonaysa dibadda ama dhicitaanka impedance. FDR (Frequency-Domain Reflectometry) wuxuu isticmaal doona caqabadaha sheekooyinka kableka. Si toos ah TDR iyo FDR, waxaa la talagalay caqabadaha kale ee ku jirin doono, ku yaal inaad uga talin doonaysa dambeystiran ku saabsan oo ka mid ah testerka kable ee ahayd albaabihii diagnostic tools. Testerkaas waa la iska cararin doonaa carruurtaan kable ku socdo si aad uga talin doonaysa dhaawacadda RF ee ugu yaraan iyo uga soo saarantahay.