Uvavanyo lwe-TDR okwangoku lusetyenziswa ikakhulu kwi-PCB yabavelisi bebhodi yesekethe yebhetri ( iibhodi zesekethe eziprintiweyo ) imigca yesignali kunye novavanyo lwe-impedance yesixhobo. Kukho izizathu ezininzi ezichaphazela ukuchaneka kovavanyo lwe-TDR, ngokukodwa ukubonakaliswa, ukulinganisa, ukukhetha ukufunda, njl.Ngokucacileyo, ngenxa yokuba i-TIP kunye nendawo yoqhagamshelwano yomgca wesignali iya kubangela ukupheliswa okukhulu kwe-impedance, kubangela ukubonakaliswa ukuba kwenzeke, kwaye kubangela ukuba ijika le-impedance yomgca wesignali ye-PCB iguquguquke kwindawo emalunga nee-intshi ezintathu okanye ezine.
Umfanekiso: ENIG ukuntywiliselwa 4 umaleko Blue solder imaski FR4
Okufana nemigca yesignali enesiphelo esisodwa, imigca yesignali yokwahlukana, izihlanganisi, njl. Olu hlobo lovavanyo lunemfuno, oludibanisa kunye neemeko zesicelo zangempela.Ngokomzekelo, umgca wokunyuka wokwenyani womgca wesignali womgca wesignali malunga ne-300ps, ngoko umgca wokunyuka we-TDR ye-pulse signal ye-pulse kufuneka umiselwe ngokuhambelanayo kufuphi ne-300ps endaweni ye-30ps.Ukunyuka kwasekhohlo nasekunene, kungenjalo iziphumo zovavanyo zinokwahluka kakhulu kwisicelo sangempela. 
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