# p243-pcb-impedance-coupon-tdr-testing

_Published: 2026-09-16_

[https://www.bestpcbs.com/blog/wp-content/uploads/2026/09/p243-pcb-impedance-coupon-tdr-testing.jpg](https://www.bestpcbs.com/blog/wp-content/uploads/2026/09/p243-pcb-impedance-coupon-tdr-testing.jpg)