# About the Signal and Power category

**URL:** <https://sierraconnect.protoexpress.com/t/about-the-signal-and-power-category/25>\
**Category:** Signal and Power\
**Created:** [September 5, 2023, 10:20pm UTC](https://sierraconnect.protoexpress.com/t/about-the-signal-and-power-category/25 "2023-09-05T22:20:40Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![lucy.sierracircuits](https://sea2.discourse-cdn.com/sierraconnect/user_avatar/sierraconnect.protoexpress.com/lucy.sierracircuits/32/8_2.png) [@lucy.sierracircuits](https://sierraconnect.protoexpress.com/u/lucy.sierracircuits)\
**Post date:** [September 5, 2023, 10:20pm UTC](https://sierraconnect.protoexpress.com/t/about-the-signal-and-power-category/25/1 "2023-09-05T22:20:40Z")

</div>

This category is for users who seek help or wish to share their experience with PCB signal and power.

Our subcategories are:

- [Impedance](https://sierraconnect.protoexpress.com/c/signal-and-power/impedance/18)
- [Signal integrity](https://sierraconnect.protoexpress.com/c/signal-and-power/signal-integrity/19)
- [Power integrity](https://sierraconnect.protoexpress.com/c/signal-and-power/power-integrity/20)
- [High speed and frequency](https://sierraconnect.protoexpress.com/c/signal-and-power/high-speed-and-frequency/21)
- [EMC and EMI](https://sierraconnect.protoexpress.com/c/signal-and-power/emc-and-emi/22)

**Tag [@Sierra\_Experts](https://sierraconnect.protoexpress.com/groups/sierra_experts) for a quick answer!**