# Measured height facet vs L5 antenna

**URL:** <https://community.sparkfun.com/t/measured-height-facet-vs-l5-antenna/63023>\
**Category:** GPS/GNSS\
**Created:** [January 26, 2025, 4:01pm UTC](https://community.sparkfun.com/t/measured-height-facet-vs-l5-antenna/63023 "2025-01-26T16:01:03Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![rftop](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/rftop/32/6121_2.png) [@rftop](https://community.sparkfun.com/u/rftop)\
**Post date:** [January 26, 2025, 4:17pm UTC](https://community.sparkfun.com/t/measured-height-facet-vs-l5-antenna/63023/3 "2025-01-26T16:17:12Z")

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That’s the differences in Physical/Mechanical Phase Center and the actual RF Measured Phase Centers.

> [@What't the height of antenna, GNSS Multi-Band L1/L2 Surveying Antenna - TNC (TOP106)](https://community.sparkfun.com/t/whatt-the-height-of-antenna-gnss-multi-band-l1-l2-surveying-antenna-tnc-top106/62663/6):
>
> Since I was already on the NGS page : The Facet - [SFEFACET](https://www.sparkfun.com/sparkfun-rtk-facet.html) Actual L1 Phase Center 2.46 N -0.93 E 71.84 UP Actual L2 Phase Center 2.21 N 5.44 E 67.25 UP The Tri-Band - [SFESPK6618H](https://www.sparkfun.com/gnss-multi-band-l1-l2-l5-surveying-antenna-tnc-spk6618h.html) Actual L1 Phase Center 0.47 N -1.26 E 48.02 UP Actual L2 Phase Center 2.73 N -1.87 E 35.91 UP Actual L5 Phase Center 3.16 N -2.02 E 36.91 UP But please verify the numbers before you use them face_with_peeking_eye

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