GNSS Antenna Comparison - Beitian BT-100 vs Taoglas Magma X2 vs RF Solutions ANT-GPSC

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While pursing a PTP/NTP project, I'm evaluating different antennas to use with my U-Blox LEA-M8T module installed on a Huawei WD22UGRC board.

Will be testing the following GNSS Antennas:

Beitian BT-100 - Survey Grade Antenna
https://www.beitian.com/en/sys-pd/1125.html
https://www.aliexpress.us/item/3256809364736760.html

BT-100 picture.png

BT-100 GNSS Antenna Datasheet.pdf

Taoglas Magma X2 - Performance Mag Mount Patch Antenna
https://www.taoglas.com/product/active- ... t-antenna/
https://www.ebay.com/itm/197033369125

magma x2 picture.png

Taoglas Magma X2 Datasheet AA.200.151111.pdf

RF Solutions ANT-GPSC - Entry Level Mag Mount Patch Antenna
https://www.rfsolutions.co.uk/antennas/ ... connector/
https://electropeak.com/ct-gps-active-g ... fxFZ2a9ABM

rf solutions ant-gpsc picture.png

ANT-GPSC-DATASHEET.pdf

Setup is in the closet my time server sits, on a top shelf. Wood constructed house in residential neighborhood, single story houses.
Testing runs for 24 hours, monitoring deviation and skyview plots in U-Blox's U-Center.

GNSS Config:

gnss config.png

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Here are the results of the RF Solutions ANT-GPSC

ANT-GPSC - dev.png

ANT-GPSC - skyview - 1.png

ANT-GPSC - skyview - 2.png

Typical signal levels:

ANT-GPSC - signal levels typ.png

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Here are the results of the Taoglas Magma X2

TAOGLAS MAGMA X2 - dev.png

TAOGLAS MAGMA X2 - skyview - 1.png

TAOGLAS MAGMA X2 - skyview - 2.png

Typical signal levels:

TAOGLAS MAGMA X2 - signal levels typ.png