Table A2.

RTKLIB PPK North component MADs in mm using $L_1$ and $L_2$ data ($L_1{L}_2$ column) and $L_1$-only observations ($L_1$-only column). The uncorrected results (no corr.) are shown on the left. The columns on the right ($\mathsf{\Delta }$ corrected) show the MAD decrease (indicated by a ‘-’ sign) after applying the elevation-only-based calibrations with the averaging resolutions 0.1°, 1°, and 5°.

	MAD [mm]
	$L_1{L}_2$				$L_1$-only
	no corr.	$\mathsf{\Delta }$ corrected			no corr.	$\mathsf{\Delta }$ corrected
		0.1${}^{\circ }$	1${}^{\circ }$	5${}^{\circ }$		0.1${}^{\circ }$	1${}^{\circ }$	5${}^{\circ }$
LEIAR25.R3 LEIT	1.9	±0.0	±0.0	±0.0	2.2	±0.0	±0.0	±0.0
TRM55971.00 NONE	2.2	−0.3	−0.1	−0.1	2.7	−0.6	−0.6	−0.6
Trimble GA530	2.2	−0.1	−0.1	−0.1	2.7	−0.4	−0.4	−0.4
Trimble AV28(rectangular bracket)	4.2	−0.9	−0.9	−0.7	4.6	−0.7	−0.7	−0.7
Trimble AV28(circular plane)	2.7	−0.6	−0.6	−0.6	2.4	−0.1	±0.0	±0.0
U-blox ANN-MB-00(rectangular bracket)	4.7	−1.2	−1.2	−1.2	4.7	−0.9	−0.9	−0.9
U-blox ANN-MB-00(circular plane)	3.0	−0.3	−0.3	−0.3	3.0	−0.2	−0.2	−0.2