Table 2: Candidate GPS sources.
Source ID z $\nu_{\rm peak}$ $\alpha_{\rm below}$ $\alpha_{\rm above}$ $Var_{\Delta S}$ $\nu_{Var_{\Delta S}\max}$ Proposed

B1950 GHz max GHz class

0221+067
HPQ 0.511 ... ... -0.001 3.34 37 f

0306+102 BLO 0.836 21.4 0.28 -0.03 5.36 8 f

0316+413 GAL 0.0172 5.0 0.08 -0.36 8.09 37 f

0420-014 HPQ 0.915 37.0 0.27 -0.73 8.12 90 c

0748+126 LPQ 0.880 37.0 0.11 -1.0 2.03 37 f

0754+100 BLO 0.266 11.3 0.23 -0.30 7.91 37 idb

0823+033 HPQ 0.506 21.6 0.13 -0.05 2.91 4.8 f

0828+493 BLO 0.548 5.4 0.03 -0.02 5.47 8 f

0829+046 BLO 0.18 12.9 0.19 -0.28 6.2 8 idb

0953+254 LPQ 0.712 9.4 0.22 -0.10 3.13 8 f

1148-001 QSO 1.983 ... ... -0.26 2.35 90 f

1308+326 BLO 0.996 13.8 0.22 -0.30 8.25 22 idb

1642+690 HPQ 0.751 ... ... -0.11 5.54 8 f

1730-130 BLO 0.902 ... ... -0.03 4.86 14.5 f

1741-038 HPQ 1.057 ... 0.02 ... 6.63 22 idb

2131-021 BLO 1.285 2.3 ... -0.16 7.85 14.5 f

**Table 2:** Candidate GPS sources.
Source	ID	z	$\nu_{\rm peak}$	$\alpha_{\rm below}$	$\alpha_{\rm above}$	$Var_{\Delta S}$	$\nu_{Var_{\Delta S}\max}$	Proposed
B1950			GHz			max	GHz	class
0221+067	HPQ	0.511	...	...	-0.001	3.34	37	f
0306+102	BLO	0.836	21.4	0.28	-0.03	5.36	8	f
0316+413	GAL	0.0172	5.0	0.08	-0.36	8.09	37	f
0420-014	HPQ	0.915	37.0	0.27	-0.73	8.12	90	c
0748+126	LPQ	0.880	37.0	0.11	-1.0	2.03	37	f
0754+100	BLO	0.266	11.3	0.23	-0.30	7.91	37	idb
0823+033	HPQ	0.506	21.6	0.13	-0.05	2.91	4.8	f
0828+493	BLO	0.548	5.4	0.03	-0.02	5.47	8	f
0829+046	BLO	0.18	12.9	0.19	-0.28	6.2	8	idb
0953+254	LPQ	0.712	9.4	0.22	-0.10	3.13	8	f
1148-001	QSO	1.983	...	...	-0.26	2.35	90	f
1308+326	BLO	0.996	13.8	0.22	-0.30	8.25	22	idb
1642+690	HPQ	0.751	...	...	-0.11	5.54	8	f
1730-130	BLO	0.902	...	...	-0.03	4.86	14.5	f
1741-038	HPQ	1.057	...	0.02	...	6.63	22	idb
2131-021	BLO	1.285	2.3	...	-0.16	7.85	14.5	f

Source LaTeX | All tables | In the text

	1 Introduction
	2 Sample and observations
	3 Source classification
	4 Results
	5 Discussion
	6 Conclusions
	References