Table 1: Template radio sources; Col. 1: source index; Col. 2: source name; Col. 3: reference for flux measurement; Col. 4: reference flux at 1380 MHz; Col. 5: reference flux at 1420 MHz; Col. 6: object type from Veron et al. (1972) or Kuhr et al. (1981).

	Name	Ref.	1380 MHz	1410 MHz	Object type
1	0023-26	Kuhr et al. (1981)	8.84	8.71
2	0134+32 3C 48	Baars et al. (1977)	16.12	15.85	quasi-stellar source
3	0237-23	Kuhr et al. (1981)	6.58	6.55	quasi-stellar source
4	0316+16 CTA 21	Kuhr et al. (1981)	8.18	8.09	"empty field''
5	0356+10 3C 98	Kuhr et al. (1981)	12.00	11.82	galaxy
6	0433+29 3C 123	Baars et al. (1977)	49.23	48.41	galaxy
7	0710+11 3C 175	Witzel et al. (1970)	2.59	2.543	quasi-stellar source
8	0809+48 3C 196	Witzel et al. (1970)	14.32	14.08	quasi-stellar source
9	0915-11 3C 218	Baars et al. (1977)	43.62	42.78	galaxy
10	1005+07 3C 237	Kuhr et al. (1981)	6.86	6.731	"empty field''
11	1040+12 3C 245	Kuhr et al. (1981)	3.27	3.23	quasi-stellar source
12	1127-14	Gardner et al. (1975)	6.78	6.76	quasi-stellar source
13	1151-34	Kuhr et al. (1981)	6.68	6.04	quasi-stellar source
14	1245-19	Kuhr et al. (1981)	5.60	5.54
15	1328+30 3C 286	Baars et al. (1977)	14.94	14.78	quasi-stellar source
16	1409+52 3C 295	Baars et al. (1977)	22.60	22.20	galaxy
17	1425-01 3C 300.1	Witzel et al. (1970)	2.93	2.89	"empty field''
18	1514+07 3C 317	Witzel et al. (1970)	5.50	5.38	galaxy
19	1602-28	Gardner et al. (1975)	2.85	2.77
20	1641+39 3C 345	Witzel et al. (1970)	6.80	6.77	quasi-stellar source
21	2117+60 3C 430	Witzel et al. (1970)	7.56	7.44	galaxy
22	2203-18	Gardner et al. (1975)	6.74	6.68	quasi-stellar source
23	2314+03 3C 459	Kuhr et al. (1981)	4.64	4.54	galaxy