Table 4. Yebes 40m Estimated efficiencies from different contributions at four observing frequencies.

Component	32 GHz	50 GHz	72 GHz	90 GHz
ηm1	0.95	0.87	0.75	0.65
ηm2	0.99	0.97	0.94	0.91
ηmn	1.00	0.97	0.97	0.95
ηohm	1.00	1.00	1.00	1.00
ηblock	0.92	0.92	0.92	0.92
ηmbr	0.98	0.98	0.97	0.97
η i	0.80	0.80	0.82	0.82
Total η A (a)	0.67	0.59	0.50	0.41

Notes.

^(a)Assuming η _err = 1.