Receiver parameter

AN4148

10/13

Doc ID 023517 Rev 1

4

Receiver parameter

ARIB compliance in ARIB STD-T93 [

2] in the 312 to 315.25 MHz band only pertains to

emissions and harmonics. There are no receiver sensitivity, selectivity or blocking

measurements to comply with ARIB STD-T93 standard [

2].

4.1

Conducted spurious component at receiver

Spurious radiation from the receiver are components at any frequency, radiated by the

equipment. The spurious emission strength at the antenna input must be less than the

values in

Table 2.

The measurement results are shown in

Figure 6 and 7. All standard requirements are met

from the SPIRIT1 in receiver mode.

Figure 6.

TX spurious emission below 1 GHz

Figure 7.

TX spurious emission above 1 GHz

AM13278v1

-70

-65

-60

-55

-50

-45

-40

0.0E+00

1.0E+08

2.0E+083.0E+08

4.0E+08

5.0E+08

6.0E+08

7.0E+088.0E+08

9.0E+08

1.0E+09

Frequency [Hz]

Output power

ARIB mask

AM13279v1

-70

-65

-60

-55

-50

-45

-40

1.0E+09

1.5E+09

2.0E+09

2.5E+09

3.0E+09

3.5E+09

4.0E+09

4.5E+09

5.0E+09

Frequency [Hz]

Output power

ARIB mask