AN4110

Receiver parameters

Doc ID 023182 Rev 1

13/18

Figure 11.

RX blocking vs. CW interferer offset with 1% BER, 1.2 kbps data rate

Figure 12.

RX blocking vs. CW interferer offset with 1% BER, 500 kbps data rate

3.3

Receiver spurious radiation

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

equipment and antenna.

A spectrum analyzer is used as external receiver. The measurement is performed setting

the SPIRIT1 with modulation and checking receiver spurious emissions up to 6 GHz as

described in the ETSI [2] subclause 8.6.

The measurement is split into two figures. In Figure 13 the unwanted spurious emission for

frequency below 1 GHz is shown. The measurement is performed setting the instrument

with a resolution bandwidth of 100 kHz, as requested in the ETSI [2]. In Figure 14 the

spurious radiations from the receiver for a frequency from 1 GHz to 6 GHz is shown. The