AN4117

Receiver parameters

Doc ID 023222 Rev 1

17/22

Figure 18.

RX blocking vs. CW interferer offset with 1% BER, 100 kHz channel

Figure 19.

RX blocking vs. CW interferer offset with 1% BER, 500 kHz channel

3.3

Receiver spurious radiation

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

equipment.

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

setting the SPIRIT1 with modulation and checking receiver spurious emissions up to 4 GHz

as described in ETSI [2] subclause 8.6.

The measurement is split into two figures: in Figure 20 the spurious radiation for frequency

below 1 GHz is shown. The measurement is performed setting the instrument in max. hold

with a resolution bandwidth of 100 kHz, as requested in ETSI [2]. In Figure 21 the spurious

radiation for frequencies from 1 GHz to 4 GHz is shown. The measurement is performed