DocID025507 Rev 1

11/17

AN4392

Transmitter parameter

17

Figure 7. Tx spurious emission in range from 2483 to 2496.5 MHz

Figure 8. Tx spurious emission in range greater than 2496.5 MHz

4.4

Maximum frequency bandwidth

For spread spectrum systems, the spreading bandwidth shall be 500 kHz or more.

The BlueNRG shows a value equal to 817.6 kHz.

AM18312v1

-60

-50

-40

-30

-20

-10

0

2483

2488

2493

MHz

AM18313v1

-60

-50

-40

-30

-20

-10

0

2496.5

4496.5

6496.5

8496.5

10496.5

12496.5

MHz