Find the frequency, power (both in dBm and in watts), and voltage for each of the signals shown in Figure 1.26. Figure 1.26 11eb7f4e_7e15_179e_afa2_67204bed6f04_SM4978_00 Reference level 30 dBm Vertical: 10 dB/division Center frequency 872 MHz Span: 10 MHz/division 11eb7f4e_7e15_3eaf_afa2_61b6732444ec_SM4978_00 Reference level 18 dBm Vertical: 1 dB/division Center frequency 79 MHz Span: 500 MHz/division 11eb7f4e_7e15_3eb0_afa2_559186f04fd9_SM4978_00 Reference level +12 dBm Vertical: linear Center frequency 270 MHz Span: 5 MHz/division

Electronic Communication Systems 2nd Edition by Roy Blake

النسخة 2الرقم المعياري الدولي: 978-0766826847

النسخة 2الرقم المعياري الدولي: 978-0766826847

تمرين 17

Find the frequency, power (both in dBm and in watts), and voltage for each of the signals shown in Figure 1.26.
Figure 1.26

Reference level 30 dBm
Vertical: 10 dB/division
Center frequency 872 MHz
Span: 10 MHz/division

Reference level 18 dBm
Vertical: 1 dB/division
Center frequency 79 MHz
Span: 500 MHz/division

Reference level +12 dBm
Vertical: linear
Center frequency 270 MHz
Span: 5 MHz/division

التوضيح

موثّق

(a)
From figure 1.26(a) in the text book...