c) Figure 1 below shows the attenuation characteristic for radio wave propagation up to the HF band. During the night, a system using a 1 kHz carrier transmits a signal at a power of 30.XY dBW. Calculate i) ii) Attenuation,d8/km the transmitted power in Watts? the received power 1000 km from the transmitter. 6 10 -(elf) Wavelength, m 105 Night 10⁰ (vi) Day (18) 10³ (mfl- -(hf)- Frequency, kHz (Courtesy D. Llanwyn Jones) Figure 1. Attenuation characteristic for LF radio bands

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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c) Figure 1 below shows the attenuation characteristic for radio
wave propagation up to the HF band. During the night, a
system using a 1 kHz carrier transmits a signal at a power of
30.XY dBW.
Calculate
i)
ii)
the transmitted power in Watts?
the received power 1000 km from the transmitter.
Attenuation,d8/km
6
-(elf)
Night
IA
Wavelength, m
105
10
10⁰
(vi)
Day
(18)
10³
(mfl-
-(hf)-
Frequency, kHz
(Courtesy D. Lionwyn Jones)
Figure 1. Attenuation characteristic for LF radio bands
Transcribed Image Text:c) Figure 1 below shows the attenuation characteristic for radio wave propagation up to the HF band. During the night, a system using a 1 kHz carrier transmits a signal at a power of 30.XY dBW. Calculate i) ii) the transmitted power in Watts? the received power 1000 km from the transmitter. Attenuation,d8/km 6 -(elf) Night IA Wavelength, m 105 10 10⁰ (vi) Day (18) 10³ (mfl- -(hf)- Frequency, kHz (Courtesy D. Lionwyn Jones) Figure 1. Attenuation characteristic for LF radio bands
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