Electronic Devices - Communications - Discussion
Discussion Forum : Communications - General Questions (Q.No. 12)
12.
If a 1 MHz carrier is amplitude modulated with a 5 kHz audio signal, the upper-side frequency is ________ kHz.
Discussion:
9 comments Page 1 of 1.
Aniket.v said:
1 decade ago
M(mega) = Power of 10 is 6.
M = 1 MHZ.
i.e M = 1 k*k hz.
But k = 1000.
So for one k is replace by 1000.
:1 M = 1000 k are same.
M = 1 MHZ.
i.e M = 1 k*k hz.
But k = 1000.
So for one k is replace by 1000.
:1 M = 1000 k are same.
Rajitha said:
1 decade ago
How the upper band is 1000khz?
Prakash.p said:
1 decade ago
Upper sideband fq = Fm+Fc.
fq = 1MHz+5KHz.
fq = 10000+5000.
fq = 15000GHz.
How can you answer the value for 1005 is KHz,
Because the value of 1 MHz is 10000 and 1 KHz is1000, how can a is answer?
fq = 1MHz+5KHz.
fq = 10000+5000.
fq = 15000GHz.
How can you answer the value for 1005 is KHz,
Because the value of 1 MHz is 10000 and 1 KHz is1000, how can a is answer?
Sahidur Islam Haldar said:
1 decade ago
Here, Fm = 5KHZ.
Upper side band frequency = Fm+Fc = 1MHZ+5KHZ = 1005KHZ.
Upper side band frequency = Fm+Fc = 1MHZ+5KHZ = 1005KHZ.
(1)
Dev said:
1 decade ago
Carrier frequency = 1MHz and Audio signal = 5KHz.
Upper Band = 1000 KHz + 5KHz =1005KHz.
Upper Band = 1000 KHz + 5KHz =1005KHz.
Yuy said:
1 decade ago
Carrier frequency = 1MHz.
Upper Band = 1000kh + 5KHz =1005KHz.
Upper Band = 1000kh + 5KHz =1005KHz.
Monica.v said:
1 decade ago
Upper side frequency=Carrier frequency+ Audio signal
= 1*10^6+ 5*10^3
=10^3[1000+5]
=1005 KHz.
= 1*10^6+ 5*10^3
=10^3[1000+5]
=1005 KHz.
Manisha said:
1 decade ago
Carrier frequency = 1MHz.
Upper Band = 1000kh + 5KHz =1005KHz.
Lower abnd = 1000KHz - 5KHz =995KHz.
Upper Band = 1000kh + 5KHz =1005KHz.
Lower abnd = 1000KHz - 5KHz =995KHz.
Rajshree Ghorude said:
1 decade ago
Here it is given that fm=5khz & fc=1Mhz
upper side band frequency= fm+fc=5Khz+1Mhz=1005Khz
upper side band frequency= fm+fc=5Khz+1Mhz=1005Khz
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