Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

[SOLVED] Questions about carrier frequency in amplitude modulation

Status
Not open for further replies.
S

syeda amna

Full Member level 4
Joined
Jun 1, 2010
Messages
222
Helped
24
Reputation
48
Reaction score
22
Trophy points
1,308
Location
Pakistan
Activity points
2,551
hi
in amplitude modulation carrier frequency is much higher than the modulating/information signal (the signal which is to be transmitted).

what will happen if carrier frequency is equal to modulating signal?

what will happen if carrier frequency is less than modulating signal?
 

Re: amplitude modulation

Hi,
If the carrier frequency is less than or equal to the modulating frequency then there would be requirement of long antennas(of the order of km!) to radiate the signal and one cannot translate different signals to different spectral locations thus disabling the receiver to select the desired signal.Hence, to accomplish ease of radiation and multiplexing, the need for higher carrier frequencies!
 
Re: amplitude modulation

also high frequency means high power come into use thus, longer distances and also to protect your noise from noise , interference , and other problems of low frequency
 
Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top