0
Both are digital modulation types for radio, transmitting data as two states usually. Amplitude shift keying varies the amplitude of the carrier, and often is used to switch the carrier on or off for the two states. Frequency shift keying varies the frequency of the carrier, so it is one of two distinct frequencies. These can be seen as digital versions of AM and FM.
With amplitude shift keying the detector needs to distinguish between the two levels, which can vary widely due to propagation. Some sort of gain control or automatic threshold adjustment is needed, and noise bursts can be misinterpreted as data. This method tends to be simpler to implement, but less reliable than other modulation types (more prone to interference).
Frequency shift keying is more or less constant amplitude so the interference (which is mostly AM in nature) is better suppressed. Frequency stability can be an issue with narrow band UHF radios.
---
ASK
Audio Shift Keying - Digital signals are sent by modulating a carrier using an two or more tone audio tone. This is generally used for single sideband transmissions, but since it is an audio signal it can be used on FM/PM/AM.
FSK
Frequency Shift keying - Digital signals are sent by changing the frequency of an amplitude UN-modulated signal and decoding it using a side-tone receiver to reproduce the tones. FSK can be sent by any mode which has a carrier.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What are modulation techniques in satellite communication?
frequency modulation, preferably.
Compear fsk and psk?
fsk and psk
What is fsk in communication?
fsk is nothing but frequency shift keying which is used in low speed modems.....
What does FSK wrote TSSB?
FSK, or Frequency Shift Keying, is a modulation technique that involves shifting the frequency of a carrier signal to transmit binary data. TSSB may refer to "The Stock Swing Band," which could be a musical group or band specializing in swing music. It is unclear what connection or context there is between FSK and TSSB in this case.
What is block diagram of frequency shift keying modulation?
Block digram of fsk is the representation of fsk modulation
What is FSK in telecommunication?
FSK stands for Frequency Shift Keying. It allows for voice and data to be digitized and transferred over analog lines. There is a maximum transfer rate of FSK data at 1.6 Mbps.
What is the difference between Copernicus and Kepler's hypothesis?
i ask you that
What is difference between keyword and command?
ask your ma
What is the difference between greatness and mediocrity?
The difference between greatness and mediocrity lies not in the answer we give but in the questions we dare to ask!
What is the difference between rights and privilege?
You do not have to ask to exercise a Right. You do have to ask to exercise a privilege.
What is the difference between sailing and aviation?
if you have to ask this, then you don't deserve an answer
What is the difference between a plan and an elevation?
if i know did ask this question with you
