How do I generate a broadband or wideband carrier?

*lolone*

Generating a carrier on a single frequency is simple, just use an oscillator of a specific frequency and amplify.

But how do I generate a carrier that is 100KHz wide, or even 100MHz wide? The obvious answer is more oscillators, but is there a better way?

berkeman

Welcome to the PF.

I don't think there is such a thing as a "carrier that is 100kHz wide". You can fill out a 100kHz channel with multiple carriers (like in OOFDM), or you can modulate a carrier, but a single carrier is generally at a single frequency.

What is the context of your question? What are you studying?

*lolone*

I don't think there is such a thing as a "carrier that is 100kHz wide".

I understand this.

You can fill out a 100kHz channel with multiple carriers (like in OOFDM), or you can modulate a carrier, but a single carrier is generally at a single frequency.

My question is related to generation and independent control of multiple carriers spanning a given bandwidth (i.e. 100KHz or 100MHz.)

What is the context of your question? What are you studying?

I have been looking at some types of digital signals with large bandwidths (1/4/8MHz, etc). Is this bandwidth composed of independent carriers, or is it the result of interactions due to the modulation scheme employed???

Redbelly98

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lolone	How do I generate a broadband or wideband carrier? Tweet Generating a carrier on a single frequency is simple, just use an oscillator of a specific frequency and amplify. But how do I generate a carrier that is 100KHz wide, or even 100MHz wide? The obvious answer is more oscillators, but is there a better way?

berkeman Mentor	Welcome to the PF. I don't think there is such a thing as a "carrier that is 100kHz wide". You can fill out a 100kHz channel with multiple carriers (like in OOFDM), or you can modulate a carrier, but a single carrier is generally at a single frequency. What is the context of your question? What are you studying?

Redbelly98 Mentor Blog Entries: 10	How do I generate a broadband or wideband carrier? Thread locked pending moderation.