Hobby Electronics Basics ELF radio needs more watts than MW radio?

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Subject Author Date
ELF radio needs more watts than MW radio? Green Xenon [Radium] 07-24-08
Posted by Green Xenon [Radium] on July 24, 2008, 8:31 pm
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Hi:

I remember reading somewhere than ELF [Extremely Low Frequency] radio
transmission is inefficient because it requires to much power.

If that is the case, wouldn't MW [Medium Wave] radio transmission
require even more power?

MW and ELF are forms of electromagnetic radiation in the RF spectrum.

An photon [or electromagnetic wave] of a higher-frequency has more
energy than a photon of a lower-frequency.

Let's say there are there are two radio transmitters, one emits 2 GHz
waves while the other emits 2 kHz waves. If the two radio transmitters
use the same modulation scheme [AM/FM, etc.] and emit the same amount
of photons-per-second-per-square-meter, the 2 GHz transmitter will be
using more watts than the 2 kHz transmitter -- because a 2 GHz photon
requires more power to generate than a 2 kHZ photon. Right?

So how would transmitting a lower-frequency radio wave require more
power than transmitting a higher-frequency radio wave?


Thanks,

Radium

Posted by Jamie on July 24, 2008, 10:03 pm
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Green Xenon [Radium] wrote:

> Hi:
>
> I remember reading somewhere than ELF [Extremely Low Frequency] radio
> transmission is inefficient because it requires to much power.
>
> If that is the case, wouldn't MW [Medium Wave] radio transmission
> require even more power?
>
> MW and ELF are forms of electromagnetic radiation in the RF spectrum.
>
> An photon [or electromagnetic wave] of a higher-frequency has more
> energy than a photon of a lower-frequency.
>
> Let's say there are there are two radio transmitters, one emits 2 GHz
> waves while the other emits 2 kHz waves. If the two radio transmitters
> use the same modulation scheme [AM/FM, etc.] and emit the same amount
> of photons-per-second-per-square-meter, the 2 GHz transmitter will be
> using more watts than the 2 kHz transmitter -- because a 2 GHz photon
> requires more power to generate than a 2 kHZ photon. Right?
>
> So how would transmitting a lower-frequency radio wave require more
> power than transmitting a higher-frequency radio wave?
>
>
> Thanks,
>
> Radium
I know this is the BASIC channel how ever, All I can say is WOW!



--
"I'd rather have a bottle in front of me than a frontal lobotomy"

"Daily Thought:

SOME PEOPLE ARE LIKE SLINKIES. NOT REALLY GOOD FOR ANYTHING BUT
THEY BRING A SMILE TO YOUR FACE WHEN PUSHED DOWN THE STAIRS.
http://webpages.charter.net/jamie_5"


Posted by Sjouke Burry on July 24, 2008, 10:19 pm
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Jamie wrote:
> Green Xenon [Radium] wrote:
>
>> Hi:
>>
>> I remember reading somewhere than ELF [Extremely Low Frequency] radio
>> transmission is inefficient because it requires to much power.
>>
>> If that is the case, wouldn't MW [Medium Wave] radio transmission
>> require even more power?
>>
>> MW and ELF are forms of electromagnetic radiation in the RF spectrum.
>>
>> An photon [or electromagnetic wave] of a higher-frequency has more
>> energy than a photon of a lower-frequency.
>>
>> Let's say there are there are two radio transmitters, one emits 2 GHz
>> waves while the other emits 2 kHz waves. If the two radio transmitters
>> use the same modulation scheme [AM/FM, etc.] and emit the same amount
>> of photons-per-second-per-square-meter, the 2 GHz transmitter will be
>> using more watts than the 2 kHz transmitter -- because a 2 GHz photon
>> requires more power to generate than a 2 kHZ photon. Right?
>>
>> So how would transmitting a lower-frequency radio wave require more
>> power than transmitting a higher-frequency radio wave?
>>
>>
>> Thanks,
>>
>> Radium
> I know this is the BASIC channel how ever, All I can say is WOW!
>
>
>
What do you expect from radium trolling?

Posted by Eric Gisse on July 24, 2008, 10:24 pm
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wrote:
[snip]

This kid suffers a terminal case of "doesn't know what he is talking
about".

Posted by on July 24, 2008, 10:35 pm
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> Hi:

> I remember reading somewhere than ELF [Extremely Low Frequency] radio
> transmission is inefficient because it requires to much power.

Then your memory isn't worth a crap or what you read was wrong.

<snip crap>

--
Jim Pennino

Remove .spam.sux to reply.

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