Comments for Radio Frequency

Comment on Could sending radio signals into the outer space be a mistake? by Quadrillian

Quadrillian — Sat, 05 Jun 2010 07:49:59 +0000

Even if there are aliens, and even if they are hostile, then by the time they get here, they can’t do anything to us that we won’t already have done to ourselves.

Cheers!
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Comment on Could sending radio signals into the outer space be a mistake? by lithiumdeuteride

lithiumdeuteride — Sat, 05 Jun 2010 07:20:59 +0000

It is pointless to stop radio broadcasts now. We have already advertised our presence to anyone within hundreds of light years (or will, when the radio signals eventually reach them). I see no reason to shy away from alien contact, anyway. Isolationism is rarely a successful strategy.
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Comment on How are you suppose to remember all the radio codes!? by jhicks4453

jhicks4453 — Sat, 05 Jun 2010 06:54:59 +0000

Hi Razr! You remember them over time. I remember when I first began patrolling, I kept a cheat sheet in my front pocket. As time went on, 10-codes became my second language. It actually develops into what is referred to as "cop speak". Instead of saying "Okay" or "I understand", I find myself saying "10-4". When I’m talking about a wreck I worked, I’ll tell my colleague, "You should’ve seen that 10-50!"

You get used to them.
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Comment on What is the difference between UHF and VHF radio waves? by ianhad

ianhad — Sat, 05 Jun 2010 06:52:59 +0000

Nothing, they are arbitrary divisions of the electro magnetic spectrum. V = Very, U= Ultra.
TV and FM use higher frequencies to keep the range down, ie so the can’t be picked up too far from the transmitter, so you can have more different stations. (One reason, anyway).
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Comment on Could sending radio signals into the outer space be a mistake? by It's That Guy

It's That Guy — Sat, 05 Jun 2010 06:51:59 +0000

First of all, it’s nearly impossible to put out anything in radio waves and not have some of those escape into space. ‘Broadcasting’ is the idea of sending radio waves in all directions. We can’t build a shield around the earth to trap radio waves.

But think about it. Radio waves radiate from a point–that’s one reason they’re called ‘radio’. Their strength decreases with the square of the distance. In other words, if you move double the distance away from the transmitter, you get 1/4 the signal strength. This means that within a few hundred thousand miles the signal is so small as to get lost behind the background radiation.

There are a lot of stories about aliens that come to earth because they’ve seen TV programs or heard radio programs from years ago, and it took that long to reach their home. But this is mostly baloney. If there is intelligent life outside of earth, it would be so far away that our signals couldn’t reach there. The only way they could pick up the signals would be to drive some kind of space ship close to earth, and of course then there would be lots of other ways to tell we were here.

One of the ideas about UFOs, flying saucers, etc., is that if there -is- another planet with intelligent life, it would be so far away we couldn’t even know about it, much less to visit or explore there. If -they- can visit -us- it means that they are way far advanced, so naturally we should be afraid of them. They would be able not only to visit us, but to cloak or disguise themselves so we couldn’t see them, didn’t know they were here. In a case like that, it’s kind of silly to be afraid of them. If they were going to destroy us they would have done it long ago.
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Comment on Where can i find police scanner frequency codes? by Driving Instructor (BRAKE!)

Driving Instructor (BRAKE!) — Sat, 05 Jun 2010 06:49:59 +0000

A great scanner frequency resource: http://www.scannerstuff.com
Have fun!
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Comment on What are the VHF frequencies for pilot communications San Diego 09 red bull air race for scanners? by dumbasspilot

dumbasspilot — Sat, 05 Jun 2010 06:44:59 +0000

122.775
123.150
123.450
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Comment on Using a CB radio to communicate with two way radio, is it possible? by wires

wires — Sat, 05 Jun 2010 06:42:59 +0000

As the others have pointed out, CB's use their own specific channels that you will not find in a two-way radio (but a CB is a two-way radio). Anyway, they are completely different frequencies. Also, the CB is an AM system. A two-way radio is FM. So even if they were the same frequency they couldn't talk to each other.
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Comment on How are you suppose to remember all the radio codes!? by Kenneth C

Kenneth C — Sat, 05 Jun 2010 06:41:59 +0000

The federal government is really pushing for local agencies to stop using ten codes and go to plain english. By policy my agency got rid of them a year ago. But it’s hard for officers and dispatch to break old habits.

Anyways, ten codes are easy. When I was in the academy, I just made flashcards and practiced for a week. After that, I had them down solid. If I have a mental block or someone uses one I am not familiar with, as another person said, I have a cheat sheet.
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Me
Police Officer

Comment on Could sending radio signals into the outer space be a mistake? by Dela

Dela — Sat, 05 Jun 2010 06:23:59 +0000

I heard of a contest in which the a random winner recorded himself with a message to be send to the outer space. I guess people do that just for fun, I doubt aliens have the same technology that we use to get radio signals neither that they are able to understand our language. I find it stupid and meaningless.
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