Radios » radios

How can I easily power multiple car radios in my house?

admin — Sun, 05 Feb 2012 00:06:07 +0000

I have about 125 car radios that I need to power up in my house. Most do not have a wiring harness attached. How can I easily power each up? I want to take pics of them powered up so I can sell them. I don’t need speakers or anything just power. How can I easily power them if they don’t have harnesses?

You need a 12 volt source and some small gauge wire.
You can use a car battery or a 12 volt power adapter from something around the house.
A battery charger or something… I would use the small low current source to test it. The small charger/adapter is less likely to do damage if you get the connection incorrect the first time.
Getting power to the wrong pin is bad no matter how little current, but lower is better. A car batter at 650 + amps will pop it quick for sure if wrong…
Hopefully they are marked.

It depends on the connector type, but just poke the wires in the connector. If it has pins then skin a little extra coating off the wire and fold it up to make it thicker and balled a bit. Then poke it on the pin.
maybe wrap a little piece of tape or paper around the wire so it doesn’t short to the other pins.
For the small female end connector just stick a pin in it and wrap the wire to the pin.

You do know which is the power pins for each radio right?
If not, You’ll have to look up the connector diagrams online…

I don’t know if all radios are case grounded. If they are then connect the ground to that and poke the hotwire in the connector. Beware though, it might make it into a paper weight. You could pull the case apart and look at the board to see what pins are what…

I like to make life difficult..sorry…

That’s all I have to offer is poke away..

have fun

How do you activate the radios in Nazi zombies?

admin — Mon, 09 Jan 2012 07:33:14 +0000

Me and my friend would like to know how to activate the radios on Der Riese for the PS3.

http://www.youtube.com/watch?v=fvPDUxB7vBg copy the link into the browser this will give u all easter eggs including radios”creepy”:S HOPE THIS HELPS

P.S im mexican so tell me how’s my english and i wanna have more friends on ps3 to play any cod or any other game(CoD better so gimme ur gamertag and ill add u i was ranked nuber 1 on wii leaderboards lolz, its kinda da same but im good at ps3 2.

What kind of insulated wire should I use to hard wire old radios?

admin — Thu, 15 Dec 2011 04:05:17 +0000

I have a few old radios that have some insulation off of them. I don’t want to fire them up this way. Please, I need help.

If function is the only concern, all you have to do is ensure that you replace any wires with at least the same gauge or higher. That covers the current rating, which is a function of the conductor cross-section. Hardware store/home Depot wire is all 600V rated (except for the low-voltage doorbell wire, I think that’s 300V-rated). The voltage rating is a function of the insulation.

If you’re restoring and want identical wire, search around the web for antique radio repair/hardware sources, I think you can still find places that sell the more common vacuum tubes and cloth-covered wire.

What do you call the radios in cars to talk to others who have the same radio?

admin — Tue, 29 Nov 2011 10:00:10 +0000

I’m talking about those devices that you see some people have in their cars where they can talk to each other over a frequency similar to cops with their radios and truckers.

Citizens Band radio

"CB radio"

At what speed do signals travel between the two way radios?

admin — Thu, 15 Sep 2011 06:36:08 +0000

Two members of staff are using two way radios. Each radio consists of a transmitter and a receiver. At what speed do signals travel between the two way radios?

they travel at the speed of light.

radio waves are one part of the electromagnetic spectrum.
All electromagnetic radiation travels at the speed of light

How do waves not get mixed up when using radios?

admin — Sat, 20 Aug 2011 23:08:05 +0000

when people or governments use radios to communicate how can they do it without someone just tuning to the frequency and just listening to everything they are saying? how come 2 people cant be broadcasting on the same frequency? there cant be that many frequencies where everyone can have their own right?

Radio waves are electromagnetic waves which means they are just like visible light except with longer wave lengths.

So imagine that I am sending you a message in Morse code using a green flashlight. If at the same time there are other flashlights going off, as long as they are in other colors, it wouldn’t scramble that message. You can easily filter other colors lights out, leaving only the green color light and obtain the message. This is because green light has a different frequency then say red or blue.

AM radio basically works the same way. Each station is preset at a specific frequency and the message is delivered by variations in the amplitude just as if you were to modulate the brightness of a flashlight. That is why it is called Amplitude Modulation (AM).

If two people were to use the same frequency then you could have interference. This is why the FCC sets strict guideline and rules on who owns what frequency. It allocates frequencies usage between radio stations or devices used for different purposes far enough apart to minimize interference.

Also when two transmitters are far enough apart then the same frequency can then be reused without having to worry about interference.

A good example of this is mobile phone towers. Each tower represents an area similar to a cell in a honey comb. Each tower is able to manage several dozen channels/frequencies within the cell. Adjacent "cells" do not use the same frequencies to avoid interference. But a cell that is a few miles away can then reuse the same frequency. When you talk on a mobile phone, the phone and the towers are constantly negotiating in the background to figure out which channel to communicate on. So as you are driving down the freeway your phone automatically switches from one channel to another to communicate with various towers without you noticing.

Early mobile phone designers came up with this concept.. that is why mobile phones are also called "cell phones".

Can most radios fit in the place of stock radios in cars?

admin — Sun, 03 Jul 2011 21:09:14 +0000

I found this really neat radio and wasn’t sure if it would fit in different model cars. Do most radios fit?

Yeah… most radios will generally fit any car. Usually, you have to buy an installation kit made to fit your particular car and the size of the radio you want to install. The kit will sometimes include adapters that allow plug-in installation of the wiring with no cutting and splicing required.

http://www.installer.com/kits/

What will happen to car radios later in the year with the digital change over happens?

admin — Tue, 05 Apr 2011 11:29:06 +0000

The analogue signal will be switched off in my area in the Autumn and over to the digital signal, but what will happen to car radios and also the radios at work places?? Will they become redundant and will all car radios need to be replaced?? If this is the case, are there any funds available to assist in the replacing of any analogue radios we all may have??

The digital switchover for this year affects terrestrial television signals only. It will not affect radio signals.
There is a provisional 2015 date for the digital radio switchover, but this will be partial – essentially all the national station, plus BBC local stations, will switch to digital only, freeing up frequencies for more local radio services on FM. The date has not yet been confirmed, and one of the reasons it may be delayed is low availability of DAB car radios.

DAB converters already exist for car radios, such as the Pure Highway (http://www.pure.com/products/product.asp?Product=VL-60905 ), which will enable you to listen to digital only stations on your existing radio.

Do analogue radios work in Tokyo or do you need a digital radio there?

admin — Wed, 30 Mar 2011 12:13:23 +0000

Have a son in Tokyo without a battery operated radio. As they’ve been having problems with electricity supply, I was thinking of sending him a small battery operated analogue radio from Australia. I believe radios are difficult to obtain in Tokyo because of panic buying of emergency supplies. Would an analogue radio work in Japan?

It will work. The only thing you have to worry about with analogue is picking up digital Ham radio qso’s but I am sure this is not the case. That being said, analogue will still pick up any intended station.

The FM Band in Japan is 76 to 108 MHz, any important broadcasts will be received in the 90 to 108 MHz range.

Episode of a TV show where kids relay an emergency message using ham or short wave radios?

admin — Wed, 16 Mar 2011 10:05:09 +0000

Maybe ham and short wave radios are the same thing. I don’t know.

Anyway, it’s not the Father Knows Best episode where Bud and his whole family hear a distress call and then call the Coast Guard, but another show where there’s some kind of emergency and several kids pass a message around the world to get someone help.

I’m pretty sure it was a TV show and not a movie, but I’m not sure. I tried Googling it, but I didn’t find the answer. Does anyone know what I’m thinking of?

Have a look at this page:

http://www.ac6v.com/popculture.html

Movies are listed first, you have to scroll down a bit to get to TV shows.