Radio

My local radio station started playing Christmas music a couple weeks ago, meaning almost the beginning of November! The like to get us into the Christmas spirit early!

one of our radio stations has been playing Christmas music since before Halloween but usually the day after Thanksgiving to get everyone in the shopping mood.

Does the FM radio works similar to a TV? I mean the way it transmits signals. Do they have the same signals that they receive?

I am just a bit curious here. My Nokia 5310 XM has FM radio. I am just wondering If I can turn my cellphone into a TV by downloading some kind of java application that receives signals just like the built in FM radio.

TV waves are much more complex than radio waves,although they can use the same frequency. The entire FM radio band is actually located between TV channels 6 and 7! But it’s not possible to do what you suggest. As far as I know,cellphones that play video do so by decoding digital formats,like MPEG,from the Internet. However, technology is coming that will enable mobile TV reception since transmission went digital last year. Chrysler has a setup like this coming out in some of it’s minivans.

How does a radio filter out waves of different frequencies?
With all the different frequencies of waves in the air, how does the sound out of a radio come out clear?What do I need to make one?

dear radio does not filter any waves!! let me explain..
Radio has a demodulator in it. it is a PLL. now the demodulator ics like MM74HC4046 are connected in a standard circuit. when you tune the radio for a frequency, which is actually changing the resistor values for the oscillator, you demodulate the frequencies one by one. supose your range is from 300 KHz to 10 MHZ then as you turn the knob, and your circuit has range 300KHz – 12 MHZ thn your starting freq is 300KHz. then as you turn the knob you increase or decrease the resistance and start tuning the circuit. then your first station is at 598khz. at that freq u hear the channel. then as you turn along it goes higher. at 3.9MHZ you listen to different channel. so thats no problem. also the PLL is there which gets locked at a frequency and so there is a conitnuous demodulation at this frequency. I’ve already told you one ic and there are many others. also another is 7046.
if you want ot make one then search FM demodulators by 4046 and use the MM74HC4046. it gives higher selection from short wave, medium wave and FM also.

I was going to buy a 40 channel radio but I decided not to because I didn’t know if you could switch the frequency or if they are built into the system already.
I would like a radio under $50…
Any Ideas?

listen radio online that’s cheaper

What was the name of the radio series Paul McCartney hosted in the 1990s on the Westwood One radio stations? I’d love to hear it. Does anyone know if it can be bought or downloaded? Thanks!

Oobu Joobu. I think you can buy it on Amazon.

My cars antena broke (the kind that goes up when you turn the radio on). Replaced it but when I turn the radio on and the antena comes up I get service but I’m unable to select and hold a station. I get every station in range and all at once. Just curious why that is.

It is possible that there is a tuning capacitor at the back of your radio that needs to be adjusted to match the antenna to the radio input circuitry. If this match is not done, you may be picking up signals that are spurious. Check either your car’s manual or the instruction book that came with your radio to find out if there is a tuning control like this on your set.

I’ve been doing some work on the cold war and have found small snip-its of the english (and for Radio Berlin, German) versions of these stations from the period – is anyone aware of a site where you can access these or any other cold war radio recordings (ie: Radio Prague, Bucharest..)
wow those links are very useful – my German isn’t excellent but I can’t seem to find anything on RBI on the archives website?

http://www.simonmason.karoo.net/page467.htm

http://www.omen.com/rfm.html

http://www.dra.de/online/index.html
(This is the Offical Archive of Radio Berlin) They have a installer program to translate

http://www.tudou.com/programs/view/3ZynKqxumBE/
Last broadcast of Radio Berlin

http://english.ruvr.ru/search.html?page=15&sort=rank&q=archive
Radio Moscow site above, but no archive.

You know how you see the police talk into the radios they have clipped on to their belt or that sits in their car? Is that a CB or a Ham Radio? Or is it something else? I would appreciate it if you could answer if you have the law enforcement experience or are related to somebody who is law enforcement.

My county dispatch recently switched to 800Mhz. Other places I have worked transmitted on 400Mhz and although it’s a dinosaur by comparison, 150Mhz. These are all FM frequencies.

i have a 2004 malibu and my radio seems to be broken because it keeps saying check disc. the motor that ejects the disc keeps running and kills my battery. i have checked both fuse boxes but i don’t know what the radio fuse is labelled. any help is appreciated.

The radio fuse is marked "Radio" and is a 10 amp fuse located in the Body Control Module which is on the passenger side front of the center console, where the passengers left foot would rest. The trim panel pulls off, and the BCM is behind it.

I just put in a new radio. I have never had a problem with my ground. When I plug in my Ipod to the auxiliary plug there is no whistling. But when I plug in my Sirius radio into it there is whistling. Would a ground loop isolator fix the problem?

Most AUX plugs sound bad anyways.
Yea, check the ground.