Guys,
Just a bucket of cold water for a moment.
No doubt Apple makes a nice product. I just diden't want to afford it. Also my internet connetion via the Army won't allow 'music down loads'.
I use two 40G Nomads here for the trooper radio station here at Camp Scania Iraq. In time that will upgrade to a real PC but for the next few weeks, this is it.
I change players every ten days or so. The music list in the 'off line' player get's updated to keep the mix fresh.
Each player averages about 6k titles. A mix of music, movie sound track clips, Old Time Radio shows, comidy bits, trooper donated stuff, KBR country, base annoucements, and some Scania Live recordings (locally produced).
It supports collections of songs i call 'mixes'. We have mixes for the Army, Air Force, Navy, Love, Sex, God, Dining hall, Mechanical, Medical, and FHO.
FHO is an idea I stole from WNEW FM in New York. It was a show for some amazing music that just sounds good on high preformance head phones. So "For Headphones Only" is a good thing. That pushes all the system preformance to the limit. The audio chain, and the RF system.
So far, very few beefs. Mostly from the Iraqi's outside the wall, they want me to run more power. Base managment nixed that since we use this to announce chappel events, and it would be bad to tell any OpFor (bad guys) just when a bunch of troopers are going to be in one place at one time. The station stays at one watt, and the antenna stays at the same location.
These players run on external power and run 24x7. They do this rather well. Even for a one watt radio station.
As for the battery question, the Nomad battery is a drop in and simple to change if and when it goes bad. I have not had them long enough to know when that will happen.
For the most part they run on external power.
One of the above guys mentioned an FM modulator. This radio station is a large edition of what I made for my self back home.
I had a 6mW FM Stereo Transmitter in my truck. That would cover about two blocks. Local broadcast was so comercial back home, I would hear the same song at the same time each morning. That got old fast. I built for my self a little station that played songs I wanted to hear. So while driving, while at work, and at home this thing would crank out the tunes all day and night. The load on a car batter was trivial.
Here is a link for some photos.
http://photos.yahoo.com/ka2zev
The first is the radio station, MP3 player, FM Exciter, Amplifier.
The second is the antenna on our trailer.
The third is a BBQ made out of armor plate. How many can grill a steak while geting shot at.
The fourth is a cute trooper with a macheine gun. She's spoken for.
The fifth is your truly, a thermite grenade, and Sargent C.
You want light and heat, this is the gizmo for you!
Hope all is well.
Jack Crow aka Radio Mike
WTFO FM 105.9
Stereo Scania