When I was a child, I spoke as a child.
When I became a man, I put aside my childish ways.
When I was a little kid and mom and dad was paying for everything I often spoke - I want, I want, I want.
When I had to physically pick up the bill - my ways changed.
It's nice to say - I want, I want, I want.
But most times those are the same people who doesn't have a pot to pee in or a window to throw it out of.
I bought a Yaesu 8900 and other then it's little idiosyncrasies - it is a very good radio.
It's not dual band, it is a Quad Band radio.
Yes it only listens to two channels at the same time, but it has the capabilities of being able to do more with a few little modifications.
Hence the modifications voids the warranty.
I would suggest that if you want a radio like that for you to call Ham Radio Outlet and put in your order.
I highly doubt if someone is just going to give you a radio like that.
I love it when someone comes to my house and says that they want something and when I suggest that they buy a used one for X amount of dollars that they balk and they make the remark that if they have to spend that amount of money - they will just go out and buy a brand new one.
Usually that is nothing but them talking big - because they never seem to have enough money to pay for what they already have and the only way they could afford something like that is if they were to put it on their credit card - which is usually near it's credit limit to begin with.
So the answer is that most HF radios made today works with a 12 volt power supply and if you wish to have a mobile unit that you have to spend gobs of money on a power supply that will support those types of communications.
When I competed in car audio competitions I used a 160 amp alternator - which was independent of the automobile charging system and two additional Ultima Red Top 1000 CCA batteries and very expensive wires and terminals to connect it all together.
With a power supply like that - it would be able to over come the limitations of the vehicles antenna with additional amplification and all the bells and whistles that we normally associate with a home ham shack such as a tuner and other peripheral devices.
At some point the system will outgrow the vehicle and you will be forced to drive a larger vehicle or get rid of some of what you accumulate.
In my case, I have boxes of power amplifiers - Orion HCCA and DVC 12 speakers - enough to build a sound system loud enough to use as a PA system for PNC park in Pittsburgh.
You would think that the Grateful Dead came to town.
Old School SPL Competition Vehicles