Hey man, there is nothing wrong with being ignorant. Ignorant means that you don't know certain things. Line up everybody in the world, and you won't find ANYBODY that knows everything.
Run away from the person that tells you they do know everything!
God is the only one that I know of - that honestly knows everything - that I would trust.
You go and ask all the questions you want, and everybody here will do the best they can to answering!
What good would this forum be if we all knew everything?
The A thru H knob is for accessing different radio frequencies. You got it. This Styker 490 is a 10 meter radio that you have, but many 10 meter radios can be set up to access far more frequencies than just 10 meters. Like yours can - too. Some of them can also do 11 meters (the CB band) and even include some or all of the 12 meter band. The only problem that you may have with your radio, is not having a frequency counter to know what channel'frequency you are using or listening to. SSB isn't that important to everybody, and having FM is pretty usable too.
For example the RCI-2950DX can do almost all of 10-11-12 meters as well. (at least a chunk of it)
Every time that you change the letter on your Stryker, it changes a different band below or above the CB band. Chances are, the CB band is somewhere in the middle of these letter assignments; but I am unfamiliar with your radio and can't say for sure. People prefer using these channels so that they can carry on a private conversation with little or no interference from other operators. Additionally, the FM feature of your radio makes noise less of an issue. Between those extra channels, the built-in 100 watts, and the FM mode feature makes it easy to talk privately and clearly.
Welcome to WWRF...
