in an alignment, each area of the radio is tuned to the correct setting.
first the PLL (thing that makes the channels what they are) section is aligned so that it is generating the correct frequencies.
this will make sure that when you are on ch. 19, that when your clarifier is centered, you are exactly on 27.1850mhz.
this really helps when using SSB, because you can tell the other guy, "i just had my radio aligned, it must be your radio". LOL
next is the receiver section.
this is aligned so that each stage of the receiver is operating at peak sensitivity.
very important for DXing.
then the transmitter is aligned.
a good shop would never use the term "peak and tune" to describe this part.
most hack shops only do the transmitter part, do it wrong, and then call it an alignment.LOL
here is a guy who is a member of this forum, that will do exactly what you need and your radio will sound great.
many satisfied customers here.
www.dtbradio.com
later,
LC