I'm studying for my ham test and have a question that isn't clearly answered in my study guide.
On 2m, it seems channels are spaced 15Khz or 20 Khz or 30KHz apart, and (I think) channels have a bandwidth of 16KHz. Wouldn't that means the channels overlap on 15KHz channel spacing?
Next, I read somewhere that there is 6KHz guard band between channels. But mathematically that doesn't fit either 15KHz or 20KHz spacing.
Can someone clarify this for me? Are there supposed to be 6KHz guard bands between channels? And the above assume 16KHz channel bandwidth (but I read somewhere online about narrow and wide band channels, so I don't know if that is a factor)
I'm in Canada in case that affects the answer.