some help R20

[dubir]

Dear All
Please advise how to do some things with the R20:

1. How to determine the scanner to scan only specific range
for example : scan only 40Mhtz - 50Mhtz ?
2. How the long push on the T-Scan bottom (No 4) can help me ?
3. How in practice the AFC bottom can help me (No 0) ?
4. How the scope can help me ?

Please in simple English and in practice every day use aspect of using the R20.


Many thanks in advance
Dubi