Uniden UBCD396XT Owner's Manual page 157

Plugging these values into our formula, we get:
For entry A:
Upper
= Base
Base
A
Upper
= 155.415 MHz + (436 – 1 – 380) × 15 kHz
Base
A
Upper
= 155.415 MHz + 55 × 0.015 MHz
Base
A
Upper
= 155.415 MHz + 0.825 MHz
Base
A
Upper
= 156.240 MHz
Base
A
For entry B:
Upper
= Base
Base
B
Upper
= 157.200 MHz + (454 – 1 – 436) × 12.5 kHz
Base
B
Upper
= 157.200 MHz + 17 × 0.0125 MHz
Base
B
Upper
= 157.200 MHz + 0.2125 MHz
Base
B
Upper
= 157.4125 MHz
Base
B
UBCD396XT
+ ( Offset –1 - Offset
A B
+ ( Offset – 1 -Offset
B C
143
) × Step
A A
) × Step
B B