09-17-2023, 08:45 AM
The dashed line indicates an optional connection since the radio is subject to many environments and has multiple bands with various lengths of antennae. The connection usually has a direct effect on the noise interference recieved.
On the schematic above it looks to me like the terminals are labeled A, Z and G. Maybe somewhere else in the schematic there is a clue to what Z stands for. It's up to the schematic editors as to what to use. Often they are not associated with the manufacturer.
The antenna coils are generally step-up transformers. Considering this, a noise interference signal would also get stepped up. It's a delicate balance.
On the schematic above it looks to me like the terminals are labeled A, Z and G. Maybe somewhere else in the schematic there is a clue to what Z stands for. It's up to the schematic editors as to what to use. Often they are not associated with the manufacturer.
The antenna coils are generally step-up transformers. Considering this, a noise interference signal would also get stepped up. It's a delicate balance.
