This table stores the attenuation values for a particular beacon / antenna combination
| Field | null | Description |
|---|---|---|
| beacon_attn_id | no | A unique ID of this record (auto generated). |
| beacon_id | no | The ID of the beacon this attenuation belongs to. |
| antenna_id | no | The ID of the antenna this attenuation belongs to, |
| attenuation | no | The attenuation value (dB) |
| modified | no | automatically created timestamp of last change |