Amateur Radio
General Amateur Radio
| Frequency | Input | License | Type | Tone | Tone In | Alpha Tag | Description | Mode | Tag |
|---|---|---|---|---|---|---|---|---|---|
| 146.760 | 146.160 | WA3DZD | RM | 107.2 PL | 107.2 PL | MD FM Assn | Maryland FM Association | FM | Ham |
| 224.760 | 223.160 | WA3DZD | RM | CSQ | 107.2 PL | MD FM Assn | Maryland FM Association | FM | Ham |
| 444.000 | 449.000 | WA3DZD | RM | CSQ | 107.2 PL | MD FM Assn | Maryland FM Association | FM | Ham |
GMRS
| Frequency | Input | License | Type | Tone | Tone In | Alpha Tag | Description | Mode | Tag |
|---|---|---|---|---|---|---|---|---|---|
| 462.650 | 467.650 | RM | GMRS Ellicott | Ellicott City | FMN | Other |
Skywarn/RACES
| Frequency | Input | License | Type | Tone | Tone In | Alpha Tag | Description | Mode | Tag |
|---|---|---|---|---|---|---|---|---|---|
| 147.135 | 147.735 | K3CUJ | RM | 156.7 PL | 156.7 PL | CARA 147.135 | Columbia Amateur Radio Association | FM | Ham |
| 147.390 | 147.990 | K3CUJ | RM | 156.7 PL | 156.7 PL | CARA 147.39 | Columbia Amateur Radio Association | FM | Ham |
| 449.475 | 444.475 | K3CUJ | RM | 156.7 PL | 156.7 PL | CARA 449.475 | Columbia Amateur Radio Association | FM | Ham |
Callsigns by ZIP Code
| 12577 | 20701 | 20723 | 20759 | 20763 | 20777 | 20794 | 20833 | 21029 | 21036 | 21041 | 21042 | 21043 | 21044 | 21045 |
| 21046 | 21075 | 21150 | 21163 | 21723 | 21737 | 21738 | 21765 | 21769 | 21794 | 21797 | 70461 | 80218 |