| Callsign | W3GRF |
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2017-05-02 |
| Effective Date | 2021-02-22 |
| Expire Date | 2027-06-03 |
| Cancel Date | |
| Last Action Date | 2024-04-16 |
| End Date | 2027-06-03 |
| Available Date | 2029-06-04 |
| Applicant Type | B - Amateur Club |
| Entity Name | POTOMAC VALLEY RADIO CLUB |
| Street Address / Locality | 1320 Cape St Claire Rd 343 Annapolis, MD 21409 |
| County | Anne Arundel County |
| Zip Location | 39°01'06.4"N 76°26'33.1"W |
| Maidenhead | FM19sa |
| FRN | 0015735624 |
| Licensee ID/SGIN | L01213695 / 000 |
| Licensee Class | |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 3 / 3 / MD |
| Prev Callsign / Prev Class | KB3BIW |
| Next Callsign | |
| Trustee Callsign / Trustee Name | W3LPL Donovan, Francis |
| Vanity Type | D - In Memoriam (Club) |
| ULS File Number | 0009425450 |
| Phonetic weight / Morse weight | 9 / 62 |