Universal Licensing System
KNBF391
SPRINGFIELD MASS TRANSIT DISTRICT
License details
| ULS identifier | 1210703 |
|---|
| Call sign | KNBF391 |
|---|
| Radio service | PW |
|---|
| Status | A |
|---|
| Grant date | 2021-06-22 |
|---|
| Expiration | 2031-08-30 |
|---|
| Frequency range | 453.375 - 458.525 MHz (4 frequencies) |
|---|
| Locations | 2 |
|---|
| Representative location | SPRINGFIELD, SANGAMON, IL |
|---|
| Coordinates | 39.7922222, -89.6425000 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:11:10 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 2 | 1 | FB | 453.37500000 | | | 40.000000 | 40.000000 | |
| 2 | 2 | FB | 453.52500000 | | | 40.000000 | 40.000000 | |
| 1 | 1 | MO | 458.37500000 | | | 40.000000 | 40.000000 | |
| 1 | 1 | MO | 458.52500000 | | | 40.000000 | 40.000000 | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 2 | 1 | 453.37500000 | | 7K60FXE |
| 2 | 1 | 453.37500000 | | 11K0F3E |
| 2 | 2 | 453.52500000 | | 11K0F3E |
| 2 | 2 | 453.52500000 | | 7K60FXE |
| 1 | 1 | 458.37500000 | | 11K0F3E |
| 1 | 1 | 458.37500000 | | 7K60FXE |
| 1 | 1 | 458.52500000 | | 7K60FXE |
| 1 | 1 | 458.52500000 | | 11K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | SPRINGFIELD, SANGAMON, IL | 39.79222222, -89.64250000 | | | | N |
| 2 | T | 928 S 9TH ST, SPRINGFIELD, SANGAMON, IL | 39.79222222, -89.64250000 | 183.000 m | TOWER | 40.000 m structure / 40.000 m overall | N |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | 37.000 m | | | | 49.400 | |
| 2 | 2 | T | | 40.000 m | | | | 52.300 | |
Control points
| Number | Address | County | Phone |
|---|
| 1 | 928 S 9TH ST, SPRINGFIELD, IL | SANGAMON | 2175226087 |
License history
| Date | File or call sign | Action |
|---|
| 2021-06-22 | KNBF391 | LIREN |
| 2021-06-07 | KNBF391 | LETRES |
| 2017-05-01 | KNBF391 | LIMOD |
| 2011-10-28 | KNBF391 | LIMOD |
| 2011-06-16 | KNBF391 | LIREN |
| 2011-06-06 | KNBF391 | LETRES |
| 2010-10-13 | KNBF391 | LIMOD |
| 2010-10-11 | KNBF391 | LTSAPR |
| 2004-02-11 | KNBF391 | AUDOPR |
| 2001-08-30 | KNBF391 | LIREN |
| 2001-05-21 | KNBF391 | LETRES |
| 2000-10-20 | KNBF391 | LICCNV |
| 1996-07-17 | KNBF391 | AUTHPR |
| 1996-07-17 | KNBF391 | LIREN |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1210703 | 2026-08-02 01:11:10 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KNBF391 | ULS 1210703 | 2026-08-02 01:11:10 |
| Status | A | ULS 1210703 | 2026-08-02 01:11:10 |
| Service | PW | ULS 1210703 | 2026-08-02 01:11:10 |
| Grant Date | 2021-06-22 | ULS 1210703 | 2026-08-02 01:11:10 |
| Expiration Date | 2031-08-30 | ULS 1210703 | 2026-08-02 01:11:10 |