Universal Licensing System
KB74897
Silke Communications, Inc.
License details
| ULS identifier | 1769007 |
|---|
| Call sign | KB74897 |
|---|
| Radio service | IG |
|---|
| Status | A |
|---|
| Grant date | 2025-09-06 |
|---|
| Expiration | 2035-10-11 |
|---|
| Frequency range | 467.5125 MHz |
|---|
| Locations | 4 |
|---|
| Source archive | l_LMpriv.zip |
|---|
| Dataset refreshed | 2026-08-02 01:09:28 |
|---|
Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
|---|
| 1 | 1 | MO | 451.16250000 | | | 2.000000 | | |
| 3 | 1 | MO | 456.16250000 | | | 2.000000 | | |
| 1 | 1 | MO | 462.48750000 | | | 2.000000 | | |
| 3 | 1 | MO | 462.51250000 | | | 2.000000 | | |
| 2 | 1 | MO | 467.48750000 | | | 2.000000 | | |
| 4 | 1 | MO | 467.51250000 | | | 2.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 451.16250000 | | 11K0F3E |
| 1 | 1 | 451.16250000 | | 11K2F3E |
| 3 | 1 | 456.16250000 | | 11K2F3E |
| 3 | 1 | 456.16250000 | | 11K0F3E |
| 1 | 1 | 462.48750000 | | 11K0F3E |
| 1 | 1 | 462.48750000 | | 11K2F3E |
| 3 | 1 | 462.51250000 | | 11K2F3E |
| 3 | 1 | 462.51250000 | | 11K0F3E |
| 2 | 1 | 467.48750000 | | 11K2F3E |
| 2 | 1 | 467.48750000 | | 11K0F3E |
| 4 | 1 | 467.51250000 | | 11K0F3E |
| 4 | 1 | 467.51250000 | | 11K2F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
|---|
| 1 | T | | | | | | |
| 2 | T | | | | | | |
| 3 | T | | | | | | |
| 4 | T | | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
| 1 | 2 | T | | | | | | | |
| 1 | 3 | T | | | | | | | |
| 1 | 4 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
|---|
| 2 | 3 Crow Canyon Road, San Ramon, CA | CONTRA COSTA | 9255521820 |
| 3 | 9 Crow Canyon Road, San Ramon, CA | CONTRA COSTA | 9255521820 |
License history
| Date | File or call sign | Action |
|---|
| 2025-09-06 | KB74897 | LIREN |
| 2025-07-21 | KB74897 | LETRES |
| 2021-06-16 | KB74897 | LIAUA |
| 2020-12-31 | KB74897 | LIAUA |
| 2016-11-03 | KB74897 | LIAUA |
| 2016-10-20 | KB74897 | LIAUA |
| 2015-09-18 | KB74897 | LIREN |
| 2015-09-17 | KB74897 | ESUAPR |
| 2015-07-20 | KB74897 | LETRES |
| 2013-02-05 | KB74897 | LIMOD |
| 2012-12-18 | KB74897 | LIMOD |
| 2012-10-17 | KB74897 | ESCAPR |
| 2012-10-16 | KB74897 | EFUAPR |
| 2012-10-16 | KB74897 | ESUAPR |
| 2005-07-15 | KB74897 | LIREN |
| 2005-07-14 | KB74897 | ESUAPR |
| 2002-01-09 | KB74897 | AUDOPR |
| 2001-01-15 | KB74897 | LIASS |
| 2000-11-23 | KB74897 | LICCNV |
| 2000-09-08 | KB74897 | LIREN |
| 2000-09-08 | KB74897 | AUTHPR |
| 2000-07-10 | KB74897 | LETRES |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1769007 | 2026-08-02 01:09:28 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KB74897 | ULS 1769007 | 2026-08-02 01:09:28 |
| Status | A | ULS 1769007 | 2026-08-02 01:09:28 |
| Service | IG | ULS 1769007 | 2026-08-02 01:09:28 |
| Grant Date | 2025-09-06 | ULS 1769007 | 2026-08-02 01:09:28 |
| Expiration Date | 2035-10-11 | ULS 1769007 | 2026-08-02 01:09:28 |