Universal Licensing System
KB77561
CRITCHFIELD MECHANICAL INC
License details
| ULS identifier | 1595780 |
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| Call sign | KB77561 |
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| Radio service | IG |
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| Status | E |
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| Grant date | 1997-04-22 |
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| Expiration | 2002-06-11 |
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| Cancellation | 2002-10-13 |
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| Frequency range | 154.57 - 154.6 MHz (2 frequencies) |
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| Locations | 1 |
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| Representative location | CA |
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| Source archive | l_LMpriv.zip |
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| Dataset refreshed | 2026-08-02 01:16:38 |
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Licensee
| Name | CRITCHFIELD MECHANICAL INC |
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| Applicant type | C |
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| FRN | 0001535335 |
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| Location | MENLO PARK, CA |
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| Address | 4085 CAMPBELL AVE, MENLO PARK, CA, 94025 |
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| Phone | 4153217801 |
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Frequency assignments
| Location | Antenna | Station class | Assigned MHz | Upper MHz | Carrier MHz | Output W | ERP W | Altitude |
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| 1 | 1 | MO | 154.57000000 | | | 1.000000 | | |
| 1 | 1 | MO | 154.60000000 | | | 1.000000 | | |
Emission designators
| Location | Antenna | Frequency MHz | Upper MHz | Emission |
|---|
| 1 | 1 | 154.57000000 | | 20K0F3E |
| 1 | 1 | 154.60000000 | | 20K0F3E |
Licensed locations
| Location | Type | Address | Coordinates | Ground elevation | Structure | Height | NEPA |
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| 1 | T | CA | | | | | |
Antennas
| Location | Antenna | Type | Make / model | Height | Polarization | Gain dB | Azimuth | Radiation center | Maximum EIRP W |
|---|
| 1 | 1 | T | | | | | | | |
Control points
| Number | Address | County | Phone |
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| 1 | 4085 CAMPBELL AVE, MENLO PARK, CA | | 4153217801 |
License history
| Date | File or call sign | Action |
|---|
| 2002-10-13 | KB77561 | LIEXP |
| 2002-03-18 | KB77561 | LETRES |
| 2001-09-20 | KB77561 | AUDOPR |
| 2000-11-22 | KB77561 | LICCNV |
| 1997-04-22 | KB77561 | LIREN |
| 1997-04-22 | KB77561 | AUTHPR |
Sources and provenance
| Source | Source record | Retrieved | Match |
|---|
| ULS | 1595780 | 2026-08-02 01:16:38 | Official Bulk Record |
Selected field provenance
| Field | Displayed value | Source | Observed |
|---|
| Call Sign | KB77561 | ULS 1595780 | 2026-08-02 01:16:38 |
| Status | E | ULS 1595780 | 2026-08-02 01:16:38 |
| Service | IG | ULS 1595780 | 2026-08-02 01:16:38 |
| Grant Date | 1997-04-22 | ULS 1595780 | 2026-08-02 01:16:38 |
| Expiration Date | 2002-06-11 | ULS 1595780 | 2026-08-02 01:16:38 |
| Cancellation Date | 2002-10-13 | ULS 1595780 | 2026-08-02 01:16:38 |