Universal Licensing System

WQXC591

License details

ULS identifier	3775281
Call sign	WQXC591
Radio service	YG
Status	A
Grant date	2026-01-08
Expiration	2036-01-30
Frequency range	451.74375 - 469.25 MHz (26 frequencies)
Locations	2
Representative location	San Ramon, CONTRA COSTA, CA
Coordinates	37.7389444, -121.9950556
Source archive	l_LMpriv.zip
Dataset refreshed	2026-08-02 01:14:20

Licensee

Name	Crystal SMR Inc.
Applicant type	C
FRN	0005749403
Location	San Leandro, CA
Address	1601 Neptune Drive, San Leandro, CA, 94577
Phone	5108959500
Email	[email protected]

Frequency assignments

Location	Antenna	Station class	Assigned MHz	Output W	ERP W
1	1	FB6	451.74375000	20.000000	20.000000
2	1	MO6	451.74375000	6.000000	6.000000
2	1	MO6	456.74375000	6.000000	6.000000
1	1	FB6	461.30000000	40.000000	44.000000
2	1	MO6	461.30000000	25.000000	50.000000
1	1	FB6	461.65000000	50.000000	44.000000
2	1	MO6	461.65000000	25.000000	50.000000
1	1	FB6	461.66250000	50.000000	44.000000
2	1	MO6	461.66250000	25.000000	50.000000
1	1	FB6	461.67500000	40.000000	44.000000
2	1	MO6	461.67500000	25.000000	50.000000
1	1	FB6	461.73750000	50.000000	44.000000
2	1	MO6	461.73750000	25.000000	50.000000
1	1	FB6	462.17500000	40.000000	44.000000
2	1	MO6	462.17500000	25.000000	50.000000
1	1	FB6	463.21875000	40.000000	44.000000
2	1	MO6	463.21875000	25.000000	50.000000
1	1	FB6	463.32500000	40.000000	44.000000
2	1	MO6	463.32500000	25.000000	50.000000
1	1	FB6	463.71875000	40.000000	44.000000
2	1	MO6	463.71875000	25.000000	50.000000
1	1	FB6	463.73125000	40.000000	44.000000
2	1	MO6	463.73125000	25.000000	50.000000
1	1	FB6	464.13750000	50.000000	44.000000
2	1	MO6	464.13750000	25.000000	50.000000
1	1	FB6	464.25000000	50.000000	44.000000
2	1	MO6	464.25000000	25.000000	50.000000
2	1	MO6	466.30000000	25.000000	50.000000
2	1	MO6	466.65000000	25.000000	50.000000
2	1	MO6	466.66250000	25.000000	50.000000
2	1	MO6	466.67500000	25.000000	50.000000
2	1	MO6	466.73750000	25.000000	50.000000
2	1	MO6	467.17500000	25.000000	50.000000
2	1	MO6	468.21875000	25.000000	50.000000
2	1	MO6	468.32500000	25.000000	50.000000
2	1	MO6	468.71875000	25.000000	50.000000
2	1	MO6	468.73125000	25.000000	50.000000
2	1	MO6	469.13750000	25.000000	50.000000
2	1	MO6	469.25000000	25.000000	50.000000

Emission designators

Location	Antenna	Frequency MHz	Emission
1	1	451.74375000	4K00F1E
1	1	451.74375000	4K00F1D
2	1	451.74375000	4K00F1D
2	1	451.74375000	4K00F1E
2	1	456.74375000	4K00F1E
2	1	456.74375000	4K00F1D
1	1	461.30000000	4K00F1E
1	1	461.30000000	4K00F1D
2	1	461.30000000	4K00F1E
2	1	461.30000000	4K00F1D
1	1	461.65000000	4K00F1D
1	1	461.65000000	4K00F1E
2	1	461.65000000	4K00F1D
2	1	461.65000000	4K00F1E
1	1	461.66250000	4K00F1E
1	1	461.66250000	4K00F1D
2	1	461.66250000	4K00F1D
2	1	461.66250000	4K00F1E
1	1	461.67500000	4K00F1D
1	1	461.67500000	4K00F1E
2	1	461.67500000	4K00F1D
2	1	461.67500000	4K00F1E
1	1	461.73750000	4K00F1D
1	1	461.73750000	4K00F1E
2	1	461.73750000	4K00F1E
2	1	461.73750000	4K00F1D
1	1	462.17500000	4K00F1D
1	1	462.17500000	4K00F1E
2	1	462.17500000	4K00F1D
2	1	462.17500000	4K00F1E
1	1	463.21875000	4K00F1D
1	1	463.21875000	4K00F1E
2	1	463.21875000	4K00F1D
2	1	463.21875000	4K00F1E
1	1	463.32500000	4K00F1D
1	1	463.32500000	4K00F1E
2	1	463.32500000	4K00F1E
2	1	463.32500000	4K00F1D
1	1	463.71875000	4K00F1E
1	1	463.71875000	4K00F1D
2	1	463.71875000	4K00F1D
2	1	463.71875000	4K00F1E
1	1	463.73125000	4K00F1E
1	1	463.73125000	4K00F1D
2	1	463.73125000	4K00D1E
2	1	463.73125000	4K00F1D
1	1	464.13750000	4K00F1D
1	1	464.13750000	4K00F1E
2	1	464.13750000	4K00F1D
2	1	464.13750000	4K00F1E
1	1	464.25000000	4K00F1E
1	1	464.25000000	4K00F1D
2	1	464.25000000	4K00F1D
2	1	464.25000000	4K00F1E
2	1	466.30000000	4K00F1D
2	1	466.30000000	4K00F1E
2	1	466.65000000	4K00F1D
2	1	466.65000000	4K00F1E
2	1	466.66250000	4K00F1D
2	1	466.66250000	4K00F1E
2	1	466.67500000	4K00F1E
2	1	466.67500000	4K00F1D
2	1	466.73750000	4K00F1D
2	1	466.73750000	4K00F1E
2	1	467.17500000	4K00F1D
2	1	467.17500000	4K00F1E
2	1	468.21875000	4K00F1E
2	1	468.21875000	4K00F1D
2	1	468.32500000	4K00F1E
2	1	468.32500000	4K00F1D
2	1	468.71875000	4K00F1E
2	1	468.71875000	4K00F1D
2	1	468.73125000	4K00F1E
2	1	468.73125000	4K00F1D
2	1	469.13750000	4K00F1D
2	1	469.13750000	4K00F1E
2	1	469.25000000	4K00F1E
2	1	469.25000000	4K00F1D

Licensed locations

Location	Type	Address	Coordinates	Ground elevation	Structure	Height	NEPA
1	T	MOUNT WIEDEMANN, San Ramon, CONTRA COSTA, CA	37.73894444, -121.99505556	562.300 m	GTOWER	21.000 m structure / 21.300 m overall	N
2	T						N

Antennas

Location	Antenna	Type	Make / model	Height	Polarization	Gain dB	Azimuth	Radiation center	Maximum EIRP W
1	1	T		21.300 m				391.200
1	2	T

Control points

Number	Address	County	Phone
1	1601 Neptune Drive, San Leandro, CA	ALAMEDA	5108959500

License history

Date	File or call sign	Action
2026-01-08	WQXC591	LIREN
2025-11-24	WQXC591	LETRES
2021-10-08	WQXC591	LIMOD
2016-05-10	WQXC591	LIMOD
2016-01-30	WQXC591	LIISS

Sources and provenance

Source	Source record	Retrieved	Match
ULS	3775281	2026-08-02 01:14:20	Official Bulk Record

Selected field provenance

Field	Displayed value	Source	Observed
Call Sign	WQXC591	ULS 3775281	2026-08-02 01:14:20
Status	A	ULS 3775281	2026-08-02 01:14:20
Service	YG	ULS 3775281	2026-08-02 01:14:20
Grant Date	2026-01-08	ULS 3775281	2026-08-02 01:14:20
Expiration Date	2036-01-30	ULS 3775281	2026-08-02 01:14:20