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  3. 0004201521

FRN 0004201521

EF JOHNSON COMPANY

Grantee codes: 2   FCC IDs: 194   Registered: 2000-12-13

FRN information

FRN0004201521
Entity nameEF JOHNSON COMPANY
Entity typePrivate Sector , Corporation
Website efji.com
Derived from the FCC FRN contact email. Known email-provider domains are excluded.
Registration date2000-12-13
FCC record updated2016-06-15
Contact organizationEF Johnson Company
Contact positionSr VP Engineering
Contact nameMr Karthik A Rangarajan
Contact address1440 Corporate Drive, Irving, TX 75038, United States
Contact emailkrangarajan@efji.com
Contact phone(972) 819-0734
Contact fax(972) 819-2314
Last checked2026-09-01
Other FCC applicationsView this FRN on FCC.report

Related FCC grantees

Grantee codeGranteeLocation
ATHE F Johnson CompanyIrving, Texas, United States
B59RMS Electronics IncBronx, New York, United States

Related FCC IDs

FCC IDModelDevicePurposeFinal action
ATH9OF02334903309OF0233490330This grant includes 11K0F1D and 11K0F2D emissions.Class II Permissive Change1991-06-24
ATH24280022428002Class II Permissive Change1991-06-17
ATH9OF24280019OF2428001Class II Permissive Change1991-06-17
ATH9OF-24289009OF-2428900Class II Permissive Change1991-06-17
ATH9OF-24289019OF-2428901Class II Permissive Change1991-06-17
ATH24285652428565Original Equipment1991-05-08
ATH24285672428567Original Equipment1991-05-08
ATH2423478DLR2423478DLRLand Mobile ReceiverOriginal Equipment1991-01-23
ATH24285622428562Original Equipment1991-01-03
ATH24286062428606Original Equipment1991-01-03
ATH24286162428616Original Equipment1991-01-03
ATH24286212428621Original Equipment1991-01-03
ATH24271542427154Original Equipment1990-11-19
ATH24234782423478Original Equipment1990-08-29
ATH9OF02334100209OF0233410020Class II Permissive Change1990-08-16
ATH9OF02334903209OF0233490320This grant includes 11K0F1D and 11K0F2D emissions.Class II Permissive Change1990-01-30
ATH9OF02334200509OF0233420050This action includes a grant of Class II permissive change in accordance with your letter of November 29, 1989.Class II Permissive Change1990-01-17
ATH24285702428570Original Equipment1989-12-22
ATH9OF24286509OF2428650Original Equipment1989-09-25
ATH24285602428560Original Equipment1989-09-18
ATH24286402428640Original Equipment1989-08-04
ATH9OF24286059OF2428605Class II Permissive Change1989-06-21
ATH9OF242-58629OF242-5862Occupied bandwidth measurements should be submitted for operation with each emission designator requested.Class II Permissive Change1988-12-16
ATH9OF24286009OF2428600Original Equipment1988-12-12
ATH9OF24286209OF2428620Original Equipment1988-12-12
ATH9OF24280009OF2428000Original Equipment1988-11-10
ATH9OF24271729OF2427172Class II Permissive Change1988-10-18
ATH9OF2427172-29OF2427172-2Class II Permissive Change1988-10-18
ATH9OF24271519OF2427151Original Equipment1988-10-13
ATH9OF24271529OF2427152Class II Permissive Change1988-10-13
ATH9OF24271709OF2427170Original Equipment1988-10-13
ATH9OF2427170-29OF2427170-2Original Equipment1988-10-13
ATH9OF24271719OF2427171Original Equipment1988-10-13
ATH9OF2427171-29OF2427171-2Original Equipment1988-10-13
ATH9OF24271559OF2427155Original Equipment1988-10-05
ATH9OF24271759OF2427175Original Equipment1988-10-05
ATH9OF2427175-29OF2427175-2Original Equipment1988-10-05
ATH9OF24210109OF2421010Class II Permissive Change1988-09-29
ATH6PW500-0002-66PW500-0002-6Original Equipment1988-09-14
ATH6PW500-0002-76PW500-0002-7Original Equipment1988-09-14
ATH7NE500-0002-37NE500-0002-3Original Equipment1988-02-22
ATH6PW500-0002-06PW500-0002-0Original Equipment1988-02-18
ATH6PW500-0002-16PW500-0002-1Original Equipment1988-02-18
ATH7NE500-0002-27NE500-0002-2Original Equipment1988-02-18
ATH7NE500-0002-47NE500-0002-4Original Equipment1988-02-18
ATH7NE500-0002-57NE500-0002-5Original Equipment1988-02-18
ATH9OF242-24439OF242-2443Original Equipment1987-11-30
ATH9OF02334201509OF0233420150Original Equipment1987-11-13
ATH9OF24287009OF2428700Original Equipment1987-09-25
ATH9OF242-58529OF242-5852Original Equipment1987-09-15
ATH9OF02334903009OF0233490300Original Equipment1987-06-30
ATH9OF02334903109OF0233490310Original Equipment1987-06-30
ATH9OF24287109OF2428710In the future, please show rated frequency range on 731.Class II Permissive Change1987-06-03
ATH9OF-023890019OF-02389001Original Equipment1987-05-28
ATH9OF24258619OF2425861Power output exceeds the limitation of Section 80.215(e)(3).Class II Permissive Change1987-05-21
ATH9OF242-2442-19OF242-2442-1Original Equipment1987-03-09
ATH9OF242-24429OF242-2442Original Equipment1986-11-10
ATH9OF24211600809OF2421160080Original Equipment1986-06-25
ATH9OF023101059OF02310105Original Equipment1986-06-09
ATH9OF242-40569OF242-4056Original Equipment1986-03-10
ATH9OF242-40669OF242-4066Original Equipment1986-03-10
ATH9OF242-41569OF242-4156Original Equipment1986-03-10
ATH9OF242-41669OF242-4166Original Equipment1986-03-10
ATH9OF02334100109OF0233410010Original Equipment1986-02-25
ATH9OF242-87909OF242-8790Original Equipment1986-02-10
ATH9OF24230619OF2423061Original Equipment1985-08-30
ATH9OF24260859OF2426085Original Equipment1985-07-29
ATH9OQFM-464-A9OQFM-464-AOriginal Equipment1985-05-22
ATH9OF24211630019OF2421163001Original Equipment1985-04-18
ATH9OQFM-4649OQFM-464This action adds digital modulation under the F9 designator.Original Equipment1985-03-11
ATH9OF242-05799OF242-0579Unit is not eligible under Part 95.Original Equipment1985-02-11
ATH9OF242-05899OF242-0589Unit is not eligible under Parts 81 and 83.Original Equipment1985-02-11
ATH9OF24288109OF2428810Original Equipment1985-01-16
ATH9OF24288609OF2428860Original Equipment1985-01-16
ATH9OF24288709OF2428870Original Equipment1985-01-16
ATH9OF242116009OF24211600Original Equipment1985-01-04
ATH9OF242606139OF24260613Unit is not eligible under Parts 81 and 83.Original Equipment1984-11-08
ATH9OF242-35779OF242-3577Original Equipment1984-03-14
ATH9OF242-35889OF242-3588Original Equipment1984-03-14
ATH9OF242-88059OF242-8805Type Acceptance and Certification under same FCC Identifier No F2 or F9 data was submitted.Original Equipment1983-11-16
ATH95924206000019592420600001Type Acceptance and Certification under same FCC ID.Original Equipment1983-08-29
ATH9OF242-88659OF242-8865Type Acceptance and Certification under same FCC ID.Original Equipment1983-08-16
ATH9OF242-88559OF242-8855Type Acceptance and Certification under same FCC ID.Original Equipment1983-05-17
ATH9OF023440089OF02344008Original Equipment1983-02-10
ATH9592420615BJ9592420615BJType Acceptance and Certification under same FCC IDChange in Identification1982-10-26
ATH9592420517CJ9592420517CJType acceptance and Certification under same FCC IDChange in Identification1982-10-12
ATH9592420517BJ9592420517BJType Acceptance and Certification under same FCC IDChange in Identification1982-09-15
ATH9592420615AJ9592420615AJType Acceptance and Certification under same FCC IDChange in Identification1982-09-15
ATH9592420615CJ9592420615CJType Acceptance and Certification under same FCC IDChange in Identification1982-09-15
ATH9592420615DJ9592420615DJType Acceptance and Certification under same FCC IDChange in Identification1982-09-15
ATH9592420615D9592420615DOriginal Equipment1982-04-05
ATH9OF242-05749OF242-0574Original Equipment1982-03-01
B599FFCA-2040-49FFCA-20/40-4Original Equipment1982-03-01
ATH9OF8-0906-4019OF8-0906-401Original Equipment1982-01-05