Exhibit 99.1 PRESS RELEASE Frequency Electronics, Inc. Announces Third Quarter and Fiscal Year 2024 Financial Results Mitchel Field, NY, March 14, 2024 – Frequency Electronics, Inc. (“FEI” or the “Company”) (NASDAQ-FEIM) is reporting revenues for the three-month and nine-month periods of fiscal 2024, ended January 31, 2024, of approximately $13.7 million and$39.7 million, respectively, compared to revenues of $10.6 million and$27.8 million, respectively, for the same periods of fiscal year 2023, ended Jan ...