Exhibit 31.1
        
        RULE 13a-14(a) CERTIFICATIONI, Carl F. Fahrenkrug, certify
          that:
        
        1.    I have reviewed this annual report on Form
        10-K of Microwave Filter Company, Inc.;
        2.    Based on my knowledge, this report does not
        contain any untrue statement of a material fact or omit to state
        a material fact necessary to make the statements made, in light
        of the circumstances under which such statements were made, not
        misleading with respect to the period covered by this report;
        3.    Based on my knowledge, the financial
        statements, and other financial information included in this
        report, fairly present in all material respects the financial
        condition, results of operations and cash flows of the
        registrant as of, and for, the periods presented in this report;
        
        4.    The registrant’s other certifying
        officer(s) and I are responsible for establishing and
        maintaining disclosure controls and procedures (as defined in
        Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control
        over financial reporting (as defined in Exchange Act Rules
        13a-15(f) and 15d-15(f))for the registrant and we have:a)    designed
          such disclosure controls and procedures, or caused such
          disclosure controls and procedures to be designed under our
          supervision, to ensure that material information relating to
          the registrant, including its consolidated subsidiaries, is
          made known to us by others within those entities, particularly
          during the period in which this report is being prepared;
        b)    designed
          such internal control over financial reporting, or caused such
          internal control over financial reporting to be designed under
          our supervision, to provide reasonable assurance regarding the
          reliability of financial reporting and the preparation of
          financial statements for external purposes in accordance with
          generally accepted accounting principles;
        c) evaluated the effectiveness
          of the registrant’s disclosure controls and procedures and
          presented in this report our conclusions about the
          effectiveness of the disclosure controls and procedures, as of
          the end of the period covered by this report based on such
          evaluation; and
        d) disclosed in this report any
          change in the registrant’s internal control over financial
          reporting that occurred during the registrant’s most recent
          fiscal quarter (the registrant’s fourth fiscal quarter in the
          case of an annual report) that has materially affected, or is
          reasonably likely to materially affect, the registrant’s
          internal control over financial reporting; and
        
        5.    The registrant’s other certifying
        officer(s) and I have disclosed, based on our most recent
        evaluation of internal control over financial reporting, to the
        registrant’s auditors and the audit committee of the
        registrant’s board of directors (or persons performing the
        equivalent functions):a)    all
          significant deficiencies and material weaknesses in the design
          or operation of internal control over financial reporting
          which are reasonably likely to adversely affect the
          registrant’s ability to record, process, summarize and report
          financial information; and
        b) any fraud, whether or not
          material, that involves management or other employees who have
          a significant role in the Company’s internal control over
          financial reporting.
        Date:  December 19, 2013
              /s/ Carl F. FahrenkrugCarl F. FahrenkrugChief Executive Officer