SCHEDULE 13G/A
                               CUSIP NO. 128126109


                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                 SCHEDULE 13G/A

                    Under the Securities Exchange Act of 1934
                                (Amendment No.3)*


                                  CALAMP CORP.
        ----------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
        ----------------------------------------------------------------
                         (Title of Class of Securities)

                                    128126109
                              --------------------
                                 (CUSIP Number)

                                December 31, 2007
        ----------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

Check the  appropriate box to designate the rule pursuant to which this Schedule
is filed:

         /   /    Rule 13d-1(b)
         / X /    Rule 13d-1(c)
         /   /    Rule 13d-1(d)

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the  liabilities of the section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).





                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109


1)   NAME OF REPORTING PERSON

Quaker Capital Management Corporation
-------------------------------------

         S.S. OR I.R.S. IDENTIFICATION
         NO. OF ABOVE PERSON                            25-1495646
                                                        -----------

2)   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                                                                      (a) [    ]
                                                                      (b) [    ]
3)   SEC USE ONLY

4)   CITIZENSHIP OR PLACE OF ORGANIZATION               Commonwealth of
                                                        Pennsylvania
                                                        -------------
NUMBER OF SHARES BENEFICIALLY OWNED BY
EACH REPORTING PERSON WITH:

         5)       SOLE VOTING POWER                           1,742,200
                                                              ---------

         6)       SHARED VOTING POWER                         0
                                                              ---------

         7)       SOLE DISPOSITIVE POWER                      1,742,200
                                                              ---------

         8)       SHARED DISPOSITIVE POWER                    0
                                                              ---------

9)   AGGREGATE AMOUNT BENEFICIALLY OWNED
     BY EACH REPORTING PERSON                                 1,742,200
                                                              ---------

10)  CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES       [ ]


11)  PERCENT OF CLASS REPRESENTED BY
     AMOUNT IN ROW (9)                                        7.31%
                                                              ------

12) TYPE OF REPORTING PERSON                                  IA
                                                              ------

                               Page 2 of 15 Pages


                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109


1)   NAME OF REPORTING PERSON

Quaker Capital Partners I, L.P.
-------------------------------------

         S.S. OR I.R.S. IDENTIFICATION
         NO. OF ABOVE PERSON                                  25-1778076
                                                              -----------

2)   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                                                                      (a) [    ]
                                                                      (b) [    ]
3)   SEC USE ONLY

4)   CITIZENSHIP OR PLACE OF ORGANIZATION                     Delaware
                                                              -------------
NUMBER OF SHARES BENEFICIALLY OWNED BY
EACH REPORTING PERSON WITH:

         5)       SOLE VOTING POWER                           1,107,100
                                                              ---------

         6)       SHARED VOTING POWER                         0
                                                              ---------

         7)       SOLE DISPOSITIVE POWER                      1,107,100
                                                              ---------

         8)       SHARED DISPOSITIVE POWER                    0
                                                              ---------

9)   AGGREGATE AMOUNT BENEFICIALLY OWNED
     BY EACH REPORTING PERSON                                 1,107,100
                                                              ---------

10)  CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES       [ X ]

         Excludes 635,100 shares of the Issuer's Common Stock owned of record by
Quaker Capital Partners II, L.P.


11)  PERCENT OF CLASS REPRESENTED BY
     AMOUNT IN ROW (9)                                        4.65%
                                                              ------

12)  TYPE OF REPORTING PERSON
                                                              PN
                                                              ------


                               Page 3 of 15 Pages



                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109


1)   NAME OF REPORTING PERSON

Quaker Premier, L.P.
-------------------------------------

         S.S. OR I.R.S. IDENTIFICATION
         NO. OF ABOVE PERSON                                  25-1778068
                                                              -----------

2)   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                                                                      (a) [    ]
                                                                      (b) [    ]
3)   SEC USE ONLY

4)   CITIZENSHIP OR PLACE OF ORGANIZATION                     Delaware
                                                              -----------
NUMBER OF SHARES BENEFICIALLY OWNED BY
EACH REPORTING PERSON WITH:

         5)       SOLE VOTING POWER                           1,107,100
                                                              ---------

         6)       SHARED VOTING POWER                         0
                                                              ---------

         7)       SOLE DISPOSITIVE POWER                      1,107,100
                                                              ---------

         8)       SHARED DISPOSITIVE POWER                    0
                                                              ---------

9)   AGGREGATE AMOUNT BENEFICIALLY OWNED
     BY EACH REPORTING PERSON                                 1,107,100
                                                              ---------

10)  CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES       [ X ]

         Excludes 635,100 shares of the Issuer's Common Stock owned of record by
Quaker Capital Partners II, L.P.


11)  PERCENT OF CLASS REPRESENTED BY
     AMOUNT IN ROW (9)                                        4.65%
                                                              ------

12)  TYPE OF REPORTING PERSON                                 PN
                                                              ------

                               Page 4 of 15 Pages


                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109
1)   NAME OF REPORTING PERSON

Quaker Capital Partners II, L.P.
-------------------------------------

         S.S. OR I.R.S. IDENTIFICATION
         NO. OF ABOVE PERSON                                  11-3667966
                                                              -----------

2)   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                                                                      (a) [    ]
                                                                      (b) [    ]
3)   SEC USE ONLY

4)   CITIZENSHIP OR PLACE OF ORGANIZATION                     Delaware
                                                              -------------
NUMBER OF SHARES BENEFICIALLY OWNED BY
EACH REPORTING PERSON WITH:

         5)       SOLE VOTING POWER                           635,100
                                                              ---------

         6)       SHARED VOTING POWER                         0
                                                              ---------

         7)       SOLE DISPOSITIVE POWER                      635,100
                                                              ---------

         8)       SHARED DISPOSITIVE POWER                    0
                                                              ---------

9)   AGGREGATE AMOUNT BENEFICIALLY OWNED
     BY EACH REPORTING PERSON                                 635,100
                                                              ---------

10)  CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES       [ X ]

         Excludes  1,107,100 shares of the Issuer's Common Stock owned of record
by Quaker Capital Partners I, L.P.


11)  PERCENT OF CLASS REPRESENTED BY
     AMOUNT IN ROW (9)                                        2.67%
                                                              ------

12)  TYPE OF REPORTING PERSON                                 PN
                                                              ------

                               Page 5 of 15 Pages


                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109


1)   NAME OF REPORTING PERSON

Quaker Premier II, L.P.
-------------------------------------

         S.S. OR I.R.S. IDENTIFICATION
         NO. OF ABOVE PERSON                                  30-0135937
                                                              -----------

2)   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                                                                      (a) [    ]
                                                                      (b) [    ]
3)   SEC USE ONLY

4)   CITIZENSHIP OR PLACE OF ORGANIZATION                     Delaware
                                                              -------------
NUMBER OF SHARES BENEFICIALLY OWNED BY
EACH REPORTING PERSON WITH:

         5)       SOLE VOTING POWER                           635,100
                                                              ---------

         6)       SHARED VOTING POWER                         0
                                                              ---------

         7)       SOLE DISPOSITIVE POWER                      635,100
                                                              ---------

         8)       SHARED DISPOSITIVE POWER                    0
                                                              ---------

9)  AGGREGATE AMOUNT BENEFICIALLY OWNED
    BY EACH REPORTING PERSON                                  635,100
                                                              ---------

10) CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
    CERTAIN SHARES        [ X ]

         Excludes  1,107,100 shares of the Issuer's Common Stock owned of record
by Quaker Capital Partners I, L.P.


11)  PERCENT OF CLASS REPRESENTED BY
     AMOUNT IN ROW (9)                                        2.67%
                                                              ------

12)  TYPE OF REPORTING PERSON                                 PN
                                                              ------
                                  Page 6 of 15 Pages



                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109

1)   NAME OF REPORTING PERSON

Mark G. Schoeppner
-------------------------------------



2)   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

                                                                      (a) [    ]
                                                                      (b) [    ]
3)   SEC USE ONLY

4)   CITIZENSHIP OR PLACE OF ORGANIZATION                     United States
                                                              of America
                                                              -------------
NUMBER OF SHARES BENEFICIALLY OWNED BY
EACH REPORTING PERSON WITH:

         5)       SOLE VOTING POWER                           0
                                                              ---------

         6)       SHARED VOTING POWER                         0
                                                              ---------

         7)       SOLE DISPOSITIVE POWER                      0
                                                              ---------

         8)       SHARED DISPOSITIVE POWER                    0
                                                              ---------

9)   AGGREGATE AMOUNT BENEFICIALLY OWNED
     BY EACH REPORTING    PERSON                              0
                                                              ---------

10)  CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
     CERTAIN SHARES      [X]

         Mark G. Schoeppner  disclaims  beneficial ownership of 1,742,200 shares
         of the  Issuer's  Common  Stock  that may be deemed to be  beneficially
         owned by Quaker Capital  Partners I, L.P. and Quaker  Capital  Partners
         II, L.P.

11)   PERCENT OF CLASS REPRESENTED BY
      AMOUNT IN ROW (9)                                        0%
                                                              ------

14)   TYPE OF REPORTING PERSON                                IN
                                                              ------

                               Page 7 of 15 Pages


                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109
Item 1.

         (a)      Name of Issuer

                  CALAMP CORP.
                  --------------------------------------------------------------

         (b)      Address of Issuer's Principal Executive Offices

                  1401 N. Rice Avenue, Oxnard, CA  93030
                  --------------------------------------------------------------
Item 2.

         (a)      Names of Persons Filing

                  Quaker Capital Management Corporation
                  Quaker Capital Partners I, L.P.
                  Quaker Capital Partners II, L.P.
                  Quaker Premier, L.P.
                  Quaker Premier II, L.P.
                  Mark G. Schoeppner
                  --------------------------------------------------------------

         (b)      Address of Principal Business Office or, if none, Residence

                  401 Wood Street, Suite 1300, Pittsburgh, PA  15222
                  --------------------------------------------------------------

         (c)      Citizenship

                  Quaker Capital Management Corporation - Pennsylvania
                  Corporation

                  Quaker Capital Partners I, L.P. - Delaware partnership
                  Quaker Capital Partners II, L.P.- Delaware partnership
                  Quaker Premier, L.P. - Delaware partnership
                  Quaker Premier II, L.P. - Delaware partnership
                  Mark G. Schoeppner - United States citizen
                  --------------------------------------------------------------

         (d)      Title of Class of Securities

                  Common Stock
                  --------------------------------------------------------------

         (e)      CUSIP Number

                  128126109
                  --------------------------------------------------------------

                               Page 8 of 15 Pages


                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109

Item 3.  If this statement is filed  pursuant to ss.ss.240.13d-1(b) or 240.13d-2
         (b) or (c), check whether the person filing is a:

     (a)  /   / Broker of dealer registered under section 15 of the Act;

     (b)  /   / Bank as defined in section 3(a)(6) of the Act;

     (c) /   /  Insurance  company as defined in section  3(a)(19) of the  Act;

     (d) /   /  Investment  company registered under section 8 of the Investment
                Company Act of 1940;

     (e) / X /  An   investment   adviser   in   accordance with ss.240.13d-1(b)
                (l)(ii)(E);

     (f) /   /  An employee  benefit plan or endowment  fund in accordance  with
                ss.240.13d-1(b)(1)(ii)(F);

     (g) /   /  A parent  holding  company or control person in accordance  with
                ss.240.13d-1(b)(1)(ii)(G);

     (h) /   /  A savings association as defined in Section 3(b) of the  Federal
                Deposit Insurance Act;

     (i) /   /  A church plan  that  is  excluded   from  the   definition of an
                investment  company  under  section  3(c)(14)of  the  Investment
                Company Act of 1940;

     (j) /   /  Group, in accordance with ss.240.13d-1((b)(l)(ii)(J)

Item 4.  Ownership
         ---------

         QUAKER CAPITAL MANAGEMENT CORPORATION:

         (a) Amount Beneficially Owned: 1,742,200

             The filing of this report  shall not be construed  as  an admission
             that Quaker  Capital  Management  Corporation   is, for purposes of
             Section  13(d)  or 13(g) of the Act or for any other purposes,  the
             beneficial owner of these securities. Quaker Capital Management


                               Page 9 of 15 Pages




                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109

                  Corporation   disclaims  beneficial ownership of all 1,742,200
                  shares covered by this Schedule 13G/A.

         (b) Percent of Class: 7.31%

         (c)

           (i)   Sole power to vote or direct the vote: 1,742,200

           (ii)  Shared power to vote or direct the vote: 0

           (iii) Sole power to dispose or direct the disposition of: 1,742,200

           (iv)  Shared power to dispose or direct the disposition of: 0

         QUAKER CAPITAL PARTNERS I, L.P.:

         a) Amount Beneficially Owned: 1,107,100

            The filing of this report shall not be construed  as  an   admission
            that Quaker  Capital Partners I, L.P. is, for purposes of Section 13
            (d) or 13(g) of the Act or for any  other  purposes, the  beneficial
            owner of these securities. Quaker Capital Partners I, L.P. disclaims
            beneficial ownership of 635,100  shares  covered  by  this  Schedule
            13G/A.

         (b) Percent of Class: 4.65%

         (c)

           (i)   Sole power to vote or direct the vote: 1,107,100

           (ii)  Shared power to vote or direct the vote: 0

           (iii) Sole power to dispose or direct the disposition of: 1,107,100

           (iv)  Shared power to dispose or direct the disposition of: 0

         QUAKER PREMIER, L.P.:

         a) Amount Beneficially Owned: 1,107,100

            The filing of this report  shall  not  be construed  as an admission
            that Quaker Premier, L.P. is, for purposes


                              Page 10 of 15 Pages




                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109

            of Section 13(d) or 13(g) of the Act or for any other  purposes, the
            beneficial   owner  of  these  securities.   Quaker  Premier,   L.P.
            disclaims beneficial  ownership of 635,100  shares covered  by  this
            Schedule 13G/A.

         (b) Percent of Class: 4.65%

         (c)

           (i)   Sole power to vote or direct the vote: 1,107,100

           (ii)  Shared power to vote or direct the vote: 0

           (iii) Sole power to dispose or direct the disposition of: 1,107,100

           (iv)  Shared power to dispose or direct the disposition of: 0

         QUAKER CAPITAL PARTNERS II, L.P.:

         a) Amount Beneficially Owned: 635,100

            The filing of this report shall not  be  construed  as an  admission
            that Quaker Capital  Partners II, L.P. is,  for  purposes of Section
            13(d) or 13(g) of the Act or for any other  purposes, the beneficial
            owner of these   securities.    Quaker  Capital  Partners  II,  L.P.
            disclaims beneficial ownership of 1,107,100  shares  covered by this
            Schedule 13G/A.

         (b) Percent of Class: 2.67%

         (c)

           (i)   Sole power to vote or direct the vote: 635,100

           (ii)  Shared power to vote or direct the vote: 0

           (iii) Sole power to dispose or direct the disposition of: 635,100

           (iv)  Shared power to dispose or direct the disposition of: 0

         QUAKER PREMIER II, L.P.:

         a) Amount Beneficially Owned: 635,100


                              Page 11 of 15 Pages


                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109

             The filing of this report  shall not be construed  as  an admission
             that Quaker Premier II, L.P. is, for  purposes  of Section 13(d) or
             13(g) of the Act or for any  other  purposes,  the beneficial owner
             of these securities.  Quaker  Premier II, L.P. disclaims beneficial
             ownership of 1,107,100 shares covered by this Schedule 13G/A.

         (b) Percent of Class: 2.67%

         (c)

           (i)   Sole power to vote or direct the vote: 635,100

           (ii)  Shared power to vote or direct the vote: 0

           (iii) Sole power to dispose or direct the disposition of: 635,100

           (iv)  Shared power to dispose or direct the disposition of: 0

         MARK G. SCHOEPPNER:

         a) Amount Beneficially Owned: 0

            The filing of this report shall not be  construed  as an   admission
            that Mark G.  Schoeppner  is, for   purposes  of  Section   13(d) or
            13(g) of the Act or for any  other  purposes,  the  beneficial owner
            of these   securities.  Mark  G.  Schoeppner  disclaims   beneficial
            ownership of all 1,742,200 shares covered by this Schedule 13G/A.

         (b) Percent of Class: 0%

         (c)

           (i)   Sole power to vote or direct the vote: 0

           (ii)  Shared power to vote or direct the vote: 0

           (iii) Sole power to dispose or direct the disposition of: 0

           (iv)  Shared power to dispose or direct the disposition of: 0

Item 5.  Ownership of Five Percent or Less of a Class

                              Page 12 of 15 Pages


                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109

                  If this statement is being filed to report the fact that as of
the date hereof,  the reporting  person has ceased to be the beneficial owner of
more than five percent of the class of securities, check the following:

                                                                      ----------

Item 6.  Ownership of More than Five Percent on Behalf of Another Person

                  All  1,742,200 of the shares with respect to which this report
is filed are owned by a variety of investment advisory clients of Quaker Capital
Management  Corporation,  which clients are entitled to receive dividends on and
the proceeds  from the sale of such shares.  No client is known to own more than
5% of the class.

Item 7.  Identification and Classification  of the Subsidiary Which Acquired the
         Security Being Reported on by the Parent Holding Company

         Not applicable.

Item 8.  Identification and Classification of Members of the Group

         Not applicable.

Item 9.  Notice of Dissolution of Group

         Not applicable.

Item 10. Certification

                  By signing  below I certify  that, to the best of my knowledge
and belief, the securities  referred to above were acquired not acquired and are
not held for the purpose of or with the effect of changing  or  influencing  the
control of the issuer of the  securities  and were not acquired and are not held
in connection with or as a participant in any transaction having that purpose or
effect.


                                    SIGNATURE

                  After  reasonable  inquiry and to the best of my knowledge and
belief,  I certify  that the  information  set forth in this  statement is true,
complete and correct.


                              Page 13 of 15 Pages



                                 SCHEDULE 13G/A
                              CUSIP NO. 128126109

February 14, 2008                   QUAKER CAPITAL MANAGEMENT CORPORATION

                                    /s/ Mark G. Schoeppner
                                    --------------------------------------------
                                    Mark G. Schoeppner, President


                                    QUAKER CAPITAL PARTNERS I, L.P.

                                    By:  Quaker Premier, L.P., its
                                         general partner

                                         By:  Quaker Capital Management
                                              Corporation, its general
                                              partner


                                         By:  /s/ Mark G. Schoeppner
                                              ----------------------------------
                                              Mark G. Schoeppner
                                              President


                                    QUAKER PREMIER, L.P.

                                    By:  Quaker Capital Management Corporation,
                                         its general partner


                                         By:  /s/ Mark G. Schoeppner
                                              ----------------------------------
                                              Mark G. Schoeppner
                                              President


                                    QUAKER CAPITAL PARTNERS II, L.P.

                                    By:  Quaker Premier II, L.P., its general
                                         partner

                                         By:  Quaker Capital Management
                                              Corporation, its general partner


                                         By:  /s/ Mark G. Schoeppner
                                              ----------------------------------
                                              Mark G. Schoeppner
                                              President


                              Page 14 of 15 Pages




                                    QUAKER PREMIER II, L.P.

                                    By:  Quaker Capital Management Corporation,
                                         its general partner


                                         By:  /s/ Mark G. Schoeppner
                                              ----------------------------------
                                              Mark G. Schoeppner
                                              President



                                    /s/ Mark G. Schoeppner
                                    --------------------------------------------
                                    Mark G. Schoeppner







                              Page 15 of 15 Pages