Document:

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                                                                   Exhibit 10.45

                                                                     Translation

                                 AMENDMENT 1 TO:

     Agreement For The Purchase Of Telular Fixed Telephony Digital Cellular
              Telephones, dated September 13, 2000 (the Agreement)

FIRST CLAUSE.  PURPOSE

Is hereby amended to add, in the first paragraph thereof, after "September 13,
2000" the following phrase "and Purchase Order No. 7400000192, dated June 14,
2002, which includes two (2) products: [*] SX4D TDMA-800 0.6 Watt Voice
Deskphones and [*] 13 dB Yagi Antennas (the "2002 Purchase")."

Is hereby further amended to acknowledge changes to the SX4D TDMA-800 0.6 Watt
Voice Deskphone as described in the revised Technical Description attached in
Exhibit 1. It is understood and agreed that all such changes were formally
requested by Radiomovil DIPSA S.A. de C.V. "DIPSA" and that such changes do not
affect in any way the functionality and performance required by Radiomovil DIPSA
S.A. de C.V. "DIPSA" for the SX4D TDMA-800 0.6 Watt Voice Deskphone units.

SECOND CLAUSE.  PRICES

Is hereby amended to add, at the end of the first paragraph, the following: "The
unit price agreed for the 2002 Purchase of fixed digital cellular telephones is
[*] and the unit price agreed to for 13 dB Yagi Antennas is [*] by MANUFACTURER
to SUPPLIER, as stated in a PO from SUPPLIER to MANUFACTURER, FOB Brownsville,
Texas, U.S.A."

Is hereby further amended to add, at the end of the second paragraph, the
following: "The unit price agreed for the 2002 Purchase of fixed digital
cellular telephones is [*] and the unit price agreed to for 13 dB Yagi Antennas
is [*] by SUPPLIER to DIPSA, as stated in PO No.

<PAGE>

7400000192 placed in the DIPSA warehouses, plus value added tax. The prices are
itemized in the purchase order attached in Exhibit 3, which forms an integral
part of the Agreement."

Is hereby further amended in the fourth paragraph by adding at the end of the
first sentence: "and the 2002 Purchase of [*] units and [*] 13dB Yagi Antennas",
and in the second sentence replacing "fifteen (15) months" with "twenty-seven
(27) months" to extend Radiomovil DIPSA S.A. de C.V. DIPSA's opportunity to
purchase units hereunder."

THIRD CLAUSE. FORM AND TERMS OF PAYMENT

The second paragraph is hereby amended to add: "For the 2002 Purchase, SUPPLIER
shall pay MANUFACTURER within 30 days of delivery to Brownsville, Texas, USA.
MANUFACTURER will provide SUPPLIER a 2% discount (or USD[*]) for payments made
within seven (7) days of delivery to Brownsville, Texas, USA."

The third paragraph is hereby amended to add: "For the 2002 Purchase, DIPSA
shall pay SUPPLIER within 30 days of delivery of the equipment to each of the
DIPSA warehouses, upon delivery of the invoices and the applicable supporting
documentation.

FOURTH CLAUSE: FORMS AND CONDITIONS OF DELIVERY

The chart in the second paragraph is hereby amended to add: "The delivery times
for the 2002 Purchase are specified in PO No. 7400000192 with the following
delivery schedule:

--------------------------------------------------------------------------------
          CELLULAR UNITS          ANTENNA UNITS              DELIVERY DATE
--------------------------------------------------------------------------------
                [*]                    [*]                  August 31, 2002
--------------------------------------------------------------------------------
                [*]                    [*]                  September 2002
--------------------------------------------------------------------------------
                [*]                    [*]                   October 2002
--------------------------------------------------------------------------------
                [*]                    [*]                   November 2002
--------------------------------------------------------------------------------
                [*]                    [*]                   December 2002
--------------------------------------------------------------------------------

                                       2

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SIXTH CLAUSE. WARRANTIES

For the 2002 purchase, the second sentence of the first paragraph is hereby
amended, where it says "or fifteen (15) months from the date of shipment,
whichever is less" by replacing it with the following text: "or up to
twenty-four (24) months from the date of shipment, as the maximum period for
warranty claims by Radiomovil DIPSA S.A. de C.V. DIPSA.

For the 2002 purchase, the second paragraph describing the Section "Replacement
with New Units", where it says "fifteen (15) days from the time received by
DIPSA and with less than 60 minutes of use (internal counter) shall be exchanged
on an express basis" is hereby amended by replacing it with the following:
"fifteen (15) days from installation or invoice to DIPSA's customer cellular
phone user and with less than sixty (60) minutes of use (internal counter),
shall be exchanged on an express basis." At the end of the second paragraph, the
following text shall be added: "In order for DIPSA to obtain replacement with
new equipment, DIPSA must verify, with the original of the bill of sale to the
end consumer user, that the cellular phone has fifteen (15) or fewer days from
installation or invoice."

For the 2002 purchase, at the end of the Section "Replacement with New Units",
the following title is added: "CONDITIONS FOR ENFORCING THE WARRANTY FOR
REPLACEMENT OF NEW UNITS", and the following text is added:

"The conditions for enforcing the warranty for defects out of the box, or
replacement warranty, shall be the conditions verifying that the unit has not
been used for a purpose other than that for which it was designed (residential
telephone), that there exists no evidence of abuse or misuse by the end user or
customer, that there be no physical damage caused by striking and/or falling and
that the defect was not caused by damage due to water, liquids or any kind of
chemicals, that damage was not due to electrical discharges in AC input or by
atmospheric electrical discharges (lightning). In the event that any of the
preceding conditions are verified by the Manufacturer or its Representative, the
Manufacturer's warranty and penalties described in the Sixth Clause hereof,
shall be completely null and void. In addition, certain circumstances are
described

                                       3

<PAGE>

expressly, but not without limitation, that cancel the warranty set forth in
this agreement: antenna breakage, screen breakage, breakage of retractile and/or
feeder cables; breakage of plastic cover, keypad and/or earpiece; damage due to
water, steam, moisture or any other chemical and/or liquid agent; unit has
incomplete external and/or internal parts; unit is incomplete or does not
include Manufacturer's original parts; unit is worked on or altered by service
centers not authorized by the Manufacturer."

For the 2002 purchase, at the end of the section "Equipment Repair", the
following title is added: "CONDITIONS FOR ENFORCING THE WARRANTY FOR EQUIPMENT
REPAIR", and the following text is added:

"The conditions for enforcing the equipment repair warranty are as follows:

     -    The unit shows no evidence of moisture or spilled liquids

     -    There exists no abuse of the unit and no damage by striking and/or
          falling

     -    It has not been damaged by electrical discharges

     -    The unit has not been altered or worked on by personnel not authorized
          by the Manufacturer"

For the 2002 purchase, at the end of the preceding text and before the Seventh
Clause, the following section is added: "PENALTIES FOR NON-PERFORMANCE OF
WARRANTY" with the following text:

"In the event that the damaged equipment submitted to the Manufacturer or its
Representative are not repaired within ten (10) business days from the date on
which the Manufacturer or its Representative receives the equipment, the
Manufacturer or its Representative shall have the option, within said ten (10)
business days, to replace the damaged unit with a like-new properly functioning
reconstructed unit. If the Manufacturer or its Representative does not return,
after ten (10) business days (except for holidays recognized as such by the
Manufacturer and DIPSA, in which case an extension of ten (10) days shall be
agreed) the unit submitted for repair or the above-mentioned replacement unit,
and the manufacturer agrees that it has not complied with

                                       4

<PAGE>

these conditions, DIPSA shall have the option to deduct from its accounts
payable to the Supplier, [*], plus 15% for Value Added Tax, for a total of [*]
for each unit not returned, and in that case, the Manufacturer shall pay to the
Supplier the amount of [*].

TENTH CLAUSE. OBLIGATIONS OF DIPSA

The obligation in the second paragraph is hereby amended by adding: "and accept
all [*]units and [*] 13 dB Yagi Antennas for the 2002 Purchase."

TWELFTH CLAUSE. OBLIGATIONS OF THE MANUFACTURER

The obligation in the second paragraph is hereby amended by adding: "and
manufacture all [*] units and [*] 13 dB Yagi Antennas for the 2002 Purchase"

SIXTEENTH CLAUSE. TERMINATION OF THE AGREEMENT

Paragraph A is hereby amended to add after "[*] contracted hereunder": "and the
[*] unit and [*] 13 dB Yagi Antenna 2002 Purchase".

EXHIBIT 1

Exhibit 1 is hereby amended by adding the revised Technical Description document
that reflects the changes to the SX4D TDMA-800 0.6 Watt Voice Deskphone for the
2002 Purchase.

EXHIBIT 3

Exhibit 3 is hereby added to this agreement (Copy of Purchase Order No.
7400000192).

This Amendment 1 is read, signed and ratified in duplicate in Mexico, D.F., on
June 20, 2002, as the true expression of their will and does not contain any
provisions to the contrary, representing fraud, injury or bad faith with respect
to the parties.

                                       5

<PAGE>

<TABLE>
<S>                                                   <C>
For RADIOMOVIL DIPSA, S.A. DE C.V.:                   For BRIGHTSTAR DE MEXICO, S.A. DE C.V.:

RADIOMOVIL DIPSA, S.A. DE C.V.                        BRIGHTSTAR DE MEXICO, S.A. DE C.V.

Lago Alberto No. 366                                  Av. Industria N(degree)35
Col. Anahuac, C.P. 11320                              Col. San Pablo Xalpa C.P. 54170
Mexico, D.F.                                          Tlalnepantla Edo. De Mexico

[signed]                                              [signed]
JOSE MORALES DUARTE                                   DIEGO GUILLERMO LOPEZ CARBAJAL
Assistant Purchasing Director                         Legal Representative

For TELULAR CORPORATION

(MANUFACTURER):

TELULAR CORPORATION
647 N. Lakeview Parkway
Vernon Hills, IL 60061 U.S.A.
[Signed]
KENNETH E. MILLARD
President and Chief Executive Officer

                                    WITNESSES

[signed]                                              [signed]
VICTOR ANAYA MOLINA                                   JULIO SIBERIO RODRIGUEZ
Purchase Manager                                      Vice President of Sales, CALA
RADIOMOVIL DIPSA, S.A. DE C.V.                        TELULAR CORPORATION
</TABLE>

                                       6

<PAGE>

                                    EXHIBIT 3

              DIPSA Purchase Order to SUPPLIER dated June 14, 2002

                                       7

<PAGE>

                                                                     Translation

<TABLE>
<S>                          <C>                                         <C>                          <C>
------------------------------------------------------------------------------------------------------------------------------------
TELCEL                       BRIGHTSTAR DE MEXICO, S.A. DE C.V.          **BY SUPPLIER **             ** ACCORDING TO CONTRACT **
Digital PCS
                             Av. Industria #35                           **AT LOCAL WAREHOUSES OF
Lago Alberto No. 366         San Pablo Xalpa                             TELCEL ACCORDING             PAYABLE 30 DAYS WITHOUT
Col. Anahuac, 11320          Tlalnepantla                                TO PURCHASE ORDER**          INTEREST
Mexico, D.F.                 MX                                                                       See purchase order details
                             54170                                       See purchase order details
                             Tel. 5553339260                                                          FROM RECEIPT OF DOCUMENTS

------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------
7400000192                                        00        00   0000    WAREHOUSE: GOODS TO BE
                                                                         DELIVERED TO
                                                                         (OPTIONAL INVOICE TO:)
                                                                         See purchase order details
------------------------------------------------------------------------------------------------------------------------------------
                                       6.14.2002  6.30.2002  TCAC
------------------------------------------------------------------------------------------------------------------------------------
6.14.2002         1 OF 3     PLEASE CITE THIS NUMBER ON ALL
                             CORRESPONDENCE, DOCUMENTS AND
                             PACKING

------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------
00010      /7001987          TELULAR DIGITAL PHONECELL SX4D              00   00  0000      [*]  UNIT             [*]          [*]
           TLE00001
------------------------------------------------------------------------------------------------------------------------------------
00020      /50000131         YAGI ANTENNA  JRGR-10-900 13 dB TMC TFR     00   00  0000      [*]  UNIT             [*]          [*]
           TPRANTJBSR10900

                                                                                                             Subtotal          [*]
                                                                                                                  VAT          [*]

                                                                                                            Total USD          [*]

------------------------------------------------------------------------------------------------------------------------------------
                                                                                [*]U.S. DOLLARS AND [*] CENTS

------------------------------------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------------------------------

                                         [signed]
         GUADALUPE TANAKA PEREZ     JOSE MORALES DUARTE
         Purchasing Manager         Assistant Purchasing Director
------------------------------------------------------------------------------------------------------------------------------------
</TABLE>

TELULAR MODEL PHONECELL SX4D TDMA-800 DESKPHONE

<PAGE>

DESCRIPTION OF THE LISTED EQUIPMENT IS FOUND IN:

THE AGREEMENT SIGNED BY RADIOMOVIL DIPSA S.A. DE C.V., BRIGHTSTAR DE MEXICO AND
TELULAR CORPORATION ON SEPTEMBER 13, 2000 AND THE FIRST AMENDMENT TO THE
AGREEMENT FOR THE PURCHASE OF FIXED TELEPHONY DIGITAL CELLULAR TELEPHONES
ENTERED INTO ON JUNE 20, 2002.

NOTE: THIS PURCHASE ORDER IS SUBJECT TO THE PROVISIONS OF THE AGREEMENT BETWEEN
RADIOMOVIL DIPSA S.A. DE C.V., BRIGHTSTAR DE MEXICO AND TELULAR CORPORATION ON
SEPTEMBER 13, 2000 AND THE FIRST AMENDMENT TO THE AGREEMENT FOR THE PURCHASE OF
FIXED TELEPHONY DIGITAL CELLULAR TELEPHONES ENTERED INTO ON JUNE 20, 2002.

** WARRANTY **

AGREEMENT BETWEEN RADIOMOVIL DIPSA S.A. DE C.V., BRIGHTSTAR DE MEXICO AND
TELULAR CORPORATION ON SEPTEMBER 13, 2000 AND THE FIRST AMENDMENT TO THE
AGREEMENT FOR THE PURCHASE OF FIXED TELEPHONY DIGITAL CELLULAR TELEPHONES
ENTERED INTO ON JUNE 20, 2002.

*** NOTES ***

**REQUESTING PARTY -FIXED SERVICES MANAGEMENT REGIONS 01 TO 09 / BERTHA LIMON /
JOSE VASQUEZ GOMEZ **

** PAYMENT TERMS **

30 DAYS AGAINST DELIVERY OF EQUIPMENT TO WAREHOUSES OF RADIOMOVIL DIPSA AND
PRESENTATION OF INVOICE.

BASED ON TELCEL'S POLICY, SUPPLIER MUST INVOICE IN THE SAME CURRENCY AS THIS
PURCHASE ORDER.

** TIME OF DELIVERY **

SUPPLIER WILL MAKE DELIVERY ACCORDING TO THE FOLLOWING SCHEDULE:

         CELLULAR UNITS                     ANTENNAS

              [*]                               [*]  UNITS  AUGUST 2002
              [*]                               [*]  UNITS  SEPTEMBER 2002
              [*]                               [*]  UNITS  OCTOBER 2002
              [*]                               [*]  UNITS  NOVEMBER 2002
              [*]                               [*]  UNITS  DECEMBER 2002
TOTAL         [*]                               [*]  UNITS

UPON RECEIPT OF PURCHASE ORDER, SUPPLIER ACCEPTS ALL CONDITIONS SET FORTH IN THE
AGREEMENT.

DELIVERY SHALL BE FOR THE EXCLUSIVE ACCOUNT AND RESPONSIBILITY OF SUPPLIER UP TO
THE WAREHOUSES INDICATED BY RADIOMOVIL DIPSA S.A. DE C.V.

<PAGE>

PURCHASE ORDER 7400000192, SUPPLIER MAY NOT PROVIDE OR MAKE ANY COLLECTION WITH
THIS PURCHASE ORDER

THIS PURCHASE ORDER SHALL BE FURNISHED BASED ON PARTIAL SHIPMENTS THAT
RADIOMOVIL DIPSA S.A. DE C.V. SHALL DELIVER TO SUPPLIER IN DUE COURSE.

THE TOTAL DELIVERY TIME STIPULATED IN THIS PURCHASE ORDER SHALL BE FROM THE DATE
OF RECEIPT OF SAID ORDER BY SUPPLIER. OTHERWISE PENALTIES ARE IMPOSED FROM SAID
DATE.

ALL EQUIPMENT AT THE TIME OF DELIVERY SHALL HAVE THE REQUIRED SEAL AND APPROVAL
OF RADIOMOVIL DIPSA S.A. DE C.V IF NOT, SAID EQUIPMENT WILL NOT BE ACCEPTED AT
THE WAREHOUSES OF RADIOMOVIL DIPSA, S.A. DE C.V.

ALL EQUIPMENT AT THE TIME OF DELIVERY SHALL HAVE THE NEW PACKING REQUIRED AND
APPROVED BY RADIOMOVIL DIPSA S.A. DE C.V. IF NOT, SAID EQUIPMENT WILL NOT BE
ACCEPTED AT THE WAREHOUSES OF RADIOMOVIL DIPSA, S.A. DE C.V.

** FINANCING **

A) SUPPLIER UNDERTAKES TO ESTABLISH, UNDER THE BEST TERMS FOR TELCEL, THE
FINANCING NECESSARY TO COVER ONE HUNDRED PERCENT (100%) OF THE PART PURCHASED,
FROM REPUTABLE INTERNATIONAL FINANCING SOURCES.

B) SUPPLIER UNDERTAKES TO HANDLE ON A TIMELY BASIS ALL RESPONSIBILITIES
ENTRUSTED TO IT TO OBTAIN FINANCING;

C) THE OPERATIVE SPECIFICATIONS AND FINANCING TERMS AGREED BETWEEN TELCEL AND
THE FINANCIAL INSTITUTION ARE DETERMINED SEPARATELY IN A "FINANCING AGREEMENT."

D) SUPPLIER MAY NOT INVOICE THE EQUIPMENT UNTIL THE CREDIT LINE IS AVAILABLE AT
THE TIME THIS PURCHASE ORDER IS AUTHORIZED, [illegible] ACCEPT THE 2% DISCOUNT
IN SUPPORT OF SUCH FINANCING, FOR WHICH IT WILL PREPARE THE CORRESPONDING
MODIFICATION.

E) SUPPLIER WILL ABSORB ANY FEES OR CREDIT INSURANCE CHARGES FOR THE FINANCING
BASED ON THE RATE IN EFFECT.

** PENALTIES **

AGREEMENT BETWEEN RADIOMOVIL DIPSA S.A. DE C.V., BRIGHTSTAR DE MEXICO AND
TELULAR CORPORATION ON SEPTEMBER 13, 2000 AND THE FIRST AMENDMENT TO THE
AGREEMENT FOR THE PURCHASE OF FIXED TELEPHONY DIGITAL CELLULAR TELEPHONES
ENTERED INTO ON JUNE 20, 2002.

** ANY NOTES AFTER THIS LINE ARE NULL AND VOID **

                                          [signed]
         GUADALUPE TANAKA PEREZ     JOSE MORALES DUARTE
         Purchasing Manager         Assistant Purchasing Director<PAGE>

                                                                     Exhibit 4.1

                                 SPX CORPORATION
                                       and
                   EQUISERVE TRUST COMPANY, N.A., Rights Agent

                                 AMENDMENT NO. 2
                                       to
                                RIGHTS AGREEMENT

AMENDMENT NO. 2 TO RIGHTS AGREEMENT, effective as of June 26, 2002, between SPX
CORPORATION, a Delaware corporation (the "Company"), and EQUISERVE TRUST
COMPANY, N.A., as successor Rights Agent to The Bank of New York (the "Rights
Agent").

A.   The Company and the Rights Agent entered into a Rights Agreement dated as
of June 25, 1996, as amended effective October 22, 1997 (the "Rights
Agreement"), which the Company now desires to amend in certain respects and the
Rights Agent, by executing this Agreement, acknowledges such amendments in
accordance with Section 27 of the Rights Agreement. Accordingly, it is agreed as
follows:

     1.   Section 25(a) of the Rights Agreement is hereby deleted and replaced
          in its entirety with the following:

     (a) In case the Company shall propose (i) to pay any dividend payable in
     stock of any class to the holders of its Preferred Shares or to make any
     other distribution to the holders of its Preferred Shares (other than a
     regular quarterly cash dividend), (ii) to offer to the holders of its
     Preferred Shares rights or warrants to subscribe for or to purchase any
     additional Preferred Shares or shares of stock of any class or any other
     securities, rights or options, (iii) to effect any reclassification of its
     Preferred Shares (other than a reclassification involving only the
     subdivision of outstanding Preferred Shares), (iv) to effect any
     consolidation or merger into or with, or to effect any sale or other
     transfer (or to permit one or more of its Subsidiaries to effect any sale
     or other transfer), in one or more transactions, of 50% or more of the
     assets or earning power of the Company and its Subsidiaries (taken as a
     whole) to, any other Person, (v) to effect the liquidation, dissolution or
     winding up of the Company, or (vi) to declare or pay any dividend on the
     Common Shares payable in Common Shares or to effect a subdivision,
     combination or consolidation of the Common Shares (by reclassification or
     otherwise than by payment of dividends in Common Shares), then, in each
     such case, the Company shall give to each holder of a Right Certificate, in
     accordance with Section 26 hereof, a notice of such proposed action, which
     shall specify the record date for the purposes of such stock dividend, or
     distribution of rights or warrants, or the date on which such
     reclassification, consolidation, merger, sale, transfer, liquidation,
     dissolution, or winding up is to take place and the date of participation
     therein by the holders of the Common Shares and/or Preferred Shares, if any
     such date is to be fixed, and such notice shall be so given in the case of
     any action covered by clause (i) or (ii) above at least 10 days prior to
     the record date for determining holders of the Preferred Shares for
     purposes of such action, in the case of any action covered by clause (vi)
     above as soon as practicable after the distribution date of any dividend or
     the effective date of any subdivision, combination or

<PAGE>

     consolidation of the Common Shares, and in the case of any such other
     action, at least 10 days prior to the date of the taking of such proposed
     action or the date of participation therein by the holders of the Common
     Shares and/or Preferred Shares, whichever shall be the earlier.

B.   As promptly as practicable following the date of this Amendment, the
Company shall cause the legend on the certificates for the Common Stock
referring to the Rights Agreement to be supplemented so as to make reference to
this Amendment.

                                      -2-

<PAGE>

IN WITNESS WHEREOF, the parties hereto have caused this Amendment No. 2 to
Rights Agreement to be duly executed as of the day and year first above written.

ATTEST                                SPX CORPORATION

By /s/ Christopher J. Kearney         By /s/ John B. Blystone
   ----------------------------          ---------------------------------
Title:   Secretary                    Title:     Chairman, President and
                                                 Chief Executive Officer

ATTEST                                EQUISERVE TRUST COMPANY, N.A.

By /s/ Kathleen M. Voss               By /s/ John H. Ruocco
  -----------------------------          ----------------------------------
Title: Customer Service Manager       Title: Senior Account Manager

                                      -3-

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