Document:

Second Amendment to Rights Agreement

 Exhibit 4.1 
 SECOND AMENDMENT TO RIGHTS AGREEMENT 
 THIS SECOND AMENDMENT TO RIGHTS AGREEMENT is made as of
this 29th day of September, 2006, to amend the Rights Agreement dated as of June 1, 2001, between Powerwave
Technologies, Inc., a Delaware corporation (the “Company”) and U.S. Stock Transfer Corporation (the “Rights Agent”). All capitalized terms not defined herein shall have the meanings ascribed to them in the Rights
Agreement. 
 WHEREAS, the Company and the Rights Agent are parties to a Rights Agreement dated as of June 1, 2001 as amended by the
First Amendment to Rights Agreement dated June 19, 2003 (the “Rights Agreement”); 
 WHEREAS, no Person has become an
Acquiring Person; 
 WHEREAS, the Board of Directors has determined that it is in the best interests of the stockholders of the Company that
the Rights Agreement be amended as set forth below and has directed that this Second Amendment be adopted by resolution approved on June 4, 2006; and 
 WHEREAS, Section 27 of the Rights Agreement provides that the Company and the Rights Agent shall, if the Company so directs, amend any provision of the Rights Agreement without the approval of holders of Common
Stock. 
 NOW, THEREFORE, the parties agree to amend the Rights Agreement as follows: 
 1. The definition of “Acquiring Person” set forth in Section 1(a) of the Rights Agreement shall be amended and restated in its entirety to
read as follows (with the changes indicated in bold): 
 “(a) ‘Acquiring Person’ shall mean any Person who or which, together
with all Affiliates and Associates of such Person, shall be the Beneficial Owner of 15% or more of the Common Shares of the Company then outstanding, but shall not include the Company, any Subsidiary of the Company, any employee benefit plan of the
Company or any Subsidiary of the Company, or any entity holding Common Shares for or pursuant to the terms of any such plan. Notwithstanding the foregoing, (i) no Person shall become an ‘Acquiring Person’ as the result of (A) an
acquisition of Common Shares by the Company which, by reducing the number of Common Shares of the Company outstanding, increases the proportionate number of Common Shares of the Company beneficially owned by such Person to 15% or more of the Common
Shares of the Company then outstanding; provided, however, that, if a Person shall become the Beneficial Owner of 15% or more of the Common Shares of the Company then outstanding by reason of share purchases by the Company and shall, after such
share purchases by the Company, become the Beneficial Owner of any additional Common Shares of the Company, then such Person shall be deemed to be an ‘Acquiring Person’ or (B) unless otherwise determined by the Board of Directors of
the Company prior to such purchase, the purchase of Common Shares (or securities convertible into Common Shares) by a Person for the purpose of effecting an 

 
offering of such Common Shares (or securities convertible into Common Shares) for, or on behalf of, the Company, including, without limitation an offering
which qualifies under Rule 144A of the Securities Act of 1933, as amended and (ii) Filtronic, plc, a company registered in England and Wales (“Filtronic”) shall not become an ‘Acquiring Person’ as the result of (A) its
(or its Affiliates) acquisition of Common Shares (or securities convertible into Common Shares) pursuant to that certain Agreement relating to the sale and purchase of the whole of the issued share capital of Filtronic (Overseas Holdings) Limited
and the business and assets of Filtronic Comtek (UK) Limited entered into by and among Filtronic, Filtronic Comtek (UK) Limited, a company registered in England and Wales and Powerwave Technologies, Inc., a Delaware corporation dated June 12,
2006 (the “Filtronic Purchase Agreement”) or (B) its (or its Affiliates) acquisition of additional Common Shares other than pursuant to the Filtronic Purchase Agreement if, upon acquisition of such additional Common Shares, Filtronic
and its Affiliates are not then collectively the holder of 15% or more of the Common Shares then outstanding (including any remaining Common Shares acquired pursuant to the Filtronic Purchase Agreement). Notwithstanding the foregoing, if the Board
of Directors of the Company determines in good faith that a Person who would otherwise be an ‘Acquiring Person,’ as defined pursuant to the foregoing provisions of this paragraph (a), has become such inadvertently (including, without
limitation, because such Person was unaware that it beneficially owned a percentage of Common Shares that would otherwise cause such Person to be an “Acquiring Person” or such Person was aware of the extent of its Beneficial Ownership of
Common Shares but had no actual knowledge of the consequences of such Beneficial Ownership under this Agreement), and without any intention of changing or influencing control of the Company and such Person divests as promptly as practicable a
sufficient number of Common Shares so that such Person would no longer be an ‘Acquiring Person,’ as defined pursuant to the foregoing provisions of this paragraph (a), then such Person shall not be deemed to be an ‘Acquiring
Person’ for any purposes of this Agreement.” 
 2. Except as set forth herein, the Rights Agreement shall remain in full force and
effect, and terms not otherwise defined herein shall have the meanings ascribed to them in the Rights Agreement. 
 [Signature Page Follows]

 IN WITNESS WHEREOF, the parties hereto have caused this Amendment to be duly executed as of the date and
year first above written. 
  

					
	 POWERWAVE TECHNOLOGIES, INC.,
 a Delaware corporation

		
	 By:
	 	/s/ Kevin T. Michaels
		 	 Name:
	 	 Kevin T. Michaels

		 	 Title:
	 	 Chief Financial Officer

	
	U.S. STOCK TRANSFER CORPORATION
		
	 By:
	 	/s/ Bridget Barela
		 	 Name:
	 	 Bridget Barela

		 	 Title:
	 	 Assistant Vice PresidentEighth Supplemantal Indenture dated as of September 29, 2006

Table of Contents

 Exhibit 4.3 
 Execution Copy 
  

 América Móvil, S.A. de C.V., 
 as Issuer, 
 Radiomóvil Dipsa, S.A. de C.V., 
 as
Guarantor, 
 and 
 JPMorgan
Chase Bank, N.A., 
 as Trustee 
  

 EIGHTH SUPPLEMENTAL INDENTURE 
 Dated as of September 29, 2006  
  

Table of Contents

 
TABLE OF CONTENTS 
  

					
	 	 	 	  	Page
	 
ARTICLE ONE DEFINITIONS 
	  	1
			
	 Section 101.
	 	 
Provisions of the Base Indenture. 
	  	1
	 Section 102.
	 	 
Definitions. 
	  	2
		
	 
ARTICLE TWO AMENDMENTS TO THE BASE INDENTURE 
	  	2
			
	 Section 201.
	 	 
Right of Redemption 
	  	2
	 Section 202.
	 	 
Form of Reverse of Security 
	  	3
		
	 
ARTICLE THREE MISCELLANEOUS PROVISIONS 
	  	3
			
	 Section 301.
	 	 
Separability of Invalid Provisions 
	  	3
	 Section 302.
	 	 
Execution in Counterparts 
	  	3
	 Section 303.
	 	 
Certain Matters 
	  	3

Table of Contents

 EIGHTH SUPPLEMENTAL INDENTURE, dated as of September 29, 2006, among América Móvil,
S.A. de C.V., a sociedad anónima de capital variable organized and existing under the laws of the United Mexican States (“Mexico”) (herein called the “Company”), having its principal office at Lago
Alberto 366, Edificio Telcel I, Piso 2, Colonia Anáhuac, 11320, Mexico, D.F., Mexico, Radiomóvil Dipsa, S.A. de C.V., a sociedad anónima de capital variable organized and existing under the laws of Mexico (herein called
the “Guarantor”), having its principal office at Lago Alberto 366, Edificio Telcel I, Piso 2, Colonia Anáhuac, 11320, Mexico, D.F., Mexico, and JPMorgan Chase Bank, N.A. (as successor to JPMorgan Chase Bank), a national
banking association duly organized and existing under the laws of the United States of America, as Trustee (herein called the “Trustee”), to the Indenture, dated as of March 9, 2004, among the Company, the Guarantor and the
Trustee (as amended and supplemented by the Fifth Supplemental Indenture (as defined below), herein called the “Base Indenture”). 
 W I T N E S S E T H: 
 WHEREAS, Section 901(5) of the Base Indenture provides that the Company and the Guarantor, when
authorized by a Board Resolution (as defined in the Base Indenture), and the Trustee may enter into a supplemental indenture to the Base Indenture, without the consent of any Holders, in order to change any of the provisions of the Base Indenture in
respect of one or more series of Securities, provided that such change shall neither (i) apply to any Security of any series created prior to the execution of such supplemental indenture and entitled to the benefit of such provision nor
(ii) modify the rights of the Holder of any such Security with respect to such provision; 
 WHEREAS, the Company desires by this Eighth
Supplemental Indenture to revise the provisions of Section 1201(c) (Right of Redemption) and Section 203 (Form of Reverse of Security) of the Base Indenture to reduce the rate of withholding tax that would trigger the
Company’s right to redeem Securities at its election from 10% to 4.9%, provided that, in accordance with Section 901(5) of the Base Indenture, such revisions shall not apply to any Security of any series created prior to the
execution of this Eighth Supplemental Indenture; 
 WHEREAS, the Company has duly authorized the execution and delivery of this Eighth
Supplemental Indenture; 
 WHEREAS, the Guarantor has duly authorized the execution and delivery of this Eighth Supplemental Indenture; and

 WHEREAS, all things necessary to make this Eighth Supplemental Indenture a valid agreement of the Company and the Guarantor, in accordance
with its terms, have been done. 
 NOW, THEREFORE, for and in consideration of the premises, the Company and the Guarantor covenant and agree
with the Trustee as follows: 
 
ARTICLE ONE 
 DEFINITIONS 
 
Section 101. Provisions of the Base Indenture. 
 Except insofar as herein otherwise expressly
provided, all the definitions, provisions, terms and conditions of the Base Indenture shall remain in full force and effect. The Base Indenture, as amended and supplemented by, inter alia, the Fifth Supplemental Indenture, dated as of
December 14, 2004 (the “Fifth Supplemental Indenture”), and as further amended and supplemented by this Eighth 

Table of Contents

 
Supplemental Indenture, is in all respects ratified and confirmed, and the Base Indenture, the Fifth Supplemental Indenture and this Eighth Supplemental
Indenture shall be read, taken and considered as one and the same instrument for all purposes for each Security of each series created after the date hereof and every Holder of Securities of a series created after the date hereof and authenticated
and delivered under the Base Indenture shall be bound thereby. 
 
Section 102. Definitions. 
 For all purposes of this Eighth Supplemental Indenture, except as
otherwise expressly provided or unless the subject matter or context otherwise requires: 
 (a) any reference to an “Article” or a
“Section” refers to an Article or Section, as the case may be, of this Eighth Supplemental Indenture; 
 (b) the words
“herein”, “hereof” and “hereunder” and other words of similar import refer to this Eighth Supplemental Indenture as a whole and not to any particular Article, Section or other subdivision; and 
 (c) all terms used in this Eighth Supplemental Indenture that are defined in the Base Indenture have the meanings assigned to them in the Base Indenture,
except as otherwise provided in this Eighth Supplemental Indenture. 
 
ARTICLE TWO 
 AMENDMENTS TO THE BASE INDENTURE 
 
Section 201. Right of Redemption 
 Pursuant to Section 901(5) of the Base Indenture,
Section 1201(c) of the Base Indenture is hereby amended for each Security created after the date hereof by deleting the paragraph in its entirety and substituting the following therefor: 
 If, as a result of any amendment to, or change in, the laws (or any rules or regulation thereunder) of Mexico or any political subdivision
or taxing authority thereof or therein affecting taxation or any amendment to or change in an official interpretation or application of such laws, rules or regulations, which amendment or change of such laws, rules or regulations becomes effective
on or after the date of this Indenture, the Company would be obligated to pay on the next succeeding Interest Payment Date Additional Amounts in respect of interest payments on the Securities of any series pursuant to the terms and conditions
thereof in excess of those attributable to the Mexican withholding tax on the basis of a statutory rate of 4.9% imposed on interest payments with respect to such series of Securities, and if such obligation cannot be avoided by the Company after
taking measures the Company considers reasonable to avoid it, then, at the Company’s option, the Securities of such series may be redeemed in whole, but not in part, at any time, on giving not less than 30 nor more than 60 days’ notice to
the Trustee and the Holders of such Securities, at a Redemption Price equal to 100% of the principal amount thereof and any premium applicable thereto, together with accrued interest up to but not including the Redemption Date and any Additional
Amounts which would otherwise be payable; provided, however, that (1) no notice of such redemption may be given earlier than 90 days prior to the earliest date on which the Company would but for such redemption be obligated to pay such
Additional Amounts were a payment on such Securities then due, and (2) at the time such notice is given, such obligation to pay such Additional Amounts remains in effect. 
  

 2 

Table of Contents

 
Section 202. Form of Reverse of Security 
 Pursuant to Section 901(5) of the Base Indenture,
Section 203 of the Base Indenture is hereby amended for each Security created after the date hereof by deleting the paragraph pertaining to redemption at the election of the Company if the Company is required to pay increased Additional Amounts
and substituting the following therefor: 
 The Securities are subject to redemption upon not less than 30 nor more than 60
days’ notice by mail, at any time, as a whole but not in part, at the election of the Company, at a cash price equal to the sum of (i) the principal amount of the Securities being redeemed, (ii) any accrued original issue discount
thereon to the date fixed for redemption, (iii) accrued and unpaid current interest thereon to the date fixed for redemption, (iv) any premium applicable in the case of redemption prior to Maturity, and (v) any Additional Amounts (as
defined in the Indenture) which would otherwise be payable, if, as a result of any amendment to, or change in, the laws (or any laws, rules, or regulations thereunder) of Mexico or any political subdivision or taxing authority thereof or therein
affecting taxation or any amendment to or change in an official interpretation, administration or application of such laws, rules, or regulations (including a holding by a court of competent jurisdiction), which amendment or change of such laws,
rules, or regulations becomes effective on or after the date of the Indenture, the Company would be obligated, after making reasonable endeavors to avoid such requirement, to pay Additional Amounts in excess of the Additional Amounts that the
Company would be obligated to pay if payments made on the Securities were subject to withholding or deduction of Mexican Taxes at the rate of 4.9%. 
 
ARTICLE THREE 
 MISCELLANEOUS PROVISIONS 
 
Section 301. Separability of Invalid Provisions 
 In case any one or more of the provisions contained
in this Eighth Supplemental Indenture should be invalid, illegal or unenforceable in any respect, such invalidity, illegality or unenforceability shall not affect any other provisions contained in this Eighth Supplemental Indenture, and to the
extent and only to the extent that any such provision is invalid, illegal or unenforceable, this Eighth Supplemental Indenture shall be construed as if such provision had never been contained herein. 
 
Section 302. Execution in Counterparts 
 This Eighth Supplemental Indenture may be simultaneously
executed and delivered in any number of counterparts, each of which when so executed and delivered shall be deemed to be an original, and such counterparts shall together constitute but one and the same instrument. 
 
Section 303. Certain Matters 
 The Trustee shall not be responsible in any manner whatsoever for or
in respect of the validity or sufficiency of this Eighth Supplemental Indenture or for or in respect of the recitals contained herein, all of which are made solely by the Company and the Guarantor. 
  

 3 

Table of Contents

 IN WITNESS WHEREOF, the parties hereto have caused this Eighth Supplemental Indenture to be duly executed
on their respective behalves, all as of the day and year first written above. 
  

			
	AMÉRICA MÓVIL, S.A. DE C.V.,
	    as Issuer
		
	By:	 	 /s/ Daniel Hajj Aboumrad

	Name:	 	Daniel Hajj Aboumrad
	Title:	 	Attorney-in-Fact
		
	By:	 	 /s/ Alejandro Cantú Jiménez

	Name:	 	Alejandro Cantú Jiménez
	Title:	 	Attorney-in-Fact
	
	 RADIOMÓVIL DIPSA, S.A. DE C.V.,
     as Guarantor

		
	By:	 	 /s/ Daniel Hajj Aboumrad

	Name:	 	Daniel Hajj Aboumrad
	Title:	 	Attorney-in-Fact
		
	By:	 	 /s/ Alejandro Cantú Jiménez

	Name:	 	Alejandro Cantú Jiménez
	Title:	 	Attorney-in-Fact
	
	 JPMORGAN CHASE BANK, N.A.
     as Trustee

		
	By:	 	 /s/ Karen Ferry

	Name:	 	Karen Ferry
	Title:	 	Vice President

  

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