EXHIBIT
        10.17

      


      Note:
        Portions of this exhibit indicated by [*] are subject to a confidential
        treatment request, and have been omitted from this exhibit. Complete, unredacted
        copies of this exhibit have been filed with the Securities and Exchange
        Commission as part of the Company’s confidential treatment
        request. 

       

      SUPPLEMENT
        TO PURCHASE CONTRACT (YZN/ACL-a14s1)

          This
        SUPPLEMENT TO PURCHASE CONTRACT (hereinafter called, “This SUPPLEMENT”) made and
        entered as of this 15th
        day of
        August, 2005, by and between YOZAN INC. (hereinafter called, “YOZAN”) of the
        city of Tokyo, Japan, and AIRSPAN COMMUNICATIONS, LTD. (hereinafter called,
        “ACL”) of the city of Uxbridge, U.K., witnesses the mutual agreements of the
        both parties herein contained in supplement and/or change PURCHASE CONTRACT
        (YZN/ACL-A14) made by the both parties as of 14th
        April,
        2005, (hereinafter called, “Original P/C”), which the parties hereto hereby
        agree as follows:

       

      
        	1.  	Regarding Article 3.-Item 3. of Original P/C,
                the unit
                price of Enclosure/Aux. for a Single


      

      
        	 	
                B/S
                  Product Set is US$[*].

              


      

      
        	 	 


      

      
        	2.  	
                Regarding
                  Article 4.-Item 3. of Original P/C, the purchase quantity of Enclosure
                  Aux. for Single B/S Products Set is [*]
                  units,
                  the Contract Price of which is US$[*].
                  In
                  this [*]
                  units,
                  the assortment of two types Enclosure/Aux. for Single B/S Products
                  Set,
                  the one is with GPS and the other is without GPS, is [*]
                  units and [*]
                  units respectively.

              


      

      
        	 	 


      

      
        	3.  	
                Regarding
                  Article 4.-Item 6. of Original P/C, the purchase quantity of EasyST
                  is
                  [*]
                  units
                  instead of [*]
                  units,
                  the Contract Price of which is US$[*]
                  instead
                  of US$[*]
                  (US$[*]
                  decrease).

              


      

      
        	 	 


      

      
        	4.  	
                Regarding
                  Article 4.-Item 7, of Original P/C, the purchase quantity of WiFi-AP
                  For
                  EasyST is [*]
                  units, the Contract Price of which is US$[*].

              


      

    

     

    
      
        

      

    

    
    

     

    

      
        	5.  	
                Regarding
                  Article 4.-Item 8. of Original P/C, the purchase quantity of Easy
                  ST Base
                  Unit is [*]
                  instead of [*]
                  units,
                  the Contract Price of which is [*]
                  instead of US$[*].
                  (US$[*]
                  decrease).

              


      

      
        	 	 


      

      
        	6.  	
                Regarding
                  Article 4.-Item 9. of Original P/C, the purchase quantity of ProST
                  is
                  [*]
                  units,
                  the Contract Price of which is US$[*].
                  This quantity is an aggregate of standard “ProST”s and “ProST-WiFi”s
                  (ProST to be integrated with WiFi-AP For ProST), while the latter
                  will be
                  [*]
                  units
                  as of the date herein above.

              


      

      
        	 	 


      

      
        	7.  	
                Regarding
                  Article 4.-Item 10. of Original P/C, the purchase quantity of WiFi-AP
                  For
                  ProST is [*]
                  units
                  the Contract Price of which is US$[*].
                  YOZAN has its optional right to additionally purchase up to [*]
                  units of this WiFi-AP For ProST if and when YOZAN notify ACL, by
                  the end
                  of September, 2005, in written form to execute this optional right
                  of
                  additional purchase.

              


      

      
        	 	 


      

      
        	8.  	
                YOZAN
                  shall additionally purchase from ACL [*]
                  units of each 3meters External Cabling finished for connection
                  MicroMAX-SDR to Radio-Transceivers. The unit price of this External
                  Cabling is US$[*],
                  the Contract Price of which is US$[*].

              


      

      
        	 	 


      

      
        	9.  	
                YOZAN
                  shall additionally purchase from ACL [*]
                  sets of GPS which shall be integrated into MicroMAX-SDR as a factory
                  built
                  option. The unit price of this GPS option is US$[*],
                  the Contract Price of which is US$[*].

              


      

      
        	 	 


      

      
        	10.  	
                YOZAN
                  shall additionally purchase from ACL [*]
                  units of 3m cable connecting GPS and its antenna. The unit price
                  of this
                  cable is US$[*],
                  the Contract Price of which is US$[*].

              


      

    

     

    
      
        
        

      

      
        
        

        
          

        

      

      
        
        

      

       

      

        
          	11.  	
                  YOZAN
                    shall additionally purchase from ACL [*]
                    units
                    of finished 3m cable connection two MicroMAX-SDRs for GPS operation.
                    The
                    unit price of this finished cable is US$[*],
                    the Contract Price of which is US$[*].

                


        

        
          	 	 


        

        
          	12.  	
                  Regarding
                    Article 3.-Item 11. of Original P/C, Carrier Sence S/W, the Contract
                    Price
                    is [*].

                


        

        
          	 	 


        

        
          	13.  	
                  YOZAN
                    shall additionally purchase from ACL [*]
                    sets
                    of the Outdoor PSU to be attached to ProST. The unit Price of
                    this Outdoor
                    PSU is US$[*],
                    the Contract Price of which is US$[*].
                    If YOZAN execute the aforesaid optional right of additionally
                    purchasing
                    WiFi-AP For ProST, the additional Outdoor PSU shall be purchased
                    by YOZAN
                    accordingly.

                


        

        
          	 	 


        

        
          	14.  	
                  ACL
                    shall discount US$[*]
                    from
                    the lump sum amount of the change in Grand Total of Contract
                    Price, which
                    is resulted from This SUPPLEMENT. After the above supplement,
                    change and
                    this discount, Grand Total of Contract Price mentioned in Article
                    4. of
                    Original P/C shall be US$16,667,940 instead of
                    US$9,816,000.

                


        

        
          	 	 


        

        
          	15.  	
                  Regarding
                    Article 6-Item 2. of Original P/C, Payment Terms for Down Payment
                    is
                    changed to “30% of the total Contract Price” instead of $15% of the total
                    Contract Price,” according to MINUTES OF MEETING made by the both parties
                    as of 15th
                    July, 2005. As a result, YOZAN shall pay US$2,055,582, to ACL
                    within two
                    weeks of This SUPPLEMENT. This is calculated as
                    follows:

                


        

      

       

       

      
        
          
          

        

        
          
          

          
            

          

        

        
          
          

        

      

    

    
      
        	
              


      

       

       

    

    
      
        
          	 	
                  The
                    total Contract Price of Original P/C

                	
                  US$9,816,000

                
	 	
                  The
                    Contract Price added by This SUPPLEMENT

                	
                  US$6,851,940

                
	 	 	
                  The
                    total Contract Price of the date

                	
                  US$16,667,940

                
	 	 	
                  The
                    Down Payment Amount (30% of the above)

                	
                  US$5,000,382

                
	 	 	
                  The
                    Down Payment is already paid

                	
                  US$2,944,800

                
	 	
                  The
                    Down Payment to be paid by This SUPPLEMENT

                	
                  US$2,055,582

                


        

      

      
      

       

      
        	16.  	
                Regarding
                  Article 6.-Item 4. of Original P/C, the payment to be made by YOZAN
                  to ACL
                  within two months after the corresponding Delivery is $35% of the
                  respective Contract Price” instead of “50% of the same,” according to
                  MINUTES OF MEETING made by the both parties as of 15th
                  July, 2005.

              


      

      
        	17.  	
                The
                  other part of Original P/C than mentioned herein above shall remain
                  unchanged.

              


      

       

      In
        witness whereof, each of the parties hereto has caused This SUPPLEMENT to
        be
        executed, in duplicate, each duplicate of which shall be considered as original,
        by its duly authorized officers or representatives.

      


      
        	
                YOZAN
                  INC.

                 

                (SIGNED)

                 

                  

                

                By
                  Sunao Takatori, President and CEO

              	 	
                AIRSPAN
                  COMMUNICATIONS LTD.

                 

                (SIGNED)

                 

                  

                

                By
                  Eric Stonestrom,
                  CEO