As filed with the Securities and Exchange Commission on December 20, 1999

                                               Registration No. 333-92591______
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                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549


                         Post Effective Amendment No. 1


                                    FORM S-3
                          REGISTRATION STATEMENT UNDER
                           THE SECURITIES ACT OF 1933

                          WAVERIDER COMMUNICATIONS INC.
             ------------------------------------------------------
             (Exact name of registrant as specified in its Charter)

            Nevada                                           33-0264030
- - -------------------------------                 -------------------------------
(State or other jurisdiction of                 (I.R.S. Employer Identification
 incorporation or organization)                                Number)


255 Consumers Road, Suite 500 Toronto, Ontario Canada M2J 1R4    (416) 502-3200
- - -------------------------------------------------------------------------------
              (Address, including zip code, and telephone number,
              including area code, of principal executive offices)

                              T. SCOTT WORTHINGTON
         255 Consumers Road, Suite 500, Toronto, Ontario Canada M2J 1R4
                 (416) 502-3200 / Facsimile No.: (416) 502-2968
- - -------------------------------------------------------------------------------
            (Name, address, including zip code, and telephone number,
                   including area code, of agent for service)

                        Copies of all communications to:
                             DAVID A. BROADWIN, ESQ.
                             FOLEY, HOAG & ELIOT LLP
            One Post Office Square, Boston, Massachusetts 02109-2170
                 (617) 832-1000 / Facsimile No.: (617) 832-7000

     Approximate date of commencement of proposed sale to the public: As soon as
practicable  from  time  to  time  after  the  Registration   Statement  becomes
effective.
     If any of the securities being registered on this Form are to be offered on
a delayed or continuous  basis  pursuant to Rule 415 under the Securities Act of
1933, check the following box. |X|
     If this Form is filed to  register  additional  securities  for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list  the  Securities  Act  registration  statement  number  of the  earlier
effective registration statement for the same offering. |_|
     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(c)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. |_|
     If this Form is a  post-effective  amendment  filed pursuant to Rule 462(d)
under the  Securities  Act,  check the following box and list the Securities Act
registration  statement number of the earlier effective  registration  statement
for the same offering. |_|
     If delivery of the  prospectus is expected to be made pursuant to Rule 434,
please check the following box. |_|


                         CALCULATION OF REGISTRATION FEE

                                                                         Proposed        Proposed
                                                                          Maximum         maximum        Amount of
             Title of each class of                 Amount to be       offering price    aggregate     registration
           Securities to be registered               Registered          per share       offering           fee
 ------------------------------------------------------------------------------------------------------------------
                                                                                           
 Common Stock, $.001 par value (1)                    12,157,777         $1.66 (2)       $20,181,909
 Warrants to purchase 3,925,925 shares of
    Common Stock (3)                                   3,925,925           $0.05            $196,296
 Underwriter's Warrants                                  444,444           $0.01              $4,444
 Total                                                                                   $20,382,649     $5,675 (4)


(1)  Includes  4,370,370  shares of  Common  Stock  issuable  upon  exercise  of
     Warrants  and  Underwriters'  Warrants  and 380,000  shares of Common Stock
     issuable upon exercise of Warrants by certain selling shareholders.
(2)  Estimated solely for the purposes of determining the  registration  fee. In
     accordance  with Rule 457(c) under the  Securities  Act of 1933,  the above
     calculation  is based on the closing bid price reported on the OTC Bulletin
     Board on December 8, 1999
(3)  Includes 222,222 warrants issuable upon exercise of Underwriters' Warrants.
(4)  $6,960,000  of  shares  of  Common  Stock  was  previously   registered  on
     Registration  Statement  No.  333-86251,  and a fee of  $1,935  was paid in
     connection therewith.
     In  accordance  with  Rule 416  under  the  Securities  Act of  1933,  this
Registration  Statement  also covers  such  indeterminate  number of  additional
shares of WaveRider's common stock,  $0.001 par value, as may become issuable to
prevent  dilution  resulting  from  stock  splits,  stock  dividends  or similar
transactions as set forth in WaveRider's Articles of Incorporation and the terms
of the warrants referred to above.






This  Amendment is filed under Rule 462(d) to amend Part II of the  Registration
Statement solely to add certain exhibits.

                                    PART II
Item 16. Exhibits

Exhibit
No.      Description

3.1      Articles of  Incorporation  of WaveRider,  incorporated by reference to
         Exhibit 3.1 registration statement on Form S-18, File no. 33-25889-LA.

3.2      Bylaws of the Company,  incorporated by reference to Exhibit 3.2 to the
         annual report on Form 10-KSB for the year ended December 31, 1996.

3.3      Certificate  of  Amendment  to the  Articles  of  Incorporation  of the
         Company filed with the Nevada  Secretary of State on October 8th, 1993,
         incorporated  by  reference to Exhibit 3.3 to the  quarterly  report on
         Form 10-QSB for the period ended September 30th, 1994.

3.4      Certificate  of  Amendment  to the  Articles  of  Incorporation  of the
         Company filed with the Nevada Secretary of State on October 25th, 1993,
         incorporated by reference to Exhibit 2(d) to the registration statement
         on Form 8-A, File No. 0-25680.

3.5      Certificate of Amendment to the Articles of  Incorporation of WaveRider
         filed  with  the  Nevada  Secretary  of  State  on  March  25th,  1995,
         incorporated by reference to Exhibit 2(e) to registration  statement on
         Form 8-A, File no. 0-25680.

3.6      Certificate  of  Amendment  to the  Articles  of  Incorporation  of the
         Company,  designating the Series A Voting Convertible  Preferred Stock,
         filed  with  the  Nevada  Secretary  of  State  on  March  24th,  1997,
         incorporated  by  reference  to Exhibit  3.6 on Form 10KSB for the year
         ended December 31, 1996.

3.7      Certificate  of  Amendment  to the  Articles  of  Incorporation  of the
         Company  designating the Series B Voting  Convertible  Preferred Stock,
         filed with the Nevada Secretary of State on May 16, 1997.

3.8      Certificate  of Amendment to the  Memorandum of WaveRider  changing the
         name to WaveRider  Communications Inc., filed with the Nevada Secretary
         of State on May 27, 1997.

4.1      Specimen common stock certificate, incorporated by reference to Exhibit
         4.1 to registration statement on Form S-18, File no. 33-25889-LA.

4.2      Specimen   Class  A  Common   Stock   Purchase   Warrant   Certificate,
         incorporated  by  reference  to Exhibit  4.2 on Form 10KSB for the year
         ended December 31, 1996.

4.3      Specimen   Class  B  Common   Stock   Purchase   Warrant   Certificate,
         incorporated  by  reference  to Exhibit  4.3 on Form 10KSB for the year
         ended December 31, 1996.

4.4      Specimen   Class  C  Common   Stock   Purchase   Warrant   Certificate,
         incorporated  by  reference  to Exhibit  4.4 on Form 10KSB for the year
         ended December 31, 1996.

4.5      Specimen   Class  D  Common   Stock   Purchase   Warrant   Certificate,
         incorporated  by  reference  to Exhibit  4.5 on Form 10KSB for the year
         ended December 31, 1996.



4.6      Warrant Terms dated February 10th, 1997, relating to the Class A, Class
         B, Class C and Class D, Common Stock Purchase Warrants, incorporated by
         reference to Exhibit 4.6 on Form 10KSB for the year ended  December 31,
         1996.

4.7      Warrant  Terms  dated  April 15,  1998,  relating to the Class E Common
         Stock Purchase  Warrants,  incorporated  by reference to Exhibit 4.7 on
         Form 10KSB for the year ended December 31, 1998.

4.8      Warrant Terms dated June 11, 1998, relating to the Class F Common Stock
         Purchase  Warrants,  incorporated  by  reference to Exhibit 4.8 on Form
         10KSB for the year ended December 31, 1998.

4.9      Warrant Terms dated  December 15, 1998,  relating to the Class G Common
         Stock Purchase  Warrants,  incorporated  by reference to Exhibit 4.9 on
         Form 10KSB for the year ended December 31, 1998.

4.10     Warrant  Terms dated  December 29,  1998,  relating to the Common Stock
         Purchase  Warrants,  incorporated  by reference to Exhibit 4.10 on Form
         10KSB for the year ended December 31, 1998.

4.11     Warrant Terms dated June 30, 1999, relating to the Class H Common Stock
         Purchase  Warrants,  incorporated  by reference to Exhibit 4.11 on Form
         S-3, File No. 333-82855.

4.12     Warrant  Terms dated  October 18,  1999,  relating to the Common  Stock
         Purchase  Warrants,  incorporated by reference to Exhibit 10.1 and 10.2
         in Form 10-Q for the quarter ended September 30, 1999.

4.13     Specimen Common Stock Purchase Warrant Certificate

4.14     Specimen Underwriters' Warrant Certificate

5.1      Opinion of Foley, Hoag & Eliot LLP.

10.1     Agreement  dated  February 2nd,  1997,  between Ray Hoag and WaveRider,
         incorporated  by  reference  to Exhibit 10.2 on Form 10KSB for the year
         ended December 31, 1996.

10.2     Agreement  dated  February  2nd,  1997,  between C.  Jeremy  Renton and
         WaveRider, incorporated by reference to Exhibit 10.21 on Form 10KSB for
         the year ended December 31, 1996.

10.3     Stock Option  Agreement dated January 22nd, 1997 between  WaveRider and
         Charlie  Rodriguez,  incorporated by reference to Exhibit 10.22 on Form
         10KSB for the year ended December 31, 1996.

10.4     Stock Option  Agreement dated January 22nd, 1997 between  WaveRider and
         C. Jeremy  Renton,  incorporated  by reference to Exhibit 10.23 on Form
         10KSB for the year ended December 31, 1996.

10.5     Stock Option Agreement dated January 22nd, 1997,  between WaveRider and
         Ray Hoag,  incorporated by reference to Exhibit 10.24 on Form 10KSB for
         the year ended December 31, 1996.




10.6     Share  Exchange  Agreement  executed the 13th day of May,  1997 between
         WaveRider and the shareholders of Major Wireless  Communications  Inc.,
         ("Major Wireless"),  with respect to the purchase by the Company of all
         the  issued  and  outstanding  shares  in the  capital  stock  of Major
         Wireless,  incorporated  by  reference to Exhibit 2.1 in Form 8-K filed
         May 29, 1997.

10.7     Agreement  supplemental  to the Share Exchange  Agreement  executed the
         13th day of May,  1997 (see 10.6 supra)  incorporated  by  reference to
         Exhibit 10.1 in Form 8-K filed May 29, 1997.

10.8     Employee Stock  Compensation  (1997) Plan  incorporated by reference to
         Exhibit 99 in Form S-8 filed August 29th, 1997.

10.9     Employee Stock Option (1997) Plan  incorporated by reference to Exhibit
         99 in Form S-8 filed August 29th, 1997.

10.10    Employment  Agreement  between  WaveRider and D. Bruce  Sinclair  dated
         November 18, 1997  incorporated as Exhibit 10.10 to WaveRider's  annual
         report on Form 10-KSB, for the year ended December 31, 1997.

10.11    Convertible  Debenture  Agreement  between  WaveRider and International
         Advisory  Services Ltd. and Wyndel  Consulting  Ltd. Dated December 15,
         1998,  incorporated by reference to Exhibit 10.11 of Form S-3, File No.
         333-70821.

10.12    Letter of termination of the  Convertible  Debenture  Agreement,  dated
         January 8, 1999,  incorporated  by reference  to Exhibit  10.11 of Form
         S-3, File No. 333-70821.

10.13    Common  Stock  Purchase   Agreement  between  WaveRider  and  Sovereign
         Partners LP and Canadian Advantage Limited Partnership,  dated December
         31, 1998,  including the exhibits to such  agreement,  incorporated  by
         reference to Exhibit 10.13 on Form S-3, File No. 333-70821.

10.14    Amendment to the Common Stock Purchase  Agreement between WaveRider and
         Sovereign Partners LP and Canadian Advantage Limited Partnership, dated
         June 14, 1999,  incorporated by reference to Exhibit 10.14 on Form S-3,
         File No. 333-82855.

10.15    Merger Agreement  between WaveRider  Communications  Inc and TTI Merger
         Inc and Transformation Techniques, Inc. and Peter Bonk, incorporated by
         reference to Exhibit 10.1 in Form 8-K filed June 30, 1999.

10.16    Employment   agreement   between   Mr.   Peter   Bonk   and   WaveRider
         Communications  (USA)  Inc.,  dated  June  11,  1999,  incorporated  by
         reference to Exhibit 10.2 in Form 8-K filed June 30, 1999.

10.17    Loan  Agreement   between  WaveRider   Communications   Inc.  and  AMRO
         International,  S.A. dated October 15, 1999,  incorporated by reference
         to Exhibit 10.1 in Form 10-Q for the quarter ended September 30, 1999.

10.18    Common Stock Purchase Agreement between WaveRider  Communications  Inc.
         and Radyr Group  Investments  dated October 18, 1999,  incorporated  by
         reference to Exhibit 10.2 in Form 10-Q for the quarter ended  September
         30, 1999.




10.19    Underwriting Agreement between WaveRider Communications Inc. and Groome
         Capital.com Inc. dated December 17, 1999.


23.2     Consent of Johnson, Holscher & Company P.C., independent auditors.

23.3     Consent of PricewaterhouseCoopers LLP, independent accountants.

23.4     Consent  of  Foley,  Hoag & Eliot LLP  (included  in last  sentence  of
         Exhibit 5.1).

24.1     Power of Attorney (contained in the signature page).


                                   SIGNATURES

         In accordance with the  requirements of the Securities Act of 1933, the
Registrant  certifies that it has reasonable grounds to believe it meets all the
requirements of filing on Form S-3 and authorized this Registration Statement to
be signed on its  behalf  by the  undersigned,  thereunto  duly  authorized,  on
December 20, 1999.

                          WAVERIDER COMMUNICATIONS INC.

                                         By:  /s/ D. Bruce Sinclair
                                              D. Bruce Sinclair, President and
                                              Chief Executive Officer

         In accordance with the requirements of the Securities Act of 1933, this
registration  statement  has  been  signed  by  the  following  persons  in  the
capacities indicated on December 20, 1999.



         Signature           Title                                       Date
- - -------------------------    ------------------------------------------  -----------------
                                                                  
/s/ D. Bruce Sinclair____    President, Chief Executive Officer          December 20, 1999
D. Bruce Sinclair            (Principal Executive Officer) and Director

_____________________        Secretary/Director                          December 20, 1999
Cameron A. Mingay*

_____________________        Director                                    December 20, 1999
Gerry Chastelet*


_____________________        Director                                    December 20, 1999
John Curry*

_____________________        Director                                    December 20, 1999
Guthrie Stewart*

_____________________        Director                                    December 20, 1999
Dennis R. Wing*


                           * By D. Bruce Sinclair - Attorney in fact



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