CC75-64
                                                         
             NOTE FROM THE EDITOR OF COHERENT CW NEWSLETTER
             
  Coherent CW is a method of sending and receiving Morse code
with  equipment which allows the frequency, pulse length and
pulse phase  of the transmitted signal to be accurately known
andreceiving equipment during demodulation. The resultbandwidth
of only a few cycles for CCW which resultsimprovement in signal
to noise ration as compared toordinary communication practice.zss
CCW stations have now been built by Ray Petit, Andy McCaskey,
andChas. Woodson. Several others are under construction. The
purposeof the Newsletter is to exchange ideas, designs and
informationwhich facilitates the further development of CCW.- r   
                                                   used by the    
                                                  is a receiver   
                                                   in over 20 dB  
                                                    current       
                                                                  
                                     Issues of CCWN are put out
irregularly. A total of about 60 pages  a year is anticipated.
The pages are numbered consecutively.  Subscribers who are
missing any pages should drop a self addressed  envelop with a
note to the Editor and the missing ones will be  sent to you.
When and if pages are revised, they will be sent to  current
subscription holders and will indicate under the page  number the
date of the revision.    The following are available from CCWN.   
   1. CCWN for 1975, pages 75:1 to 75:64, $5 postpaid.         
2. Subscription for 1976 CCWN, $5 postpaid.          3.
Subscription for 1977 CCWN, $10 postpaid.          4. By sending
a self addressed stamped envelop one may receive        a current
copy of this memo.         All subscriptions to CCWN are
considered to be for an entire year and begin and end with the
calendar year. We prefer payment in US Dollars or Japanese Yen.
We can accept cash payments in any currency or IRC's.  Address:
Chas. Woodson, W6NEY            Editor, Coherent CW Newsletter    
       2301 Oak Street            Berkeley, CA 94708  Printed
circuit boards for the Petit CCW Filter (CCWN 75:17) are
available for $10 post-paid from Ray Petit, Box 51, Oak Harbor,
WA 98277. A major parts kit which includes the board is also
available for $45 Post-paid.