(Revised September 1980)
CCWN 77:108



Woodson. Coherent cw

(list of figures)

part 1

1.Elements of ccw communication over time.

2.Block diagram of ccw filter

3.Desired signal considered as a phasor

4.Filter response curve

5.Comparison of filter response curves

6.Proportion copy of a signal by cw and ccw methods



part 2

1.1 MHz frequency standard for ccw station

2.Simple ccw hand keyer

3.Exciter-transmitter, CCWT-3

4.PLL for stabilizing VFO

5.Block diagram of W6NEY transmitter

6.Block diagram of W6NEY receiver

7.Coherent cw filter

8.Frame reference for ccw filter

9.Digital mixer for generating audio output

10Logical diagram of computerized ccw filter