My most important recent contribution to Amateur Radio is the development of the Copyability Strength signal reporting system called CS. Here it is:

CS Copyability Strength Summary

C or Copyability Scale

N = no discernible signal*

Ø = discernible but not copyable*

1 = 10 % copy

2 = 20 % copy

3 = 30 % copy

4 = 40 % copy

5 = 50 % copy

6 = 60 % copy

7 = 70 % copy

8 = 80 % copy

9 = 90 % copy

G = Good 100 % copy, but short of perfect

P = Perfect armchair 100 % copy or full-quieting on FM

S-Meter or Signal Strength Scale

Ø = no S-meter reading

1 = S-1

2 = S-2

3 = S-3

4 = S-4

5 = S-5

6 = S-6

7 = S-7

8 = S-8

9 = S-9

A = 10 dB over S-9

B = 20 dB over S-9

C = 30 dB over S-9

D = 40 dB over S-9

E = 50 dB over S-9

F = 60 dB or more over S-9

Optional Suffixes

C = Chirp or tail on make and/or break

K = Key clicks or other keying transients

O = Overmodulation or Overdeviation in phone or digital modes

R = AC Ripple or buzz in transmission

X = characteristic steadiness of crystal (Xtal) control

* For Copyability reports of N or Ø, no Signal Strength report is needed.

© 2012 Bruce Prior N7RR