Fw: Re: [KYHAM] Why CW

[Bill L. Fuqua]

I will try this again. I think the email program sent my first reply before=
 I had finished.=20

Have you ever asked why CW is permitted anywhere on all the HF bands while =
the other modes are not? Except for the  very strange 5MHz band.=20

It is because that when a ham is communicating in another mode, lets say vo=
ice, and the propagation changes or QRM appears he can use CW to continue=
 to communicate and complete the QSO or communicate another frequency to =
QSY to.=20

CW is the narrowest bandwidth mode of communication used in amateur radio t=
oday. Even narrower than PSK31 and does not require a computer. The human=
 ear has a frequency resolution of about 10 Hz in its  most sensitive fre=
quency range (400 to 1000Hz). Experienced CW operators in WW2 were able t=
o receive and copy weak signals using receivers that were, as bandwidth g=
oes, as wide as a barn door by today standards. A good example is the ARC=
5 receiver which on 7 MHz was wider than 15KHz even in CW mode.=20
   And Morse Code is not hard to learn. The biggest problem is that most pe=
ople learn it the wrong way. That is why it is very helpful to attend a c=
lass. 

73
Bill wa4lav