[Elecraft] 60 Meters for dummies - K3 Version

[Richard Ferch]

Mike,

A couple of corrections:

1. In CW, the K3 normally uses LSB. CW-REV is USB. This makes no 
difference to the recommendation (in CW or CW-REV, just tune the K3's 
dial to the channel center).

2. In RTTY using either FSK D or AFSK A, the K3's dial displays the RTTY 
Mark frequency (the higher of the two transmitted frequencies). 
Therefore, for an RTTY signal to be exactly centered in the channel, the 
K3's dial should be set 85 Hz above the channel center frequency in 
these two modes. Just as for CW sidetone, the choice of audio tone pairs 
is immaterial in either FSK D or AFSK A, provided the software (or TU) 
and the radio are both set to use the same tones.

Using DATA A, on the other hand, the dial displays the suppressed 
carrier frequency (DATA A is USB). One way to send AFSK RTTY on the 
channel center using DATA A would be to set the K3's dial to the channel 
carrier frequency and the audio RTTY tones to 1415/1585 Hz ("Reverse" 
for MMTTY users, since MMTTY assumes the radio is in LSB). This is not 
one of the standard tone pairs that MMTTY provides, so MMTTY users would 
have to enter a "custom" Mark frequency of 1415 Hz.

Alternatively, if they wanted to use a standard audio tone pair, users 
would have to work out the correct dial setting for each channel 
depending on which tone pair and sideband (DATA A = USB, DATA A-REV = 
LSB) they preferred to use.

73,
Rich VE3KI