[Elecraft] K3: Question about data modes...

[Richard Ferch]

It's been quite a few years since I used MixW, but here goes:

1. Last time I tried it, MixW did not understand the K3's digital 
sub-modes. Basically it acted as if they were all the same (either FSK D 
or AFSK A), i.e. on LSB. Even when I put the rig in DATA A, MixW still 
acted as though the radio was in LSB.

2. If the waterfall is in Auto mode, MixW recognizes when the rig is in 
REV, and automatically adjusts its sideband to accommodate the switch. 
In other words, if it was on the wrong sideband without REV, after 
entering REV MixW automatically changes its sideband so it will still be 
on the wrong sideband. The solution to this is to take MixW out of Auto 
mode and force the waterfall to be in USB regardless of whether the 
radio is in REV or not.

3. One other problem is the frequency offset: in FSK D and AFSK A , the 
K3's dial displays the Mark frequency, whereas in DATA A it displays the 
suppressed carrier frequency. Therefore you may need to supply a 
frequency offset to get MixW to display the correct frequency.

My recollection was that I was able to configure MixW either to work 
correctly in AFSK A/FSK D, or in DATA A, but not in both, at least not 
without making configuration changes when I changed data sub-modes. I 
have no idea whether the current version is any different, but your 
experience suggests that it may still have this problem.

73,
Rich VE3KI


NK7Z wrote:

> My belief tells me that I should be able to reverse sideband on the
> radio, and reverse sideband on the software and it should still work...
> Is that a correct understanding?