[hpsdr] Dual VFOs in KK Ethernet

[David McQuate]

I've added a second VFO to KK Ethernet 1.0.4.
Click on either VFO A   or   VFO B   Then all the ways of changing the 
frequency apply to the selected VFO.  (Can be cross-band or in one band).
Normally the selected VFO is used for both Tx and Rx, but if you click 
on the Tx A or Tx B button the corresponding VFO will be used for Tx.

Among other things, this allow one to measure the transmitter's harmonic 
power--by setting one VFO to twice or three times the frequency of the 
other, and selecting the lower frequency VFO for Tx.

Note that Duplex mode must be set to operate in split.  In Setupform, 
click on the Transmitter tab, and make sure that the check box "Mute Rx 
on PTT" is NOT checked.

Source and executable (both Release and Debug) may be found on the SVN --

svn://svn.openhpsdr.org/svn/repos_hpsdr_kiss/branches/WA8YWQ/KK Dual VFO

73,
Dave
wa8ywq
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