I wrote it for my own use but it could be interesting for K3
owners using the transceiver to drive VHF-UHF transverter for EME
traffic, it is a
small prototype of a utility to be used with a K3 transceiver to split automatically receive and transmit according to the current moon doppler.
The programs allows also changing CW speed select one of 4 CW predefined messages as well as an audio file to be used as SSB CQ call.
The bands currently covered are 70 & 23 cm + any axiliary band by defining the proper frequency,
the status has to be intended as an initial prototype and any suggestion for improvements (if interested) is welcome.
It has been tested on a XP system as well as Windows 8/64 and W10 (to be run as administrator).
The application was written with K3 as target but should be usable with any CAT compatible transceiver (tested with K2 and Flex).
Download zip file
An Elecraft K3 transceiver connected to the PC via the serial com.
The K3 Utility must be the only program connected to the K3.
Extract K3 Keyer.exe from the zip file in a disk directory and run it from there with administrator privilege
A POP up menu allows to taylor the functionality to local
The configurator is divided in a K3 section and an NTP panel
M1-M4 To start sending the corresponding predefined CW (or phone>
Stop Stop transmitting
Press the button to start CQing
Slider To change current K3 CW speed
The split operations are driven by current A VFO frequency and
Split TX , VFO A frequency and mode are copied to VFO B, current doppler is added to VFO B frequency, K3 forced to split mode.
Split RX , VFO A frequency and mode are copied to VFO B, current doppler is added to VFO A frequency, K3 forced to split mode.
Resync RX , VFO B frequency is copied to VFO A, current doppler is added to VFO A frequency.
Reset , split mode is reset , RIT & XIT cleared.
Doppler Current own doppler shift on the selected band (read only)
Doppler sync, enables the automatic VFO A doppler tracking for the selected band
The mode selection helps a bit in setting the tranceiver, the
prerequisite is to have the front microphone as main selection.
Each selection sets VFO A & VFO B to the selected mode (USB also for WSJT).
The difference between WSJT & SSB being the use of VOX in WSJT & SSB call to avoid the need for a serial connection to switch between TX and RX
and the input selection, LINE IN if WSJT FP MICROPHONE if SSB.