Setup guide

higher and there will be a substantial voltage "kick" on when the relays. The relays in the Station
Master won't handle the currents required by the Tailtwister, so it was necessary to use some SPDT
power relays with 20A contacts and 12V coils that I obtained at a local electronics surplus outlet to
buffer the Station Master relays. The power relay NO contacts were simply wired across the CW,
CCW and Brake switches in the Tailtwister control box. The SM Analog Input was taken directly from
Terminal 3 of the control box and the Analog Ground was wired directly to Terminal 1 of the box.
Randy, W8FN
Trap alarms
Extend the "Report time" setting on the "Display" tab to the maximum and make "Alarm" the only
Report selection for the bottom line.
Errors
KEY IN TOO LONG − Key IN can be found in Router on PA & Sequencer subtab from Antenna
Switching& PTT sequencer in Station Master
Cahange the setting or deselect when not used. Dont forget to Store this information to the Station
Master...
Antenna lock out between Station Masters.... NO
With two Station Master controllers, one unit does not know which antennas are selected by the other
controller. There is no provision for sharing rotors between the units − but the firmware/software
continues to evolve.
Resource sharing
Networked resource sharing of rotors, SteppIR antennas, etc. are features planned for Station Master
Deluxe.
Rotor control
With the present software, rotor control is tied to selection of an antenna on the rotor. There are two
"solutions" − first use a separate RS−232 interfaces rotor controller with the "auxiliary" port or second
define all antennas as being on the rotor.
Antenna rotor resources are not shared among multiple Station Master controllers. The rotor control,
SteppIR control and amplifier control are bound to the Station Master and transceiver to which it is
connected. Antennas are shared using a Double Ten Switch with each Station Master controlling one
"side" or set of outputs.
Stack switch
Station Master can interface with a stack switch by defining each configuration as a separate antenna.
However, if you do that you will need to design an external relay network to switch the stack switch
control lines between the two Station Master controllers so that the "active" Station Master is
controlling the stack switch.
1.5 microKEYER (discontinued)
Audio connections
microKEYER computer
Soundcard OUT Line Out
Soundcard IN Line IN
Soundcard Mic Mic IN
1.6 Elecraft K3
13−2−2009 1 General information (setting up microHAM and N1MM logger) 6