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The SO2R Tab is used to configure the signals each program uses to convey transmit Focus, Receive
Focus and Stereo (Split) headphone states to MK2R/MK2R+.
Computer AUTO Control:
If MK2R is in AUTO TX Focus and AUTO RX Focus, radio selection is under software control. MK2R
provides three ways for the application to control focus: the traditional parallel (LPT) port – the "CT/NA
standard," serial port handshake signals, or by software command (microHAM SO2R Protocol).
Note: Software developers who would like to implement native control of the MK2R and MK2R+ should
contact
OM7ZZ at
microham.com.
CLASSIC AUTO CONTROL is flexible tool for customizing MK2R for operation with current software.
There are four (4) parameters which can be controlled via LPT or virtual port signals.
1. TX focus: Used for automatic selection of which transceiver will transmit.
Available signals are:
LPT pin 3
●
LPT pin 14
●
COM port RTS signal
●
COM port DTR signal
●
Two PTTs
●
Each signal can be inverted if necessary. The state of the signal is represented by a RED arrow.
2. RX Focus: Used for automatic headphone "priority" switching when both radios are in receive.
Available signals are:
LPT pin 4
●
COM port RTS signal
●
COM port DTR signal
●
Follow TX Focus
●
Each signal can be inverted if necessary. The state of the signal is represented by a RED arrow.
"Follow TX focus" is a special setting for applications that provide only TX Focus control. Headphone audio
is selected automatically based on the TX Focus.
microHAM © 2008 All rights reserved
SO2R TAB
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