Understanding Transmit (Tx) Focus - microHAM micro KEYER 2R Manual

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Manual (88 pages)

Table Of Contents

Table of Contents

25. Press Test Signal button and adjust for proper (normal) drive level using the R1 Master and R1 Line

sliders. Do not touch MIC GAIN on radio, TX1 knob on the MK2R front panel or the RADIO1

trimmer inside MK2R.

26. Repeat steps 4 – 25 for RADIO2.

27. This will have set proper levels for both radios and all modes. We suggest that you to store these

Router settings to the last preset. Click Preset | Save as, choose position number 12, name it

Default and store settings.

TIP: When you create your own presets, always begin by selecting the "default" preset

created in step 27. This will configure the audio levels to a known state before starting any

customization.

MK2R allows changing TX focus several ways. The READY lights indicate which radio will transmit in

response to a PTT signal. There are differences between MANUAL and AUTO TX focus mode.

Manual TX focus mode

In manual mode control of focus (selecting which radio will

transmit) is fully under operator control - the computer CAN

NOT change focus. The operator can select the active radio

(change focus) by pressing the RADIO1 (B14) or RADIO2

(B15) buttons. If MK2R is in AUTO mode, pressing the

RADIO1 or RADIO2 button will cancel AUTO mode and same

time move TX focus to the selected radio.

Another way to change focus in manual mode is with the foot

switches. If Dual foot switch is selected on the SO2R tab,

pressing either foot switch will change TX focus and than key

the radio. TX focus remains on the last selected radio when

the foot switch is released. FS1 jack is used for RADIO1 and

FS2 for RADIO2. If Dual foot switch is not selected, either

foot switch will key the radio with TX focus.

In manual mode, MK2R will do "signal redirection" to achieve expected behavior. MK2R will "redirect" all

CW, PTT, 2

PTT DVK and WinKey signals, to the radio transmit focus even when the signal was

assigned to the other radio.

AUTO TX focus mode

In AUTO mode, focus (transmitter selection) is controlled by the logging program. Selecting AUTO mode

is accomplished by pressing the RADIO1 (B14) and RADIO2 (B15) buttons at the same time. AUTO mode

is indicated by AUTO light. The software can control TX focus in several ways (virtual COM port signal or

LPT port signal) depending on the TX focus configuration on the SO2R tab.

Two PTTs is designed for software that provides a separate PTT signal for each radio including N1MM

Logger, Win-Test and DXLab Suite. With "Two PTTs," MK2R will change focus in response to the serial

port signals (PTT, 2

"Two PTT" mode, transmitter priority can be "first one wins" or "last one wins". If "first one wins" is

selected, the second radio will be prevented from transmitting until transmission is complete on the first

radio. If "last one wins" is selected, a transmission on the second radio will interrupt the first radio.