Understanding Headphone Switching - microHAM micro2R u2R User Manual

Hide thumbs

Table Of Contents

Table of Contents

Like transmit focus, headphone switching (receive focus) can operate in MANUAL or AUTO modes.

Manual headphone switching

In manual mode the operator can select what he

wants to hear using the RX-R1 and RX-R2 buttons.

RX-R1 selects audio from radio1 to both ears in

stereo as provided by the transceiver.

RX-R2 selects audio from radio2 to both ears in

stereo as provided by the transceiver.

A short press (less than 0.5 second) of RX-R1 and

RX-R2 simultaneously will switch the main receiver

audio (tip of the headphone jack) of radio1 to the left

ear and the main receiver audio (tip of the headphone jack) of radio 2 to the right ear.

AUTO headphone switching

Automatic headphone switching is a unique and powerful feature of the micro2R. By using programmable

States, micro2R provides the maximum level of flexibility to customize headphone switching. Switching

micro2R to AUTO headphone switching mode is accomplished by pressing the RX-R1 and RX-R2 buttons

at the same time for more than 0.5seconds. AUTO mode is indicated by the AUTO light. A short (less than

0.5 second) press of RX-R1, RXR2, or BOTH at any time will exit AUTO mode (return to manual control).

The micro2R AUTO mode operates based on six "operating" states and one "priority" state. A different,

operator defined, headphone switching configuration can be applied for each state. Transmit focus, the

transmit/receive state of each radio, Receive Focus and "STEREO" (or SPLIT) are used to control

headphone switching. The interface by which the logging program communicates these additional signals

can be configured on the SO2R tab in Router.

micro2R recognizes these states:

State 1:

Both radios receiving, RADIO1 has RX Focus

State 2:

Both radios receiving, RADIO2 has RX Focus

State 3:

RADIO1 is switched to transmit by computer (serial PTT, WinKey, or Protocol).

State 4:

RADIO2 is switched to transmit by computer (serial PTT, WinKey, or Protocol).

State 5:

RADIO1 is switched to transmit manually (Footswitch, paddles, or VOX).

State 6:

RADIO2 is switched to transmit manually (Footswitch, paddles, or VOX).

Stereo:

Priority "stereo" state. Special "Stereo" settings are applied

For proper automatic operation, the desired configuration must be defined for each applicable state. This

can be accomplished by selecting the radio/configuration on the "Audio" tab.

NOTE: AUTO headphone switching (receive focus) and AUTO transmit switching (transmit focus)

can be enabled independently.