
Ba1258B_RemoteRig_MkIIs-A33.docx
Microbit 2.0 AB 2010. All rights reserved
or Stereo speakers with built in lf-power amplifier if you use a Dual Receiver system. PC-type
speakers are very well suited for this.
Sub Receiver (*)
Main receiver
GND
(*) Sub receiver, only available in RRC-1258MkIIs version
SP Radio-RRC
At the Radio-RRC the speaker connector is an input for the speaker signals from the radio.
The Dual-Rx version has inputs for both the Main-Rx and Sub-RX. The Main-Rx input is
connected in parallel with the input pins in the MIC/AUX and TTL connector. The inputs has
resistive loads of 50 ohms. The connector is a standard 3.5 mm jack for a mini stereo plug
and there is no switch in the connector.
Sub Receiver (*)
Main receiver
GND
(*) Sub receiver, only available in RRC-1258MkIIs version
CW Control-RRC
The CW knob is used for adjusting the CW-speed of the built in CW-keyer. The CW –Speed
adjustment is also connected to the WinKeyer emulator. There is no knob on the Radio-RRC.
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