Product no.: 9-0037

Exclusive-distributor for USA & Canada:


ERC-Mini SDX was designed especially for the SDX-series rotators of Yaesu/Kenpro. It comes ready assembled and tested and will be mounted directly inside the Yaesu/Kenpro control-box.

Included with the ERC-Mini SDX:

  • Ready assembled and tested ERC-Mini SDX with USB-interface
  • Mounting material (bolts, screws, etc) for direct-mount inside the SDX-control-box
  • USB-cable.
  • Service-Tool (Windows XP/Vista/7/8/10 32 and 64bit) for configuration and calibration.
  • Rotor-Control Software (Windows XP/Vista/7/8/10 32 and 64bit)


  • Size of printed board : 67mm x 37.5mm
  • Supply-voltage : 5 VDC through USB, max 10mA
  • Operating-temperature : 0 to 70
  • Measuring-circuit for the rotator-feedback-voltage : 0 to +6V, Input-Impedance > 25 KOhm.
  • Resolution : 10bit.
  • Software-driven calibration with calibration-assistant.
  • Full support for rotators with overlap up 180
  • Security-stop, if the rotators doesn´t move
  • Outputs-circuits :
    • open-collector-outputs for CW, CCW
    • 4-stage speed-control with DAC
  • Communication-port: USB with FTDI-chipset. Baudrate configurable 4800-9600 Baud
  • Controller with bootloader.
  • ERC-Mini SDX is compatible to a subset of the following protocols :
    • Hygain DCU-1 with extension for position-feedback
    • Yaesu GS232A
    • Yaesu GS232B
  • Programs with which ERC-Mini SDX has been checked successfully : see Software-guide
  • Compatible rotators: Yaesu/Kenpro SDX-series G/KR-800/1000/2700/2800 SDX
  • Firmware supported features:
    • delay before rotator starts moving
    • programmable end-stops
    • antenna offset
    • support of overlap up to 180
    • speed-function
    • tolerance of position
    • software-calibration
    • save and load of all calibration- and configuration-data
  • More details are available in the instructions in the File-section below.

RoHS : ERC-Mini and the components used are according to the EG-directive 2002/95/EG to avoid usage of hazardous substances in electronic equipment.



89,00 EUR

19 % VAT incl. excl. Shipping costs