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EE-2 Encoder Emulator

Penn Avionics, Inc. has introduced the EE-2 encoder emulator / Gray code generator. The EE-2 offers the avionics technician a low cost solution for debugging encoder complaints. The EE2 is designed to reduce troubleshooting time of any encoder related issues. The unit can detect encoder problems, and / or generate gray code data for testing transponders, GPS systems, altitude preselects, or any device that is connected to the aircraft mode C bus.  The EE-2 can generate both 9 bit parallel data, and 9600 baud serial altiude data.

The EE-2 is a microprocessor-based product that has several internal programs for debugging problems. With the EE-2 in place of the existing aircraft encoder, the technician can view the status of power, ground, code lines, and enable signals from the aircraft harness. The technician can quickly determine the source of a problem. The gray code generator allows the technician to manually enter an altitude, or automatically step through various bit patterns or altitude sequences. Once a desired altitude program is selected, the EE-2 is hands free requiring no other switch manipulation. The EE-2 will run off an internal battery, or from any valid power pin on the aircraft harness. The EE2 also complements your transponder bench repair capability by providing a convent method of providing mode c data to transponders under test. 

The EE-2 has a 36-inch ribbon cable terminated into a 15 pin male connector that will allow it to plug directly into the aircraft encoder harness. The EE-2 is available through  Penn Avionics, Inc or Avionics International Supply (AIS).