[eagle] Re: CAN-Do-Too! ??????????

Hi Chuck

The naming of one "EB" is a legacy from P3D where the engineering beacon was so pervasive throughout the satellite that it was decided to actually name one of the user pins as such. Part of this is also driven by P3E/P5A

perceived requirements. P3E has used some of the user pins to input structure thermistor signals to modules that do not otherwise use all of their analog input pins on the 40 pin connector.

On P3E, the EB signal goes to the P3E U/V transponder from the IHU3. In the U/V transponder, it hits a DSP GPIO pin via a voltage level adjustment and isolation circuit. The DSP uses this to generate the BPSK beacon.

73, Howard G6LVB