No GPS in T3RRA Cutta v1 when using dual scrapers in iGrade v1.

Symptoms:

Customer is running dual scrapers on iGrade v1. GPS appears to be present in T3RRA Cutta if only one scraper is configured.  Changing to dual scrapers in T3RRA Cutta causes GPS to be lost. 

Cause:

iGrade had been set up in “Plane Control” for SCV1 & SCV3 under the control selection . 

Solution:

Change the control selection to “Remote Control” for SCV1 & SCV3 and cycle power.