It seems the cal files have one gain parameter starting at 50MHz in 50MHz steps. The smallest of the three files must’ve been intended for a system with an E2730 and the others for systems with E2731.
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It seems curious about that there isn’t any attenuator information in the files despite the fact that the 89605 contains one. Perhaps the cal signal loops through the tuner and the actual attenuation is computed.
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