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Digitrax GP10: Blue Ridge #7562 Diesel Scheme Copyright (c) Digitrax Inc. July 8th 2007

This sound recording courtesy of Blue Ridge (GA) Scenic/Heritage railroad.
Unit# 7562 has conventional 567 prime mover. All sounds recorded by AJ Ireland at Blue Ridge GA in 2006.

Note: The normally aspirated 567 prime mover has significant low-frequency components at idle and low notch settings, so the speaker enclosures should be as large as possible behind the diaphragm to extend adequate frequency response below e.g. 300Hz. This will ensure a more "full" sound that does not appear thin or "tinny"

For CV155=01 ["Semi_automatic Notching"], the Prime mover lowest Notch setting is set by the throttle speed setting. F6 (ON) can increase the Notch and F7 (ON) will decrease the Prime mover to the minimum notch set by current throttle setting. If you leave F5 on, you can wind the engine handbrake forever!!