Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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FM Aerial Diversity

FM Aerial Diversity





The tuner is connected to the aerial diversity module via an aerial connector (Fakra) and a coaxial cable. The antenna diversity switches to the next aerial as soon as the signal quality of the active FM aerial exceeds a defined threshold value. No interruption can be heard when the diversity module switches over. Evaluation of the signal quality and the switch over only occur in the aerial diversity module.