PNI Escort HP 6500 PRO Bedienungsanleitung Seite 8

Transmission
When the CB radio is in transmission mode (the PTT key is
pressed), the TX icon and the signal strength indicator appear
on the screen.
Reception
When the CB radio is in reception mode (the PTT key is released),
the RX icon and the signal strength indicator appear on the
screen.
AM/FM modulation
Short press the A/F key to switch between AM and FM. The AM
or FM icon appears on the screen depending on the selection
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