Crown FM5 User Manual page 16

2.4 RF Connections & Antennas
Connect the RF load, an antenna or the input of an external power amplifier, to the type-N,
BNC output connector on the rear panel.
A simple antenna is included which will work for most applications.
However, if another antenna is attached, you will need to remove the top cover and clip or
unsolder the wire from the resistor to the BNC. See illustration 2-10 below.
RF Output
Illustration 2–9 RF Output
Cut or Unsolder before attaching a different antenna
Illustration 2–10
2-4 FM5 User's Manual