Receiving - Furuno FS-5075 Operator's Manual

Checking the transmitting power
During transmission, the IA bar deflects according to the current being fed to the antenna
feeder from the antenna coupler. The unit of readout is amperes. The antenna current
varies with the effective antenna impedance. The reading differs by the frequency and
antenna length. The output power is proportional to the square of an antenna current.
2.4

Receiving

Check if the emission mode and receiving frequency are set properly. If necessary, set them
again referring to section 2.1 and 2.2.
2.4.1 RF gain (sensitivity) adjustment
In normal use the sensitivity should be set for maximum. If the audio on the received
channel is unclear or interfered with other signals, adjust (usually reduce) sensitivity to
improve clarity.
Rotate the RF GAIN knob to adjust gain (sensitivity). The setting value is
displayed at the lower left-hand side of the screen in icon and number.
2.4.2 S-meter
The S-meter shows relative signal strength coming into the receiver front end.
34°42 . 2800 ' N
135°19 . 5900 ' E
34°42 . 2800 ' N
135°19 . 5900 ' E
2. SSB RADIOTELEPHONE
Antenna
current
S meter
2-5