Furuno FS-1503 manual Receiving, Adjusting RF gain, Clarifier adjustment, Meter

1.12 Receiving

You can select a receiving frequency by one of the following methods:

-Direct frequency entry, or

-Channel number entry

Adjusting RF gain

In normal use the [RF GAIN] control should be set for maximum. If the audio on the received channel is unclear or interfered with other signals, adjust (usually reduce) the control to im- prove clarity.

Clarifier adjustment

If reception is unclear, try to clarify the signal as follows. For manual entry of frequency, sim- ply turn the [FREQ/CH] control for fine tuning.

1.Press the [CLARI/3] key. (If a frequency is selected by CH No., the cursor which was located at the channel number, moves under the 10 Hz place and “CLAR” appears on the display.)

2.Turn the [FREQ/CH] control to fine tune the receiver on the wanted frequency.

3.To terminate this operation, press the [CLARI/3] key again. The cursor returns to the chan- nel number.

S-meter

During reception, the meter works as a Sensitivity Meter indicating the relative signal strength coming into the receiver front end. While in transmission, it indicates output level at the trans- ceiver.

0 2 4 6 8 10 S

Figure 1-11 S-meter

Note: S-meter will not work with AGC off.

Monitoring traffic on intended transmit frequency

When a semi-duplex (two-frequency simplex) channel is selected, it is recommended to moni- tor it if there is no existing traffic on the frequency you are going to use. To do this, press the [RX] key followed by the [ENT] key. The transceiver unit monitors traffic on the selected frequency for three sec. If you want to monitor continuously, press the [TX] key followed by the [ENT] key.

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