Furuno FS-1562-15, FS-1562-25 manual Frequency Sweep, ITU channels

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ITU channels:

To select the scan group (band or channel), shift the cursor to either the position of the band or channel number by pressing the [2] CURS key. (Band scan is useful to watch frequencies on the same channel in different bands.)

2.Press the [6] SCAN key, and “SCAN” appears. The receiver starts scanning, stopping at a channel where the signal is stronger than the scan-stop level. The receiver will restart scanning when the traffic goes out of that channel.

For example, the scan group is “channel” and scan starts at ITU 1203:

SIMP R 0 2 4 6 8 10 S LOW

AGC NB SCAN

J3E

3. To stop scanning, press the [6] SCAN key. “SCAN” disappears from the operation display.

1.12 Frequency Sweep

Sweep is the function where the receiver searches for a signal within a selected frequency coverage. For sweep operation, the AGC function should be ON.

The defaults of respective parameters are as follows:

Sweep stop signal level	3
Sweep stop time	2 s
Sweep width	100 kHz
Step frequency	1 kHz

These can be adjusted on system codes 9951 through 9954.

NOTE: Sweep width is the frequency width to sweep on both sides of the selected frequency. Sweep step is the frequency interval at which the receiver sweeps the sweep width.

Procedure

1.Select the sweep center by key operation.

2.Press the [6] SCAN key. “SWEEP” appears and the receiver starts sweeping.

3.To stop sweeping, press the [6].

-1.16-

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Contents Page T 9 9 Safety Instructions Do not disassemble or modify the equipment List of Contents Features IntroductionSpecifications of MF/HF Radiotelephone model FS-1562 GeneralReceiver Operation Front View of Transceiver Unit Rotary controlsKeys Page Power Supply Unit AC and DC power switchesFuses Starting operation Selecting FrequencyTX Freq Standard type Netherlands type Special type YESDirect frequency entry J3ECustom channels ITU telephony channels SSBITU Telex channels Tuning the antenna Using the handsetMonitoring transceiver output power TransmittingReducing transmitter power Distress Call on 2182 kHzDistress frequencies Distress calls and Distress messageEvent of Antenna Coupler Failure DSC Distress CallingReceiving Frequency Scan Squelch controlNoise blanker NB Channel scanFrequency Sweep ITU channelsOptional Devices Telex CommunicationIntercom Remote StationSetting Page Page This page is intentionally left blank Diagnostic Test Testing the transmitter with a dummy antennaWeekly Checks Page LCD/Keyboard Test & ROM Version No. Confirmation Antenna Coupler Test Competent technicians onlyMaintenance Page Troubleshooting Troubleshooting List For qualified personnel onlyTrouble Probable Cause Remedy Error Indication Replacing FusesThis page is intentionally left blank Appendix MF band working carrier frequencies ref. US CFR 47 Part MF band SSB working carrier frequencies CH noMHz ITU SSB carrier frequencies ITU RR Appendix Following frequencies are factory programmedAP.5 12/16 MHz ITU SSB carrier frequencies ITU RR Appendix AP.7 Telex Channels MF Band Telex Frequency TableMHz Band ITU Nbdp Telex Frequency Table ITU RR AppendixAP.10 AP.11 12/16 MHz Band ITU Nbdp Telex Frequency Table AP.13 18/19 MHz Band ITU Nbdp Telex Frequency Table AP.15 22, 25/26 MHz Band ITU Nbdp Telex Frequency Table