Furuno FS-1503 manual Scan/sweep-stop signal level

Page 27

9951

Scan/sweep-stop signal level

 

When the receiver detects a signal whose level is stronger than the preset

 

level it stops scanning and receives the signal. The setting on system code

 

9955 is available only when “0” (SQ working condition) is selected here.

 

Setting range: 0 (Squelch working condition is effective as set on code

 

9955), 1-10 (S-meter level); Factory setting: 3

9952

Scan/sweep-stop time

 

When a signal is detected, the receiver stops scanning/sweeping and dwells

 

on this channel frequency. When “0” (RX) is selected, the receiver keeps

 

receiving until the traffic goes out of this channel frequency. Define the

 

dwell time between 1 and 99 sec.

 

Setting range: 0 (RX), 1-99 sec; Factory setting: 2

9953

Sweep width setting range: 0.01-30000.00 kHz; Factory setting: 100.0

9954

Sweep step frequency

 

Setting range: 0.01-30000.00 kHz; Factory setting: 1.00

9955

Squelch activation

 

“Squelch activation” is the method by which the squelch is activated.

 

Setting range: 0, 1, 2, 3; Factory setting: 3

 

0: Voice

 

The squelch is opened by signal frequency less than 1000 Hz (factory set-

 

ting). This frequency can be changed between 500 – 2000 Hz on system

 

code 9958. The loudspeaker reproduces a sound when the signal is lower

 

than the preset frequency.

 

Squelch OPEN:

 

Audio signal is detected and a sound is reproduced through the loudspeaker.

 

Squelch CLOSED:

 

No input signal but only noise is coming into the receiver. The receiver is

 

muted.

 

1: Level

 

The squelch is activated depending on “signal strength”. The factory setting

 

is “5”. You can change the level between 0 - 10 on system code 9956.

 

2: And

 

The squelch opens when both “voice” and “signal strength” meet the set-

 

ting.

 

3: Or

 

The squelch opens by either “voice” or “signal strength”, whichever meets

 

the setting.

9956

Squelch level. Setting range: 0-10; Factory setting: 5

3-2

Image 27 Contents
Page Page Safety Instructions Table of Contents Introduction FeaturesOperation System ConfigurationTransceiver Unit Description Rotary controlsKeys ALM IndicationsTurning the Squelch On/Off Turning the Power On/OffAdjusting the Backlighting Turning the Loudspeaker On/OffTurning AGC on/off Selecting FrequencyPaired Rx/Tx frequency Direct frequency entryRx frequency Tx frequencyJ3E User channelsSample displays of ITU telephony channel ITU telephony channels SSBTLX ITU Telex channelsTuning the antenna Displaying Station NameTransmitting Distress Call on 2182 kHz Using the microphoneMonitoring transceiver output power Reducing transmitter powerDistress calls and Distress message Distress frequenciesMeter Adjusting RF gainClarifier adjustment ReceivingReceiving AM broadcasting stations Squelch controlNoise blanker NB Frequency Scan Channel scanUser channels 12 Sample scan screen ITU channelsFrequency Sweep MIF commands applicable to the FS-1503 MIF CommandsOperation of Optional Equipment Telex CommunicationFuruno Nbdp Terminal DP-5/DP-6 Communication on 2182 kHz Remote Station RB-500 requires optional Remote-B BoardIntercom PriorityChanging System Settings System SetupCustomizing by User Scan/sweep-stop signal level Writing User Channels Weekly Checks MaintenanceAural testing Testing the transmitter with a dummy antennaSequence of diagnostic test Diagnostic TestKey and corresponding indication LCD/Keyboard Test & ROM Version No. ConfirmationMaintenance MaintenanceMaintenance con’t Troubleshooting List TroubleshootingTroubleshooting list con’t Replacing Fuses Errow IndicationGeneral SpecificationsAntenna Coupler Custom CHANNELS/FREQUENCIES AppendixMF band working carrier frequencies ref. US CFR 47 Part CH no MF band SSB working carrier frequenciesITU CH no MHz ITU SSB carrier frequencies ITU RR AppendixFollowing frequencies are factory programmed 12/16 MHz ITU SSB carrier frequencies ITU RR Appendix CH no Ship RX Ship TX MF Band Telex Frequency Table Telex ChannelsITU RR Appendix MHz Band ITU Nbdp Telex Frequency Table8001 12001 12/16 MHz Band ITU Nbdp Telex Frequency Table 16111 CH NO. Ship RX Ship TX 18/19 MHz Band ITU Nbdp Telex Frequency Table22001 22, 25/26 MHz Band ITU Nbdp Telex Frequency Table Index
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