Furuno FS-1503 manual Antenna Coupler

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ANTENNA COUPLER

Power Capability	150 W pep
Tuning System	CPU controlled fully automatic tuning system
Frequency Range	1.6 to 27.5 MHz
Input Impedance	50 ohms (viewed from transceiver)
Antenna Required	6 to 15 meters wire or whip
Tuning Power	10 to 20 W pep
VSWR	Less than 1.5
Tuning Time	Within 2 to 15 seconds, Within 0.5 seconds for an ever tuned
	frequency
Dummy Load (option)	10 ohms + 250 pF for check of Two-tone alarm generator at
	2191 kHz (frequency changeable)
Power Requirement	12.0 VDC, 0.6 A (supplied from transceiver)
Construction	Waterproof plastic cabinet, stainless steel mount

RECEIVER

Receiving System	Double-conversion superheterodyne
	IF: 54.455 MHz and 455 kHz.
Sensitivity	Input level to produce SINAD 20 dB
		J3E	J2B
	1.6 - 4 MHz	Below +16 dBμV	Below +6 dBμV across 10 Ω + 250 pF
	4-27.5 MHz	Below +3 dBμV	Below -7 dBμV across 50 Ω
Pass Band	350 - 2700 Hz -6 dB
Cross Modulation	Unwanted signal +90 dBμV ±20 kHz from +60 dBμV wanted
	signal
Audio Output	1 W (8 Ω internal loudspeaker), 3.5 W (4Ω optional external
	loudspeaker)
	0 dBm/600Ω line output (for NBDP, DSC, RB-500)
Other Features	RF Gain:	Adjustable
	Squelch:	ON/OFF, Activated by voice/signal strength
	Dimmer:	OFF/Low/Medium/High
	Loudspeaker: ON/OFF (Handset always alive)
	AGC:	ON/OFF
	Noise blanker: ON/OFF (thru system setting)

SP-2

Image 38

Contents Page Page Safety Instructions Table of Contents Features IntroductionSystem Configuration OperationKeys Transceiver Unit DescriptionRotary controls Indications ALMTurning the Loudspeaker On/Off Turning the Power On/OffAdjusting the Backlighting Turning the Squelch On/OffSelecting Frequency Turning AGC on/offTx frequency Direct frequency entryRx frequency Paired Rx/Tx frequencyUser channels J3EITU telephony channels SSB Sample displays of ITU telephony channelITU Telex channels TLXTransmitting Tuning the antennaDisplaying Station Name Reducing transmitter power Using the microphoneMonitoring transceiver output power Distress Call on 2182 kHzDistress frequencies Distress calls and Distress messageReceiving Adjusting RF gainClarifier adjustment MeterNoise blanker NB Receiving AM broadcasting stationsSquelch control User channels Frequency ScanChannel scan ITU channels 12 Sample scan screenFrequency Sweep MIF Commands MIF commands applicable to the FS-1503Furuno Nbdp Terminal DP-5/DP-6 Operation of Optional EquipmentTelex Communication Priority Remote Station RB-500 requires optional Remote-B BoardIntercom Communication on 2182 kHzCustomizing by User Changing System SettingsSystem Setup Scan/sweep-stop signal level Writing User Channels Testing the transmitter with a dummy antenna MaintenanceAural testing Weekly ChecksDiagnostic Test Sequence of diagnostic testLCD/Keyboard Test & ROM Version No. Confirmation Key and corresponding indicationMaintenance MaintenanceMaintenance con’t Troubleshooting Troubleshooting ListTroubleshooting list con’t Errow Indication Replacing FusesSpecifications GeneralAntenna Coupler Appendix Custom CHANNELS/FREQUENCIESMF band working carrier frequencies ref. US CFR 47 Part MF band SSB working carrier frequencies CH noMHz ITU SSB carrier frequencies ITU RR Appendix ITU CH noFollowing frequencies are factory programmed 12/16 MHz ITU SSB carrier frequencies ITU RR Appendix CH no Ship RX Ship TX Telex Channels MF Band Telex Frequency TableMHz Band ITU Nbdp Telex Frequency Table ITU RR Appendix8001 12001 12/16 MHz Band ITU Nbdp Telex Frequency Table 16111 18/19 MHz Band ITU Nbdp Telex Frequency Table CH NO. Ship RX Ship TX22001 22, 25/26 MHz Band ITU Nbdp Telex Frequency Table Index

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