Furuno FS-1503 - Manual (Page 38)

SP-2
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 dB
µ
V Below +6 dB
µ
V across 10
Ω
+ 250 pF
4-27.5 MHz Below +3 dB
µ
V Below -7 dB
µ
V across 50
Ω
Pass Band 350 - 2700 Hz -6 dB
Cross Modulation Unwanted signal +90 dB
µ
V
±
20 kHz from +60 dB
µ
V wanted
signal
Audio Output 1 W (8
Ω
internal loudspeaker), 3.5 W (4
Ω
optional external
loudspeaker)
0 dBm/600
Ω
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)