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

Page 38
Image 38
Furuno FS-1503 manual Antenna Coupler