3
GENERAL
Frequency Ranges
(MHz):
156 MHz - 163.275 MHz (Marine Band + WX Band), Channel Steps: 25 kHz
462.5625 MHz - 467.7125 MHz (FRS Band), Channel Steps: 6.25 kHz
151.82 MHz - 154.60 MHz (MURS), Channel Steps: 5 kHz
88 MHz - 108 MHz (FM Broadcast), Channel Steps: 100 kHz
500 kHz - 1800 kHz (AM Broadcast), Channel Steps: 10 / 9 kHz
108 MHz - 137 MHz (AIR Band), Channel Steps: 25 kHz
Frequency Stability
:
±2.5 ppm (–22 °F to +140 °F [–30 °C to +60 °C])
Emission Type
:
16K0F3E, 11K0F3E, 16K0G2B
Antenna Impedance
:
50 Ohms
Supply Voltage
:
Nominal: 7.4V DC, Negative Ground (Battery Terminal)
Current Consumption
:
195 mA (Receive)
68 mA (Standby, Saver Off)
45 mA (Standby, Saver On)
1.7 A (Marine High Power)
1.2 A (Marine Mid Power)
0.8 A (Marine Low Power & FRS)
Operating Temperature
:
–22 °F to +140 °F (–30 °C to +60 °C)
Case Size
(W x H x D):
2.36” x 3.78” x 1.12” (60 x 96 x 29 mm) w/o knob & antenna
Weight
(Approx.):
9.3 oz. (265 g) with FNB-80LI
TRANSMITTER
RF Power Output
(@7.4 V):
5, 2.5 or 1 W (Marine Band)
0.5W (FRS Band)
Modulation Type
:
Variable Reactance
Maximum Deviation
:
±5 kHz (Marine Band)
±2.5 kHz (FRS Band)
Spurious Emission
:
At least 65 dB below
Microphone Impedance
:
2 k-Ohm
RECEIVER
Circuit Type
:
Double-Conversion Superheterodyne (NFM, AM)
Triple-Conversion Superheterodyne (WFM)
Intermediate Frequencies
:
NFM, AM
WFM
1st:
47.25 MHz
45.8 MHz
2nd:
450 kHz
10.7 MHz
3rd:
–
1 MHz
Sensitivity
:
0.2 µV for 12 dB SINAD (Marine & MURS Band)
0.2 µV for 12 dB SINAD (FRS Band)
1 µV for 12 dB SINAD (FM Broadcast)
0.5 µV for 10 dB SN (AM Broadcast)
0.5 µV for 10 dB SN (AIR Band)
Adjacent Channel Selectivity
:
65 dB Typical
Intermodulation
:
65 dB Typical
Selectivity
:
12 kHz / 25 kHz (–6 dB / –60 dB) NFM / AM
200 kHz / 300 kHz (–6 dB / –20 dB) WFM
6 kHz / 18 kHz (–6 dB / –60 dB) FRS Band
AF Output
:
400 mW @ 8 Ohm for 10 % THD (@7.4 V)
Performance specifications are nominal, unless otherwise indicated, and are subject to change without notice.
Specifications
Summary of Contents for HX471S
Page 1: ...1 SERVICE MANUAL Submersible Multi Band Marine Portable HX471S EM002N95B ...
Page 5: ...5 Block Diagram ...
Page 6: ...6 Connection Diagram ...
Page 10: ...10 Circuit Description Note ...
Page 16: ...16 Circuit Diagram RF Unit Lot 4 6 ...
Page 17: ...17 Circuit Diagram RF Unit Lot 7 ...
Page 18: ...18 Note RF Unit ...
Page 32: ...32 Circuit Diagram AF Unit Lot 3 6 ...
Page 33: ...33 Circuit Diagram AF Unit Lot 7 ...
Page 34: ...34 Note AF Unit ...
Page 46: ...46 Note AF Unit ...
Page 48: ...48 CNTL Unit Lot 3 Circuit Diagram ...
Page 58: ...58 Note CNTL Unit ...
Page 62: ...62 Note VCO Unit ...
Page 64: ...64 FVP 31 Option Circuit Diagram Parts Layout Side A SideB NJM2904V Q5002 CMX264 Q5001 ...
