Standard-horizon HX-471S User Manual download pdf (Page 59)

HX471S Page 57

18.2 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

18.3 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)

This device complies with part 15 of the FCC rules. Operation is subject

to the condition that this device does not cause harmful interference.

Part 15.21: Changes or modifications to this device not expressly ap-

proved by Vertex Standard could void the User’s authorization to oper-

ate this device.

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Standard-horizon HX-471S User Manual Page 59