Standard Horizon HX-471S - Manual (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.