Specifications; Important Note - Standard Horizon HX751 Service Manual

Floating marine transceiver
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Specifications

General
Frequency Ranges:
Channel Spacing:
Frequency Stability:
Emission Type:
Antenna Impedance:
Supply Voltage:
Current Consumption:
Operating Temperature:
Thermometer Operating Range:
Case Size (W x H x D):
Weight (Approx.):
Transmitter
RF Power Output:
Modulation Type:
Maximum Deviation:
Spurious Emission:
Microphone Impedance:
Receiver
Circuit Type:
Intermediate Frequencies:
Adjacent Channel Selectivity:
Intermodulation:
Ham & Noise Ratio:
Sensitivity:
Selectivity:
AF Output (Internal SP):
Performance specifications are nominal, unless otherwise indicated, and are subject to change without notice. Measured in accor-
dance with TIA/EIA-603.
The HX751 was assembled using Pb (lead) free solder, based on the RoHS specification.
Only lead-free solder (Alloy Composition: Sn-3.0Ag-0.5Cu) should be used for repairs performed on this appara-
tus. The solder stated above utilizes the alloy composition required for compliance with the lead-free specification,
and any solder with the above alloy composition may be used.
2
TX: 156.025 MHz - 157.425 MHz
RX: 156.050 MHz - 163.275 MHz
25 kHz
±10 ppm (–4 °F to +140 °F [–20 °C to +60 °C])
16K0G3E
50 
7.4V DC, Negative Ground (Battery Terminal)
280 mA (Receive, Typical at AF MAX.)
50 mA (Standby)
10 mA (Standby, Saver On)
1.6 A / 1.5 A / 1.0 A / 0.7 A
(TX: 6 W / 5 W / 2.5W / 1W)
–4 °F to +140 °F (–20 °C to +60 °C)
14 °F to +140 °F (–10 °C to +60 °C)
2.44" x 5.57" x 1.61" (62 x 141.5 x 41 mm) w/o knob & antenna
10.8 oz (305 g) w/FNB-V99LI, Belt Clip, & Antenna
6 W / 5 W / 2.5 W / 1 W (@7.4 V )
Variable Reactance
±5 kHz
–75 dBc typical
2 k
Double-Conversion Superheterodyne
1st: 47.25 MHz
2nd: 450 kHz
70 dB typical
70 dB typical
40 dB typical
0.25 μV for 12 dB SINAD
12 kHz / 25 kHz (–6 dB / –60 dB)
700 mW @16  for 10 % THD (@7.4 V)

Important Note

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