Standard Horizon HX290, Руководство по обслуживанию

Страница: 2 / 42

2
HX290 Service Manual
Specifications
General
Frequency Ranges : TX: 156.025 MHz - 157.425 MHz
RX: 156.050 MHz - 163.275 MHz
Channel Spacing : 25 kHz
Frequency Stability
: ±10 ppm (–4 °F to +140 °F [–20 °C to +60 °C])
Emission Type : 16K0G3E
Antenna Impedance : 50
Ω
Supply Voltage : 7.4V DC, Negative Ground (Battery Terminal)
Current Consumption : 320 mA (Receive, Typical at AF MAX.)
50 mA (Standby)
1.6 A / 0.7 A (TX: 5 W / 1W)
Operating Temperature : –4 °F to +140 °F (–20 °C to +60 °C)
Battery Type and Capacity : Lithium-Ion, 1170 mAh
Waterproof Rating : JIS-8 / IPX8
1.5 m (about 5Ft) for 30 minutes
Case Size (W x H x D) : 2.24” x 5.24” x 1.73” (57 x 133 x 44 mm)
(w/o knob & antenna)
Weight (Approx.) : 10.9 oz (310 g)
(w/FNB-110LI, Belt Clip, & Antenna)
Transmitter
RF Power Output : 5 W / 1 W (@7.4 V )
Modulation Type : Variable Reactance
Maximum Deviation
: ±5 kHz
Spurious Emission : –75 dBc typical
Microphone Impedance : 2 k
Ω
Receiver
Circuit Type
: Double-Conversion Superheterodyne
Intermediate Frequencies : 1st: 21.7 MHz, 2nd: 450 kHz
Adjacent Channel Selectivity : 70 dB typical
Intermodulation : 68 dB typical
Hum & Noise Ratio : 40 dB typical
Sensitivity : 0.25 µV for 12 dB SINAD
Selectivity
: 25 kHz (–70 dB)
AF Output (Internal SP): 700 mW @16
Ω
for 10 % THD (@7.4 V)
Performance specifications are nominal, unless otherwise indicated, and are subject to change without notice.
Measured in accordance with TIA/EIA-603.
Important Note
The HX290 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.