Какие есть возможные варианты для изготовления блока :
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УВЧ-->НЧ-->звуковая карта -->софт.
emgo@vuhz.cz or mailto:
_20emgo@iol.cz
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Receiver technical data
Frequency Range : 134 (7) - 141 MHz (infinitely adjustable, step by step 10 kHz)
Frequency Synthesizer Step: 10,0 kHz or alternately 12,5 kHz
Input Sensitivity: 0,25uV (rms-type) for 12dB SINAD
Intermediate Frequency: 10,7 MHz and 455 kHz
Tone decoder/PLL SE567: 2400 Hz
Pass band of the 2-st.IF filter: 30 kHz/ - 3 dB or alternately 15 kHz
Power: DC 9 V (max.12 V)
Current output: 70 - 90 mA, according to the loudness level setting
Power Connector: 3 mm (+ pole is inside of the jack pin, - pole is on its surface!!!)
WXtoIMG Scanning: Yes / 10 -channel, controlled by the uP [ RS232/1200bit/sec. ]
Automatic Scanning: Yes - 2400 Hz stop point - Squelch function controlled by the uP
Noise Gate ( SQUELCH ): Yes
Antenna Connector: "2x SO239" type or "2x BNC" type
Display: LCD 1 x 16 alpha - numerical symbols
Connection for Loud speaker: (or Headphones) external 8-25 Ohms, CINCH connectors
Connection for PC: PIN connectorsor cable from the computer sound card & DB9
Receiver Size: 225x200x70 mm
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Можно купить в сборе, можно набор, можно одни платы...
Я брал платы.