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High Sensitivity 5W UHF / VHF RS232 Wireless Data Modem Using FSK

FC-302

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Description

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High Speed 16 Channels 5W UHF/VHF Radio Modem FC-302 with RS232 for Long Distance

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Abstract

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FC-302 is a synthesized 5-watt FM Radio Modem, which is designed for data transportation and voice communication. For the voice communication, it can support selected pre-emphasis, squelch and audio amplifier. The radio is PLL(Phase Lock Loop Synthesizer) /microprocessor controlled with optional FSK, GMSK, 4FSK modem. The application of two-point modulation with good low-frequency response in the radio also makes it a competitive choice for 1200-19200bps rate data application. Compact dimension and wide range DC support make it flexible to use. CE FCC certified.

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Features


Programmable 1W-5W Output Power
12.5KHz/25KHz Channel Spacing
Programmable 16 Channels
Fast Start-up Time
CTCSS/DCS Encode/Decode
Data-Voice Compatible
Fully PC Programmable
POCSAG Protocol Support
LED Status Indicator
FSK,GMSK & 4FSK Modem Option

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Specifications

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General Specification |
Frequency Range | VHF:136-174MHz UHF:400-440MHz, ? ? ? ? ?430-470MHz, ? ? ? ? ?450-490MHz |
Channel Spacing | 12.5KHz/25KHz Programmable |
Modulation Type | F3D/F3E |
Number of Channels | 16 |
Nominal Working Voltage | 12V DC |
Extreme Working Voltage | 9.5 V～16V DC |
Storage Temperature | -40℃～+80℃ |
Operating Temperature | -30℃～+65℃ |
Current Consumption | Standby | ＜100mA |
Transmit 5 watts RF Power | ＜1.5A |
Transmit 1 watt RF Power | ＜1A |
TX to RX Attack Time | ＜5ms |
RX to TX attack time | ＜5ms |
Frequency Error | ＜2.5ppm |
Antenna Connector | BNC 50Ω |
External interface | DB15/DB9 |
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Transmitter Specification |
RF Power | 1W/2W/3W/4W/5W Programmable |
Frequency Deviation | 25KHz Channel Spacing | ＜5KHz |
12.5KHz Channel Spacing | ＜2.5KHz |
Subsonic | 0.5KHz |
Audio Response | 25KHz Channel Spacing | 300Hz～3KHz +1/-3dB |
12.5KHz Channel Spacing | 300Hz～2.55KHz +1/-3dB |
Adjacent Channel Power | 25KHz Channel Spacing | ＜-70dBc |
12.5KHz Channel Spacing | ＜-65dBc |
? Conducted Spurious Emission | ＜1GHz,＜-36dBm ＞1GHz,＜-30dBm |
Modulation Sensitivity | Voice | 8~15mV |
Data | 80~130mV |
TX SNR | 25KHz Channel Spacing | ＞45dB |
12.5KHz Channel Spacing | ＞40dB |
Receiver Specification |
RX Sensitivity (12dB SINAD) | 25KHz Channel Spacing | ＜-119dBm Extreme＜-115dBm |
12.5KHz Channel Spacing | ＜-119dBm Extreme＜-115dBm |
ACP | 25KHz Channel Spacing | ＞70dB |
12.5KHz Channel Spacing | ＞60dB |
Image Rejection | ＞70dB |
IF Rejection | ＞70dB |
Spurious Rejection | ＞70dB |
Intermodulation Suppression | ＞65dB |
Conducted Spurious Emission | ＜-57dBm |
Receiving Audio Distortion | ＜5% |
RX SNR | 25KHz Channel Spacing | ＞45dB |
12.5KHz Channel Spacing | ＞40dB |
Audio Output Power | 0.5W @ 8Ωload |
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Applications

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? Industrial telemetry & wireless remote control
? Gas and oil flow monitoring
? Electricity, water and gas utilities
? Earthquake, weather, environmental protection and urban lighting control
? Vehicle tracking and asset tracking systems
? Water monitoring, waste water management and irrigation control
? Railway, police, army automation system
? Aerial defense and fire alarm system
? Wireless Paging system

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