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Summary of Contents for FRIENDCOM FC-302-GMSK
- Page 1 FC-302-GMSK FC-302-4FSK Modem manual V2.0 Shenzhen Friendcom Technology Co., Ltd. Add: 3th Floor, 6 Building, Guangqian Industrial Park, Xili Town, Nanshan District, Shenzhen, 518055, China Tel.: +86-755-86026600 Fax.: +86-755-86026300 Web: www.friendcom.com E-mail: sales@friendcom.com...
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Page 2: Table Of Contents
Table of Content 1 Overview..................................1 2 Interface Description..............................1 3 Installation Description.............................4 4 Technical specifications............................5 5 Testing..................................8 6 Parameter setting..............................9... -
Page 3: Overview
FC-302-GMSK FC-302-4FSK. FC-302-GMSK supports 9600bps air baud rate, and FC-302-4FSK supports both 9600bps and 19200bps. FC-302-GMSK and FC-302-4FSK pictures 2 Interface Description FC-302-GMSK and FC-302-4FSK have the same interface structure. CON1(external interface) is connected to data radio’s outside interface, and J1(internal interface) is connected to main board. - Page 4 CON1 Interface Description Name Type Description Ground The serial port data receiving end of Modem board Test control end, active-low, connection between this pin and low voltage level can activate modem board sends PN9(GMSK) or 01(4FSK) constantly Modem board serial port data sending end CD_OU Carrier signal detect.
- Page 5 Outside interface definition for FC-302 with high speed modem board Definition Function Description Remarks AUDIO_IN Audio modulation input, 3KHz Only 7 pin MIC end （MOD IN） LPF, modulation sensitivity: disconnects 100mV AUDIO_IN works AUDIO_OUT Audio modulation output, 3KHz Only 7 pin MIC end （AF OUT）...
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Page 6: Installation Description
FC-302 serial port type option picture FC-302 high speed modem boards support TTL, RS232 and RS485. Please check the interface type before using. If adjustment needed, please welding corresponding resistance. FC-302-4FSK FC-302-GMSK FC-302 high speed modem boards installation picture FC-302 Modem Manual... -
Page 7: Technical Specifications
4 Technical specifications GMSK 4FSK Remark Power DC 12V DC 12V Com baud 9600 19200 rate(bps) The symbol frequency is Symbol 2400KHz at 9600bps; 4800 2400/4800 frequency (KHz) The symbol frequency is 4800KHz at 19200bps; RF Baud rate 9600/1920 The RF baud rate and Com 9600 (bps) baud rate is same at 4FSK... - Page 8 4.1.2 After RXD at TX end received the data, the PTT response delay is T2,then TFSK response is T3. RXD at TX end 发送端的RXD 发送端的PTT PTT at TX end RFSK at RX end 接收端的RFSK 4.1.3 After RFSK at RX end received data , and then send the data to Serial port, the delay is T4.
- Page 9 Return :\r\nCHN=N\r\n Set channel, send: AT+CHN=N\r Return :\r\nOK\r\n or \r\nERROR\r\n NOTE :The range of N is from 1~16 Please reduce the use of "AT+CHN=N\r" command, multiple operations may cause the data radio to be broken. We recommend modifying the channels through the host software. Please refer to the document of FC-302 software Instruction(V1.4).
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Page 10: Testing
4.2.8 Query the version NO. Of modem : VERSION Query the version NO., send :AT+VERSION=?\r return :\r\nHW VERSION :%s\r\nSW VERSION :%s\r\n 4.2.9 Modem RESET Reset, send : AT+RESET\r Return :\r\nOK\r\n or \r\nERROR\r\n 4.2.10 Test command AT+TEST=EXIT\r exit AT+TEST=CODE01\r send 01 code AT+TEST=CODE0\r send all 0 code AT+TEST=CODE1\r... -
Page 11: Parameter Setting
Radio RTS pin (CON1 of 3th pin, see the Interface Description) can trigger radio into a test mode; specific applications are as follows : 5 seconds after powered on the radio, start detecting RTS pin level (detection time is 60 sec), during this time, if the pin is low RTS, the radio will enter into the test mode, if the RTS is high, the radio will exit the test mode;... - Page 12 2. By "read", "read radio", "write the radio" and can be configured to read all function parameters of radio options; FC-302 Modem Manual...
- Page 13 FC-302 Modem Manual...
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