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Document number: FC-303-1
Document version number: V0.2
Revised statement
Version
Status
V0.1
New
Replace the radio physical picture, add
V0.2
Modify
some features
SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD.
FC-303 Data Radio User Manual
Revised statement
Date
Compiling
蒋太忠
2016-2-23
蒋太忠
2017-8-18
1/18
Review
Approval
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Table of Contents
Related Manuals for FRIENDCOM FC-303
Summary of Contents for FRIENDCOM FC-303
- Page 1 SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 1/18 FC-303 Data Radio User Manual Document number: FC-303-1 Document version number: V0.2 Revised statement Version Status Revised statement Date Compiling Review Approval 蒋太忠 V0.1 2016-2-23 Replace the radio physical picture, add 蒋太忠 V0.2 Modify...
- Page 2 SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 2/18 Shenzhen Friendcom Technology Development CO.,LTD. provide a full range of technical support for customers, users could contact with the nearest office of Friendcom, or contact with the company headquarters directly. Shenzhen Friendcom Technology Development CO.,LTD.
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Page 3: Table Of Contents
3.2 Interface function ..............................6 3.3 Interface definition ..............................7 4．Introduction to circuit composition principle ........................8 4.1 FC-303 Radio box general picture .......................... 8 4.2 Introduction to circuit composition ......................... 8 5．The usage of FC-303 radio .............................. 8 5.1 Power supply ................................8 5.2 Connect with PC .............................. -
Page 4: Fc-303 Radio General Introduction
SMT technology, product highly integrated. The radio selected high-quality components of the production, which has excellent performance and reliable quality characteristics. FC-303 radio work in 450MHZ～470MHZ, support 16 frequency points, the user could configure the use of the actual situation. The radio complies with FCC standards. -
Page 5: Transmitter Index
SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 5/18 3）Audio distortion: ≤3% 4）Adjacent channel selectivity: ≥65dB 5）Spurious suppression: ≥70dB 6）Intermodulation suppression: ≥65dB 2.3 Transmitter index 1）RF output power: 2W 2）Adjacent power: ≥70dB 3）Modulation limit: ≤±5KHZ(Broad band) ≤±2.5KHZ(narrow band) 4）MIC Modulation sensitivity: 10mV 5）Transmitter start time: ≤25ms 2.4 Power supply and power consumption... -
Page 6: Interface Function
SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 6/18 3.2 Interface function Figure 3-2: Interface diagram （1） Antenna port, BNC pedestal, impedance 50Ω （2） J2 Pin,9pin spacing 2.54mm （3） J1 Pin,8pin spacing 2.54mm Figure 3-3: Main device diagram... -
Page 7: Interface Definition
SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 7/18 3.3 Interface definition Table 3-2 Pin J1 definitions Pin No. Pin name Functional description MIC/AF IN Audio signal input（Microphone and data baseband signals） AF OUT Audio signal output, Signal amplitude 200～500mV（Valid values） Transmit control keys, low-level radio transmission, floating or high-level radio reception... -
Page 8: 4．Introduction To Circuit Composition Principle
5.1 Power supply FC-303 radio use DC power supply, power supply 6.0V, which share power with other equipment, but please choose a better ripple power supply. If conditions permit, you could use 6V / 9W regulator tablets separate power supply. -
Page 9: Connect With Pc
The serial port of the radio is connected to the computer serial port via RSTTL to RS232 interface, or use the company with the dedicated FC-303 test board and the computer serial port connection. The connection diagram is shown in Figure 5-1 Figure 5-1: Serial connection diagram 5.3 External Mode Board Data Communication Connection... -
Page 10: Parameter Settings
5.5 Parameter settings According to Figure 5-1, the radio and PC connected to open the FC-303 radio host computer software, the basic parameters could be read settings. For example: channel number switching, channel frequency changes, squelch level settings. -
Page 11: Channel, Interface, Data Format Setting
The frequency of the channel users could be placed according to their need. You could also use the factory settings channel. FC-303 radio’s 16 channels be set by software to switch, you could also lead out through the radio I / O port hardware switch, you could choose two switching mode, that is, Hardware / Software. -
Page 12: Introduction To Radio Functions
SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 12/18 Channel 14 Channel 15 Channel 16 Note: Switch is "0", that is low, 0V level. The switch is "1", mean high, 3.3V level. 5.8 Introduction to radio functions 5.8.1 Read the device The device attributes must be read before configuring the parameters, including the readable module model, firmware version, frequency range, and series code. - Page 13 SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 13/18 Support 83 digital sub-audio, digital sub-audio list is as follows Figure 5-6 CDCSS frequency table 5.8.6 Channel control mode Optional DIP switch or software configuration mode, the default is DIP switch mode. 5.8.7 Current channel setting In the DIP switch mode, one of the 16 channels can be selected as the current channel by the DIP switch.
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Page 14: Baseband Signal Specification Definition
5.11 Receive signal and receive field strength output FC-303 radio can output a wide range of field strength values for the user to use the RF signal indication analysis, the interface J1 9 pin for the RSSI output, the specific data in Table 5-2. -
Page 15: Antenna Configuration
5.12 Antenna configuration The FC-303 radio meets the needs of the user for a variety of antennas. Our company has a variety of special antenna, about antenna shape and performance of the details, please consult the marketing department. The main choice of the user's antenna has SMA-type connector external whip antenna and BNC-type connector outside the suction sucker antenna two categories. -
Page 16: Pcb Diagram
SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 16/18 6. PCB diagram Figure 6-1: PCB dimensions Figure 6-2: Schematic representation of the front element... -
Page 17: Common Troubleshooting
SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 17/18 Figure 6-3: Rear image of the back component 7. Common troubleshooting Fault phenomenon Cause of failure and troubleshooting Not working a、 Radio power is not connected. Please check the power interface b、 Radio damage. Please change the radio No digital transmission a、... -
Page 18: Factory Default And Configuration
SHENZHENG FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD. 18/18 8. Factory default and configuration 8.1 Factory configuration Factory parameter setting Factory accessories Project Parameter Project Quantity Standard configuration Serial baud rate 9.6Kbps Manual Optional Check Digit Antenna Optional 8.2 Factory default frequency table...
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