FC-301/D RF Link Module USER MANUAL SHENZHEN FRIENDCOM TECHNOLOGY DEVELOPMENT CO.,LTD ADD: 6/F, 17 Building , Guangqian Industrial Park, Longzhu Road, Xili Town, Nanshan, Shenzhen City 518055 P.R.CHINA. TEL: +86-755-86026600 +86-755-86026192 FAX: +86-755-86026300 E-MAIL : faq@friendcom.com WEBSITE: www.friendcom.
MANDATORY SAFETY INSTRUCTIONSTO INSTALLERS AND USERS Use Only manufacturer or dealer supplied antennas. Antenna minimum safe distance: 35 cm. Antennas used for this transmitter must not exceed an antenna gain of 3 dBi. The FCC (Federal Communications Commission) has adopted a safety standard for human exposure to RF energy which is below the OSHA (Occupational Safety and Health Act) limits.
Caution: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Note: The manufacturer is not responsible for any radio or tv interference caused by unauthorized modifications to this equipment. Such modifications could void the user’s authority to operate the equipment.
TABLE OF CONTENTS TABLE OF CONTENTS ...................................... 01 .. INTRODUCTION...........................................02 FEATURES................................................02 SPECIFICATION ...........................................02 WIRING DIAGRAM.........................................8 TROUBLESHOOTING GUIDE................................10 FACTORY DEFAULT SETTING ..............................
The FC-301/D RF Link Modules from Friendcom utilizes the latest technology in its design and manufacturing. It’s PLL (Phase Lock Loop Synthesizer) / microprocessor controlled, and offers one to five watts of power with 16 channel capability. Multiple functions including AC audio coupling, 1200 to 9600 baud rates GMSK and FSK modulation capability are standard in this fully programmable wide bandwidth RF Link Module units. FEATURES ● 16 Channels ●1 - 5 Watt Programmable RF Output ● 12.
Intermediate Frequency………………………… 45.1MHz & 455KHz Number of Channels…………………………….16 Frequency Source ……………………………….Synthesizer Operation Rating…………………………………Intermittent 5:5:90 ( TX: RX: Standby ) Power Supply ……………………………………12.5V DC Nominal Voltage Temperature Range Storage………………………………………from –40°C to +80°C Operating……………………………………from –30°C to +60°C Current Consumption Standby (Muted) ……………………………≤40mA Transmit 5 Watts RF Power …………………< 1.5A Transmit 1 Watt RF Power…………………..<0.8A Dimensions……………………………..
Time: 5 10 30 sec Power: >95% >95% >90% Frequency Error…………………………………..±2.5 ppm Frequency Deviation: 12.5kHz Channel Spacing……………………≤±2.5kHz, Audio Frequency Response……………………. Within +1/-3dB of 6dB octave @300Hz to 2.55kHz for 12.5kHz C.S Adjacent Channel Power 12.5kHz ………………………………………< 60 dBc @ Nominal Condition < 55 dBc @ Extreme Condition Conducted Spurious Emission …………………….< -36 dBM Modulation Sensitivity……………………………. 100mV RMS@60% peak Dev. Hum & Noise: 12.5kHz Channel Spacing………………..
Sensitivity(12dB Sinad) ………………………….UHF <-117 dBm, VHF<-118dBm@Nom.Condition Amplitude Characteristic………………………….<±3dB Adjacent Channel Selectivity: 12.5kHz Channel Spacing…………………….≥60dB@Nom. Spurious Response Rejection………………………70dB Image Response…………………………………… > 70 dB IF Response ………………………………………. >70 dB Others………………………………………………> 70 dB Intermodulation Response Rejection………………≥65 dB Conducted Spurious Emission @ Nominal Conditions………<-57 dBm AF Distortion ………………………………………………....<5% @ Nom.
2 nd <10 ppm for –30°C to +60°C L.O. Frequency Aging Rate………………………….±2 ppm/year REFERENCE CRYSTAL Frequency…………………………………………………. 13MHz Temperature Characteristic……………………………+/- 2.5PPM from –30°C to +60°C Aging Rate…………………………………….< 2ppm/year in 1 st year <1ppm/year thereafter Lock Time …………………………………………………<10 ms TX to RX ………………………………………………… < 20 ms RX to TX ………………………………..………………..
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Pin Function Type Pin 1 Audio TX) Pin 2 Audio out (Data Output RX ) 150mV-250mV Demodulation Output Pin 3 PTT 0 V/+5V in(Data Input Input Range 200VP-P 300VP-P Description ------ External Modulation Input Transmit Enable 0V - Radio in Transmit status 5V Radio status(Default ) in receive Pin 4 GND GND 0V GND Pin 5 B+ V+ 10-15V Power Supply(+12.5V typical ) Output Open/Short RF Carrier Detect Pin 6 SQ Open -- low level, Short -- high level (Default).
TROUBLE SHOOTING GUIDE SYMPTOM S Unit does not work Bad RX Sensitivity CAUSES 1.No power incomplete connection 2. No input voltage of 5V or 8V 3. CPU does not work 4. EEPROM fail 5. Channel error 6. PLL error 1.Antenna signal short-circuit 2.Antenna signal open-circuit 3. Bad electronic turner 4. Defective high frequency amplifier 5. Bad mixer 6. Local signal amplitude become small 7. Bad 1st and 2nd intermediate COUNTERMEASURES 1.Check COM1 connection 2. Check IC500、IC504 3. Check IC510 4.
FACTORY DEFAULT SETTING FC-301/D UHF Default Frequency and Tx Power Channel RX Frequency TX Frequency TX Power 1 400.1250MHZ 400.1250MHZ 5W 2 405.1250MHZ 405.1250MHZ 5W 3 410.1250MHZ 410.1250MHZ 5W 4 415.1250MHZ 415.1250MHZ 5W 5 420.1250MHZ 420.1250MHZ 5W 6 425.1250MHZ 425.1250MHZ 5W 7 430.1250MHZ 430.1250MHZ 5W 8 435.1250MHZ 435.1250MHZ 5W 9 436.1250MHZ 436.1250MHZ 5W 10 440.1250MHZ 440.1250MHZ 5W 11 445.1250MHZ 445.1250MHZ 5W 12 450.125MHZ 450.