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                    Shenzhen Friendcom Technology Development Co., Ltd. 

 

15

 

Power Save Time 

When Power save is enable, sleep time can be programmed from 20 to 500 ms in 20ms increment with 1~25 
optional values. That means 1 equals to 20 ms, 2 equals to 40ms ....... 25 equal to 500ms 
Standby time can also be programmed from 40 to 600 ms in 40ms increment with 
1~15 optional values. That means 1 equals to 40ms, 2 equals to 80, ..... 15 equals to 600ms. 
 

4.2.3.3.5 Carrier Detect Busy Signal 

 

This feature is to set active level of BUSY Pin, high or low. The status is transferred to user for the connection 
with external devices. 
 

4.2.3.4 Third Column Features 

 

4.2.4.4.1 Audio-out 

Output wave for Audio-out can be selected as square wave or sin wave. 
 

4.2.4.4.2. Side Tone 

When enabled, user can hear his own voice while transmitting voice. The sidetone volume is fixed at level 2 
de-emphasis volume.

 

 

4.2.4.4.3 RSSI 

To detect the air signal strength over the air

 

Unit

dBuv

 

 

4.2.4.4.4 Channel Scan 

Scan modes are set up in “Option” and shown as below 
0 ---------normal scan with carry only 
1 ---------normal scan, carry with tone 
2 ---------priority scan, carry only 

Summary of Contents for FC-302 U2

Page 1: ...anual Address 6 F 17 Building Guangqian Industrial Park Longzhu Road Xili Town Nanshan Shenzhen China Tel 86 755 86026600 86 755 23230518 Fax 86 755 86026300 E mail support friendcom com Website http...

Page 2: ...1 Hardware Installation 6 4 2 Operation Instruction 8 5 Maintenance and Repair 16 5 1 Dimensions 16 5 2 Removing Replacing the Upper Cover 17 5 3 Removing Replacing the Power Board Bridge Board Shield...

Page 3: ...nge DC support make it flexible to use Features CE FCC AS NZS 4295 2004 certified Programmable 16 channels with Dip Switch Configurable power save feature Optional external channel configuration CTCSS...

Page 4: ...Attack Time 5ms RX to TX attack time 5ms Frequency Error 2 5ppm Antenna Connector BNC 50 External interface DB15 DB9 optional male interface Transmitter Specification RF Power 6 25KHz Channel Spacing...

Page 5: ...el Spacing 40dB Audio Output Power 0 5W 8 load 3 Interfaces of the Radio DB 9 and DB 15 are our basic interfaces of FC 302 U2 radio as shown in below pictures Standard DB9 interface Standard DB15 inte...

Page 6: ...t from the audio amplifier 8 SPK is effective when Pin 7 connect to MIC or GND MIC PIN power than 3 5V TXD Radio 10 The serial data is output from this pin used for radio parameter setting 5V TTL Sign...

Page 7: ...B Programming kit 4 1 2 Connecting Connection between the PC and the radio for parameter setting The programming kit is used for connection as shown below No Descriptions 1 DB15 connector Connected ra...

Page 8: ...of squelch type data value setting for power saving mode Tx time out time scan option is detailed 4 2 1 Overall View Pin 6 BUSY and Pin 8 Switch of DB15 connector work as TX end and RX end of simulate...

Page 9: ...Shenzhen Friendcom Technology Development Co Ltd 9 First of all open the con port The CON port is with characteristics of 9600bps 8N1 and click Open as picture shows...

Page 10: ...n tool bar for a second message for function indication is displayed Power on the radio after 5 seconds click on the Read establish the communication with PC and radio As the following picture Warning...

Page 11: ...2 Input Channel Setting In this option part user can input channel selection from 1 to 16 Rx Tx frequency Rx Tx tone option such as CTCSS DCS power switch and make SCAN list and choose bandwidth Narro...

Page 12: ...25KHz Narrow or 12 5KHz Wide channel spacing 4 2 2 3 SQ level Five SQ levels can be select in our radio Level 0 is for fully open mute The audio signal will continuously transmit Other levels with co...

Page 13: ...will start to detect channels and stay on each channel for at least 100ms according to the established scan sequence If a signal or conversation is detected on any channels in scan list the radio wil...

Page 14: ...imeout radio will release PTT pinout If user want to transmit again he or she have to wait delay time set by stop when timeout after the radio released PTT 4 2 3 3 3 De emphasis Volume FC 302 U2 radio...

Page 15: ...Signal This feature is to set active level of BUSY Pin high or low The status is transferred to user for the connection with external devices 4 2 3 4 Third Column Features 4 2 4 4 1 Audio out Output w...

Page 16: ...ritized channel is the working channel before the scan For example if prioritized channel is CH10 and initial channel is CH8 then the scan sequence is CH8 CH10 CH9 CH10 CH10 CH10 CH11 CH10 CH16 CH10 4...

Page 17: ...over of radio To replace the Upper Cover 1 Reserve the steps taken to remove the Upper Cover Fig 19 Upper Cover Removal 5 3 Removing Replacing the Power Board Bridge Board Shield Plate Removing the Po...

Page 18: ...Fig 21 Shield Plate Assembly Removal 5 4 Removing Replacing the Main Board 1 Remove the Upper Cover refer to Removing Replacing the Upper Cover 2 Remove the Power board Bridge Board Shield Plate Refe...

Page 19: ...Shenzhen Friendcom Technology Development Co Ltd 19 Fig 21 Main Board Removal 5 5 Repairable Replaceable Parts List Fig 22 Exploded View...

Page 20: ...for accessory information sales friendcom com Tel 86 755 23230544 FCC Radiation Exposure Statement This equipment complies with RF exposure guidelines This equipment should be installed and operated w...

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