FRIENDCOM FC-302V User manual

Shenzhen Friendcom Technology Development Co., Ltd.
FC-302V Radio
User Manual
Address: 6/F,17 Building, Guangqian Industrial Park, Longzhu Road, Xili Town, Nanshan
Shenzhen, China
Tel: [phone] [phone]
Fax: [phone]
E-mail:
[e-mail]
Website: http://www.friendcom.cn
Shenzhen Friendcom Technology Development Co., Ltd.

Content
1 Product Description...........................................................................................................................................3
2 Technical Specifications ...................................................................................................................................4
3 Interface of the Radio.......................................................................................................................................5
3.1 Pin Definition ...........................................................................................................................................6
4 Application Instruction......................................................................................................................................7
4.1 Hardware Installation ...............................................................................................................................7
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& Shield Plate .....................................................................17
5.4 Removing & Replacing the Main Board ...............................................................................................18
5.5 Repairable/Replaceable Parts List
.........................................................................................................19
6 Accessories Available .....................................................................................................................................20

Shenzhen Friendcom Technology Development Co., Ltd.
1 Product Description
FC-302Vis a synthesized 5-watt FM transceiver module, which is designed for data transportation and
voice communication. For the voice communication, it can supportselected pre-emphasis,squelch and audio
amplifier. The radio is PLL(PhaseLock Loop Synthesizer) /microprocessor controlled. The application of two-
point modulation with good low-frequency responsein the radio alsomakes it a competitive
choice for
9600bps rate data application. Compact dimension and wide range DCsupportmake 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/DCS
• Fast start-up time: 5ms
• SQ programmable via PC
• Pocsag Modulation
• PC programmable & Software tune & Calibration
Applications:
• 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
3

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2Technical Specifications
General Specification
Working Frequency
136MHz
～
174MHz
Channel Spacing
6.25KHz/12.5KHz Programmable
Modulation Type
FM
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 Female(optional male interface)
Transmitter Specification
RF Power
6.25KHz Channel Spacing
1W/2W Programmable
12.5KHz Channel Spacing
1W/2W/3W/4W/5W Programmable
Frequency
Deviation
6.25KHz Channel Spacing
＜
1.25KHz
12.5KHz Channel Spacing
＜
2.5KHz
Subsonic
0.5KHz
Adjacent
Channel
Power
6.25KHz Channel Spacing ＜-60dBc
12.5KHz Channel Spacing ＜-70dBc
Conducted Spurious Emission
＜
1GHz,
＜
-36dBm
＞1GHz,＜-30dBm
Modulation
Sensitivity
Voice
8~15mV
Data
80~130mV
TX SNR
6.25KHz Channel Spacing
＞
30dB
12.5KHz Channel Spacing
＞
40dB
Receiver Specification
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RX Sensitivity (12dB SINAD) ＜-119dBm Extreme＜-115dBm
ACS
＞
70dB
Image Rejection
＞
70dB
IF Rejection
＞
70dB
Spurious Rejection
＞
70dB
Intermodulation Suppression
＞
65dB
Conducted Spurious Emission
＜
-57dBm
Receiving Audio Distortion
＜
5%
RX SNR
6.25KHz Channel Spacing
＞
30dB
12.5KHz Channel Spacing
＞
40dB
Audio Output Power
0.5W @ 8Ωload
3Interface of the Radio
As shown in above picture, the pin definition of CON-14-FEMALE is related with internal devices
(Modem board or Bridge board). Refer to Table 1.
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Table 1
3.1 Pin Assignment
As to FC-302V radio,the pin assignment is shownin Table 2.
Table 2
PinName Pin No.Description Remark
AUDIO_IN
（MOD IN）1Audio input. 3KHz LPF,
Modulation sensitivity is 100mV. AUDIO_IN is effective only when PIN
7(MIC) is vacant or with +5V high level.
3KHz LPF filter existed in audio channel.
AUDIO_OUT
（AFOUT）2
Audio output, 3Khz LPF. Output level
at 60% frequency deviation is
250±50mV. This line has an internal
pull
-up resistor to +5V.
PTT3
TX control, active low, only when PTT
is active AUDIO_IN and MIC IN are
effective. This line has an internal pull-
up to 5V.
B+
(9.5～16V DC) 4 Positive pole input from DC power,
nominal +12V.
PROG
(DATA OUT) 5 Programming data output, 5V TTL
BUSY 6
Logical level output to indicate whether
there is a carrier or not. Low lever =
carrier,highlevel=no carrier. This line
has a pull-up to +5V.
MIC IN/RSSI 7
MIC IN: Microphone input.
RSSI: To detect the air signal strength.
Jumper selectable.
Can directly connect to electrets MIC, the DC
voltage of this pin should lower than 3.5V,
then MIC transmission can be activated.
PROG
(DATA IN) 8 Programming data input, 5V TTL
SPK/
POCSAG 9
SPK: Audio output from the audio
amplifier, @ 8Ω.
POCSAG: Totransmit POCSAG code.
Jumper selectable.
AUDIO_IN is effective only when PIN
7(MIC) is vacant or with +5V high level.
3KHz LPF filter existed in audio channel.
10
11
12
13
14 Ground
15
6
NC
GND
NC
NC
NC
NC

Shenzhen Friendcom Technology Development Co., Ltd.
4Application Instruction
Functions of PC(Personal Computer) software, hereafter called “FC-302 QuickSet v0.1.12 ”, will be illustrated.
Main goal of this instruction is to save time for user by supporting exact usage of the software, at the same time,
give a help to user who wants to utilize the radio for another applications. This programming software enables
the various parameters of FC-302V to be read, modified, programmed and printed.
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4.1Hardware Installation
To apply PC software to radio application, FC-302 QuickSet En v0.1.12, programming cable, programming kit
and PC are needed. In this chapter, instruction for connection of the equipment will be illustrated.
4.1.1 System Requirements
Computer
Normal personal computer or faster (recommended)
Operating System
Microsoft Windows XP & Windows 7
Communication Port
One available communication port (COM1, 2, 3 or others)
HardwareAccessories
Programming cable(RS232 to USB)
Programming kit
4.1.2 Connecting to Data Radio
Connection between the PC and the radio for parameter setting
The programming kit is used for connection as shown below.

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No. Descriptions
1 DB15 male connector for radio with DB15 female.
2 Power Supply (DC 12V)
3 DB15 female connector for radio with DB15 male.
4 DB9 female connector for RS-232 interface of computer.
The position of the jumper:
For radio’s parameter setting, user should put the jumper on the position shown as below.
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4.2Operation Instruction
Detailed instruction for channel and system configuration is described. Especially, in input channel data, data
input method for Rx,Tx frequency, Rx,Tx option such as CTCSS, DCS, scan and bandwidth is explained
specifically. In addition, system option such as selection of squelch type, data value setting for power saving
mode, Tx time out time, scan option and modem speed 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 simulated serial port for
data transmission in the first 2 minutes after the radio power on. The CON port is with characteristics of
9600bps, 8N1, TTL. If no valid command is sent from PC, the port will be disabled from serial simulation
function and return to normal BUSY and Switch function.
Initially, click on the shortcut of PC software and then the following window shows up.

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First of all , open the con port. The CON port is with characteristics of 9600bps, 8N1 and click “Open” as
picture shows.
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If user puts mouse cursor on the each icon in 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:
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