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
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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

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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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4.2.2 Input Channel Data
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, Narrow or Wide according to each
channel.
Fig. 4 Feature Column
Double-click on the any window inside red-rectangle area to set Rx,Tx frequency, Rx, Tx option for each
channel.
4.2.2.1 Power
1-5 output power can be programmable for each channel.
4.2.2.2 Bandwidth
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150. 150.
150. 150.

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User can decide the channel spacing in this feature with optional 6.25KHz (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 corresponding strength are shown as below:
L1: 0.15uV
L2: 0.25uV
L3: 0.35uV
L4: 0.45uV
L5: 0.55uV
4.2.2.4 CTCSS/DCS and Switch
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CTCSS/DCS
User can encode tones with CTCSS/DCS according to options shown in the picture. The feature is not available
for high speed data transmission.
Switch
When we use radio remote: the Switch function can be use to change a logic from +5V to 0V minimum.
The judging condition is long period of 260Hz, sine wave 300 Ms.
4.2.2.5 Scan
This feature allow user to decide scan mode and establish channel scan list. Radio 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 will stop on that channel and you will monitor
the signal or hear the conversation. When the signal or conversation is disappeared, the radio continues to scan.
4.2.3 System Configuration
4.2.3.1 Channel Control Mode
Radio’s channel can be selected by inner Dip(4) switch(HW) or serial command inputted from our PC
software(SW). Only in SW control mode, channel can be selected in “Channel” column.
4.4.3.2 Working Channel
In this column, user select current channel for working.
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4.2.3.3 Second ColumnFeatures
4.2.3.3.1 LED Status Indicator
The LED indicator gives realtime status of the radio's operation. Red for TX, and green for RX.
4.2.3.3.2 TX Protection
This feature, when enabled, limit the amount of time that user can continuously transmit. The time can be set
from 1 second to 60 seconds. When timeout, 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-302V radio output voice via SPK Pin with 9 levels volume. User is able to select appropriate volume for the
connected external speaker in this feature.
4.2.3.3.4 Power Save Mode
Here, you can enable Power save mode or disable. When enabled, radio will automatically switch between
Sleep and Standby to lower power consumption. The time of Sleep and Standby can be set in “Power save
time”.
However, for supporting fast attack time between TX and RX, the radio will keep in RX mode and the PLL
keep working even in power save mode. Only the intermediate frequency circuit is off.
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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
4.2.4.4.1Audio-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 Modem
Setting the signal coupling modes(AC coupling or DC coupling), from the modem baseband signal to the radio
analog modulation interface.
4.2.4.4.5 Channel Scan
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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
3 ---------priority scan, carry with tone
If normal scan is enabled, radio will scan from initial channel to channel 16 sequentially. If priority scan is
enabled, radio will scan the prioritized channel with more times. Prioritized 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.
4.2.4.4.6 Others
As mentioned above, the BUSY signal, SWITCH and CTCSS/DCS will only be available after 2 minutes when
user finish programming setting. If you click here, user does not need to wait the 2 minutes.
5 Maintenance and Repair
5.1 Dimensions
Fig.17 Top View
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Fig. 18 Exterior View
5.2 Removing & Replacing the Upper Cover
Removing the Upper Cover
1. Unscrew the four upper cover mounting screws located on the upper cover 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 thePower Board & ShieldPlate
Removing the Power Board & Modem Board Assembly & Shield Plate
1 Removing the Upper Cover (refer to Removing & Replacing the Upper Cover )
2 Disconnect the DB15 pin connector on CON14.
3 Unscrew the 4 monting screws.
4 Remove the Main Board Assembly.
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5 Remove the Shield Plate.
To replace the Main board & Power board Assembly:
1. Reserve the steps taken to remove the Main board Assembly & Power board & Shield Plate.
Fig. 20-Power board & Modem board Assembly Removal
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, Modem Board & Shield Plate
(refer to Removing the Power board & Modem Board Assembly & Shield Plate)
3 Unscrew the 4 mounting standoffs.
4 Unsolder the antenna connector cable.
5 Remove the Main Board Assembly.
To replace the Main Board Assembly:
1. Reverse the steps taken to remove the Main Board Assembly.
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Fig. 21-Main Board Removal
5.5 Repairable/Replaceable Parts List
Fig. 22 Exploded View
19

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6 Accessories Available
Please contact the Friendcom sales team for accessory information.
[e-mail]
Tel: [phone]
20
Notice:
FCC Radiation Exposure Statement:
The equipment compliances with RF exposure guidelines. This equipment should be installed and
opreated with minimum distance 150cm between the radiator & your body, within the range the
device supports the highest gain of antenna is 9.0dBi, if the antenna gain over 9.0dBi is not
suggested to use within 150cm distance.