کیت کامل فرستنده و گیرنده صدا واکی تاکی فرکانس 400 تا 470 مگاهرتز توان 2 وات با SR_FRS_2W(بدون باطری)

کیت کامل فرستنده و گیرنده صدا واکی تاکی فرکانس 400 تا 470 مگاهرتز توان 2 وات با SR_FRS_2W(بدون باطری)

1.    Outline


FRS-DEMO-B is designed for Walkie Talkie transceiver module SR-FRS-1W and SR_FRS_0W5 demonstration, it can be used for  both UHF（400M-480M）and VHF (136M-174M);it also can be used for voice intercom and data transfer  demonstration;  it is easy to set all the module parameter via the USB interface; \When select the channel, it would voice broadcast the current channel number; You may quickly evaluate our module performance by the demo board, Just make a little modify, it can be directly applied into your real production. 


2.      The Demo board performance：
1- The power switch, volume adjust , Channel selection switch 3 in 1;16 channels can be selected by the encoder switch;  
2- It is easy to switch the VOX(Sound control transmit) by a VOX switch, the VOX level can be set via the PC;
3- Voice broadcast for the channel number, Chinese/English could be selected. 
4- Monitor function by press [MON]key;
5- Voice intercom demo;
6- Data transfer demo;
7- One group user interface: SQ, LINE_IN,  LINE_OUT, PTT,  GND
8- Could restore to the factory  parameter setting
9- The demo board parameter can be set via the USB interface, for the setting instruction please contact us to get the 《SR_FRS_1W UART communication protocol》 and《SR_FRS_0W5 UART communication protocol》
  • Tx frequency, Rx frequency can be set alone;
  • Tx CTCSS, Rx CTCSS can be set alone;
  • Rf output power can be set by software;
  • Commanding setting;
  • Transmit Busy lock setting;
  • Squelch level setting
  • GBW bandwidth setting
  • MIC sensitivity setting
  • Scramble setting
  • Volume setting
  • VOX level setting
  • TOT setting(Timer of transmit)
  • Auto power save setting
  • Data transfer
  • All setting can be kept when power off

3. The demo board function define picture
1) The demo board size: 45 mm X 90 mm; 
2) DC power supply :3.3V-5V; 
3) USB type: MICRO USB; 
4) User interface：SQ, Line _in, Line_out, PTT, GND;    When use Line_in，Should push the MIC selection to  “EXT”position；
5）LED：      
Red ： DC power indication；   
Yellow： Transmit status indication   
Blue：  Receive signal indication 


4. The demo board operation 
4.1     The voice intercom 
1.  Please mount the power, antenna, speaker; Push the MIC select switch to ‘INT’ position;
2.  Power on the demo board , the power indication LED(red) turns on, Then rotate the volume adjust switch to a proper position; After about 1 seconds, the demo board would voice broadcast the current channel number;
3.  Adjust the channel selection switch, ensure the transmitter and receiver are at the same channel;
4.  Hold on the [PTT] key, the transmit indication LED(yellow) turns on, You may talk to the opposite side; After finished the talking, release the [PTT] key, the system automatically into the receive statues, When received the signal from the opposite side, The receive indication LED(blue)turns on;
5.  At weak signal area, you may hold on the[MON] key, the system into monitor mode, release the [MON]key, the monitor mode is cancelled;
6.  The frequency and the CTCSS for every channel can be set alone via the USB interface;


4.2 The sound control(VOX) 
1.  Push VOX switch to ON position, the VOX function is enabled, You may talk without [PTT]key, the system will automatically into transmit status.;
2.  During the VOX valid status,The transmit indication LED(Yellow) turns on;When VOX enabled, the [PTT] key is still valid;
3.  Push VOX switch to OFF position, the VOX function is disabled, you can only intercom by press the [PTT] key;
4.  The VOX sensitivity can be set via the USB interface;


4.3   Earphone
1.   The demo board can use the earphone, The speaker, microphone, and [PTT]  key are integrated in the earphone, You may make the intercom just by operate the earphone;
2.   Please be noted that the earphone socket may not be compatible with the 3’rd party earphone;3.   If you need the earphone, please contact us;


4.4   User interface
1. The demo board provide some useful interface for the user SQ:       0: with valid receive signal; 1: without receive signal; Line_in： May connect to an external Microphone, or an external audio source;           MIC select switch” must at the “EXT” position;Line_out：The Frs module audio frequency directly output, Not via the audio amplify;PTT：     0： Transmit; 1：Receive;GND：     GND; 



4.5   Restore to the factory setting
1.  Power off；
2.  Press the [PTT] and hold on, then Power on; When the transmit indicate LED fast blink, you may release[PTT] key；
3.  When finished the system initialization，Transmit indication LED turns off，The system into the standby mode;


4.6 Data transfer/SMS transfer
1.  Connect the Demo board USB and the PC usb by MICRO USB cable;
2.  Send command：AT+DMOMES=[Length]xxxxxxxxxxxFor the detail of the command ,please refer the UART communication protocol;For how to make the data transfer please refer “


4.7 USB interface for parameter setting
USB interface for parameter setting1.  Firstly, you must install the USB driver,please download from the link: http://www.prolific.com.tw/US/ShowProduct.aspx?p_id=225&pcid=41 

NOTES: The USB 2 COM chip for this demo board is PL2303HX, it can only support the OS to WIN7, if you want support the OS to WIN8, please replace the PL2303HX with PL2303TA; 2.   Power on the demo board, Connect the demo board and the PC with the Micro USB cable. 3.  The COM port parameter setting          
Baut rate：  9600 Data:        
8parity bit:    NoneStop：       


1 4.  Demo board parameter 
setting1) When you want set the frequency for some channel, You must rotate the channel selection switch to proper channel position firstly; Here is a example for GROUP COMMAND Setting：AT+DMOSETGROUP=0,450.0500,450.2500,1,2,2,0The parameter contents are as below in turn：       0：Narrow       450.0500：Transmit frequency (MHZ)    450.2500：Receive frequency (MHZ)       


1：Receive CTCSS       
2：Squelch level       
3：Transmit CTCSS
 

       0：Rf output power :1W, Companding:OFF, Busy lock:OFF
  
The other parameter setting is same as the Group setting, Please refer 《SR_FRS_1W UART communication protocol》 and 《SR_FRS_0W5 UART communication protocol》


5.  The default parameter for demo board：


5.1 UHF(400M-480M) demo board
1.  Band width：Narrow
2.  Squelch level: 2
3.  VOX sensitivity：64.  MIC sensitivity：65.  Volume：66.  Scramble：OFF7.  Tx output power：1W (valid only for SR_FRS_1W) ;8.  Companding：OFF9.  Busy lock：OFF10.TOT(Timer of Transmit)：3minutes11.The default frequency and CTCSS

ChannelTransmitfrequency（MHZ）Receive frequency(MHZ)TransmitCTCSSReceiveCTCSS
1450.0500450.050000
2450.0750450.075000
3450.1000450.100000
4450.1250450.125000
5450.1500450.150000
6450.1750450.175000
7450.2000450.200000
8450.2250450.225000
9450.2500450.250000
10450.2750450.275000
11450.3000450.300000
12450.3250450.325000
13450.3500450.350000
14450.3750450.375000
15450.4000450.400000
16450.4250450.425000



5.2  VHF(136M-174M)demo board
1.  Band width：Narrow;
2.  Squelch level: 2;
3.  VOX sensitivity：64.  MIC sensitivity：65.  Volume：66.  Scramble：OFF7.  Tx output power：1W (valid only for SR_FRS_1W) ;8.  Companding：OFF9.  Busy lock：OFF10.TOT(Timer of Transmit)：3minutes11.The default frequency and CTCSS

ChannelTransmitfrequency（MHZ）Receive frequency(MHZ)TransmitCTCSSReceiveCTCSS
1150.0500150.050000
2150.0750150.075000
3150.1000150.100000
4150.1250150.125000
5150.1500150.150000
6150.1750150.175000
7150.2000150.200000
8150.2250150.225000
9150.2500150.250000
10150.2750150.275000
11150.3000150.300000
12150.3250150.325000
13150.3500150.350000
14150.3750150.375000
15150.4000150.400000
16150.4250150.425000



ChannelChina（MHZ）American(MHZ)European(MHZ)Australia(MHZ)
1409.7500462.5625446.00625476.625
2409.7625462.5875446.01875476.650
3409.7750462.6125446.03125476.675
4409.7875462.6375446.04375476.700
5409.8000462.6625446.05625476.725
6409.8125462.6875446.06875476.750
7409.8250.462.7125446.08125476.775
8409.8375467.5625446.09375476.800
9409.8500467.5875 476.825
10409.8625467.6125 476.875
11409.8750467.6375 476.900
12409.8875467.6625 476.925
13409.9000467.6875 477.000
14409.9125467.7125 477.025
15409.9250  477.050
16409.9375  477.075
17409.9500  477.100
18409.9625  477.150
19409.9750   
20409.9875