136~174MHz Walkie Talkie Module 1W Power SR_FRS_1WV

136~174MHz Walkie Talkie Module 1W Power SR_FRS_1WV

Model: (WRL-00202)
Status: Unavailable

 

_

 

 

    The SR_FRS_1W (VHF:136M-174MHZ)  is a low cost but high performance integrated walkit talkie module. With built-in high performance micro controller, narrow band rf transceiver and standard Uart interface,it can be easily used and succeed in all the walkie talkie function with good quality voice and long distance transmission. Users only need to connect external audio amplifiers, microphone or speaker with this module ,then it can work as a small walkie talkie with 1W output . In open area, it can come to performance of 3.5Km communication. Simplified interface and ultra small size make this module into a wide range of applications, also can conveniently embed into various handheld devices,to improve the comprehensive performance of end products.

 

      The more important feature is this module support the data transfer

   1)  Data/SMS transfer ability;  up to 100 byte can be sent at one time;  . 

   2)  DTMF transfer , 0-9,A-F can be sent; 

 

2. Product performance 

l        FM demodulation technique Based on digital signal processing technology;

l    Frequency Range:VHF 136M~174MHZ  

l    Frequency step:5K/6.25K/12.5K/25K;

l    RF Output Power: 1W /0.5W selectable;

l    voice encryption (scramble): 8 type.

l    Voice Compression- Expansion ;

l    SMS Receive /Transformer,The wireless Baut : 1200;

l    CTCSS(38 group)+ CDCSS(83 group) ;

l    Automatic elimination tail ;

l    Disable Transmit when busy(BCLO);

l    Volume adjustable(1-9);

l    Vox level adjustable(0-8);

l    SQ level adjustable(0-9);

l    MIC sensitivity level adjustable(1-8)

l    The ultra low power dissipation in Sleep Mode(0.1uA);

l    Power supply :DC 3.3~5.0V

l    Ultra small size:18 * 35 * 3.2MM;

l    Communication distance:up to 3.5 KM in empty field.

Applications 

  portable intercom and paging systems;

  wireless data transmission;

  mobile phones and other  embedded in radio  functions  product 。

 

3.Module package and mechnical size

        (View from bottom)

 

   ( View from Top  )               (  View from Bottom)

 

 

 4.   Module pin assignment

 

 pin name

Pin number

Function description

SQ,

1

Squelch control

0: active

VOX_DET

2

1)  with VOX mode,it is the VOX state indication;

0: Talk finished;

1: Talking;

2)  without VOX,it is the transmitter state indication;

0: receive state

1: transmitter state

 

AF_OUT

3

Audio output

MIC1(NC)

4

NC

PTT

5

PTT control

1:Receive;

0:Transmit

PD

6

Sleep control,

0: into sleep state

1: Running

 

H/L

7

RF transmit power selection;

0: 0.5W;

NC: 1W;

Note: if you want a 1w power ,just leave this pin NC, it can’t be pull high.

BAT

8

Power supply: DC 3.3V -  5V

GND

9

GND

GND

10

GND

NC

11

NC

ANT

12

Rf Antenna input;

NC

13

NC

NC

14

NC

NC

15

NC

RXD

16

UART - Rxd

TXD

17

UART - Txd

MIC_IN

18

Microphone input;

 

 

 

 

 

 5.  Typical application Block diagram    

  5.1 without MCU

 

                                      

 

   5.2  Works with MCU

 

6. Electrical Characteristics 

       For detail specification ,Please  contact us: sales@sunrisedigit.com

 

7. Serial communication protocol  

SR-FRS-1W module has the AT instruction interface, the AT instruction can be used to communicate with or control  the module;the  AT instruction covered all the inquiry  and  control  command;  For detail please refer our company 《SR-FRS-1W  UART communication protocol》

 

8.Comment

1、  The default parameter for this module after power on are as bellow:                                

GBW=12.5KHZHZ,

TFV=140.050MHZ,

RFV=140.050MHZ,

       CTCSS=01, ( For both Transfer and receive)

   SQ=2,

  Scramble:  OFF

  Comexpanding: OFF

  2、 The PTT pin cann’t be pulled to Lo when in data transfer mode.

Write new review
All Categories
Related Articles
There is no article related to this product.
Your browser is Out-Of-Date!
Update your browser to view this website correctly. Update Browser Now
×