Basic Info.
Communication Distance
<8km
Product Description
SR_FRS_4WV
Walkie talkie module/Data transfer module
136M-174M / 4W
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1. Product Outline
SR-FRS-4WV(VHF) is a low cost but high performance integrated walkit talkie module.
It is not only used for voice intercom, but also used for data/SMS transfer; up to 80 byte can be sent at one time; it is compliance with the standard UART transfer protocol;
2. Product performance
FM demodulation technique Based on digital signal processing technology;
Frequency Range:VHF 136M~174MHZ;
Frequency step:5K/6.25K/12.5K/25K;
RF Output Power: 4W/1W
voice encryption (scrambling): 8 type.
Voice Compression- Expansion ;
SMS Receive /Transformer,The wireless Baut : 1200;
CTCSS(38 group)+ CDCSS(83 group) ;
Automatic elimination tail ;
Volume adjustable(1-9);
Vox level adjustable(0-8);
SQ level adjustable(0-9);
MIC sensitivity level adjustable(1-8)
The ultra low power dissipation in Sleep Mode(0.1uA);
Power supply :DC 3.3~5.0V
size:60 X 90 MM
Communication distance:more than 7KM at open area
Applications:
Portable intercom and paging systems;
Wireless data transmission;
Mobile phones and other embedded in radio functions product .
Portable walkie-talkie,
Outdoor sports equipment,
Building security,
Audio monitor system
3. Module Pin assignment
3.1 Module connector
HRSFH34SRJ0.5
3.2 Module pin function define
| | |
MIC_IN | 1 | MIC input |
NC | 2 | NC |
VCC | 3 | DC powe : 3.3-5V, recommend: 4V. |
GND | 4 | GND |
PTT | 5 | 1: receive; 0: transmite |
TXD | 6 | TXD for UART |
RXD | 7 | RXD for UART |
SQ | 8 | Squelch control 0: active 1: inactive |
NC | 9 | NC |
PDN | 10 | Module power enable, 0=SLEEP ; 1= Working; It must be set high level when working; |
AF_OUT | 11 | Audio output |
P00 | 12 | Program port |
GND | 13 | GND |
H/L | 14 | RF Power select: NC: 4W 0: 1W It do not be connected to a high level. |
P01 | 15 | Program port |
GND | 16 | GND |
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Comment:
1) please contact us for get the complete spec.and <serial communication protocol>. Also, we can provide the demo code ;
2) We can provide the technical support for your development..
3) there are 3 type demo board for the module test and evaluation, please find it from the product list or contact us to get the spec.
Address:
No. 623, Block B1, Huayuan Technology Innovation Park, #168 Baoyuan Rd, Baoan District, Shenzhen, Guangdong, China
Business Type:
Manufacturer/Factory
Business Range:
Consumer Electronics, Electrical & Electronics, Industrial Equipment & Components, Toys
Company Introduction:
We are design house. We focus on walkie talkie module/two way radio module design, produce, and sale;
1. Analog module: UHF (0.5W, 1W, 2W, 4W)
VHF (0.5W, 1W, 4W)
2. DMR digital module:
UHF(2W, 4W, 5W_full duplex)
3. Demo board of module;
4. Children Toy walkie talkie module;
5. We provide full technical support for both software and hardware;