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SR105V VHF (136M-174M) Analog Walkie Talkie Transceiver /Data transfer Module

DWM23070501

SR105V (VHF:136M-174MHZ) which functions have been enhanced and pinouts/commands are compatible with FRS-0W5V is an ultra-compact and high-cost performance wireless voice intercom and long-distance data transmission module. 

$7.00
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Description

SR105V (VHF:136M-174MHZ)  is an ultra-compact and high-cost performance wireless voice intercom and long-distance data transmission module. It has a high-performance radio frequency transceiver chip, microcontroller and radio frequency power amplifier. The external controller can set the module operating parameters and control the entire module transceiver through standard UART (TTL level) communication. The module only needs an external antenna, MIC and audio amplifier to form a complete intercom or digital transceiver. After setting the module parameters, it can be powered off and saved. In simple applications, an external single-chip microcomputer is not required.

Features:

•Based on digital signal processing technology modulation and demodulation technology;

•Frequency range:136M-174MHZ;

•Frequency stepping optional: 5K/6.25K/12.5K/25K; 

•RF output power: 0.5W 

•Voice encryption (frequency modulation) function: (7 options)   

•Short message SMS send and receive (remote control, data transmission) function;  

•Signal strength RSSI query 

•DTMF transmission, demodulation function (if needed, please contact customization)

•Built-in CTCSS (38 groups), CDCSS (83 groups) encoding and decoding, support normal and reverse phase; 

•Automatic squelch function;  

•Digital volume control: (1-9 levels) adjustable; 

•Voice-activated hands-free call trigger sensitivity: (0-8 levels) adjustable; 

•Static noise level: (0-8 levels) adjustable; 

•MIC sensitivity adjustment: (1-8 levels) 

•Transmit timing TOT, 1-9 minutes can be set 

•High receiving sensitivity: -121dBm;

•Ultra low power consumption (sleep mode): (0.1uA);

•Voltage operating range: 3.3V~5.0V, recommended operating voltage 3.7V-4.2V, the power supply must provide more than 0.5A current  

•Ultra small size: 15*25*3.0mm;

•Reference communication distance: open area 2-3 km;  

The actual communication distance depends on (transmit power, receive sensitivity, antenna length, placement/matching, usage environment, etc.).

Application:

1. Portable intercom and paging system; 

2. Long distance wireless remote control, data transmission system; 

3. Mobile phones and other products embedded intercom functions brand new design 

Please note that:

SR105V pins/instructions are compatible with FRS-0W5V, and the functionality has been enhanced. 

There is a slight difference in the instruction response time.

In the group setting command, the setting positions of the receiving frequency and transmission frequency have changed.

Module pin assignment

Pin name

Pin number

Function description

GND

1

GND

PD

2

Sleep control

0 into sleep state

1 Running

PTT

3

PTT control

1Receive.

0Transmit

AF_OUT

4

Audio output

SQ

5

Squelch control

0: active

1: inactive

GND

6

GND

GND

7

GND

MIC_IN

8

Microphone input

TXD

9

UART_TXD

RXD

10

UART_RXD

GND

11

GND

ANT

12

Rf Antenna input.

GND

13

GND

BAT

14

Power supply: DC 3.3V - 5V

Typical application Block diagram   

Typical application Block diagram

Useful Link:

AT Command for UHF/VHF Walkie Talkie radio module

Product Details
DWM23070501
140 Items
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Reference: DWM23051301

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SR105V VHF (136M-174M) Analog Walkie Talkie Transceiver /Data transfer Module

SR105V (VHF:136M-174MHZ) which functions have been enhanced and pinouts/commands are compatible with FRS-0W5V is an ultra-compact and high-cost performance wireless voice intercom and long-distance data transmission module. 

Write your review

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