2pcs/lot 3km 1W High-integrated VHF | UHF Frequency Band Embedded WALKIE TALKIE Modules SA828 + Antennas

We are an  original manufacturer  with more than 10 years experience of researching, developing, producing and selling IOT(internet of things) products such as RF modules, walkie talkie modules and integrated digital sensor modules.Meanwhile, ODM  and  OEM  projects are welcomed. 

SA828 - 2pcs 3km Easy-to-use High-integrated VHF / UHF Frequency band Embedded WALKIE TALKIE modules+antennas

2pcs VHF(134 - 174MHz) all-in-one walkie talkie module SA828

2pcs 150MHz antennas

 If you need UHF(400~480MHz)frequency band, just leave message please. 

SA828 is an all-in-one professional walkie-talkie module in small size. It is very easy to use with powerful function. This module has full function of a professional walkie-talkie and can talk with any analog walkie-talkie in the market. With the small size, it can be easily embedded into instrument, portable and handheld device. SA828 works well in the hot/cold environment with the KDS 1PPM TCXO. The features of excellent antenna match network, good RF amplifier, high RF sensitivity allow its communication easily to achieve over 3Km in open area.

Rotary switch for channel selection, EEPROM,Audio Amplifier, RF Amplifier, PTT key, Antenna socket are all included in such a small size module. Besides, all parameters (CTCSS, CDCSS, SQ, Predefined channels etc) can be easily modified either by PC software or command using UART interface. With the embedded audio volume turning circuit, user can only solder a variable resistor on Pin16, Pin17 to adjust the volume steplessly.

There are two frequency bands of SA828:

SA828-U and SA828-V. The only difference is the frequency range. The others are same, including module size, interface, software protocol, etc. The two modules' frequency ranges are:

SA828-U: U band, 400 -- 480MHz

SA828-V: V band, 134 -- 174MHz

Product Picture:

Features:

Frequency range: 400~480MHz/134~174MHz

Solely TX and RX frequency

12.5/25KHz bandwidth selection

1W Output Power

3~5Km distance in open aera

High Sensitivity: -124dBm

High Integrated with ultra small size

166 CDCSS, 38 CTCSS

8 SQ

High / low output power selection (500mW-1W)

Embedded EEPROM, data saved

even power off 1ppm TCXO

Application:

Small size walkie-talkie

Pocket / handheld device

Security system

Instrument

Outdoor sport product

Audio tracking and control system

Specification:

Internal diagram:

Typical application schematic:

Pin out definition:

Parameter setup:

Mechanical dimension:

Communication protocol:

The parameters of SA828 can be modified with standard UART interface. The interface voltage is TTL 3.3V. User can contact your sales engineer for detailed communication protocol.