NiceRF 2014 New arrival high-integrated Embedded walkie talkie module SA818 UHF/VHF module RDA1846S

2pcs/lot high-integrated Embedded walkie talkie module SA818 VHF band 134-174MHz

SA818 is a low cost and high performance integrated walkie talkie module. This module is the 2^nd generation of the walkie talkie module and the upgraded version of SA808.SA818 comes with built-in high performance microcontroller, narrow band rf transceiver and standard UART interface. It is easy to use. Users only need to add external audio amplifier, microphone and speaker, then it becomes a professional walkie talkie with 1W output. In open area, it can easily achieve 3.5-5Km communication distance. Simplified interface and ultra small size make this module widely used in various applications and conveniently embedded into various handheld devices.

There are two frequency bands of SA818: SA818-U and SA818-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:

SA818-U: U band, 400 — 480MHz,
SA818-V: V band , 134 — 174MHz

Features:

Frequency range:

SA818-U: 400 ~ 480 MHz (UHF)

SA818-V : 134~174MHZ (VHF)

Tx and Rx frequency, Tx andRxCTCSS,CDCSS can be set alone.

Band width 12.5/25KHz

Output power up to 1 w

Transmission distance up to 3.5 to 5 kminOpen area

sensitivity: – 124 DBM

Small size

Built-in EEPROM, data kept unchanged even powered off

38 CTCSS

166 CDCSS

8 level squelch

8 adjustable volume

high/ low power is optional (500 mw)-1w

wide range of working voltage 3.3 to 5.5 V

1 ppm KDS TCXO crystal,

What does include in the package:

2pcs SA818 Walkie talkie module:

2pcs Rubber Antenna

2pcs SMA connect wire

2pcs/lot NiceRF new All-in-One walkie-talkie module U band, 400 — 480MHz SA828-U US$ 46.70/lot pieces / lot

2pcs/lot NiceRF new All-in-One walky talky module V band, 134 — 174MHz SA828-V US$ 46.70/lot pieces / lot

1W RF4463F30 High Power FSK wireless transceiver module with SI4463 chip 433/470/868/915MHz low cost rf transceiver module US$ 19.50/piece

4pcs/lot IIC Interface Embedded non wrist3D Pedometer Module STP200M US$ 24.00/lot pieces / lot

Pulse-output Interface Embedded 3D Pedometer Module STP100M (for Non Wrist Pedometer Products) US$ 8.75/piece

6pcs STX888 transmitter module +6pcs SRX882 receiver module + 12pcs matching antenna US$ 14.00/set

5sets/lot ASK module kit (5pc STX888 transmitter module +5pc SRX882 receiver module + 10pcs matching antenna US$ 11.90/set

ASK module kit (1pc STX888 transmitter module +1pc SRX882 receiver module + 2pcs matching antenna US$ 5.00/set