Hi all,

high interest for small Walkie Talkie modules caused that all stock of these modules was sold.

Now I can announce that new Walkie Talkie modules have arrived.

It has taken quite a while - modules travelled from November up 'till beginning of February!

Read more if interested...

Here are few tech. data of these new Walkie Talkie modules SR T300.

Technical data:

Half_duplex FM transceiver
Power Supply 3.3 7. 0 V;

2 Channel selectable
CH1: 462.125MHz
CH2: 462.175MHz

other frequency can be customer ordered:
26.175M ~ 27.5MHz;
40.66M ~ 40.7MHz
49.820M ~ 49.9MHz
400M ~ 470MHz

size: 26 X 26 mm;
communication distance 300m @ UHF;

Please note that factory set frequencies are outside of Ham radio Band plan for the EU! We will provide SR T300 modules preprogrammed for other frequencies in due course.

3.1 Pin assignment

Schematic diagram of module usage: 

Modules are delivered with 433 MHz antenna, as seen on the image below.

Surely we had to test them and they have worked very well in the simplest configuration in the image above!

Modules are already availabe in our shop.

In due course we will enable also modules programmed for other frequencies. As such because of Corona virus in China not all companies have restored their business yet which is slowing down all the communication between the EU and China. 

Best 73s de S52CQ, Jure