How to Build lora network : <p>I want to make Lora network in india that helps to receive node(sensor) data within 2km to 3km range in urban area.</p>

<p>I had read some tutorial but I have some doubts...</p>

<p>1)can we use single channel gateway without license? (because in india 868mhz is not free)</p>

<p>2)is it required to use TTN server or can we even use our own server to send data from gateway.</p>

<p>3)is lora protocol free to implement?</p>
