# Range testing Hervey Bays first single channel gateway

> A couple of nights ago I started range testing the TTN Gateway I had build using a Raspberry Pi and a dragino sheild. For my test rig I used an Arduino Mega 256

- Type: Community update
- Community: [The Things Network Hervey Bay](https://www.thethingsnetwork.org/community/hervey-bay/)
- Author: jlynch
- Published: 2017-08-04
- Web page: https://www.thethingsnetwork.org/community/hervey-bay/post/range-testing-hervey-bays-first-single-channel-gateway

A couple of nights ago I started range testing the TTN Gateway I had build using a Raspberry Pi and a dragino sheild.
For my test rig I used an Arduino Mega 2560 with matching dragino sheild, a GPS with custom RS232 to TTL level
translator (2 resistors and a NPN transistor). The results can be viewed here (untill I manage to break the link :-)) :
https://iot.lynch.org.nz/g.cgi?hid=11&cmd=mapPage&start=2017-08-02%2010:00:00
The single channel gateway has a Bandwidth of 125KHz and Spreding factor 7 and frequency 916.8MHz,
Downlink is BW = 500KHz SF7 freq 923.3 MHz.

I plan to test the downlink soon, by registering a device using OTAA instead of ABP.