# TTN Siechnice transmission record above 34km at SF7

> On 9th of April 2018 we hit above 34[km] of line-of-sight transmission We hit the record by transmitting an unconfirmed packet using our LoRaWAN tester/tracker

- Type: Community update
- Community: [The Things Network Siechnice](https://www.thethingsnetwork.org/community/siechnice/)
- Author: Grzegorz Kaczmarek
- Published: 2018-04-10
- Web page: https://www.thethingsnetwork.org/community/siechnice/post/ttn-siechnice-transmission-record-above-34km-at-sf7

### On 9th of April 2018 we hit above 34[km] of line-of-sight transmission

#### We hit the record by transmitting an unconfirmed packet using our LoRaWAN tester/tracker (which is still under development) held in hand but standing at the bottom of the Sleza hill with antenna pointing straight up.

![file](https://www.thethingsnetwork.org/media/md_editor/image-1523385160355.large.png)

##### Our transmission took place from the lower mountain shelter's area (called Schronisko Wiezyca) from where there is a beautiful view in the Wroclaw's direction.

Node side:

```
* location: Schronico Wiezyca at the bottom of Sleza hill
* antenna: 3[dBi] standing on the wooden support 1[m] above ground
* chip: IMST iM881A
* spreading factor = SF7
* TX power = +14[dBm]
* error coding = 4/5
* bandwidth = 125[kHz]
* connection type: unconfirmed
```

Gateway side:

```
* location: Wrolcaw, Wittiga
* EUI: 1234567891ABCDEF
* RSSI = -123
* SNR = -7.50
```