Just started my holidays on the beach, while here I finally have some time to make some range testing with two CC1310 LauchPads. These LaunchPads come by default with a PCB antenna. I’m going to use only the PCB antenna for my testing.
I’m using one of the TI sample applications and its default configuration:
// Frequency: 868.00000 MHz
// Data Format: Serial mode disable
// Deviation: 25.000 kHz
// Packet Length Config: Variable
// Max Packet Length: 128
// Packet Length: 30
// RX Filter BW: 98 kHz
// Symbol Rate: 50.00000 kBaud
// Sync Word Length: 32 Bits
// TX Power: 14 dBm (requires define CCFG_FORCE_VDDR_HH = 1 in ccfg.c, see CC13xx/CC26xx Technical Reference Manual)
// Whitening: No whitening
For my first test I left the receiver on the balcony of the 5th floor and I walked around the marina. At the other side, about 600 meters away I have this on the receivers log file:
address: 38; adc: 582; rssi: -88
address: 38; adc: 579; rssi: -88
address: 38; adc: 582; rssi: -92
address: 38; adc: 580; rssi: -96
address: 38; adc: 583; rssi: -95
address: 38; adc: 585; rssi: -95
address: 38; adc: 583; rssi: -93
address: 38; adc: 580; rssi: -90
address: 38; adc: 583; rssi: -97
address: 38; adc: 583; rssi: -97
This is the aerial picture of the test area:
On the other side at 600m it is hard to see the balcony:
I’ll improve the test program to make sure its not loosing packets and I’ll continue my testing soon.
Pedroid 