Isn't the SparkFun LoRaSerial Kit 1W suppose to be a functionally eqz 1W version the the hollbro 0.1

The hollybro 0.1 watt reliably transmit rtk data, the 1 watt system transmits crap data. I have .ubx file to prove it where I the hollybro, then simply swap radios, and the data foes to shit.

Somewhat, there are more config modes and whatnot with the LoRaSerial kit https://docs.sparkfun.com/SparkFun_LoRa … ick_start/

You might need to alter the serial settings https://docs.sparkfun.com/SparkFun_LoRa … _commands/

Which operating mode is it in? https://docs.sparkfun.com/SparkFun_LoRa … ing_modes/

Point to Point

I was hoping to be able to see the parameter setup vai teratem on the holybro so could compare it to 1 w lora, but no joy. Frankly I have no idea what setting to change with this unit, but here are the settings .

ATI0

AT-AirSpeed=0

AT-AutoTune=0

AT-Bandwidth=500.00

AT-ClientFindPartnerRetryInterval=3

AT-CmdVC=0

AT-CodingRate=8

AT-CopyDebug=0

AT-CopySerial=0

AT-CopyTriggers=0

AT-DataScrambling=0

AT-Debug=0

AT-DebugDatagrams=0

AT-DebugHeartbeat=0

AT-DebugNvm=0

AT-DebugRadio=0

AT-DebugReceive=0

AT-DebugSerial=0

AT-DebugStates=0

AT-DebugSync=0

AT-DebugTraining=0

AT-DebugTransmit=0

AT-DisplayRealMillis=0

AT-Echo=0

AT-EnableCRC16=1

AT-EncryptData=1

AT-EncryptionKey=1C452DE2E18C7D450A1BE6ACBD226B26

AT-FlowControl=0

AT-FramesToYield=3

AT-FrequencyHop=1

AT-FrequencyMax=928.000

AT-FrequencyMin=902.000

AT-HeartBeatTimeout=5000

AT-InvertCts=0

AT-InvertRts=0

AT-MaxDwellTime=400

AT-MaxResends=0

AT-NetID=54

AT-NumberOfChannels=50

AT-OperatingMode=1

AT-OverHeadtime=10

AT-PreambleLength=8

AT-PrintAckNumbers=0

AT-PrintChannel=0

AT-PrintFrequency=0

AT-PrintLinkUpDown=0

AT-PrintPacketQuality=0

AT-PrintPktData=0

AT-PrintRfData=0

AT-PrintTimestamp=0

AT-PrintTxErrors=0

AT-RTSOffBytes=32

AT-RTSOnBytes=256

AT-SelectLedUse=4

AT-SerialDelay=50

AT-SerialSpeed=57600

AT-Server=0

AT-SpreadFactor=9

AT-SyncWord=18

AT-TrainingKey=537061726B46756E547261696E696E67

AT-TrainingTimeout=1

AT-TriggerEnable_31-0=0

AT-TriggerEnable_63-32=0

AT-TriggerWidth=25

AT-TriggerWidthIsMultiplier=1

AT-TxPower=30

AT-TxToRxUsec=657

AT-UsbSerialWait=0

AT-VerifyRxNetID=1

OK

Did you ever get the SparkFun LoRaSerial radios working with RTK? I’ve tried and tried, and it’s not reliable.

I posted about this in the GPS forum: viewtopic.php?f=116&t=60898

Not yet, I have an idea or two, but its just uneducated speculation. The 0.1 watt Hollybro’s work like I would expect since I also own a pair of those. I’m wondering if there is some sort of power amp for those to kick it up to 1 watt. Your description of performance sounds like the problems I’ve experienced, I did notice that supplying power via the usb port does help some of the symptoms, but does not fix the data probelms,

In a single second, this is the data that is sent to the radio. The data was obtained by bluetooth connection to the base station into my laptop and recorded using u-center packet viewer.

18:00:55 R → 74 NMEA-GNRMC

18:00:55 R → 89 NMEA-GNGGA

18:00:55 R → 63 NMEA-GNGSA

18:00:55 R → 65 NMEA-GNGSA

18:00:55 R → 55 NMEA-GNGSA

18:00:55 R → 63 NMEA-GNGSA

18:00:55 R → 47 NMEA-GNGSA

18:00:55 R → 72 NMEA-GPGSV

18:00:55 R → 72 NMEA-GPGSV

18:00:55 R → 46 NMEA-GPGSV

18:00:55 R → 72 NMEA-GPGSV

18:00:55 R → 59 NMEA-GPGSV

18:00:55 R → 53 NMEA-GPGSV

18:00:55 R → 72 NMEA-GLGSV

18:00:55 R → 72 NMEA-GLGSV

18:00:55 R → 33 NMEA-GLGSV

18:00:55 R → 72 NMEA-GLGSV

18:00:55 R → 72 NMEA-GLGSV

18:00:55 R → 31 NMEA-GLGSV

18:00:55 R → 72 NMEA-GAGSV

18:00:55 R → 46 NMEA-GAGSV

18:00:55 R → 72 NMEA-GAGSV

18:00:55 R → 54 NMEA-GAGSV

18:00:55 R → 31 NMEA-GAGSV

18:00:55 R → 72 NMEA-GBGSV

18:00:55 R → 72 NMEA-GBGSV

18:00:55 R → 46 NMEA-GBGSV

18:00:55 R → 64 NMEA-GBGSV

18:00:55 R → 42 NMEA-GBGSV

18:00:55 R → 20 NMEA-GQGSV

18:00:55 R → 62 NMEA-GNGST

18:00:55 R → 25 RTCM3-1005

18:00:55 R → 144 RTCM3-1074

18:00:55 R → 158 RTCM3-1084

18:00:55 R → 86 RTCM3-1094

18:00:55 R → 144 RTCM3-1124

Ok, I’ve tried upping the data rate to 115200, turning off the encryption, point to point, to multpoint with server bit set on the rtk base unit, of course playing with the factors I mentioned before nothing makes it work. I set it up with the holybro radios @ 57600, get reliable data. not so with the LoRa serial. So I was told by support to try changing some of the configurations, I did those that made any sense to me, they don’t work.

i submitted an issue about this to the github firmware repo.

https://github.com/sparkfun/SparkFun_Lo … issues/587