Issue with getting fix

New Reach user with RS+ receivers. Have yet to get a fix to date after two weeks of trying. I’m not new to GPS as I use traditional GPS survey gear from topcon and Trimble. How can I possibly not have a fixed solution with this array?

1 Like

On v2.15.1 with GPS, GLONASS and GALILEO enabled.

Whats settings was used on base and rover? I system report from both would be nice

Simple or full report?

Base:

Simple system report
app version: 2.15.1-dev-r0
'wifi_status, interface: wlan0':
- wifi_mode: ap
- access_point:
    band: bg
    channel: 1
    password: null
  ip: 192.168.42.1
  is_added: true
  is_connected: true
  mac_address: CC:B8:A8:F5:2D:E0
  security: wpa-psk
  ssid: DRONE_BASE_ML:D0:92
  uuid: d4c6681c-1ad7-42eb-9b67-e9881c5887e5
base mode:
  base coordinates:
    accumulation: '3'
    antenna offset:
      east: '0'
      north: '0'
      up: '2.082'
    coordinates:
    - '30.633785997'
    - '-97.849386377'
    - '253.81'
    format: llh
    mode: single-and-hold
  output:
    enabled: true
    format: rtcm3
    path: lora
    type: lora
  rtcm3 messages:
    '1002':
      enabled: true
      frequency: '1'
    '1006':
      enabled: true
      frequency: '0.1'
    '1008':
      enabled: false
      frequency: '1'
    '1010':
      enabled: true
      frequency: '0.5'
    '1019':
      enabled: false
      frequency: '1'
    '1020':
      enabled: false
      frequency: '1'
    '1097':
      enabled: true
      frequency: '0.5'
    '1107':
      enabled: false
      frequency: '1'
    '1117':
      enabled: false
      frequency: '1'
    '1127':
      enabled: false
      frequency: '1'
    gps:
      enabled: false
      frequency: '1'
    qzss:
      enabled: false
      frequency: '1'
bluetooth:
  discoverable: false
  enabled: false
  pin: '***'
correction input:
  input2:
    enabled: false
    format: rtcm3
    path: ttyMFD2:38400:8:n:1:off
    send position to base: 'off'
    type: serial
  input3:
    enabled: false
    format: rtcm3
    path: :9028
    type: tcpsvr
logging:
  base:
    format: RTCM3
    started: true
    version: null
  correction:
    format: RTCM3
    started: true
    version: null
  interval: 24
  overwrite: true
  raw:
    format: RINEX
    started: false
    version: '3.03'
  solution:
    format: LLH
    started: true
    version: null
lora:
  air rate: '9.11'
  frequency: 869500
  output power: '20'
position output:
  output1:
    enabled: false
    format: nmea
    path: bluetooth
    type: bluetooth
  output2:
    enabled: false
    format: llh
    path: :9001
    type: tcpsvr
  output3:
    enabled: true
    format: llh
    path: :2014
    type: tcpsvr
  output4:
    enabled: true
    format: llh
    path: :2015
    type: tcpsvr
rtk settings:
  elevation mask angle: '10'
  glonass ar mode: 'on'
  gps ar mode: fix-and-hold
  max horizontal acceleration: '4'
  max vertical acceleration: '4'
  positioning mode: kinematic
  positioning systems:
    compass: false
    galileo: true
    glonass: true
    gps: true
    qzs: true
    qzss: false
    sbas: true
  snr mask: '30'
  update rate: '1'
1 Like

Rover:

Simple system report
app version: 2.15.1-dev-r0
'wifi_status, interface: wlan0':
- wifi_mode: ap
- access_point:
    band: bg
    channel: 1
    password: null
  ip: 192.168.42.1
  is_added: true
  is_connected: true
  mac_address: 44:2C:05:FE:76:E7
  security: wpa-psk
  ssid: DRONE_ROVER_ML:C6:8E
  uuid: ecb440c4-6d2e-4b34-b0e7-73f64d12c38a
base mode:
  base coordinates:
    accumulation: '2'
    antenna offset:
      east: '0'
      north: '0'
      up: '0'
    coordinates:
    - '0'
    - '0'
    - '0'
    format: llh
    mode: single-and-hold
  output:
    enabled: false
    format: rtcm3
    path: tcpsvr://:9000#rtcm3
    type: tcpsvr
  rtcm3 messages:
    '1002':
      enabled: true
      frequency: '1'
    '1006':
      enabled: true
      frequency: '0.1'
    '1008':
      enabled: false
      frequency: '1'
    '1010':
      enabled: true
      frequency: '0.5'
    '1019':
      enabled: false
      frequency: '1'
    '1020':
      enabled: false
      frequency: '1'
    '1097':
      enabled: true
      frequency: '0.5'
    '1107':
      enabled: true
      frequency: '1'
    '1117':
      enabled: false
      frequency: '1'
    '1127':
      enabled: false
      frequency: '1'
    gps:
      enabled: false
      frequency: '1'
    qzss:
      enabled: false
      frequency: '1'
bluetooth:
  discoverable: true
  enabled: true
  pin: '***'
correction input:
  input2:
    enabled: true
    format: rtcm3
    path: lora
    send position to base: 'off'
    type: lora
  input3:
    enabled: false
    format: rtcm3
    path: :9028
    type: tcpsvr
logging:
  base:
    format: RTCM3
    started: false
    version: null
  correction:
    format: RTCM3
    started: true
    version: null
  interval: 24
  overwrite: true
  raw:
    format: RINEX
    started: false
    version: '3.03'
  solution:
    format: LLH
    started: false
    version: null
lora:
  air rate: '9.11'
  frequency: 869500
  output power: '20'
position output:
  output1:
    enabled: false
    format: nmea
    path: bluetooth
    type: bluetooth
  output2:
    enabled: false
    format: llh
    path: :9001
    type: tcpsvr
  output3:
    enabled: true
    format: llh
    path: :2014
    type: tcpsvr
  output4:
    enabled: true
    format: llh
    path: :2015
    type: tcpsvr
rtk settings:
  elevation mask angle: '10'
  glonass ar mode: 'on'
  gps ar mode: fix-and-hold
  max horizontal acceleration: '4'
  max vertical acceleration: '4'
  positioning mode: kinematic
  positioning systems:
    compass: false
    galileo: true
    glonass: true
    gps: true
    qzs: true
    qzss: false
    sbas: true
  snr mask: '30'
  update rate: '5'

@Brent_W chimed in on another thread and after a couple of reboot of the rover, toggling which GPS systems were used and 20 minutes I now have a fix.

2 Likes

Thank you @tatiana.andreeva!

That is what I am use to and the step it would not let me do. I have tried to make sure all of my settings are correct in ReachView, but I am getting very inconsistent modes and normally not fixed very often. There are a couple of other threads on here that are working through that. I think I also need to check my RMS tolerances as they may be too low from using the Topcon receivers and not allowing the Reach rover to shoot.

(edit) Oh, and I am using the Reach RS+ on 2.15.1 if that makes any difference…

My future observations may be deemed more appropriate in another thread by some, but I am going to continue on in this thread because if I was trying to do what the topic is I would want all of this information. As of right now I have a ton of satellites and cannot get a fix. I’ve been sitting here for 15 minutes.

Next problem is that while I have the receiver successfully connected to the Topcon FC-500 in Bluetooth I cannot get it to finalize the connection in Magnet. I had it connected before so I am working through it. when I initiate the connection with the connect button it asked me if I want to connect to Rover. I said yes and it continued on. Eventually it gave me a screen to choose which of the receivers I wanted to connect to. Then it continues to spin with the orange Sync icon.

Screenshots of my Emlid FC - 500 configuration.

The float vs fix problem is obviously (as you know) unrelated to Topcon Magnet but it sure is a pain when it happens. I don’t want to steer the thread in the wrong direction here so I’d suggest you try following the forum discussions on topics like “trouble getting a fix.” I’d start off by turning off all satellite systems except gps. Thanks for posting all the Topcon pictures. Let’s get this figured out!
Some pictures as proof that it can work! Some are irrelevant to the problem but they’re all topcon.
I also need help with the localization process.

Magnet Field Layout

Magnet Field










3 Likes

Thanks Brent! I had already turned off everything except GPS and it still floated for the 15 minutes I let it stay. I restarted the rover and turned GLONASS and Galileo back on and after another 20 minutes I have a fix! It’s jumping around a lot, but seems to be maintaining. I guess it’s like the typical electronics troubleshooting. When in doubt reboot and toggle.

2 Likes

Now I’m trying to get past the orange sync’ing icon. When I try to get out of it or change receivers and then get the little gray spinning dots and have to completely re-set the data collector.

Is it possibly waiting for some kind of approval back in the system connections in FC-500 settings? I found the FC-500 rather finicky for the bluetooth connection but once I had it, I didn’t have trouble with it dropping out. I haven’t tried it again for a long time because I actually forgot how to set up the com ports and everything for bluetooth. I should try again, though.