Ge Mds Radio Configuration Software

[Chiquita Palafox]

TheFRC Radio Configuration Utility requires administrator privileges to configure the network settings on your machine. The program should request the necessary privileges automatically (may require a password if run from a non-administrator account), but if you are having trouble, try running it from an administrator account.

Plug directly from your computer into the wireless bridge ethernet port closest to the power jack. Make sure no other devices are connected to your computer via ethernet. If powering the radio via PoE, plug an Ethernet cable from the PC into the socket side of the PoE adapter (where the roboRIO would plug in). If you experience issues configuring through the PoE adapter, you may try connecting the PC to the alternate port on the radio.

By default, the Radio Configuration Utility will program the radio to enforce the 4Mbps bandwidth limit on traffic exiting the radio over the wireless interface. In the home configuration (AP mode) this is a total, not a per client limit. This means that streaming video to multiple clients is not recommended.

Part of the installation prompts will include installing Npcap if it is not already present. The Npcap installer contains a number of checkboxes to configure the install. You should leave the options as the defaults.

If you see an error about NPF name, try disabling all adapters other than the one being used to program the radio. If only one adapter is found, the tool should attempt to use that one. See the steps in Disabling Network Adapters for more info.

Select which operating mode you want to configure. For most cases, the default selection of 2.4GHz Access Point will be sufficient. If your computers support it, the 5GHz AP mode is recommended, as 5GHz is less congested in many environments.

Robot Name: This is a string that gets appended to the SSID used by the radio. This allows you to have multiple networks with the same team number and still be able to distinguish them.

Firewall: If this box is checked, the radio firewall will be configured to attempt to mimic the port blocking behavior of the firewall present on the FRC field. For a list of open ports, please see the FRC Game Manual.

BW Limit: If this box is checked, the radio enforces a 4 Mbps bandwidth limit like it does when programmed at events. Note that this is a total limit, not per client, so streaming video to multiple clients simultaneously may cause undesired behavior.

Follow the on-screen instructions for preparing your wireless bridge, entering the settings the bridge will be configured with, and starting the configuration process. These on-screen instructions update to match the bridge model and operating mode chosen.

Due to Unicode incompatibles, non-US Teams may face a configuration failure because of incorrect network interface reading. In that case, change the network adapter name to another name in English and retry.

If the radio has not been configured, the Detect Radio button displays. Click the Detect Radio button. If the receiver finds a radio, the Radio configuration page displays the type of radio detected and the configuration parameters for that radio.

I Have two radio , I am using my own Trimble base I want to send correction using Lora Radio

How to connect radio with my Own base which has serial port

How to configure it my setup and baud rate

If some has not Emlid Base

The two key message parameters are RADIO.rssi and RADIO.remrssi.The first is the RSSI (signal strength) level that the local radio isreceiving at. The remrssi parameter is the RSSI that the remote radio isreceiving at.

The RSSI value scales approximately as 1.9x the dBm signal strength,plus an offset. See the Si1000 data sheet for the exact mapping betweenRSSI and dBm received signal strength, or use this approximate formula

The reason the RSSI varies so much during this flight is that thesignal is attenuated when the plane is rolled over in a turn as I wasusing a simple wire antenna in the plane. The RSSI values for thisflight were plenty high enough for the link quality to be excellentthroughout the flight using the default radio parameters.

The most common source of range problems is noise. Noise is unwantedradio emissions in the same frequency range that your radio is usingthat interferes with the operation of your radio. The radios havetelemetry logging built in to help you diagnose the source of the noise.

Perhaps the most common source of noise with the 3DR-433 is noise fromthe USB bus on your ground station. That shows up as high values for theRADIO.noise value. If you get this, then you could try using a differentUSB cable, or a different laptop. You can also try using a USB hubbetween your laptop and your radio.

Another key source of range problems is the antenna placement. Yourground station antenna should be well clear of obstructions and a coupleof meters off the ground. You may need to build a stand to hold it toget the best range.

The key parameter that controls the range of your radios is theAIR_SPEED. The default is 64 (which is 64kbps) will give you a rangeof over a kilometre with small omni antennas. The lower you set theAIR_SPEED the longer your range, although lowering the AIR_SPEEDalso lowers how much data you can send over the link.

For most telemetry applications you will primarily be sending datamostly in one direction, from the aircraft to the ground station. Formost people, the amount of data sent from the ground station to theaircraft is small, just an occasional control packet plus heartbeatpackets.

If you are using a joystick to control your aircraft then you will besending a lot more data from the ground station to the aircraft, and inthat case you may find a higher AIR_SPEED is needed, although yourrange will be reduced.

The ECC parameter makes a big difference to the data rate you cansupport at a given AIR_SPEED. If you have ECC set to zero, then noerror correcting information is sent, and the radio uses a simple 16 bitCRC to detect transmission errors. In that case your radio will be ableto support data transfers in one direction of around 90% of theAIR_SPEED.

If you enable ECC, then the data rate youcan support is halved. The ECC system doubles the size of the data sentby the radios. It is worth it however, as the bit error rate will dropdramatically, and you are likely to get a much more reliable link atlonger ranges.

As mentioned above, the radios support a 12/24 Golay error correctingcode if you set the ECC parameter to 1. This means that for every 12bits of data the radio will send 24 bits, calculating the bits usingGolay code lookup tables. The process is reversed on the receiving end,and allows the radio to correct bit errors of up to 3 bits in every 12bits send (i.e. 25% bit error rate).

If you set MAVLINK to 2, then in addition to doing MAVLink framing theradio will look for RC_OVERRIDE packets (used for joysticks) andensure that those packets get sent as quickly as possible. This optionis useful if you are using a tablet based joystick for control.

The RADIO packets contain information about the RSSI (Received SignalStrength Indicator) level at both ends of the link, allowing the groundstation or aircraft to take action in case the link quality falls toolow.

The RADIO packets also contain information about error rates, and howfull the serial transmit buffer is (as a percentage). ArduPilot canuse this information to automatically adapt the telemetry stream ratesto the data rate that the radios can sustain.

You need to be very careful to configure your radios to stay within thelegal power limits of the country you are operating in. The defaultpower level of 20dBm is fine for the US and Australia, as up to 30dBm isallowed by the LIPD class licenses there in the 915-928MHz frequencyband for a frequency hopping radio. So as long as your antennas have again of less than 10dBi you should be within the ISM rules.

For example, if your local rules allow for a maximum of 30dBm (1W) EIRP,then if you use an amplifier with a 12dB transmit gain, and an antennawith 3dBi gain, then you will need to set TXPOWER to at most 14.

The reason the duty cycle is included is that some regions of the worldallow for higher transmit power or more frequencies if you have a dutycycle below a given threshold. So for example in Europe you can transmiton a wider range of frequencies in the 433 band if your duty cycle isbelow 10%.

Set MAVLINK to 2. This turns on special checking for theRC_OVERRIDE packets used in joystick control, to allow thosepackets to always be sent first. If you are using MAVLink (youprobably are) there are no downsides for choosing this setting.

Change MAX_WINDOW from the default of 131 to 33. This will ensurethat the GCS can send a packet to the vehicle at least once every 33msecs. It is worth noting that this will lower the availablebandwidth, so if you need absolute maximum bandwidth you are best offwith the default of 131. Both radios on a channel must have thesame value for this parameter, or they will not be able to talk toeach other.

To enable LBT in your radio you need to set the LBT_RSSI threshold.This is the signal strength that the radio considers to be an indicationthat the channel is busy. If you set LBT_RSSI to zero then LBT isdisabled.

The minimum non-zero setting is 25 which is a few dB above the receivesensitivity of the radio (-121 dBm). To setup LBT_RSSI you need toknow what signal level your local radio regulations require for LBTfunctionality. Each increment in LBT_RSSI above 25 is roughly equal to0.5dB above the radios receive sensitivity. So if you set LBT_RSSI to40 then the radio will consider the channel to be free if the signalstrength is less than 7.5dB above the receiver sensitivity.

The way firmware upload normally works is the planner connects to theradio and sends a AT&UPDATE command to put the radio into bootloadermode ready to receive a new firmware. That only works if the planner cansend AT commands to the radio.

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