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Dreamcatcher 3.03

(added by @ac8dg as an experiment, kind of circular references)
Please Edit and add a note to the revision history at the bottom

Currently in production
To purchase see

How to use as an Outernet (Now Othernet) - Skylark Receiver:

Software to use for other applications

Power Supply Options:

  • Power Cubes
  • Uninterruptible Power Supplies (UPS) batteries
  • Solar Power and Backup Sources

Case Options and Antenna Mounting Options

  • Using a Conical shell to improve reception
  • Using Commercial dishes

Unique information specific to which satellite is selected

  • America’s
  • Europe
  • Pacific
  • South Asia
  • Africa

Hardware Information

  • Connecting USB devices
  • Speaker jack and Speaker pin connector
  • Touch screen display
  • The two sd card slots
  • Mounting holes
  • Various “points” on the main board
  • Reset button
  • Ventilation and cooling requirements
  • Replacing Parts
  • Schematic design layout

Software Configuration Information

  1. Activating the audio amplifier
    a. un-mute all channels in alsamixer
    b. Enable Speaker PA via gpio114:
    c. Code Block
    sudo su
    cd /sys/class/gpio
    echo 114 > export
    cd gpio114
    echo out > direction
    echo 1 > value

  2. Adjusting Display options

  3. Selecting Coax inputs Note: The only valid configurations are when rfswitch1 is off and rfswitch2 is on, or the other way round.
    a. Selecting Direct SMA Code block
    sudo su
    cd /sys/class/leds/rfswitch1/
    echo 1 > brightness
    cd /sys/class/leds/rfswitch2/
    echo 0 > brightness

  4. Turn on Bias-Tee to the Coax Connector
    a. Code block for 14 volt dc at both sma input connectors
    sudo su
    cd /sys/class/gpio
    echo 119 > export
    cd gpio119
    echo out > direction
    echo 1 > value

  5. Adjusting SDR parameter
    ** RF Amplifier Gain
    ** Lora and other SX1281 parameters
    The default for the chat application found in main.cpp:
    modulationParams.PacketType = PACKET_TYPE_LORA;
    modulationParams.Params.LoRa.SpreadingFactor = LORA_SF7;
    modulationParams.Params.LoRa.Bandwidth = LORA_BW_0400;
    modulationParams.Params.LoRa.CodingRate = LORA_CR_4_5;
    PacketParams.PacketType = PACKET_TYPE_LORA;
    PacketParams.Params.LoRa.PreambleLength = 0x08;
    PacketParams.Params.LoRa.HeaderType = LORA_PACKET_VARIABLE_LENGTH;
    PacketParams.Params.LoRa.PayloadLength = 50;
    PacketParams.Params.LoRa.Crc = LORA_CRC_ON;
    PacketParams.Params.LoRa.InvertIQ = LORA_IQ_INVERTED;

Notes/Revisions history

  1. Created 7/2/2018 @ac8dg
  2. Revised 7/6/2018 @ac8dg changed outernet to othernet

Dreamcatcher 3.02

Dreamcatcher 2

  • Alternative Uses for Dreamcatcher 2





The post above is a wiki. I believe anyone can edit it. Please do.

Outernet in L-Band no longer available?

Least we loose this post, will it become something we can find easily on the Forum Home Page or within the Outernet Home page? Ken


Yeah, once we have more content in this and the other wikis, I’ll add a link up top.


Bumping this to get more information into the wiki.


Maybe someone can come up / develop a standard formatting scheme. Involving a paragraph numbering, headings, bullets… My first try needs some help.