This repository contains tools and instructions for running a Blockstream Satellite receiver.
The Blockstream Satellite network broadcasts the Bitcoin blockchain using the second-generation Digital Video Broadcasting Satellite (DVB-S2) standard. To receive this signal, you will need a DVB-S2 demodulator, for which there are a couple of options. The output of the demodulator will be a data stream that you will feed to a host running the Bitcoin Satellite application. This application, in turn, will decode the blocks received over satellite and keep the blockchain in sync.
Find out if your location has coverage by looking at our Coverage Map.
To assemble a receiver setup, you will need to go through the following steps:
- Get the required hardware, such as the DVB-S2 demodulator, the satellite dish/antenna and the low-noise block downconverter (LNB).
- Install all software requirements and configure the receiver setup.
- Align your satellite dish appropriately to receive the Blockstream Satellite signal.
You can find detailed guidance for these steps along this documentation.
There are three supported setup options with varying levels of budget, performance, and CPU usage, as well as different form factors. They are summarized in the table below:
| Setup | Budget | Performance/Reliability | CPU Usage | Form Factor | Dual Satellite* |
|---|---|---|---|---|---|
| Software-defined Radio (SDR) | Most Affordable | Limited | High | USB Dongle | No |
| Linux USB Receiver | Moderate | Excellent | Low | USB Device | No |
| Standalone Demodulator | Higher | Excellent | None | Standalone | Yes |
* Specific to locations that have overlapping coverage from two satellites.
In all options, the following hardware components are required:
| Component | Region-Specific | General Requirements |
|---|---|---|
| Satellite dish (antenna) | Yes | Diameter of 45cm or larger |
| LNB | Yes | Must be a PLL LNB with linear polarization and stability of +- 250 kHz or less |
| LNB mounting bracket | No | |
| Coaxial Cable | No | RG6 Cable |
Note that both the satellite dish and the LNB are region-specific, that is, they must attend to the specifications of the satellite that covers your region. This is because they must be appropriate for the frequency band of your satellite.
Additionally, each of the above three setups has specific complementary components, which are summarized below:
| Setup | Specific Components |
|---|---|
| Software-defined Radio (SDR) | RTL-SDR dongle, LNB Power Supply, SMA Cable and SMA to F adapter |
| Linux USB Receiver | TBS5927 Professional DVB-S2 TV Tuner USB |
| Standalone Demodulator | Novra S400 PRO DVB satellite Receiver and Ethernet Cable |
Please refer to the comprehensive hardware guide in order to pick the appropriate components.
Setup configurations are dependent on your demodulator choice and on the satellite that covers your region. To obtain the configuration instructions that are suitable to your setup, please use the Blockstream Satellite command-line interface (CLI).
First install the CLI as follows:
sudo pip3 install blocksat-cli
NOTE:
- The CLI requires Python 3.
- Some blocksat-cli commands require root access, so it is preferable to run the installation using
sudo.
Next, run the configuration helper:
blocksat-cli cfg
Then, run the instructions helper:
blocksat-cli instructions
After following the instructions, the next steps include the installation of Bitcoin Satellite and the antenna pointing. Please follow the user guide.
- Frequency Bands
- Hardware Guide
- Receiver Configuration:
- Antenna Pointing
- Bitcoin Satellite
- Satellite API
For additional help, you can join the #blockstream-satellite IRC channel on freenode.