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hamnet70/impl
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Thomas Kolb 052f5d4612
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sdr_sxceiver: add DC offset correction support 
The samples are now split into blocks. The offset is corrected on
each block before it is given to SoapySX for transmission or
corrected after reception of a block from SoapySX. This ensures
there are no huge spikes in CPU usage and therefore delays when a
lot of samples should be transferred at once.
2025-10-26 19:08:34 +00:00
..
src sdr_sxceiver: add DC offset correction support 2025-10-26 19:08:34 +00:00
test test_sx: test stream activation just before TX 2024-10-13 18:40:52 +01:00
utils sxc_cal: run DC calibration for all gains 2025-10-26 19:15:19 +01:00
.gitignore Initial commit: infrastructure 2021-10-17 19:25:42 +02:00
CMakeLists.txt sxceiver: make it run without crashing 2024-10-01 21:10:14 +01:00
make.sh make.sh: allow passing parameters to make 2024-01-03 17:29:05 +01:00
README.md Remove config.h from Git; must be adapted by the user 2024-08-25 20:26:41 +02:00
setup_tundev.sh setup_tundev: limit TX queue len to 16 2024-07-19 21:59:38 +02:00

README.md

Hamnet70 Implementation

This directory contains an implementation of the Hamnet70 protocol.

Before you can compile and use this code, some additional steps are necessary:

  1. Copy src/config.h.template to src/config.h and set the following variables:
    • MY_CALL: the station call sign (i.e. your amateur radio call sign). This will be encoded into the address fields of outgoing packets.
  2. Install dependencies:
    • libliquid compiled with libfec support
    • libfec
    • fftw3
    • libhackrf

After everything is prepared, compile the code using ./make.sh. Parameters to this script are forwarded to make so you can speed things up a little with ./make.sh -j4 (on a CPU with 4 threads).

When compiled, you have two options for running Hamnet70:

  1. In digipeater (base station) mode: build/hamnet70 -c. This will broadcast beacons and wait for clients to connect.
  2. In client mode: build/hamnet70. This will wait for a beacon to arrive and connect to it.