From cbf217d28cb87df8c342506429bfc36b6f9edbc4 Mon Sep 17 00:00:00 2001 From: Dominic Reich Date: Sun, 31 Mar 2024 07:51:48 +0200 Subject: [PATCH] publish packet radio post may need some updates though... --- .../add-channel.png | 3 ++ .../add-feat.png | 3 ++ .../aprs.png | 3 ++ .../index.md | 37 ++++++++++++++++--- .../main.png | 3 ++ .../map.png | 3 ++ .../packet-session.png | 3 ++ .../pocsag-decode.png | 3 ++ 8 files changed, 52 insertions(+), 6 deletions(-) create mode 100644 content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/add-channel.png create mode 100644 content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/add-feat.png create mode 100644 content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/aprs.png create mode 100644 content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/main.png create mode 100644 content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/map.png create mode 100644 content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/packet-session.png create mode 100644 content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/pocsag-decode.png diff --git a/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/add-channel.png b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/add-channel.png new file mode 100644 index 0000000..dcf27c8 --- /dev/null +++ b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/add-channel.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:89a6769c23e9f39d716ab43a6b1b47ff5ae08b8b05120a38188250085ca9e393 +size 691 diff --git a/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/add-feat.png b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/add-feat.png new file mode 100644 index 0000000..ed9ed98 --- /dev/null +++ b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/add-feat.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:f75803e598458de7a82a7a43b722b963577b3b5049bcca4900a8cbe2e2f13961 +size 15369 diff --git a/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/aprs.png b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/aprs.png new file mode 100644 index 0000000..43dd687 --- /dev/null +++ b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/aprs.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:49be45533c1e4d7c7d898c7edd6ccef2ab96431ecba7885b70d816ed2bf769d3 +size 32004 diff --git a/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/index.md b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/index.md index 657ce64..cb7f45f 100644 --- a/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/index.md +++ b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/index.md @@ -18,7 +18,6 @@ tags: - signalink - sdr -draft: true --- Out of curiosity I began another "research-session" because it is really time to get @@ -395,6 +394,21 @@ $ rtl_fm -f 144.8M -g 42 -s 22050 -l 20 - | multimon-ng -t raw -a AFSK1200 - #### With sdrangel +Add a channel and select Packet Demoulator. + +Once packet gets demodulated, add a feature and select APRS: + +![Upper left portion of the whole SDRAngen window highlighting the 'Add feature' button](add-feat.png) + +![Example view of the APRS feature window](aprs.png) + +The APRS feature windows let you connect to APRS-IS (top right of the APRS window). + +You can also add another feature called Map to display the received +APRS packets on a map. + +![Cropped view of the map feature window](map.png) + ### Packet radio #### With direwolf @@ -407,18 +421,19 @@ $ rtl_fm -f 144.950M -M fm -s 200000 -r 32000 -g 35 | direwolf -n 1 -r 32000 -b $ rtl_fm -M fm -f 144.950M -s 22050 | direwolf -n 1 -r 22050 -b 16 - ~~~ -#### With multimon-ng - #### With sdrangel +Add a channel and select Packet Demoulator. + +![An example of a decoded packet session](packet-session.png "A quick connection try at home +(the gateway is out of reach so we don't get an answer back)") + ### VARA HF -We can only decode with VARA HF in monitor mode. +We can only decode with VARA HF in monitor mode. It is possible that we can't decode anything. ### POCSAG -#### With direwolf - #### With multimon-ng ~~~console @@ -427,3 +442,13 @@ $ rtl_fm -M fm -f 438.025M -s 22050 | multimon-ng -t raw -a POCSAG512 -a POCSAG1 #### With sdrangel +![Settings of the main settings window](main.png) + +Set the frequency to 438.025 MHz (in Austria) and add a channel +(pink mark box). Select Pager Demodulator and start decoding +(click the Play button). + +That will decode the set POCSAG modulation (defaults to 1200 baud). + +![Example of the decode in SDRAngel](pocsag-decode.png) + diff --git a/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/main.png b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/main.png new file mode 100644 index 0000000..497e125 --- /dev/null +++ b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/main.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:9ff54eb8864322735c2ea8a4a919e69bb7daabcb612943e6de79016d1e7b0a80 +size 36824 diff --git a/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/map.png b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/map.png new file mode 100644 index 0000000..90af671 --- /dev/null +++ b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/map.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:8eddcadafdbc782bff5a055285228ff8416e88cfbf06dadc14423bf1348b6394 +size 57688 diff --git a/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/packet-session.png b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/packet-session.png new file mode 100644 index 0000000..6882c83 --- /dev/null +++ b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/packet-session.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:8820ccbb9bd2b11af945cd63fba673f7a1667184c1d7393aab0e8e2c44dfd49f +size 57794 diff --git a/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/pocsag-decode.png b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/pocsag-decode.png new file mode 100644 index 0000000..58c62ec --- /dev/null +++ b/content/posts/2024/64-packet-radio-vara-mobilinkd-and-digirig-on-linux/pocsag-decode.png @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:fef89ce94141d77e826b426787b11fde7aaa06762c6824300d13f0f033d84854 +size 100707