From ca1e75398226746db27a90302bd8e8d68a67e7d4 Mon Sep 17 00:00:00 2001 From: Mario Haustein Date: Thu, 21 May 2020 22:53:29 +0200 Subject: [PATCH] Update README.md for using Gqrx RAW-I/Q files. --- README.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/README.md b/README.md index 3efc71b..d4a0425 100644 --- a/README.md +++ b/README.md @@ -73,4 +73,10 @@ With a Adalm Pluto: Here we use the **Adalm Pluto** transceiver with `iio_readdev`. The transceiver is connected via USB. Replace `x.y.z` by the USB bus ID of your transceiver. You can retreive the USB IDs from the output of `iio_info -s`. Connection via Ethernet is possible as well. Before receiving we have to set center frequency, samplerate, gain, ... by a bunch of `iio_attr` commands. +With I/Q recordings obtained from Gqrx: + + ./rffft -i gqrx_YYYYMMDD_HHMMSS_97400000_2000000_fc.raw -f 97400000 -s 2000000 -F float -T "YYYY-MM-DDTHH:MM:SS" + +**Gqrx** records complex samples into `raw` files. The filename contains date, time, center frequency and samplerate separated by underscores. Replace `YYYYMMDD` and `HHMMSS` by your actual time and respectively. Pay attention to insert an uppercase `T` between date and time in the time stamp parameter of the `rffft` command. + The output spectrograms can be viewed and analysed using `rfplot`.