From 1b5f735278e07062da5efce56ab971178bf01d24 Mon Sep 17 00:00:00 2001 From: Johan de Graaf Date: Thu, 27 Jul 2017 04:19:52 +0200 Subject: [PATCH] Update README.md --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index c3935f8..08d44f3 100644 --- a/README.md +++ b/README.md @@ -1,5 +1,5 @@ # gr-fsk4 -Custom GNU Radio \(Companion\) blocks for decoding 4L-FSK, APCO-25 and RDLAP. +Custom GNU Radio \(Companion\) blocks for demodulating 4L-FSK (4 Level Frequency-Shift Keying) signals, and APCO-25 and RDLAP protocol processing. This module is the updated version of [gr-fsk4](http://www.qsl.net/kb9mwr/projects/dv/apco25/GnuradioFourLevelFSK.pdf) \([code](http://www.qsl.net/kb9mwr/projects/dv/apco25/gr-fsk4-22Apr08.tar.gz)\) for GNU Radio 3.7+. The code in this repository borrows heavily from various GNU Radio examples and components which fall under the GNU General Public License. All additional modifications and code also fall under GNU General Public License.