From: drowe67 <drowe67@01035d8c-6547-0410-b346-abe4f91aad63>
Date: Mon, 9 Apr 2018 04:21:16 +0000 (+0000)
Subject: added RF bandwidth
X-Git-Url: http://git.whiteaudio.com/gitweb/?a=commitdiff_plain;h=18cdd296772182452f68bb4a9fb203aece5f4bf6;p=freetel-svn-tracking.git

added RF bandwidth

git-svn-id: https://svn.code.sf.net/p/freetel/code@3458 01035d8c-6547-0410-b346-abe4f91aad63
---

diff --git a/codec2-dev/README_ofdm.txt b/codec2-dev/README_ofdm.txt
index 1ae335a6..33176225 100644
--- a/codec2-dev/README_ofdm.txt
+++ b/codec2-dev/README_ofdm.txt
@@ -94,6 +94,7 @@ Payload bits/s: 700
 Text bits/s...: 25
 Unique Word...: 10 bits
 Carriers......: 17
+RF bandwidth..: 944 Hz
 Symbol period.: 18ms
 Cyclic Prefix.: 2ms (note 1)
 Pilot rate....: 1 in every 8 symbols
@@ -112,5 +113,6 @@ Notes:
   2/ Ideal SNR(3000) = Eb/No + 10*log10(Rb/B)
                      = -1 + 10*log10(1400/3000)
                      = -4.3 dB,
-     So we have about 2dB overhead for synchronisation and implementation loss.
+     So we have about 1.8dB overhead for synchronisation, implementation loss,
+     and the text channel.
   3/ HF Multipath channel used for testing is two path, 1Hz Doppler, 1ms delay