From 406ddc022ce6cd6fd0b6c7baeed5f8b36651c365 Mon Sep 17 00:00:00 2001
From: Josh Blum <josh@joshknows.com>
Date: Mon, 10 Oct 2011 17:48:46 -0700
Subject: uhd: specify range on tx_waveforms --ampl

---
 host/examples/tx_waveforms.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'host/examples/tx_waveforms.cpp')

diff --git a/host/examples/tx_waveforms.cpp b/host/examples/tx_waveforms.cpp
index 261b1342d..6e5c53642 100644
--- a/host/examples/tx_waveforms.cpp
+++ b/host/examples/tx_waveforms.cpp
@@ -103,7 +103,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){
         ("spb", po::value<size_t>(&spb)->default_value(10000), "samples per buffer")
         ("rate", po::value<double>(&rate), "rate of outgoing samples")
         ("freq", po::value<double>(&freq), "RF center frequency in Hz")
-        ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of the waveform")
+        ("ampl", po::value<float>(&ampl)->default_value(float(0.3)), "amplitude of the waveform [0 to 0.7]")
         ("gain", po::value<double>(&gain), "gain for the RF chain")
         ("ant", po::value<std::string>(&ant), "daughterboard antenna selection")
         ("subdev", po::value<std::string>(&subdev), "daughterboard subdevice specification")
-- 
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