From 39230788d7f4b0a8d6d3ab32039073ed53e74af6 Mon Sep 17 00:00:00 2001 From: Dimitri Stolnikov Date: Tue, 21 Oct 2014 22:10:40 +0200 Subject: [PATCH] hackrf: disable AMP gain stage by default to protect it from damage patch proivided by Paul Connolly --- lib/hackrf/hackrf_sink_c.cc | 2 +- lib/hackrf/hackrf_source_c.cc | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/hackrf/hackrf_sink_c.cc b/lib/hackrf/hackrf_sink_c.cc index 120b271..3a1e7da 100644 --- a/lib/hackrf/hackrf_sink_c.cc +++ b/lib/hackrf/hackrf_sink_c.cc @@ -213,7 +213,7 @@ hackrf_sink_c::hackrf_sink_c (const std::string &args) set_sample_rate( get_sample_rates().start() ); set_bandwidth( 0 ); - set_gain( 14 ); /* enable AMP gain stage by default */ + set_gain( 0 ); /* disable AMP gain stage by default to protect full sprectrum pre-amp from physical damage */ set_if_gain( 16 ); /* preset to a reasonable default (non-GRC use case) */ diff --git a/lib/hackrf/hackrf_source_c.cc b/lib/hackrf/hackrf_source_c.cc index f647b80..e3b3ea4 100644 --- a/lib/hackrf/hackrf_source_c.cc +++ b/lib/hackrf/hackrf_source_c.cc @@ -168,7 +168,7 @@ hackrf_source_c::hackrf_source_c (const std::string &args) set_sample_rate( get_sample_rates().start() ); set_bandwidth( 0 ); - set_gain( 14 ); /* enable AMP gain stage by default */ + set_gain( 0 ); /* disable AMP gain stage by default to protect full sprectrum pre-amp from physical damage */ set_if_gain( 16 ); /* preset to a reasonable default (non-GRC use case) */