From 1c71100c107e2be8d06f7e18deda910ac7ac78e6 Mon Sep 17 00:00:00 2001 From: sommermorgentraum <24917424+zxkmm@users.noreply.github.com> Date: Sun, 28 Apr 2024 16:09:35 +0800 Subject: [PATCH] Updated Usage cautions (markdown) --- Usage-cautions.md | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/Usage-cautions.md b/Usage-cautions.md index 332276f..5bd2a35 100644 --- a/Usage-cautions.md +++ b/Usage-cautions.md @@ -6,4 +6,8 @@ The LNA of HackRF is extremely sensitive, thus you need to notice the following # Monitoring range - The LNA of hackrf is physically between SMA port and radio front end - Thus, you shouldn't receive near high power transmitters, even if it's not in the range that you are monitoring. -- For example: You are receiving FM radio at 100.00MHz, and there's a high power transmitter at 2.5GHz around you, the transmitter will still blow your LNA, if you set LNA/AMP too high and/or too near the transmitters, even if 2.5GHz is not in the freq range that you are monitoring. \ No newline at end of file +- For example: You are receiving FM radio at 100.00MHz, and there's a high power transmitter at 2.5GHz around you, the transmitter will still blow your LNA, if you set LNA/AMP too high and/or too near the transmitters, even if 2.5GHz is not in the freq range that you are monitoring. + +# I suspect I damaged the LNA, how do i check? +- Try listen local radio. Try with AMP on and off both. +- Try replay a **non**-rolling code (to prevent break the rolling sync) fob. Try with AMP on and off both. \ No newline at end of file