****READ FIRST!**** How to ask a troubleshooting question

[rtlsdrblog]

Please read this first before asking a troubleshooting question.

First please ensure that you have carefully gone through our quickstart guide at www.rtl-sdr.com/QSG and the troubleshooting section just below it. Also please read the V3 features guide if your questions relates to the bias tee or HF modes www.rtl-sdr.com/V3.

If you continue to have problems please post in this forum.

Things to include in your question that will help:

1) A clear description of what you are trying to do.
2) The EXACT error message that you receive.
3) A screenshot of the error message and anything related. e.g. a screenshot of the SDR# settings, of zadig etc can be very helpful.
4) Steps you have already tried to resolve the problem.

[srudnick]

RF gain slider on RTL-SDR R820T is at 0 and no response to mouse. Set in Direct Sampling Q Branch Obviously no gain becsuse it doe not matter if antenna is plugged in.