Search found 2890 matches

by rtlsdrblog
Mon May 10, 2021 4:10 am
Forum: Troubleshooting Help
Topic: rtl_tcp tuner agc problem in android, but not in windows
Replies: 1
Views: 817

Re: rtl_tcp tuner agc problem in android, but not in windows

With the E4000 you need to activate offset tuning for it to work properly. There should be a setting in the Android app.
by rtlsdrblog
Mon May 10, 2021 4:07 am
Forum: Antennas
Topic: Connecting RTL-SDR V3 on master antenna system in the building
Replies: 4
Views: 360

Re: Connecting RTL-SDR V3 on master antenna system in the building

The roof antenna will most likely be a Yagi directional antenna pointing to a TV tower. So it will receive the TV signals well, but everything else not in that direction poorly. That said, reception of other signals may still be better than with the indoor antenna. It should be safe to connect to yo...
by rtlsdrblog
Mon May 10, 2021 3:57 am
Forum: KerberosSDR
Topic: UCA antenna spacing for UWB DOA
Replies: 1
Views: 287

Re: UCA antenna spacing for UWB DOA

Are you testing indoors or in a high multipath environment? As the spacing factor reduces with lower frequency, you will start to see multipath skew results much more significantly for a fixed size array. There's really no way around using two or more different sized arrays for direction finding if ...
by rtlsdrblog
Mon May 10, 2021 2:30 am
Forum: KerberosSDR
Topic: Resizing Kerberos software for 6.8"' screen
Replies: 1
Views: 789

Re: Resizing Kerberos software for 6.8"' screen

You might need to adjust the settings in the Pi's config.txt, https://www.raspberrypi.org/documentation/configuration/config-txt/video.md We had to make some special settings in config.txt order to make the resolution work properly through VNC, that might prevent it from displaying properly on a sma...
by rtlsdrblog
Mon May 10, 2021 2:29 am
Forum: KerberosSDR
Topic: Minimum amount of antennas
Replies: 1
Views: 216

Re: Minimum amount of antennas

The Kerberos software expects 4 to work.

The new Kraken code can support an arbitrary number of antennas however.
by rtlsdrblog
Mon May 10, 2021 2:27 am
Forum: User Projects
Topic: ADSB with high-end Arduino?
Replies: 1
Views: 232

Re: ADSB with high-end Arduino?

The drivers require a Linux OS, so you'll definitely need something capable of running an OS first of all. The IQ data does come in in real time, so you do need a CPU to process the DSP too. A Pi Zero is probably the minimum spec you can use.
by rtlsdrblog
Mon May 10, 2021 2:25 am
Forum: Troubleshooting Help
Topic: Buzzing but no AM signal
Replies: 6
Views: 13253

Re: Buzzing but no AM signal

Hi all, I'm new here and an amateur on sdr-radio. As an old private pilot (retired) I'd very much like to listen to the airbands. I've got and installed the RTL-SDR.COM dongle with appropiate sowftware and can listen to commercial fm-radios bur when commin up to airband-voice no voice!!?? Please se...
by rtlsdrblog
Mon May 10, 2021 2:23 am
Forum: Troubleshooting Help
Topic: I installed the wrong driver
Replies: 1
Views: 217

Re: I installed the wrong driver

You can replace the wrong driver in Windows device manager by right clicking -> update driver -> browse local computer -> Let me pick -> then choose the previous driver.
by rtlsdrblog
Mon May 10, 2021 2:18 am
Forum: RTL-SDR Discussion
Topic: RTLSDR and USB Full Speed
Replies: 2
Views: 321

Re: RTLSDR and USB Full Speed

The RTL2832U requires 2.0 high speed, it won't work in FS mode regardless of what sample rate you use.
by rtlsdrblog
Thu Apr 29, 2021 11:23 am
Forum: RTL-SDR Discussion
Topic: How hot is hot?
Replies: 5
Views: 559

Re: How hot is hot?

The metal case is thermally interfaced with the PCB via a thermal pad, so the case acts as a heat sink. It can feel hot to the touch because of this, but that's normal. The R820T2 tuner is fairly power hungry for a tuner, but that just means it has good performance. Unless you're keeping the dongle ...