Search found 2697 matches

by rtlsdrblog
Tue Apr 19, 2016 12:14 am
Forum: Troubleshooting Help
Topic: ADSB performance on PC vs. Raspberry Pi
Replies: 4
Views: 8070

Re: ADSB performance on PC vs. Raspberry Pi

Performance on the PI should be similar, as it should have enough processing power. Have you tested using the same program on both the PC and Pi? Why don't you test with dump1090 on Windows too? Other things: Could the Pi be more noisy than your PC? Run a rtl_tcp server on the Pi and log on to it wi...
by rtlsdrblog
Tue Apr 19, 2016 12:10 am
Forum: RTL-SDR Discussion
Topic: HDSDR for first time
Replies: 1
Views: 3947

Re: HDSDR for first time

Did you install the drivers via zadig first? Step 2-6 on the HDSDR guide. Usually this message shows when you haven't installed the drivers.
by rtlsdrblog
Tue Apr 19, 2016 12:04 am
Forum: RTL-SDR Discussion
Topic: Power scan with a graphical plug-in
Replies: 5
Views: 7455

Re: Power scan with a graphical plug-in

I'm not sure if a plugin exists that has all those features. You'd probably need to write a script based on rtl_power if you wanted to do all that.
by rtlsdrblog
Tue Apr 19, 2016 12:01 am
Forum: RTL-SDR Discussion
Topic: Flightaware dongle -> RTL-SDR Blog Metal Case / Thermal Pad
Replies: 1
Views: 4496

Re: Flightaware dongle -> RTL-SDR Blog Metal Case / Thermal

The FA unit will fit into our metal cases.
by rtlsdrblog
Wed Apr 13, 2016 11:41 pm
Forum: User Projects
Topic: Help setting up GPS antenna for JAERO and Inmarsat?
Replies: 6
Views: 12152

Re: Help setting up GPS antenna for JAERO and Inmarsat?

The GPS antenna will definitely require power via the coax cable. You need a bias tee circuit that can provide between 3-5V to power most of these GPS antennas. Our RTL-SDR blog units have a bias tee that can be enabled by bridging two pads. If you don't have our unit then you can either build an ex...
by rtlsdrblog
Tue Apr 12, 2016 10:32 pm
Forum: Troubleshooting Help
Topic: Trouble receiving anything?
Replies: 17
Views: 22654

Re: Trouble receiving anything?

What frequencies have you been trying to receive? That's a direct sampling modded RTL-SDR, so to receive HF you will need to the the Q-branch sampling mode in SDR# (in the configuration screen change from Quadrature mode to Q-branch). The HF antenna goes into the HF plug, and the VHF antenna goes in...
by rtlsdrblog
Mon Apr 11, 2016 10:47 pm
Forum: Troubleshooting Help
Topic: Trouble receiving anything?
Replies: 17
Views: 22654

Re: Trouble receiving anything?

Can you show a link to the exact RTL-SDR model that you purchased? Also what frequencies are you trying to receive with that antenna?
by rtlsdrblog
Mon Apr 11, 2016 10:44 pm
Forum: RTL-SDR Discussion
Topic: Receiver 'gain'
Replies: 2
Views: 5539

Re: Receiver 'gain'

The scale in SDR# is not in dBm, it is in dBFS (dB Full Scale), so it is relative to the ADC input. 0dB in SDR# shows that the signal is at the maximum of the ADC.
by rtlsdrblog
Fri Apr 08, 2016 5:58 am
Forum: RTL-SDR Discussion
Topic: Test R820T vs R820T2 RTL_Test -t not showing R80T2 tuner.
Replies: 2
Views: 5210

Re: Test R820T vs R820T2 RTL_Test -t not showing R80T2 tun

The R820T and R820T2 are electronically identical, with only some very small changes on the inside. It is normal for rtl_test to return that it is a R820T. The only way to check for sure would be to open the case and read the marking on the chip. But there haven't any cases of people falsely adverti...