Search found 21 matches
- Mon Jul 09, 2018 2:03 am
- Forum: RTL-SDR Discussion
- Topic: need to relocate RTL-SDR away from computer
- Replies: 6
- Views: 5692
Re: need to relocate RTL-SDR away from computer
Hi Cecil, It might seem logical, but I am trying to avoid the coax solution because I'd like to avoid an antenna mounted LNA if possible. The LNA cannot be broadbanded, so it prevents me from using the RTL-SDR on other frequencies. And, my purpose is to chase aircraft band DX, so being able to hear ...
- Sun Jul 08, 2018 11:49 pm
- Forum: RTL-SDR Discussion
- Topic: need to relocate RTL-SDR away from computer
- Replies: 6
- Views: 5692
need to relocate RTL-SDR away from computer
Hi All, I discovered, the hard way, that having a quarter wave antenna on the RTL-SDR doesn't work-the computer makes to much rf noise. So, I need to relocate the RTL-SDR away from the computer....actually I could relocate the antenna-but coax is expensive and lossy in terms of being able to copy we...
- Sun Jul 08, 2018 11:25 pm
- Forum: RTL-SDR Discussion
- Topic: SDR# scanner plugin
- Replies: 6
- Views: 7992
Re: SDR# scanner plugin
IC! I can't imagine the time to lock the clock multiplier PLL's would allow scanning at any decent rate. I have experience with clock multiplier based local oscillators connected to rotary encoders, allowing the user to 'tune' using the hand instead of the mouse. Even for frequency excursions of a f...
- Sun Jul 08, 2018 11:17 pm
- Forum: RTL-SDR Discussion
- Topic: Unidentified chip replacing the R820T2
- Replies: 5
- Views: 5643
Re: Unidentified chip replacing the R820T2
RTLSDRBLOG et al, Not releasing the schematic does squat::> The Chinese skim parts they manufacture for customers, customers who have GIVEN all the technical knowledge to manufacture and build the end product. The only way to be safe is to build the products in the US, which of course costs more::> ...
- Sun Jul 08, 2018 11:04 pm
- Forum: RTL-SDR Discussion
- Topic: Schematic for RTL-SDR V3
- Replies: 7
- Views: 8236
Re: Schematic for RTL-SDR V3
I believe 5v and 3.3 volts are needed, and I thought I saw power conversion inductors on the PCB-so I assumed that those inductors were attached to switching supplies. And, I thought I heard some chatter about the need to relocate them in order to improve the receivers sensitivity? Perhaps I was mis...
- Sat Jul 07, 2018 4:44 am
- Forum: Troubleshooting Help
- Topic: ubuntu 16.04 and gnu radio: only noise
- Replies: 3
- Views: 7015
Re: ubuntu 16.04 and gnu radio: only noise
Unless you really need GNU radio for development work or advanced functions, I suggest you use gqrx. Without following any of the instructions that come with your RTL-SDR, make sure you have the universe and multiverse repositories enabled and use Synaptic to install gqrx. It will download all the d...
- Sat Jul 07, 2018 4:29 am
- Forum: Troubleshooting Help
- Topic: sdr rtl wirelles
- Replies: 2
- Views: 2617
Re: sdr rtl wirelles
My translation is that the OP wants suggestions for eliminating the coax run by using a wireless (full duplex) transceiver to transfer digital data that would normally be sent over the usb cable. This is also an area of interest for me, I have a 100 foot tower, with power available for an RTL-SDR in...
- Sat Jul 07, 2018 4:06 am
- Forum: Troubleshooting Help
- Topic: New R820T2 Dongle Suddenly Unrecognized
- Replies: 4
- Views: 4131
Re: New R820T2 Dongle Suddenly Unrecognized
Is there any chance your windows punchbox did an OS update? These can wipe out drivers that you added manually.
1ABA
1ABA
- Sat Jul 07, 2018 4:04 am
- Forum: Troubleshooting Help
- Topic: Spectrum Display Noise Floor Randomly Lowers
- Replies: 6
- Views: 5792
Re: Spectrum Display Noise Floor Randomly Lowers
You are seeing proof, right before your eyes that the RTL-SDR is overloading. It can happen in the tuner as the result of marginal mixer operation or in the A to D converter (when it's maximum total power input is exceeded). With the RTL-SDR's 40 db dynamic range and lack of tuned input filters, it ...
- Sat Jul 07, 2018 3:18 am
- Forum: Off-Topic
- Topic: NSA Tracking of powered down cellphones and other wireless devices
- Replies: 7
- Views: 23685
Re: NSA Tracking of powered down cellphones and other wireless devices
Keep in mind that the NSA mandates that OEM's include backdoors in most devices, whether they be hardware or software. Snoden is your friend, check out some of his releases::> Linux is managed and distributed outside US jurisdiction, which makes inclusion of software in the operating system more dif...