Search found 44 matches

by Remon
Sat Jun 30, 2018 6:10 pm
Forum: RTL-SDR Discussion
Topic: Broadcast FM Reject Filter: loose contacts
Replies: 2
Views: 1208

Broadcast FM Reject Filter: loose contacts

While browsing Youtube I accidentally found this video: https://youtu.be/p4qHqQ1-qY0 Curious as I am I opened my filter finding the same issue. Unfortunately I didn't make a before picture. They used soldering wire which was hard the melt, even on high temperatures. I added 60/40 resin core solder a...
by Remon
Sat Jun 30, 2018 12:23 am
Forum: RTL-SDR Discussion
Topic: Allocating 15 zero-copy buffers (rtl_tcp)
Replies: 0
Views: 1545

Allocating 15 zero-copy buffers (rtl_tcp)

I've seen this since today. Any idea what this is? [email protected]:~ $ rtl_tcp -a 192.168.178.234 Found 1 device(s): 0: Realtek, RTL2838UHIDIR, SN: 00000001 Using device 0: Generic RTL2832U OEM Found Rafael Micro R820T tuner [R82XX] PLL not locked! Tuned to 100000000 Hz. listening... Use the device a...
by Remon
Fri Jun 29, 2018 11:42 pm
Forum: RTL-SDR Discussion
Topic: V3 dongle overheating?
Replies: 18
Views: 11344

Re: V3 dongle overheating?

I have 3 RTL-TCP V3 dongles. They all become very hot during listening with high RF gain.
by Remon
Fri Jun 29, 2018 11:05 pm
Forum: RTL-SDR Discussion
Topic: SDR# IQ from Sound Card bandwidth
Replies: 6
Views: 2495

Re: SDR# IQ from Sound Card bandwidth

I solved the problem with a different approach: I found a piece of software that's in between SDR# and my RTL_TCP server. In fact it's a splitter that connects to the server and adds an extra listen only stream on another port. I can open 2 instances of SDR# this way.
by Remon
Fri Jun 29, 2018 11:01 pm
Forum: RTL-SDR Discussion
Topic: Wintelive connecting to Linux server? (Tetra decoding)
Replies: 3
Views: 1395

Re: Wintelive connecting to Linux server? (Tetra decoding)

WinTelive is unstable, too complicated and can(in my case) only decode very strong signals with zero noise. I'm glad I didn't give up looking for a solution. First I wanted to buy an extra RTL-SDR stick but I now got what I want with SDR# and RTL TCP Muxer. It's splitting up the stream into one with...
by Remon
Fri Jun 29, 2018 10:57 pm
Forum: Troubleshooting Help
Topic: rtl-sdr keeps active and hot after killing rtl_tcp in Linux
Replies: 4
Views: 1886

Re: rtl-sdr keeps active and hot after killing rtl_tcp in Linux

I partially solved it by running rtl_tcp as a systemd service. I can now close it from another SSH session. But it kills the hard way if a client is still connected. I can solve this by starting and stopping it again with no clients connected after the forced kill.
by Remon
Fri Jun 29, 2018 6:22 pm
Forum: RTL-SDR Discussion
Topic: Wintelive connecting to Linux server? (Tetra decoding)
Replies: 3
Views: 1395

Re: Wintelive connecting to Linux server? (Tetra decoding)

I have GNU Radio connected to my RTL_TCP server, it receives data, MSYS is running and receiving data, but it isn't strong enough for WinTelive to decode. I even played with the gain.
by Remon
Thu Jun 28, 2018 9:42 pm
Forum: RTL-SDR Discussion
Topic: Wintelive connecting to Linux server? (Tetra decoding)
Replies: 3
Views: 1395

Wintelive connecting to Linux server? (Tetra decoding)

I know I can decode Tetra with SDR# but I want to monitor more than 1 frequency simultaniously. I have read that (win)telive can decode multiple Tetra frequencies at the same time. I also know there's a tutorial to install the Windows port. Problem in my case is that the RTL-SDR stick isn't connecte...
by Remon
Thu Jun 28, 2018 9:33 pm
Forum: RTL-SDR Discussion
Topic: SDR# IQ from Sound Card bandwidth
Replies: 6
Views: 2495

Re: SDR# IQ from Sound Card bandwidth

This topic can be closed. I'm trying to set it up with a different approach and will open a new topic.
by Remon
Wed Jun 27, 2018 1:04 am
Forum: RTL-SDR Discussion
Topic: SDR# IQ from Sound Card bandwidth
Replies: 6
Views: 2495

Re: SDR# IQ from Sound Card bandwidth

I already tried that in my soundcard settings. And I can't get the Telive port to work with a (virtual) audio cable input. It is expecting samples from a SDR over network.

Even static noise looks like this:

Image

Maybe I need to buy an extra RTL-TCP stick. :P