Search found 2781 matches

by rtlsdrblog
Tue May 17, 2016 10:20 am
Forum: User Projects
Topic: Boot Key Cruisers Net on the Net
Replies: 13
Views: 41268

Re: Boot Key Cruisers Net on the Net

Nice happy to see your making some progress. A bandpass filter isn't too complicated to make, though I do say that assuming you have minor circuit building/electronics skills. There are a few calculators on the web: http://www.allaboutcircuits.com/tools/bandpass-filter-calculator/. Another much simp...
by rtlsdrblog
Tue May 17, 2016 10:14 am
Forum: Antennas
Topic: tv antenna for sdr / tv
Replies: 3
Views: 9928

Re: tv antenna for sdr / tv

Hmm well that's a satellite dish designed for receiving satellite signals. If you want to listen to L-band signals at around 1.5 GHz it will probably work well, but you will need to check if the LNB (the amplifier and downconverter on the dish) on the dish is working, and check how to power it, and ...
by rtlsdrblog
Sun May 15, 2016 6:01 am
Forum: Antennas
Topic: Suitable Low Noise Amplifier
Replies: 9
Views: 18938

Re: Suitable Low Noise Amplifier

Wait, I think you are making a mistake here. Do you have an upconverter? The balun 1:9 is designed for connecting a "long wire" or "random wire" antenna (basically just a stretch of wire as long as you can get it), and this type of antenna is normally used for HF signals (0 - 30 MHz). These frequenc...
by rtlsdrblog
Sun May 15, 2016 5:50 am
Forum: Antennas
Topic: Do magnets interfere with RF?
Replies: 3
Views: 10792

Re: Do magnets interfere with RF?

No magnets won't affect RF signals, so your idea should work fine.
by rtlsdrblog
Sun May 15, 2016 5:45 am
Forum: User Projects
Topic: Boot Key Cruisers Net on the Net
Replies: 13
Views: 41268

Re: Boot Key Cruisers Net on the Net

Is there a strong pager signal at a nearby frequency? Around 150 MHz there are sometimes very strong pagers that can cause overloading and interference to nearby marine signals. A strong pager would explain the intermittent interference, as they usually transmit for a few seconds at a time, and they...
by rtlsdrblog
Sun May 15, 2016 5:34 am
Forum: RTL-SDR Discussion
Topic: 434 Mhz remote control signal and rtl_power heatmap
Replies: 2
Views: 7593

Re: 434 Mhz remote control signal and rtl_power heatmap

rtl_power works by sequentially scanning swaths of 2 MHz of bandwidth between the min and max frequencies that you specify. Scanning between 400M to 600M will probably take over one second to do. So since your signal is only 1 second long, it is possible that rtl_power is scanning other frequencies ...
by rtlsdrblog
Sat May 14, 2016 2:07 am
Forum: RTL-SDR Discussion
Topic: RTL-SDR of 6, 7 and 8 MHz bandwidth
Replies: 1
Views: 6523

Re: RTL-SDR of 6, 7 and 8 MHz bandwidth

There's no problem with GNU Radio. The RTL-SDR can only do 3.2 MHz MAX in SDR mode. The SDR mode is different to the mode used in DVB-T mode. DVB-T mode works differently and doesn't use the SDR features, so those bandwidth specifications are irrelevant for SDR use. The SDR mode was originally added...
by rtlsdrblog
Wed May 11, 2016 1:40 am
Forum: RTL-SDR Discussion
Topic: SDR with ATSC tuner
Replies: 1
Views: 5526

Re: SDR with ATSC tuner

No only units with the RTL2832U chipset can be used for SDR, and there are no ATSC dongles that use that chip.
by rtlsdrblog
Tue May 10, 2016 2:11 am
Forum: Antennas
Topic: Suitable Low Noise Amplifier
Replies: 9
Views: 18938

Re: Suitable Low Noise Amplifier

Yes you can use that LNA. Though not much useful information is given about that one, in particular no noise figure measurement. But it should be good enough for most purposes anyway. Place it are close to the antenna as possible. It won't help that much if it's placed right next to the dongle when ...
by rtlsdrblog
Mon May 09, 2016 10:13 am
Forum: Troubleshooting Help
Topic: sharp sdr# does not show a devise in conroller box.
Replies: 28
Views: 59533

Re: sharp sdr# does not show a devise in conroller box.

What driver do you see installed in device manager?

Does zadig run correctly and allow you to install the WinUSB drivers?

After running install-rtlsdr.bat do you see the file rtlsdr.dll in the SDR# folder?

What if you try another program like HDSDR, does that work?