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1. RTL SDR DONGLE WXTOIMG HOW TO
2. RTL SDR DONGLE WXTOIMG MOD
3. RTL SDR DONGLE WXTOIMG DRIVER
4. RTL SDR DONGLE WXTOIMG CODE
5. RTL SDR DONGLE WXTOIMG TV

RTL SDR DONGLE WXTOIMG CODE

I just check the code and there is definitely decoding for B groups also involved, but where I see the problem is that when I check the exact radio station with the 'gqrx' radio app which has also rds decoder It gets all the demand information also as fast as other radio that has 2A groups instead(which i get also immediatelly). I think the problem is at reception power(gain), but I might be wrong.

RTL SDR DONGLE WXTOIMG HOW TO

Printf(",\"radiotext\":\"%s\"",rt_.getLastCompleteStringTrimmed().c_str()) } - but i don't know where to put it and if does it make any sence or how to modify the script to do that. Any kind of advice would bring me a lot of happiness, since I have very little of programming skill.Īnd also, for trimming only one line of the radio stream I was wondering if i could help myself - with following if statement: And I have no idea how to start with even one single simple entry of radiotext being stored into database. I am using ubuntu 14.04 and I think that your redsea decoder could solved that without 2 much complicating with GNU radio: I would like to scan fm airband and from couple of captured stations I want to parse only radiotext group (one completed line per station), and then simultaneously by some database such as couchDB (apache) or maybe would be better RDBMS(Relational Database Management System) to store radiotext. Maybe only one filter before the atan2 might be needed? Greetings, Andreas Reply Delete Additionally, your small locking bandwidth and the large phase shift introduced by your filters (especially your 2.4kHz filter) could be improved. Which gives you the true phase error in all quadrants. Without having tested it I would suggest to use: Additionally, on a real signal I see it sometimes locking and sometimes not. I did a simulation of the signal which confirms this. But this is wrong as long as your PLL is not locking. I think you assume d_phi is small and use sin(2*d_phi) ~ 2*d_phi. With this your d_phi_sc should converge towards 2*0.5*sin(2*d_phi). I assume the signal as sample = cos(phi) which gives you after mixing (=multiplication) + filtering the sin or cos of the phase difference d_phi.

Here sc_phi is the phase of your PLL signal and LP and LP_PLL are your two low pass filters. cos(d_phi)Īnd bb1 = LP(sample*sin(sc_phi)) approx. With bb0 = LP(sample*cos(sc_phi)) approx. In your C-code you calculate the phase error: Nevertheless, I have a few comments on your PLL. In contrast, the Planar Disk is almost free and it performs quite well in an indoor setting.Hi, thank you for the nice post. Just because an antenna "is sold" does not mean its good or even marginal. Please verify your dongle is working with a good antenna before complaining that you cannot receive something. Here is a great, broadband Planar Disk Antenna that outperforms most commercial antennas of similar size for under $65-75 and can be built in a half hour or less by beginners with less than $10 in parts. See our wiki with tutorials and other resources including a Quick Start page to verify your dongle works.

RTL SDR DONGLE WXTOIMG DRIVER

The rtl-sdr project page Source of the rtl-sdr driver software and hub for its continued development. Resources - Please read this first - before posting! Max sample rate: 3.2 MS/s (2.6 MS/s in practice).Frequency range : 24 - >1760 MHz (100 KHz - 24 MHz in direct sampling mode).Typical specs (some depend on specific tuner): All rtl-sdr compatible devices employ the RTL2832U as an ADC and USB controller, but different RF tuners may be used.

RTL SDR DONGLE WXTOIMG TV

"rtl-sdr" is a generic term for cheap USB digital TV (DVB-T) receivers that use the Realtek RTL2832U chipset, which can function as general purpose software defined radios (receive only). While originally dedicated just to the rtl-sdr project, relevant legal content related to general SDR, RF and similar projects is also welcomed.įeel free to ask questions but please check the wiki first. Use self / text posts for your immediate inquiries and general posts.Ī subreddit for the low-cost, DIY software defined radio (SDR) community.

RTL SDR DONGLE WXTOIMG MOD

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