Архив за 28.05.2019

Can I use it as hf balloon ?

Can I use it as hf balloon ? submitted by /u/vir3nder
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WXtoImg "decoding" nothing but solid black images

I'm using SDRconsole with an RSP2.

Have the SDRc set to automatically record IQ files as satellites such as NOAA 19 pass overhead, the software automatically tunes appropriately, and I can hear the pulses of data through my speakers.

The software generates a long list of IQ wav files, each of which is just under 100Mb in size.

When I import the file in to WXtoImg I get a solid black image, the text above which reads along the lines of "NOAA (ch 1-1) at <timestamp>"

At the very bottom of the image is red text reading "Warning: number of lines in image exceeded 4096"

What step(s) am I missing?

submitted by /u/RemorsefulSurvivor
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RTL-SDR Discussion • Re: Using SDR and computer to send data over internet

Whether possible depends on the protocol used by the 900 MHz radios (e.g. any message response latency requirements, etc.). If possible, it would require some full duplex SDR radios, such as the Hack RF, LimeSDR, Ettus Research, and etc. which are more expensive than RTL-SDR plug-ins.

Statistics: Posted by hotpaw2 — Tue May 28, 2019 1:06 pm


Продам оба свистка за 1500, доставка почтой. В работе практически не были….


Продам оба свистка за 1500, доставка почтой. В работе практически не были.

DVB-T record and replay

Hi guys

Here's the setup :

I connected a SDR dongle (NESDR Smart xtr) to a working dvb-antenna, scanned the frequencies for my region and got a nice channels.xspf file for VLC.

w_scan -ft -L -c FR > channels.xspf

Then, I ran VLC using the channels.xspf file and could navigate through the different TV channels.

vlc channels.xspf

At this point I know the infos from the xspf file are ok, and the antenna is working properly.

A quick look athe file gave somme usefull informations :

<title>0033. TF1 S&#x00E9;ries Films</title>

<location>dvb-t://frequency=642000000</location>

<extension application="[http://www.videolan.org/vlc/playlist/0](http://www.videolan.org/vlc/playlist/0)">

<vlc:option>dvb-bandwidth=8/vlc:option

<vlc:option>dvb-ts-id=10/vlc:option

<vlc:option>dvb-modulation=64QAM/vlc:option

<vlc:option>dvb-transmission=8/vlc:option

<vlc:option>dvb-guard=1/8/vlc:option

<vlc:id>34/vlc:id

<vlc:option>program=2561/vlc:option

I recorded the 642Mhz frequency with a hackrf, pluged the hackrf to the previous SDR dongle (with a 50Ohm patch) and tried to replay it in vlc using the same channels.xspf file.

NOTHING.

What am I doing wrong ? I tried various parameters during the record or the replay (gain, sample rate, filter), tried attenuators (-6, -20 and -30dB) just in case. NOTHING.

submitted by /u/shelterin
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Comment on RTL-SDR Tutorial: Cheap AIS Ship Tracking by oss

Hi guys. aisdeco2.exe currently shows up as a virus at virustotal.

A thought I’m sure all beginners have.

Apologies in advanced if this topic has been asked too many times. So I just bought a rtlsdr from Amazon and as I watch the demos and tutorials, one of them was monitoring the planes flying by visually and listening to air traffic control. In the USA is this legal? If so can you record and share, I would imagine so since there are tutorials all on YouTube and what not?

I'm not talking about neighbors' private phone conversations type communication. I'm talking about the air traffic communication specifically like plane positioning..

submitted by /u/GRIMETIM3
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Кто-нибудь юзал прогу SDRAngel ? На русско язычных форумах информации…

Testing out SDRAngel with an RTL-SDR
Кто-нибудь юзал прогу SDRAngel ?
На русско язычных форумах информации практически нет.

Имеет некоторые удобные функции, такие как встроенный декодер DSD, который можно использовать для легкого декодирования DMR/MOTOTRBO, dPMR, D-STAR и Yaesu System Fusion (YSF). Декодер основан на библиотеке DSDcc, которая является полной перезаписью исходного программного обеспечения DSD с открытым исходным кодом, также имеет LoRa и аналоговые ТВ (ATV) декодеры.
Существует также возможность одновременно запускать несколько SDR в одном экземпляре программного обеспечения.
Совместима с Windows и Linux.

Ссыль: https://www.rtl-sdr.com/testing-out-sdrangel-with-an-rtl-sdr/

Whats the cheapest SDR for OpenBTS?

I'm looking for the cheapest SDR that works for OpenBTS. I'm doing this for a school project which is why I want it to be cheap

submitted by /u/Cman1468
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RTL-SDR Discussion • Re: SDRSharp -v- HDSLR

Thanks. Alan, I'll have a look tonight.

Statistics: Posted by Lasithi773 — Tue May 28, 2019 6:24 am


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