Архив за 15.04.2018

TIL 75 Mhz ILS Marker Beacons

TIL 75 Mhz ILS Marker Beacons submitted by /u/sanjurjo
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шутка-минутка)…


шутка-минутка)

Troubleshooting Help • Re: Newer Versions SDR sharp do not recognize DVB-T-Dongles ?

Hi,
thanks for remembering to install-rtlsdr.bat. Some of the older versions have been installed from the scratch (zip) in new directories. They started without running the batch file. But in the past I already used the batch file sometimes.

The newest version works fine after installing and running install-rtlsdr.bat.

Tnx
Axel

Statistics: Posted by axman_rf — Sun Apr 15, 2018 9:35 pm


Comment on Hiring a Dev for Direction Finding & Passive Radar Software by DB Gain

You might try here if no one comes forward;
http://sensicomm.nfshost.com/

Comment on TETRA Decoder Plugin for SDR# Now Available by Anonymous

Maybe you’re trying to listen to an encrypted station

С Днем космонавтики!Написал тут приложение для Android с живыми обоями с нашего…

Приложения в Google Play – Обои со спутника
С Днем космонавтики!

Написал тут приложение для Android с живыми обоями с нашего любимого Электро-Л.
Плюс еще пара источников поддерживается: Himawari-8 и картинка дня от NASA. Пользуйтесь на здоровье)

Немного реклама, совсем чуть чуть.программа Sounevis. позволяет поставить анимацию под музыку на рабочий стол.Тема с планетой супер. …

Polar Lights | NV (1920x1080)

Polar Lights | NV (1920x1080) (00:03:31)

Немного реклама, совсем чуть чуть.
программа Sounevis. позволяет поставить анимацию под музыку на рабочий стол.
Тема с планетой супер.
https://youtu.be/f08WE1t8L9A

Comment on Hiring a Dev for Direction Finding & Passive Radar Software by AD5NL

Most of the passive coherent radar examples that I have seen online have been targeted toward detecting airplanes. As I understand the concept, one can gauge the distance/velocity of an object by the difference in timing/frequency of a signal received directly from a strong transmitter (for example an FM radio station) and the reflected signal. I believe one must use two directional antennas (one pointed directly toward the transmitter and one pointed away).

The key to this is having two receivers with the same clock controlling them.

I imagine the RTL-SDR.com is planning on releasing such hardware (indeed I seem to recall that being rumored or discussed for a while).

My big hope is that this will also work for other hardware, for example the limesdr. (Both receiver channels on the full-not-mini LimeSDR are driven by the same clock I believe).

Question about building a 137MHz filter

Hi all,

I'm trying to build this filter for NOAA weather imagery : https://www.rtl-sdr.com/building-a-diy-137-mhz-band-pass-filter/.

I have all of the components now, apart from a pcb. I already have some spare copper strip board, ie https://www.rapidonline.com/stripboard-29453, and I'm trying to figure out whether this will be suitable?

Do I need to match the thickness and width of the copper tracks to achieve 50 Ohm impedance or can I just use the board I have without thinking about it?

Thanks in advance

Matt

submitted by /u/mechanicalraspberry
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Comment on Hiring a Dev for Direction Finding & Passive Radar Software by admin

The core code will likely be released as open source.

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