Архив за 03.07.2018

Signal Identification Help • Re: 3600 Bd FSK

A waterfall screenshot and sound sample would help. As well as information about your country and location.

But it's most likely just some telemetry.

Statistics: Posted by rtlsdrblog — Tue Jul 03, 2018 11:21 pm


Comment on Noise Cancellation using Linrad and the Phase Coherent Capabilities of an RSPduo by Anonymous

really?

Problems with decoding Meteor M2 data

I'm relatively new to the world of amateur radio but over the last several days I have gotten pretty good images from the NOAA satellites and decided to take on Meteor. I'll explain what I've been doing so far in the chance that I'm forgetting something simple.

I am able to get what I think is an ok signal from Meteor M2. During my recordings however NOAA 18 decided to stop and picked it's signal ontop of the Meteors. This only happened for maybe a combined 30 seconds out of the entire 4 minutes of recording. I converted the base band through Audacity at 130000. Ran it through LRPtx which shows 4 clean dots for a good amount of time, there are periods where the the signal would deteriorate. When I run the .raw through the LRPT offline decoder no image generates. I have messed around with a few settings in LRPtx but it doesn't seem to make a difference. I will link my .raw and converted recordings below. Any help would be much appreciated.

Thanks!

Meteor.raws [Meteor converted audio](http://www.mediafire.com/file/htv2itw8u3vglt6/Meteor%20M2%20converted%20recordings.zip}

submitted by /u/f16v1per
[link] [comments]

Comment on Noise Cancellation using Linrad and the Phase Coherent Capabilities of an RSPduo by Jake Brodsky

The concept works, and it’s not new. See http://www.mfjenterprises.com/Product.php?productid=MFJ-1026

The only new thing about it is that we’re using software to do what we used to use hardware to accomplish.

Troubleshooting Help • Re: Coherent daisy chain clocks (for passive radar)

reinstantiate a new sdr object in matlab,

in short, don't do this:

sdrRx2 = sdrRx;
sdrRx2.RadioAddress = '2';

do this:

sdrRx = comm.SDRRTLReceiver(...
'CenterFrequency', fc, ...
'EnableTunerAGC', true, ...
'SampleRate', sampleRate, ...
'SamplesPerFrame', n, ...% 'TunerGain', 20, ...
'OutputDataType', 'double');

sdrRx2 = comm.SDRRTLReceiver(...
'CenterFrequency', fc, ...
'EnableTunerAGC', true, ...
'SampleRate', sampleRate, ...
'SamplesPerFrame', n, ...% 'TunerGain', 20, ...
'OutputDataType', 'double',...
'RadioAddress','02');

matlab will force the Radio Address of both objects back to the original one if you don't make a fresh one

Statistics: Posted by seeFar010 — Tue Jul 03, 2018 6:04 pm


Comment on SDR# TETRA Decoder Plugin Updated by Mariks

Clean windows 10 x64 with HackRF
1. install zadig driver
2. download SDR#
3. download plugin, edit files (just as instructed).
4.SDR# radio settings: NFM, Step Size 25kHz – it may vary in your case
5.

Signal Identification Help • 3600 Bd FSK

i am receiving a lot of 3600 Bd FSK signals in V/UHF , does anyone know what type of signals ?

Statistics: Posted by mahmoudshakra — Tue Jul 03, 2018 3:34 pm


RTL-SDR Discussion • 3600 FSK

hello .
i am receiving 3600 FSK signal in V/UHF band ? does anyone knows what type of signals ?

Statistics: Posted by mahmoudshakra — Tue Jul 03, 2018 3:20 pm


Recorded: ARISS school contact with KFG in Bonn — 3rd july 2018

Recorded: ARISS school contact with KFG in Bonn - 3rd july 2018 submitted by /u/Tysonpower
[link] [comments]

User Projects • USB via Fiberglas Adapter

Hi
I will buy an Adapter who allow me transfer USB "Data" truth an Media Converter who allow me to have the USB SDR Adapter near the Antenna and my Server in the Basement can decode it. Why is that so important for me? Thats simple the Server run with some % load and have an huge Ram. On the Physical Server there run an Virtual System who allow me to reboot every Virtual System separately. :D
I found 2 different Products on the Market who look interesting and I will contact the Company for more Information about.
When I have it at Home I will write an Review. The good thing with the System is I can use "any" Cable with the Plugs so 50m, 100m, 300m,... arent any Problem (just for your Wallet).

Statistics: Posted by Username — Tue Jul 03, 2018 2:50 pm


Перевод
Рубрики
Июль 2018
Пн Вт Ср Чт Пт Сб Вс
« Июн   Авг »
 1
2345678
9101112131415
16171819202122
23242526272829
3031