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Метеор 2М. Волгоград 09:45, высота 88 градусов и фотки неба во время пролета….









Метеор 2М. Волгоград 09:45, высота 88 градусов и фотки неба во время пролета.

ноа 19 78 градусов, 14.53 термальный и канал А, Выкса, airspy mini, планшет, квадрофиляр…



ноа 19 78 градусов, 14.53 термальный и канал А, Выкса, airspy mini, планшет, квадрофиляр

Quick questions regarding QFH from radiosonde

Hello world!

I finally soldered a SMA connector to a QFH antenna from Vaisala radiosonde I purchased ages ago.

Antenna and Closeup

Is this the only way to connect to the antenna? I have seen couple of versions, like this one: Some wires to top

Also, is there any real benefit of groundplane like this

I try to find better option for my modified GPS patch antenna, which is actually pretty ok... My primary aim is on the Iridium frequencies. My setup will be QFH -> LNA4ALL -> Adam's Filter -> LNA4ALL. Local FM broadcast might push through, what would be best placing for FM blocking filter? Before the first LNA to stop it overloading?

Anyways, I will have all Sunday to play around different setups :-)

submitted by /u/tsimola
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Comment on Quick Start Guide by Beer It

Have you gone through every single step of the rtl-sdr dongle setup guide, it should work for a generic stick with the RTL2832 chip in it.
https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/

NOAA 18 @80deg ELEV via v-dipole, spf5189 lna, dc block and homemade helical bandpass filter on odroid, still noisy!

For the past few days, I've been debugging where the noise on the image was coming from. I previously used a 2m bandpass filter which I bought on Ebay. I thought it was the culprit but it wasn't. I also removed spf5189 LNA because I thought it was the culprit too but it wasn't either. I made a recording without them and the image I captured had the same noise patterns. They were all captured using rtl_fm. I tried a recording on my mac and had the same noise patterns.
Today, I tried capturing again on odroid but this time I used GQRX. I still got the same noise pattern. My guess is that the v-dipole setup I have cannot receive on a specific elevation due to obstacles. However, I had qfh antenna before which is 15-17 lower and was cleaner(but something happened to it). Anyways, here are my capture for today - https://imgur.com/a/9Oq1D
I also cannot tell the orientation of the image because wxtoimg couldn't figure it out even if I have already touch'd the filename with the correct timestamp(start of recording) as well as corrected the filename based on the filename expected by wxtoimg.
I'm not really sure how to get rid of that noise in the middle. Ideas? Debugging tips?

submitted by /u/Oxffff0000
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Comment on Quick Start Guide by Chuck

I’ll try this again, the the input device string is empty: key=”inputDevice” value=””

Comment on Quick Start Guide by Chuck

Looking at the SDRSharp.exe.Config file I see that is empty.

Comment on Quick Start Guide by Chuck

Apparently this question was ask at the ADAFruit support forum with no satisfactory resolution. https://forums.adafruit.com/viewtopic.php?f=53&t=117930&p=615565&hilit=SDR#p615565

В ней можно выделить 2 точки сигнала и посмотреть временной интервал между ними. Хватит ли точности — тут не знаю.

DVE пишет:
В ней можно выделить 2 точки сигнала и посмотреть временной интервал между ними. Хватит ли точности - тут не знаю.
читать полностью...
Широкополосный приёмник из DVB донгла - Страница #523

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при чем тут эта прога? Как она вам поможет рассчитать задержку меж тремя приемниками?

ivanovgoga пишет:
при чем тут эта прога? Как она вам поможет рассчитать задержку меж тремя приемниками?
читать полностью...
Широкополосный приёмник из DVB донгла - Страница #523

-- Delivered by Feed43 service

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