Архив за 23.12.2017

Sensitivity terminology confusion

Folks, I've been searching and reading the web about airspy, sdrplay, rtl-sdr dongles, etc since I'm going to get one for myself(still choosing). I'm confused when I see people post like "oh that airpspy is sensitive". What does that mean? Does it mean that our antenna has to provide clean data into the input of the device since it's very sensitive and can amplify noise too? Any help would be greatly appreciated!

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Top 5 of Software Defined Radio

Cause I want peace of mind, going away for 2 weeks of incommunicado, here's what I'll carry:




From top left:

Nooelec Mini 2+ Al: backup, sheer performance, still the best RTL-SDR dongle when aim is hearing a signal.
Nooelec SMArt: backup, for SMA connector, easy for USB port, will work.
rtl-sdr.com v.3: same as SMArt, backup.
SDRPlay RSP1A: secondary, currently the best SDR below $100, better than RSP2 above three digit MHz numbers.
SDRPlay RSP2: primary SDR, wouldn't carry others but I got a choice.
Cables: for SDRPlay and dongles, ferrites are compulsory.
Antenna: SMA connector, telescopic, can overcome shortcomings re length or ground plan,e but SMA is a must.

Merry Christmas and festivities to you all, heartfelt thanks to more than 500,000 readers this year, and to supporting manufacturers, commenters, haters, naysayers, all of you helped me in ways you cannot imagine.

I'll be back sometime in 2018.

Akos out.

Comment on New Version of Digital Speech Decoder DSD+ 1.071 Released by Kd5loh

Use task manager and Chang priority to high

Comment on Displaying Live Weather and Traffic Data from HD Radio (NRSC-5) Signals by cr08

I think for weather maps it may end up being a case where most vehicles with screens large enough for weather display are likely going to have built in nav and will use those maps.

I know with my Ford vehicle with built in nav it has Sirius Travellink which will show weather data and it just overlays on the built in nav maps.

Comment on An RTL-SDR Based Ground Penetrating Radar & Metal Detector by alex

detect from 1 meter depth?
but how? 2.8msps sampling get very low resolution for receiving reflect from 1meter depth..

Вечерний радиоэфир на восьмидесятке из многоэтажного дома на провод…


Вечерний радиоэфир на восьмидесятке из многоэтажного дома на провод который раскинут на балконе :) вполне хорошо слышно, шумов конечно многовато

IgRik к «Новый плагин.»

SDR# x86 rev 1631 подразочаровал, никак не могу отладить звук, какой то хрип идет в NFM. WFM нормально все по дефолту, никаких аудиоплагинов не ставил. В старых версиях звук отличный. Что касаемо нового сканера великолепно. Интерфейс нравится и множество плюшек. Единственно о чем хотелось бы попросить автора написать новую подробную статью по его настройке. Заранее большое спасибо. У вас великолепные плагины. С удовольствием пользуюсь третий год. Большое спасибо за титаническую работу.

Comment on RTL-SDR Tutorial: Setting up and using the SpyServer Remote Streaming Server with an RTL-SDR by Daniel

If anyone fix this please contact me on my twitter @ovsanikdaniel

Comment on Displaying Live Weather and Traffic Data from HD Radio (NRSC-5) Signals by natevw

@cr08 I think you are right. The traffic map appears to be decoded tile-by-tile, but not overlaid on any external data. If you look at the sample image in the post here, you can see it’s not using the same OpenStreetMap.org-style base map as the weather.

This inconsistency does lead to the question, though — what would a vehicle use as its base map when rendering the weather? I suppose if they sent traffic as an overlay any misalignment with (say) the car’s own satnav-rendered maps would be more obvious than with the weather radar, but still…

Здравствуйте! Помогите пожалуйста. Столкнулся с такой проблемой, dvb-t+fm+dab 820t2…

Здравствуйте! Помогите пожалуйста. Столкнулся с такой проблемой, dvb-t+fm+dab 820t2 sdr на windows 10 установился как клавиатура. Драйверпак увидел приёмник, обновил их и всё. Устройство по-прежнему как клавиатура. Как решить эту проблему?
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