Hi, All - in either the terrestrial or satellite space, are there any constant data cast services to listen to?

“Back in the day” I recall pager networks with local weather and sports scores.

I think marine systems still use some data cast services like Weather Fax. I’m not all the interested in un-processed images from satellites.

Are there any continental services worth listening too?

had sdr-trunk installed on a previous pc. built a new one and not zadig does not show bulk in or anything else that looks right. any ideas from anyone?

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https://preview.redd.it/3ezy56zek3xc1.png?width=608&format=png&auto=webp&s=e55731f043dfa2340f98ca5c9fd02f5bcff617e3

Which is better? I’ll primarily be using for scanning for police, fire, and ems. Eventually do satellite imaging and all other cool things these are capable of doing.

Hey everyone,

I'm totally new to the world of radio waves, but I just picked up an SDR-RTL. I'm eager to learn the basics and dive into this fascinating field, but I'm not sure where to begin.

Can anyone recommend some good resources for beginners like me? Whether it's videos, books, or online tutorials, I'm open to anything that will help me get started.

Thanks in advance for your guidance!

https://preview.redd.it/dipws22crzwc1.jpg?width=1675&format=pjpg&auto=webp&s=430f27623a6f1ef3f368cc9851235276abefa383

Using Frequency scanner plugin to scan the airband and I notice in the Channel Analyser at the bottom it always says unknown, a few youtube videos I look at have information there, is their a way to get this? or is it down to what being transmitted?

I live in a big building in a downtown area of a big city, so I'm ready to accept that I just can't get ADS-B from my balcony, but I'd like to ask for some help to determine if it looks like my signals are strong enough or it's a dump1090 issue.

Bought an RTL-SDR kit from RTL-SDR.com's Amazon store. Set up SDR# and dump1090. Set up the included dipole antenna with the 3 m RG174 extension cable. Didn't get any hits.

Got a cheap magnetic base 1090 MHz antenna, same result.

Got a cheap 1090 MHz PCB antenna, same result.

I have ordered a 1090 MHz saw filter to see if that helps, but it's not here yet.

My dump1090 launch .bat is a collection of things I've gone adding to see if they help.

dump1090.exe --interactive --interactive-rows 99 --interactive-ttl 6000 --net --net-ro-size 500 --net-ro-rate 5 --net-buffer 5 --net-beast --mlat --aggressive --debug d
pause

This is what the waterfall looks like. Settings on SDR# are AM, 50 kHz BW, 2.8 MSPS, RTL AGC, Tuner AGC, 0 ppm compensation.

That's way too weak, right? Big peaks momentarily hit -45 dBFS, but most of the time it's a few dB above the noise floor, which is about -52, -53 dBFS.

Thanks for any input!

https://preview.redd.it/hx5daibswxwc1.png?width=1008&format=png&auto=webp&s=8145e7ec26e53930c8760d3a621bc416b49afc48

SDR newb here, but fairly experienced software engineer. I'm starting to look for a soil humidity/temp solution, and most of the sensors rtl_433 supports out of the box are....not great for bigger garden beds (short sensor probes, etc...).

I found these guys for $12.99. Bought one to mess with hoping it would just work, optimistically, which clearly didn't happen.

Anyway, I'm going to start trying to figure out a decoder, but chances are slim seeing as I have no clue what I'm doing, Figured I would check here to see if anyone else had started playing with these, I can't find any info out there.

Here's the most probable cu8 sample from it I could grab if anyone is curious: https://file.io/ZfeD8rfhcxWF . Even a "that sample looks good, work on it" from someone who knows what they're doing would be huge.

pic of the internals:

https://preview.redd.it/xbcoc2tymxwc1.png?width=1178&format=png&auto=webp&s=ebd4851c3463ae827db58f1e521cccce4f0544c3

I have an older dongle that works with sdr# but us only good above 30mhz. I also have a RSP1A that works well below 30 MHz but does not work with sdr#. Now looking for a dongle that is good below 30 MHz and is supported by sdr#.

Can I set up a websdr using just a RTLsdr dongle for personal use? If so, what would the software required be?

I have a genuine rtl-sdr v4 dongle, it works quite well with Sharp Sdr...

I recently bought an inexpensive rtl-sdr v3 which turned out to be a fake, it works well for frequencies around 28 MHz, but when I try to tune it below 28 MHz I don't receive any signals on sharp sdr.

Is there an sdr software program that can run the rtl-sdr v3 dongle and can make the fake dongle operate like the v4 dongle? Using special software processing or settings?

Using DSD plus and VAC with: SDRPlay Connect SDRUNO SDR#

All software plays analog frequency audio out my pc speakers. When I send the audio out via VAC, I see the wave and the decoding of DMR, but no audio output on any frequency. DSD Plus shows the input and output as being correct. What am I missing? Thanks.

There used to be something $200 called the XTRX, I have looked everywhere on the internet, and it doesn't exist anymore. The LimeSDR XTRX looks similar, but is $800! If I'm paying $800, I want something with at least 200 MHz of bandwidth!

Does anyone know of anything that has these capabilities?

Hello Everyone,

Because of a lot of reasons, my RTLSDR hobby has been neglected for over 10 years and I'm looking to get back into it but are facing some issues.

I used to have a cheap mini RTL2832U receiver hooked up to my discone antenna and was able to receive a lot of HAM communication, large area ADS-B and great NOAA reception. This receiver got damaged by water and I never replaced it.

About 6 years go I purchased a new dongle which I never got around to setting up. A week ago I hooked it up and started using it, but I am facing a lot of issues.

I almost got no HAM reception, very limited ADSB ,the noaa reception is terrible and i got a lot of noise/interference. I dismantled my discone, cleaned all connections and hooked it back up with no improvement. A new cable is on its way but I am thinking the dongle is just trash.

The dongle I'm currently using is a newgen RTL2832U usb receiver, I have no idea where I got it from, but as far as I can see it's a cheap AliExpress dongle. I am suspecting this is the culprit. Or does anyone else have suggestions on what the cause of my issues could be? And if you also think it's the receiver what's the best affordable USB RTL-SDR receiver atm?

TLDR: Terrible reception, think my receiver is trash, what's the best (affordable) receiver?

Hi everyone, I'm new to receiving satellite signals and I'm having trouble picking up NOAA-19 L-band signals. I've tried capturing it a couple of times, but I'm not getting any signal. I'm unsure if it's an issue with my SDR# settings or the antenna's compatibility.

Here's what I've done so far:

Antenna: I'm using the L-band antenna from RTLSDR. Satellite Tracking: I point the antenna towards NOAA-19 using the Stellarium app. SDR# Settings: Frequency: 1698.000 MHz Mode: WFM Bandwidth: 40 kHz Tuner AGC: Enabled Correct IQ: Enabled Other settings: Default. Has anyone else encountered this issue? Any advice on what settings to adjust or if the antenna might not be suitable for L-band NOAA-19 reception?

Hello, I bought an RTL SDR v4 a while ago, and I've been using the antenna and coaxial cable that came with it.

I would like to know if I can change something to improve VHF reception. I have the antenna at 6 meters, and I have good reception for VHF, but I would like to expand it further. Any recommendations? Should I change the antenna, coaxial cable, or increase the height? I'm new to this.

I'm looking at getting a low noise amplifier to connect to my RTL-SDR Blog V3, but as I'm fairly new to the hobby I'm unsure exactly what to look for. The frequency range I want to use it on is 119-500 MHz. I'm currently using a home made yagi antenna tuned to 130 MHz. I've also got a few other home made antennas tuned to around 440 MHz.

The two LNAs I'm looking at are the Nooelec LaNA Barebones Wideband Ultra Low-Noise Amplifier (LNA) Module. 20MHz-4GHz, and the LiebeWH RF Amplifier LNA 50-4000mhz SPF5189Z NF Signal Receiver RF Wideband Amplifier.

The Nooelec one is £29.41. The LiebeWH one is £6.70. As it's my first foray into LNAs I'm wondering if it's worth getting the cheap as chips one to give it a go, or am I better off getting the Nooelec one that's a more trusted brand? Money's tight at the moment so I'd rather not spend 4x more on something that might do an almost identical job to the cheap one.

I'm not overly familiar with what all the specs mean, but here's what I've got from the data sheets. I got the data for the LiebeWH from the SPF5189Z RF amplifier data sheet:

Range:
Nooelec: 20-4000 MHz
LiebeWH: 50-4000 MHz

Noise Figure:
Nooelec: 0.9 dB at 1000 MHz
LiebeWH: 0.6 dB at 900 MHz

Gain:
Nooelec: 20 dB at 1000 MHz
LiebeWH: 18.7 dB at 900 MHz

Does anyone have a recommendation about which one to get, or a different one entirely? Is there a real world difference between the two above from the perspective of someone who's new to this?

Long story short I’m currently working in a community that changed all of their water meters, and installed new ones that transmit some data in 900mhz spectrum. The company that sells them offer their hardware for 100k a year but I created one that could do the same for a fraction. They are a small community son paying that much just for billing would be prohibitive. So is it illegal to listen and decode the binaries of those water meters to sell that data to the community?

EDIT: All of this is in private property and with private meters to control consumption into it, municipality doesn’t have anything to do with it.

I love the concept of that app, but it doesn't seem to work to process the tuned frequency and the data riding on it?

Radio interests are simple - Atomic time broadcast, ACARS/ADSB, Trains, etc.

End of Train demod doesn't work either and took a picnic near a rail yard which was full of EoT's and I got nothing decoded but there were lots of blips on the waterfall.

The reason why I am confused a bit on it is that I can hook the SDR to my Android phone, load up the ADS-B app and have planes registered in seconds

Whereas SDRangel won't show any flight data even when 1090Mhz has active transmissions...

Any tips to verify the radio data is being passed correctly to the plugins or is there some other magic modulating module that's needed to make fun things happen?

Just followed the guide on the tetra-kit repository until I hit a dead-end. I want to know what might be the reason why no information from my RTL-SDR is being transmitted to any of the tetra-kit and tetra-kit-player instances. Here's a clip showing the setup. Does anyone know?

Sincerely,

Me

Hey I was wondering what that this weird interference is when I try to listen to that specific frequency for listening to Shannon Oceanic & is there a way to remove it, lower the interference down and identify what it is? I have an RTL-SDR Blog V4 and running the latest version of SDR# & live in the North East of England.

https://reddit.com/link/1cc8x6x/video/4xgy76hemhwc1/player

Airspy SDR# v1.0.0.1919

Nooelec RTL V5 RTL2832U clone

I sometimes see a strong signal like this

https://preview.redd.it/hz120ou2vgwc1.png?width=1143&format=png&auto=webp&s=1b9b0afc6da05bb3f3c31c277e68a0560d976e09

but when I click on it to get it in the center, the signal vanishes. It shows again if I tune away from it's frequency.

https://preview.redd.it/zs2m9vf6vgwc1.png?width=1148&format=png&auto=webp&s=ea93967c2a50d27397537c68cbf15ed4b11c4f55

why is that?

what am I doing wrong?

Hi All, I'm very new to RTL-SDR but originally come from a background of using RF Explorers, I'm an RF tech deploying and coordinating radio microphones.

I'm looking to get a continuous CSV export (1 frequency scan a minute of variable scan range and resolution) where software can log files with custom names. Does anyone have any experience/existing software/scripts for this? I'll be using Windows 10 NUC PCs.

Don't have the greatest scripting background but happy to give anything a go if there's already a solution.

Any good apps the work out the box on steamdeck? I installed sdr angel but dosent seem to even find fm stations, while on my mac it works

Thanks in advance

I'm thinking I'd like to build a SDR "always on" server (likely feeding it to broadcastify) and leave it running somewhere in my house.

However I'm also a ham who jumps into a few nets during the week.

I think even across the other side of my house upstairs my HT screws with the SDR. Is there a good way to protect an SDR in this instance? (Especially when I'll likely only be 5MHz off the SDR Receiving frequency).

The other idea I had was to buy a baofeng since I've had first hand experience using 2 of them on a repeater in the same house without blowing each other out, but while the radio itself is only $15~20, an audio card to my RPi + charging solution would be more cumbersome

Anyone doing foreign language translation? I've thought of loading a translation app on my phone, holding it up to the speakers, and seeing how that works. I'd love to know if you're doing something better. I found two posts about this, both a bit old. https://www.sdrplay.com/automatic-language-voice-translation-with-sdruno/. Ihttps://www.reddit.com/r/RTLSDR/comments/ec217u/foreign_language_translation_live_with_rtlsdr_vr/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button [edit as hit save too soon, added second link]