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Simon Phillips
เข้าร่วมเมื่อ 1 มี.ค. 2006
Grimeton SAQ 17.2kHz Christmas Transmission 24.12.2024
The 100 year old water cooled 17.2kHz Grimeton SAQ transmission as received live in Munich, Germany using modern small equipment. Here are links to the relevant info:
Grimeton SAQ live stream:
th-cam.com/users/live0CQZmW_vE00?si=mgPR7sFTY1Jr6cxj
A nice article about the PA0RDT MiniWhip. Buy these direct from the inventor or build your own for best quality and results:
www.merseyradar.co.uk/uncategorized/hf-receiving-antenna-pa0rdt-mini-whip/
The Behringer U-Phoria UMC202HD microphone preamplifier:
www.behringer.com/product.html?modelCode=0805-AAR
SDR++ software:
github.com/AlexandreRouma/SDRPlusPlus/releases
Linux Mint Cinnamon Edition:
www.linuxmint.com/download.php
Grimeton SAQ live stream:
th-cam.com/users/live0CQZmW_vE00?si=mgPR7sFTY1Jr6cxj
A nice article about the PA0RDT MiniWhip. Buy these direct from the inventor or build your own for best quality and results:
www.merseyradar.co.uk/uncategorized/hf-receiving-antenna-pa0rdt-mini-whip/
The Behringer U-Phoria UMC202HD microphone preamplifier:
www.behringer.com/product.html?modelCode=0805-AAR
SDR++ software:
github.com/AlexandreRouma/SDRPlusPlus/releases
Linux Mint Cinnamon Edition:
www.linuxmint.com/download.php
มุมมอง: 315
วีดีโอ
VLF Sweeper - creepy unidentified
มุมมอง 82วันที่ผ่านมา
A slow carrier sweeping downwards in frequency and settling at 22kHz and 46kHz or so. Anyone know what this could be ? Please comment below.
Receiving 17kHz Radio Signal from SAQ in Sweden using Modest Equipment
มุมมอง 1.9K14 วันที่ผ่านมา
I used a PA0RDT miniwhip feeding an SDRPlay RSPDx receiver and SDRConsole software. Next time I might try using a tuned loop antenna and Behringer U-Phoria UMC202HD 192kHz ADC with XLR microphone inputs. Thanks to the Grimeton SAQ TH-cam channel for the short clip I showed from: th-cam.com/users/liveVwINhKcSF5o?si=BIZkjkQ9qWxFtQk2
Receiving Signals from the ISS with Modest Equipment
มุมมอง 51414 วันที่ผ่านมา
Live map of ISS position: www.astroviewer.net/iss/en/ Calendar showing passes over your location: spotthestation.nasa.gov/home.cfm
Meshtastic Remote Controlled Phone
มุมมอง 481หลายเดือนก่อน
I wanted to access my Meshtastic nodes with the functionality provided by a mobile phone linked via Bluetooth. A number of solutions are briefly considered. Perhaps in the future If I can find one that works I will try an Android Emulator running on a server. The instructions for setting up the mobile phone are here: th-cam.com/video/2y35SPOaNWk/w-d-xo.html I may have forgotten in the video to ...
Facebook wants my Money - starts charging users
มุมมอง 126หลายเดือนก่อน
Surprise - Facebook is demanding money if you don't want your info to be used for advertising (and sold on to goodness knows where). I don't know when they started demanding this as I don't log in to Facebook very often...at all...
Meshtastic Stratospheric Balloon over Poland
มุมมอง 808หลายเดือนก่อน
A group of people in Poland called HAST - High Altitude Stratospheric Team launched a balloon on 25.10.2024 carrying Meshtastic nodes on 868MHz and 433MHz ISM bands. I set up some equipment on a tall building in Munich, Germany to see if I could receive any signal from these nodes. Here is a link to a video of a past HAST balloon launch. th-cam.com/video/J9WXRSKnXVE/w-d-xo.html
Common Mode Choke Testing Part 2
มุมมอง 405หลายเดือนก่อน
Due to popular demand, I reveal what is inside my common mode choke testing box. Thanks go to the original publisher of this circuit: th-cam.com/video/3ReRu7Yt4Ao/w-d-xo.html
Accessing Infrared IR Camera on Logitech Brio Webcam
มุมมอง 162หลายเดือนก่อน
For the people who asked me how I did this - here are some more details on how you can do this yourself.
8 metre 40MHz band experimental FT8 transmissions
มุมมอง 1602 หลายเดือนก่อน
The 8 metre 40MHz band is available on application for a licence for experimentation in some countries. Here I take a quick look to monitor FT8 activity there using a PA0RDT active miniwhip antenna feeding into an RTLSDR V5 usb dongle on Openwebrx running on Ubuntu 22.04 on a Proxmox server.
Common Mode Choke Testing
มุมมอง 4484 หลายเดือนก่อน
Common mode signals propagating on transmission lines such as coaxial cable often cause problems for both transmit and receive. Here I show a simple way of testing the performnce of such chokes (also referred to as UNUNs). The circuit I built is thanks to this excellent channel: th-cam.com/video/3ReRu7Yt4Ao/w-d-xo.html
MediumFast Meshtastic
มุมมอง 4225 หลายเดือนก่อน
Andy Kirby in the UK has suggested using MediumFast Modem Preset in the Lora settings in order to reduce congestion in densely used areas. There is a link budget penalty to pay for this but it may be outweighed by the advantage gained by using shorter bursts. My video shows these bursts using an SDR receiver. Andys video can be found here: th-cam.com/video/PWyhSEAb89c/w-d-xo.htmlsi=eUsl1n-uePGz...
Nano VNA and Tiny SA as Signal Generators for testing Meshtastic frequency equipment
มุมมอง 8125 หลายเดือนก่อน
I tested the signal generator portion of: NanoVNA-F v2 vector network analyser Tiny SA spectrum analyser Tiny SA Ultra spectrum analyser This is not the primary designed purpose of these devices but they can be used to generate useful signals for testing equipment like antennas and receivers. None of my devices have been accurately calibrated against standards since they were purchased.
SDR Server Receiver on Supermicro Proxmox Host
มุมมอง 3035 หลายเดือนก่อน
I put 2 Nooelec SDR dongles in my Proxmox server to allow me to stream radio receivers to webbrowsers using openwebrx . Also running on my server I have the TC2-BBS software from The Comms Channel and the Meshtastic_sdr realtime packet (chirp) monitor to keep an eye on what is going on. Meshtastic_sdr is show here on this excellent channel: th-cam.com/video/muVsrqnJZ8I/w-d-xo.htmlsi=1pAwby1OD_0...
BBS for Meshtastic - Easy Install on Ubuntu 22.04
มุมมอง 2.1K5 หลายเดือนก่อน
BBS for Meshtastic - Easy Install on Ubuntu 22.04
Meshtastic Waveshare LoRa HAT setup on Raspberry Pi 4
มุมมอง 4.2K6 หลายเดือนก่อน
Meshtastic Waveshare LoRa HAT setup on Raspberry Pi 4
Meshtastic on Raspberry Pi with Waveshare Lora Hat
มุมมอง 5K6 หลายเดือนก่อน
Meshtastic on Raspberry Pi with Waveshare Lora Hat
SDR Console Software for SDRPlay RSPDX Receiver Part 2 including WSJTX
มุมมอง 5698 หลายเดือนก่อน
SDR Console Software for SDRPlay RSPDX Receiver Part 2 including WSJTX
Lilygo T-Echo Meshtastic Antenna Test
มุมมอง 1.3K9 หลายเดือนก่อน
Lilygo T-Echo Meshtastic Antenna Test
SDR Console Software for SDRPlay RSPDX Receiver Part 1
มุมมอง 1.8K9 หลายเดือนก่อน
SDR Console Software for SDRPlay RSPDX Receiver Part 1
Discone Broadband Antenna for Meshtastic and General Listening Part 1
มุมมอง 2.9K9 หลายเดือนก่อน
Discone Broadband Antenna for Meshtastic and General Listening Part 1
Meshtastic solar charging - quick first look
มุมมอง 1.6K9 หลายเดือนก่อน
Meshtastic solar charging - quick first look
Meshtastic Wireless Charger ELF Transmitter
มุมมอง 5069 หลายเดือนก่อน
Meshtastic Wireless Charger ELF Transmitter
ISM Band Signal close to Meshtastic Frequency - can you identify it ?
มุมมอง 6359 หลายเดือนก่อน
ISM Band Signal close to Meshtastic Frequency - can you identify it ?
Broadband Antenna - is it a Fake ? Part 3
มุมมอง 4909 หลายเดือนก่อน
Broadband Antenna - is it a Fake ? Part 3
I missed the transmission. I was hoping to catch it with a Wellbrook loop and an RSP-dx from the Midlands of the UK but totally slipped my mind to set my alarm - It is Christmas and I am on holiday :) I am hoping to visit Grimeton at some stage with a friend and colleague at some stage. Reading other comments I may need to rethink the receive setup for VLF - I need to have a look at the Airspy HF+.... The Behringer performed incredibly well! If you are looking at antennae, have a look at the Wellgood loop antenna - I bought one as a backup for if/when my Wellbrook dies as the company and founder are sadly no more. It is based on the Wellbrook loop amplifier but I've not had a reason to try it in anger yet. The Wellbrook pretty much prevented me throwing to towel in due to HF noise - it is a godsend. I moved from Windows over 15 years ago to Ubuntu firstly and then Mint about 10 years ago. All of my systems run Linux and I have a Mac for Office applications. Life is sweeter and easier without the aggravation of Windows. When my partner had her last laptop she asked me to put Mint on it and has been running it since (7 years or so?) and I don't get hassled with support issues - it just works. I do run Windows in a VM (best place for it) on my main shack/office machine to run SDR Console and a few other apps but everything else radio related is native Linux. Just found your channel and subscribed. 73 de M0SNR
Thank you for your interesting comments, Richard. I also have a Wellbrook loop which is great except that it takes up more space and doesn't work quite so well at 17kHz as the PA0RDT MiniWhip. There is an "improved" design called the Wellgood Loop and I thought that if ever my Wellbrook preamp broke then I would replace it with a Wellgood version. Yes - the loop antennas certainly have better noise immunity than electric field antennas. I tried installing SDR-Console under Wine on Ubuntu without much success. Maybe I will try it again using Bottles. I use a standalone Proxmox server as my VM host which works extemely well, except that the RTLSDR USB connection does not pass through fully to a VM, otherwise I would be running windows as you do. SDRPlay technical support was unable to help with the problem. Which VM hypervisor do you use which allows access to the RSPDX ? I am also trying out SDRConnect from SDRPlay which is getting better and runs nicely with the RSPDX on Linux. 73 de G4EYR
@@fotografm Hi Simon, I'm using Oracle VM Virtualbox and seems to work pretty well. I did think about using WIne initially but there seemed to be many caveats and I thought I would get better compatibility going down the VM route. All of the USB devices that I want to pass through (RSPdx, Elad TM2 and the IC-9700 work well and are seen by SDR Console and SDRUno. I would like to move my OS to a newer version of Mint to run SDRConnect but as the machine is stable I'm loathed to make large changes to it. I have a replacement SSD drive to do it but it's like going to the dentist - only go when necessary :)
@@rjy8960 Hi Richard. I will give Oracle VM Virtualbox a try. I ran it on windows a while back and remember discovering I needed to install the correct extension pack to make things work so will try it on Mint. I know what you mean about upgrading - "If it ain't broke, don't fix it" ;-) Are you running windows 10 or 11 in your virtual machine ?
@@rjy8960 I am setting up some machines with EndeavourOS Arch based Linux and it seems to run really nicely. Not sure about being able to install Virtual Boc there though...
@@fotografm Windows 10 - I'm going to stay with 10 for as long as I can although you can access the TPM with Oracle VM AFAIK although I don't want any more advertising, telemetry and scumware that is / may be included in 11. I only use a Windows VM on this machine because I need base OS support and not because I want it. If I have to move then I will but at the moment absolutely no plans to upgrade. I've limited the resources available to the VM to what it needs to run the programmes I need and no more as I see it only as a necessity rather than a choice :)
did your gps work when you did this? still havent gotten it to work.
I didn't try the GPS snce I don't need it. Also, the GPS antenna would not be able to receive any satellites indoors. You would need to place the antenna in a clear outdoor location and wait up to 10 minutes for the alamanac to download and synchronise. Also you need a backup battery on the board to provide backup storage for the alamanac when the device is powered down.
@@fotografm is the standby switch supposed to be on or off? Thanks, been trying to figure it out for the spec5 nomad.
Merry Christmas and a Happy New Year to you, Simon.
Thanks, Mike, and to you too !
Good day Simon, I had high hopes this morning, being all ready to go with my Sailor R-1120 receiver, coupled to my Wellbrook 1530+ antenna.... I heard nothing on 17.2 kHz unfortunately. Quickly changed over to my SDRplay-RSPdx. And strangely enough, I did see and hear a faint signal on 18 kHz, same as visible on your recording in your video. But not anything on 17.2. Gggrrrr ;-) So, this is something to study more, to make this work. In the past, I do remember I was successful with my Skanti R-5001, which is currently " on the side" . It's a heavy, big beat... Interesting though, using either a soundcard or the mentioned mic- pre amp. So much to explore still. To be continued. 73 from the Netherlands, de PC7H
Hello Roy. Thank you for your interesting comment. It was interesting to see those receivers on your QRZ page as they are unknown to me. The sound card is a simple idea. Even the one built in to most PC's can function quite well, often with higher noise floor though. Good luck with your experiements ! 73 de G4EYR
Wow, listening down there at the bottom end is a completely different business. I honestly have never thought to use an audio interface as a receiver, that's a whole different lane of lateral thinking. Well done and thanks for sharing! A merry Christmas! 73, Jan M7HNK
@fotografm Hello Jan. Thank you for your interesting comment. The sound card is a simple idea which I got from a youtue video about listening to the Schumann resonance around 6 or7Hz ! Even the soundcard built in to most PC's can function quite well, often with higher noise floor though. Merry Christmas to you too ! 73 de G4EYR
Merry Christmas, Transmitted with Love
I'm attempting to do this same thing with an original Raspberry Pi Zero.
6:25 So far I haven't managed to get anything except "Loading..." You managed to get it working! Dammit! 👏👏
Nice to see you on another video Simon. I never thought that would be possible.
Nice try. Hope you get it sorted before Christmas day. I have previously listened on my G4CLF based tcvr but it wasn't too good at such a low frequency. 60 kHz Anthorn was a good signal. I did make a low frequency converter with an xtal and Plessey SL6440 but I've no idea where it got to. G4GHB.
Thanks Bill. Let's see how far I get with the construction !
Now i wonder what bandwidth the fcc is monitoring 😮 I also wonder how many watts they used to transmitt that 17khz and what that antenna looks like.
DC to daylight of course 🙂 Transmitter is 200kW to a wire antenna using hundreds of metres of wire !
@@fotografm WWWWOWWWW!!!
It is possible to receive the VLF transmission with a coil of wire plugged into the sound card of a computer and spectrum analysing software which can be downloaded 9soe for free) from the web. I used a 40 turn coil of about 50cm diameter. The shop at Grimeton sell a small hobby receiver using a 555 chip as a demodulator and a small coil antenna. That works to at least 1500 km from the transmitter.
Interesting experiment. I just bought a big plastic box to wind 400 turns of wire around. You need some parallel capacitors to tune it to the right frequency. I will try it first without a preamp and then with a preamp. Let me know how yours goes and I will publish my results when I have some ! Your 40 turns sounds like it might be too few though...
@@fotografm I didn't even tune it so that I could see the spectrum from about 10 kHz up to the limits of the soundcard AtoD converter, about 24 kHz (half the 48 kHz sampling rate) A faster soundcard (e.g. 96 kHz) would cover a wider spectrum.
@@karhukivi I see. Yes - without tuning it would be broadband but the signal levels may be low.
@@fotografm There are quite a few radio hams interested in VLF reception and have websites and software, e.g. Spectrum lab with which to view these signals. Also a few videos on YT about it. The signal strength is good due to the high power of the transmitters but SAQ is not run at the full power, nevertheless it ca be detected with simple receiving equipment and as it is in AM, the Morse can be heard. The other Txs went over to MSK modulation some years ago.
Have you tried the beta of SDRConnect from SDRPlay? I believe there is a Mac and Linux version, since you're leaving Windows.
Yes I tied that on Ubuntu and it's ok. It is not quite as polished as sdrconsole though but at least it works.
New Jersey Drones
Yeah !!!
17k isn't that near audible?
Yes, if your ears could hear radio waves.
Indeed it is. Luckily it is an electromagnetic signal not a sound one otherwise it would drive dogs and bats crazy !
@fotografm What is the signal strength and I'm still confused about the antennas used...that's such a low frequency I'm amazed. I've always thought that it needed to be above a certain Ghz, now my mind has to think that even at extremely low frequency there could be transmission. I was just researching the quarter wave length of 60hz and couldn't believe the distance. Things like Schumman resonance are starting to make more sense. Edit, ok, looked into the antenna and I understand now 👍
Or teenagers crazy. They can hear switched mode power supplies. Physics teachers can exploit this in class, I believe 😅.
@@subdynoman Yep. Even such low frequencies can propagate as EM waves. The PA0RDT miniwhip antenna is amazing. It's only 4cm long which is a miniscule fraction of the wavelength but it really works. It is actually an electrostatic probe more than a radio antenna. The Schumann signals around 6Hz can also propagate around the Earth trapped in a waveguide between the ground and the ionosphere. I will take a listen there but you need a really good filter to filter out the huge signal at 50/60Hz from the mains power supply.
I saw the video of all the astounding preliminaries to put that thing on the air. Lots more than I ever imagined.
Indeed. It reminded me of starting up a steam engine or an old power station !
Is there a link to that video I'd like to see it 👍
@@subdynoman I linked it above in my description 🙂
I suspect that I could receive a signal from every piece of Chinese rubbish electronics, internet line, computer, LED light, power line, and charger within 5 miles on 17.2 KHz at my location. The desired signal maybe 40 dB below the noise level.
I know that problem well. Sometimes I turn everything off and just run on battery power. It helps but doesn't suppress noise from my nighbours of course. Also my solar charge controllers are really noisy !
Greetings, can the raspberry pi that you connect with an ethernet cable work as a substitute for wifi sir?
I believe that was a conversation between the ISS and some guides in southern England.
Thanks for the info.
🛰🛰
Very interesting!
Thank you !
I'm a Brit living in Hungary and I've received it before using the same mini-whip also bought directly from PA0RDT. The noise/QRM is a bit high where I live, so on the centenary transmission we listened on WebSDR. For the 24th of December transmission I'm going to build a wire loop on a bucket (or if I don't get the supplies in time, then a coil around a ferrite rod) and use an up-converter with my IC-705 and go to a very RF quiet area (up a mountain!). My daughter (who is 10) loves it as she has been having weekly morse lesson for the last year and recently passed her amateur radio licence and obtained her morse certificate.
Wow - that sounds like a great plan and I am so happy for your daughter being interested in CW and radio ! Let's see how my loop antenna with ferrite rod backup plan works out :-)
how do you change the configuration for vb cable?
Forget antenna your audio is horrific.
Sorry about that. have found a better solution.
Thanks a lot for this little tutorial! It did the job for me nicely. Much appreciated!
Great to hear!
seen so many in brighton now !
Hi! I just watched the video, and I want to thank you for taking the time to make it. Your explanation was really helpful, and I truly appreciate you sharing your knowledge. Thanks again for your generosity and for helping me out!
Thank you for your comment !
i have an antenna that closely resembles your winner- and it is much better than the small stubs that comes with the v3 Heltec. So far also better than my home made 4 elm Colinear -
What is the scale of the Nsno VNA ? dont see the values on the right sede of the display
It is 1 swr unit per vertical division. The bottom line is swr 1.0. The line one centimetre up is 2.0 etc.
Hi Jürgen. Glad you found it useful. I didn't actually try the GPS module yet as I don't really need it.
@ Simon. Thank you for your great tutorial! Iv set up my Raspi and lora hat. Messaging works fine, but GPS doesnt. Debug log puts out different warnings for GPS: DEBUG | ??:??:?? 0 [GPS] Probing for GPS at 9600 WARN | ??:??:?? 2 [GPS] Failed to find UBlox & MTK GNSS Module using baudrate 9600 It tries different baud rates but it always failed to find the GPS module. Do you have any suggestions? best regards from Austria Jürgen
Hello can you help me? I follow your steps but when i create the file "/etc/modprob.d/snd_hda_intel.con" and i try to save (ctrl+o) ask me this: Name of file were to write: /etc/modprob.d/snd_hda_intel.con and the options are: M-D dos format, M-M mac format, M-A anex, M-P prep, etc. What i do? Thank you
I tried it for windows but it doesn't work. is there any way we can make this work for windows 11 PC.
Not that I know of. Microsoft doesn't want users to access the hardware in their computers ;-) Give Linux a try - you might thank yourself. Or ask the Windows AI thingy how to do it and to explain the reasons why it is not allowed...
Good video. Thank you sir. Cheers from Denver USA
Glad you found it interesting !
How do you access this? I am trying to access it on my Minisforum V3 but no luck. It appears as a usb webcam but I can’t access it from anywhere, it shows up in device manager but that’s it
What OS are you using ?
@ windows 11 pro
@@Jack_the_pngtuber windows doesn't allow users to read data from the IR camera. You need to use Linux !
Thanks Simon for taking the time to share this, you helped me out
Glad it helped !
hi simon just bought this , so happy with what it does for the money, thank you for the informative youtube video
Great to hear that !
@@fotografm now in the process of building long wire and loop antenna
I'm experimenting with the Raspberry Pi 5 and this hat now. It's not connecting. The GPIO may be different though. We'll see how this goes... Thanks for the Pi 4 video!
Please keep us updated once you have worked it out !
@ It works! I’m all setup on Pi 5. Most issues I had were just me being a meshtastic newb.
How do you update the FW to a later version? Thanks
Did you ever look into running android on a raspberry pi with a sim adapter and remote in with guacamole (or something)? I've looked into this a lot, but have yet to build it but also not sure whats the best way to make this work. This could be a solution, thanks
I tried Android on Waydroid, Chrome OS Flex, FydeOS and others but always came up against "not play protect verified" so could not install apps like Meshtastic. Did anyone else have better success ?
Hi Simon. Thank you, this is an interesting solution. I have my mesh node in WiFi mode, and that enables the little built-in web server. It does not seem to expose the same node configuration functionality of the Android app, but it has a very useful interface. I have set my DHCP server to serve it a static IP address, so I can always get to it via my home-brew VPN tunnels. Cheers and 73, Jan M7HNK
Hi Jan, indeed this is an even simple roption, but as you said, some of the functionality is missing. Hopefully somebody will write a fully functional control software which can connect to a node by any one of a number of means. Let's see what happens 🙂
I have this running on a RPi3 with Ubuntu 24.04.1 LTS server image. I'm familiar with Linux so it wasn't too tough. I realized I wasn't getting the VM bash prompt because I had to run the 'source' command before running the command to invoke the VM. At least I think that's what it was. Thanks for the tutorial and happy meshtastic to you all.
Glad to hear you got it working !
Very nice video. Well done.
Thank you 🙂
lol "you pay" and than you see mostly adverts generated by users. I use fb quite often for closed comunity but this is so expensive its really funny. some who pays this must be really crazy :D
My view is that they should be paying us for the amount of data that they steal !
try free windows app MeshSense, it has no nod settings but it snice for monitoring
Your voice is beautiful
Thank you 🙂
Erster. Immer ein guter Kommentar. 😅
der Beste !
Excellent video. Got me up and running. Can't wait to see what else this can do.
Glad you enjoyed it!
Thanking you most kindly from English England
God bless you and all who sail in her 🙂
Blimy
Indeed !