Sleuth RF with the Squeakie (audible RF field strength meter)
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- Опубліковано 19 лип 2021
- Super simple sensitive RF indicator. Cheap to build with available parts. Earlier video referred to is here: • Audible RF sniffer usi...
Described in Amateur Radio magazine No 5 November 2021.
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That's really useful detecting stray rf in your radio room. Excellent stuff Peter
Another great video! Thanks for posting. Will try during lockdown. Hope you stay safe.
Thanks Peter. I built one from things I already had. Works nicely.
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You could use it to trackbdown sources of local QRM. Useful.
This is awesome
And it's more practical than an Atari Punk Console :)
cool project.
I put the sound out on a fm transmitter so i can hear it on a fm radio while i tune my hf antenna in de garden.....lol
Tks. Es never thought of a strip of plumbers tape for a key. All ways hunted a broken saw blade. Also I could spare my second pixie2 for other duty's tks.
just build my, thanks !
Okay Peter, another one added to the projects list...
This is so many inventions in one.
Cellphone transmission detector
Rf leak
rf tx whoopie cushion
r/c whoopie cushion
Theramin
(make 3 of them, set in triangle, and do triangulation formed harmonizing. Most are tuning dial, with vibrato proportion control, too common.
Do not forget a few layers of guitar pedal.
Also, sell them as Radiation Detectors, with the radioactivity symbol right on it, because that seems ok to do, but never mention Mr. Geiger.
Hook it up to different resonant antennas, hf loops to radar detector horns, to favor freq ranges.
And, once it can get the AM band, it can be a virtual random ghost detector.
Do you have any idea of its detection bandwidth? Will it work on the 13 or 23cm bands? Is adding a preamp a bad idea?
Great video, 73s de VK6BIL
No idea re the microwave bands. A better diode may be needed. A preamp would increase sensitivity further but unless it had a tuned circuit it could be set off by strong broadcast stations.
very beautiful! HF tools, maybe in combination with an LC circuit?
(or tunable to frequency with a tuning capacitor?)
(or with interchangeable coils?)... as dip meter???
Healthy and Friendly Greetings from the Netherlands!
Rob
Are you teling us you want a theremin with a dial?
Ver cool!!! You would think someone would mass produce these things.
Nice build. Do you have any dead bug build videos? I would like to know more on how to build in this fashion. Thanks.
Start with the IC, top glued to the board. Then solder the other bits between the leads. Good idea to design on paper first.
@@vk3ye Thank you for interesting videos.
Hi Peter , I am from India- watch your many videos. In your videos you have used a metal foil on PCB is that foil is made of aluminium foil or tin foil ? We here, in India can find aluminium foil very easily but to solder it ,is very difficult can you suggest any suggestions for it? It is so important to use it as ground plane for RF projects .
I normally solder onto unetched copper PC boards. I have not used foil for a long time but it's been adhesive copper foil when I have.
Ok thanks for replying.
Hi I was wondering if there is an actual list of components I need to purchase, I’m pretty new to all this and haven’t perfected reading diagrams yet 😊 but would love to build this any help very much appreciated
No list but all values are listed on the diagram. A list can be made from that. There's only a few unique symbols used.
Just about to build. Would this be more sensitive with a Germanium diode? Thanks!
I haven't tried one. But it's very sensitive as is. Try it and see and let us know here.
@@vk3ye Built and worked first time! Substituting a germanium in place of the silicon diode results in the pot becoming more sensitive to the touch but the actual Squeakie is LESS sensitive to RF. Go figure! Thanks for this simple, yet effective project. I know it'll prove useful. Martin - G4EFE
What is the frequency range?
Low HF to UHF at least. Maybe more.
@@vk3ye That should cover most needs.
Could you use it to find power lines in walls?
I wouldn't trust it for that.
@@vk3ye I see. And how about using the squeakie to find noisy electrical appliances in the house? A bit like ua-cam.com/video/XBeWBglJZaY/v-deo.html uses his Yaesu817 to find noisy power supplies?
@@PaulaBean It worked for the light I tried. Might work for noisy switch mode supplies too.
Thanks Peter.
Another excellent Video.
Your videos are really helping to broaden my knowledge.
73's Owen
It looks like you soldered to the tin foil? Is that correct? Thanks for the video!
Yes, soldered to the copper on the board. Sometimes called 'dead bug construction'.
Yalancı
Going to need to build myself one so I can go hunt around for QRM in my neighbourhood, thanks kindly for this!
de VK3FTIM
I was thinking the same...as a QRM detector..... now to find a box