RTLSDR Mazda CX 5 TPMS
8:03
Жыл бұрын
Пікірлер
@Smona
@Smona 6 күн бұрын
Sometimes, if you listen just right, you can hear a dead angel sing
@Kepler_2258
@Kepler_2258 Ай бұрын
americium emits alpha And Gamma not just Alpha, you can still detect the Gamma coming off of it
@RobertResearchRadios
@RobertResearchRadios 29 күн бұрын
Yep. I have another video on that. I didn't know that at the time for this one.
@Indonesia01ian
@Indonesia01ian Ай бұрын
Hi, I wanna build my antenna Is it that hard to make a good antenna for long range? (+10km) using 5.8G band I didnt have any back ground in Electrical/Signal. Is there any guide to make a helical antenna? For me, the factory made ORT antenna 12turn is so expensive ($50)
@RobertResearchRadios
@RobertResearchRadios 26 күн бұрын
If you have a 3d printer. Helical antennas are very easy to make. If not, it's a little bit harder but RC Model Reviews had a video from a number of years back before these became COTS items. kzbin.info/www/bejne/nISafn6PoLCBY6M
@ninjalemon_Squash
@ninjalemon_Squash 2 ай бұрын
IB be Crazy
@RobertResearchRadios
@RobertResearchRadios 26 күн бұрын
Video Aerial Systems makes some crazy antennas that's for sure.
@orbitingeyes2540
@orbitingeyes2540 3 ай бұрын
Most likely reason for the mismatch and variation in insertion loss is that the coupling probes don't scale as you tune the cavity.
@bradfordcouncilman3136
@bradfordcouncilman3136 3 ай бұрын
FB OM
@CircleBrewery
@CircleBrewery 4 ай бұрын
Send one to me please thank you 😊
@RobertResearchRadios
@RobertResearchRadios 26 күн бұрын
They are for sale on Etsy, Ebay, and other platforms via Maker Chamber. www.etsy.com/listing/1293499404/3-in-1-die-wrench-for-lee-precision
@dr.hinneredv932
@dr.hinneredv932 5 ай бұрын
Thank you.
@HJ5RGG
@HJ5RGG 5 ай бұрын
Thank you HJ5RGG
@Alejandro-nz7mu
@Alejandro-nz7mu 3 ай бұрын
Por favor se podrá la transición en español para poder aprender y copiar sus abilidades y experiencias
@stevenwilliams6258
@stevenwilliams6258 5 ай бұрын
Wow, other than satellite and a few other words I had no idea what was really being said or what was going on! Will need to see other videos and an About page. Looks interesting!
@stevenwilliams6258
@stevenwilliams6258 5 ай бұрын
Great explanation! I'm curious, just not sure where to start. Looks like you have many informative videos. I am retired and worked in digital design first and factory automation before retirement. As a VNA is expensive other than a nano, alternative measurement methods are useful. If I delve into this RF topic as an interest your videos will be helpful. Thanks!
@RobertResearchRadios
@RobertResearchRadios 26 күн бұрын
Glad to hear you find them helpful. The NanoVNA and TinySA are great starter pieces of test gear if you want new stuff.
@soygemmer8555
@soygemmer8555 6 ай бұрын
warm
@armadilllo
@armadilllo 6 ай бұрын
Is there supposed to be an o-ring on that tiny bushing? Transfer sleeve?
@michael.wilspang
@michael.wilspang 6 ай бұрын
What is the name of the manufacturer and p/n of this filter?
@CaptainCandycorn
@CaptainCandycorn 7 ай бұрын
I just used an Scad file to make an antenna and it has them switched, good to make sure.
@bluesteelbass
@bluesteelbass 7 ай бұрын
You can try light projection of the finder scope with a piece of paper for easier pointing, but don't forget to put the cover on the front of the finder scope after. You might be burning ant piles otherwise!
@alexbringhurst8881
@alexbringhurst8881 7 ай бұрын
Thank you for the video and the explanation on how to make the antenna. I'm going to try a pair of them on my HDZero goggles. Incidentally, I noticed the sore on your right thumb joint. It looks just like the kind I would get when I rode dirt bikes. Is that how you got yours?
@alzeNL
@alzeNL 7 ай бұрын
Very interesting, I'm using HRD to control the 9700, i have satpc32 as well, but found HRD easier to use and aesthetically better. I'm just on M2 2m/70cm eggbeater with an amp on 70cm, but I will give this a try when RS-44 visible again.
@matterhaz2980
@matterhaz2980 8 ай бұрын
Why TF would you wear no ppe
@TheOpticalFreak
@TheOpticalFreak 9 ай бұрын
Wow 😮 that is so cool! 😃👍
@robertallen3133
@robertallen3133 9 ай бұрын
Fantastic video
@assaissa
@assaissa 9 ай бұрын
Hello. What is the model of thinkpad? Thanks.
@RobertResearchRadios
@RobertResearchRadios 8 ай бұрын
Type 20HT-S05E00 Thinkpad 11e
@stephenkelly7014
@stephenkelly7014 10 ай бұрын
The watch hands not glowing is not due to a lack of radiation (Radium has a half life of 1600 years) but because it has burned out all the zinc sulfide.
@RogerWilco486
@RogerWilco486 10 ай бұрын
Neat video! I'm practically your neighbor since I'm also in FN20 over in the Boyertown area. I must say I'm shocked at how well those egg beaters are working, especially UHF. I'm new to sat ops and just got a pair of Wimo X-Quads with a G-5500 AZ/EL rotator, and unless RS-44 is practically overhead I'm barely able to copy SSB with 50ft of LMR400 between the antennas and transceiver. VHF downlink is no problem, for example ISS is S9+40. Last night was the first good pass where I actually saw some S-Meter deflection and could clearly hear the other stations. A UHF preamp is on the way but I'm beginning to wonder if it's caused by the fact that everything is temporarily setup on a 2" pole hammered into the back yard for testing, so the antennas are less than 6 feet from the ground. It'll be going up on the house once I've got everything tested and ready.
@RobertResearchRadios
@RobertResearchRadios 10 ай бұрын
I have like 100ft of LMR-400 with no pre-amp for this. RS-44 definitely seems to have good days and bad ones. The transponder power is probably varying based on it's battery charge state for that day. It may also be a good idea to have selectable polarization for your wimo x-quads. If you can get a setup a switched phasing harness to quickly jump between vertical/horizontal and RHCP/LHCP that would give you some additional flexibility during ops. The eggbeaters have served me well, but I think directional antennas and rotators are a better tool in a lot of cases if only to not be taking in environmental noise from other directions. There's a ham around here (FN20ish) i spoke to once who has radomed QFH antennas that weren't too expensive. Those have much better weather resistance than my setup. I've had to go up there and sand off corrosion on wire contacts for the UHF eggbeater antenna a couple of times now.
@RogerWilco486
@RogerWilco486 9 ай бұрын
I received my MiniKits UHF masthead pre-amp kit, and after assembling and installing it, it's made a HUGE improvement. With the gain adjusted to about +25db, I went from only being able to copy when the pass was directly overhead, to starting to copy at <10-degrees and making 5-6 solid SSB QSOs per pass. Considering the AU to USD exchange rate, if you don't mind doing a little SMD work to assemble one, it's a real bargain and highly recommended. @@RobertResearchRadios
@RogerWilco486
@RogerWilco486 8 ай бұрын
As an update, I've got my masthead preamp kit built and installed, and I also discovered my azimuth was off by almost 20 degrees. Since then, RS-44 comes booming in now, and even IO-117 (Greencube) squawks give me S9+ meter deflection. So the X-QUADs turned out to be an outstanding investment, I couldn't be happier with them. Can you work IO-117? I've only recently tried making QSOs over it since the news of it's planned decommission was announced a few days ago, but I've had tons of success with it so far. @@RobertResearchRadios
@RobertResearchRadios
@RobertResearchRadios 8 ай бұрын
I don't have a setup for IO-117. Looking to build a setup capable of that some day even if GREENCUBE does decommission before then, but mostly just running the satnogs station and then working linear birds with voice/CW out of a camera bag on my hip and using an arrow antenna lately. Got 6 or 7 QSOs in one pass as W0NT on FD in 2023 that way.
@barndweller4573
@barndweller4573 10 ай бұрын
That was interesting, I am new so I did not understand what is going on yet. I will watch it a few more times. Thank you for making the video.
@rylanyoung2018
@rylanyoung2018 11 ай бұрын
The smaller screw inside the breech that needs the 1.3 hex bit, do you know where I could buy a replacement? And on an unrelated note do you know how I could remove a small stripped hex screw?
@RobertResearchRadios
@RobertResearchRadios 10 ай бұрын
Haha since it's "unrelated" I suppose I don't have to express condolences, but that's a tough one. I'm not the best one to ask about stripped screws, but I would try torx bits if it's too stripped for hex or see about cutting a flat head shape into it. Worst case you could sacrifice the plastic cover piece by breaking or melting it off the screw and then turn the screw out with a pair of vice grips/pliers. You might try ebay for replacement parts. Best.
@rylanyoung2018
@rylanyoung2018 10 ай бұрын
@@RobertResearchRadios I tried every non destructive trick as well as super glue and then the super glue + baking soda powder combo. Not only did that not work, but I nearly cemented the screw to the inside of the breech. I literally just had to buy some grabber drill bits and bore out some of the screw and then extract it. I also bought the only 4x48 screws that my local hardware store had available. They were flat pan head gun screws about 5 times too long, but the head was about twice as thick as the original breech screw. After cutting it down down and getting it to fit the larger head actually worked better than the original screw since it was taller and essentially replicates the washer mod that prevents pellets from jamming. Also, it's a slotted screw, so it won't strip unless I really mess it up somehow
@TheBigtonee
@TheBigtonee 11 ай бұрын
Pilotnya ke sini tapi alien satelit
@TheBigtonee
@TheBigtonee 11 ай бұрын
Aku sedang kne4i
@MatthewAE4JC
@MatthewAE4JC 11 ай бұрын
Great job!
@MatthewAE4JC
@MatthewAE4JC 11 ай бұрын
Brilliant!
@chasedavis2358
@chasedavis2358 11 ай бұрын
It emits gamma because of the neptunium decay product
@morejelloplease
@morejelloplease 11 ай бұрын
Cool video, i think there would be a company out there that has a little device that you could put on your dash or just turn on while you're driving to check your tire pressure so that you don't have to get out and manually check it with a gauge.
@lordtyrion007
@lordtyrion007 Жыл бұрын
I don't understand much about what you are doing, but it looks pretty cool. Keep it up
@jamespeak8
@jamespeak8 Жыл бұрын
Could you send me some information on where I can purchase 2 of the piccatiny rail s for a1377 and a 1322 Crosman pistols.
@samf5866
@samf5866 9 ай бұрын
There's a few on amazon and on ebay, they both look the same
@neilfoster814
@neilfoster814 Жыл бұрын
For everything that is said, I use a home built V dipole with additional reflectors for NOAA 137Mhz reception, and I get superb results from it.
@Besinnung
@Besinnung Жыл бұрын
Hey, do you use LNA or filters?
@allanpierron2296
@allanpierron2296 Жыл бұрын
I have. Hp 8559b now I can calibration it the same you you did
@Seabass1206
@Seabass1206 Жыл бұрын
how does ur scope stay zeroes i have the exact same mount i printed out of petg and pla and i can’t get it to stay in place
@RobertResearchRadios
@RobertResearchRadios Жыл бұрын
I epoxy'd mine on there after I was completely happy with it.
@lfkvang
@lfkvang Жыл бұрын
mine keep sliding forward.
@RobertResearchRadios
@RobertResearchRadios Жыл бұрын
I epoxy'd mine on there after I was completely happy with it.
@chadkline4268
@chadkline4268 Жыл бұрын
Alpha particle is a Helium 4 nucleus ... 2 protons, 2 neutrons.
@lordgarak
@lordgarak Жыл бұрын
Late comment on an old video. But that thing is measuring as if there is something really wrong with it. Cavity filters should only have a few DB of insertion loss and have a much lower return loss. My guess is that one of the coupling loops is broken.
@RobertResearchRadios
@RobertResearchRadios Жыл бұрын
Hmm maybe a connector with a bad contact? I have no intuition for insertion loss on cavity filters so didn't notice it might be broken, but I can't see broken loops from the video at least. Maybe I'll take another look inside it someday. Not sure where it's gotten off to, but the insight of a "simple tailor" is appreciated good sir.
@alzeNL
@alzeNL Жыл бұрын
thank you very much for your very interesting video - I've ordered the M2 Antennas, mostly because I wouldnt have the time to source/build/maintain a home-brew antenna system, but I found your explanation of each antenna to be educational and useful in understanding how both operate - hope to hear your on the 'birds' - 73 2E0FWE
@rjy8960
@rjy8960 4 ай бұрын
Hi, I'm in the process of considering a couple of the M2 antennae. How are you getting on with them? Are you pleased with the results? 73 de M0SNR
@alzeNL
@alzeNL Жыл бұрын
thank you for the clear demonstration of how to use the IC-9700 squelch mode recording, just going to monitor the repeater with my vertical whitestick to see what (if anything) i capture over a few weeks. 2m is dead pretty much in my region otherwise !
@chanheosican6636
@chanheosican6636 Жыл бұрын
I seal them in steel cookie jar wirth lead strips.
@chanheosican6636
@chanheosican6636 Жыл бұрын
Cool. I have attunite 15 g and 6 g of thorite. I have a few thorium mantels. Pretty hot samples. 5 g ore 2000cpm and 5 uVs an hr.
@dannelson8556
@dannelson8556 Жыл бұрын
M2 are massively over priced and over hyped, its kind of like jewelry to hams who are more interested in appearance than function. You can build better functioning antennas for a fraction of the cost. but the you don't get the bragging rights of owning m2, at one time hams looked down at other hams who bought stuff like this rather than build it, they were know as "appliance operators" unfortunately with the rare exception of a hand full of hams appliance operator pretty much defines all hams now days
@user-eq2ug7in7b
@user-eq2ug7in7b Жыл бұрын
Damn... Look at those prices!!! I miss the good ol FPV days 😢
@erikisberg3886
@erikisberg3886 Жыл бұрын
Great video! Some ranting regarding the SMA torque, I prefer to do it by feel never had any problems. Not over tightening the connectors increases life expectancy a lot, and use some electrolube spray on the expensive ones. I also use sacrificial adaptors on expensive testgear. Not rotating the cable is important. To get a feel for it hook up a VNA and scale it to sensitive and experiment to get the feel for it. I did my master thesis at Ericsson radar and those torque wrenches were sort of religion...not that important for lab use. But if assembling a customer product they must of course be used.
@binky_bun
@binky_bun Жыл бұрын
Nice I might have to try this if I can't get the data out of the OBD port. I have solar panels on the roof of my van which is pretty much a ham shack on wheels and a raspberry pi in there monitoring the charge controller and battery piping the data into influxdb and grafana. I thought it would be cool to graph the sensors for the engine and whatever else is exposed over ODB that might be interesting. I know it has TPMS sensors but I've only seen it pop up messages telling me to go check them manually and nothing stating the pressures for each wheel. Might be interesting to see how pressure changes with ambient temperature compared to when the rubber heats up from driving
@RobertResearchRadios
@RobertResearchRadios Жыл бұрын
I actually tried to get data out of the OBDII port on the TPMS sensors. I leaning towards the idea that it's a separate system from the ECU or that the data is not reported there (no codes were pulled when the lower pressure light light was on either). At least in my experience my Bluetooth scanner and Torque Pro couldn't see anything. Let me know if you have any success with that. Spoiler Alert but I'll be integrating a KrakenSDR into my Mazda in the next few months, so stay tuned for RDF shenanigans :)
@RobertResearchRadios
@RobertResearchRadios Жыл бұрын
More Info & Source Code Here: robertresearchradios.com/p/rtl-sdr-mazda-cx-5-tpms/
@stevendodd6477
@stevendodd6477 Жыл бұрын
why use satpc and Gpredict? what does satpc give you over and above?
@RobertResearchRadios
@RobertResearchRadios Жыл бұрын
SatPC32 is receiving direct development support for current Ham Radio birds, and the community keeps updated doppler files around that were ready for use with RS-44 on FT-4. I'm using SatPC32 to do doppler correction on my IC-9700 and G-Predict to do doppler correction on my SDR panadapter. I prefer the user interface from GPredict for getting an idea of what's going on inside and outside the amateur radio constellation, but GPredict is not receiving updates or support since 2018, so I'd rather use the maintained dedicated Ham Radio software to drive my radio. I don't know if I could drive multiple radios from G-Predict, but this division of labor between the computer programs leans into their strengths and away from their weaknesses. It's just my way of doing it I guess; one integrated solution would be great, and I look forward to what can replace G-Predict for hobbyist use with >5000 satellites of interest now in the catalog. It's starting to lose its edge as a tool for general situational awareness when trying to render 5000+ objects with >20 overhead at a given time... I'm not sure how G-Predict is going to handle running out of NORAD SATCAT ids, but it's already clear it can't handle that many birds.
@stevendodd6477
@stevendodd6477 Жыл бұрын
@@RobertResearchRadios thanks for your response. Does the AFC on the ic9700 not manage doppler for you?
@RobertResearchRadios
@RobertResearchRadios Жыл бұрын
To my understanding, and I caveat this with that I've never needed/wanted to use the AFC, the AFC only works for FM signals and to track the carrier center freq for you during like ISS repeate passes where 6 or 20kHz doppler shift over the pass is less than the FM deviation of 25kHz. The frequency control required for FT4 is so much more precise than what the AFC is meant to do when just following an FM carrier freq as it is observed that with SSB modulation for FT4 (MFSK in the 3kHz AF) you really need a computer to do it with precise orbital elements from the interwebs and software to back out the doppler. Also, Hot take 🔥 but IMO the 9700's AFC and Autotune features are mostly a meme for satellite ops. They're more useful for saving you time in center tuning to a fixed transmission.
@stevendodd6477
@stevendodd6477 Жыл бұрын
@@RobertResearchRadios ta, I am thinking of buying an ic9700; I looked at the egg beaters and discounted them because of the low gain, I was looking at the Leo sat cross yagis, but discounted them because I didn't want to fork out an extra thousand pounds for a rotator that did elevation. At the moment I am thinking rotating horizontally polarised yagis fixed at 15 degrees and accepting the fades as and when they occur.. Do you have any advice?
@stevendodd6477
@stevendodd6477 Жыл бұрын
Will be my first radio and I would like to experiment with other comms not just exclusively satellite; I live next door to a two story building that I will struggle to clear which will block out half of the horizon below 15°