CAN Frames encapsulated in RS485 ๐Ÿ˜ตโ€๐Ÿ’ซ#radar #24GHz

Is an isolator overkill when measuring a Gunn diode oscillators output power?
Not even the frequency, just power.

#GHz #24GHz #ghz_bands

Made my first proper contact on 24GHz this afternoon! 108KM through fog! I gave him 57 and he gave me 59 on SSB :) #MicrowaveRadio #AmateurRadio #AmateurFunk #HamRadio #HamR #RadioContest #uWave #24GHz

The wifi router in your house uses the 2.4Ghz spectrum which is in the upper range of the now defunct UHF spectrum. Wouldn't it be neat if you could tune an old CRT TV to the same channel as your wifi and see patterns?

Unfortunately, UHF channels were much wider so the TV wouldn't be able to pick up much, not that it would know how to demodulate it anyway.

Kinda funny to think we have tiny little TV stations in our houses. ๐Ÿ“บ

#wifi #tv #radio #electronics #uhf #24ghz

YES!

I did find the right connector.

Sure, it was in the third bag of miscellaneous MIL connectors .

But I found it.

A slight step forwards on the #24GHz #Flexihopper transverter project.

Best WiFi frequency band depends on - GTech Booster

When it comes to WiFi, the two most common frequencies are 2.4 GHz and 5 GHz. Each frequency band has its own advantages and disadvantages when it comes to speed, range, and other factors.

GTech Booster
Well, we didn't win any distance awards, but me and G1DFL made a #24GHz contact today at the Reading Rally... It was actually crap when we pointed the dishes at each other (I'm guessing the signals overloaded the transverters), but when we bounced the signals off the car, or off the shipping containers over the hedge, we each sounded great! #CarScatter #mmWave #Microwave #AmateurRadio #AmateurFunk #HamRadio #HamR

So very used #OCXO oscillator cans from ebay.
They ware cheap and most of them should work.
Plenty of projects of mine and from friends will have nice, stable and cheap reference clocks.
And if there are duds, I get to pull one to bits or possibly learn how to repair OCXO's.

I plan to use one as a refclock for a homebrew signal generator, when I repair and re-home it to a better case.
And for a #24GHz project.

I added an HLK-LD2410C motion sensor to a Sonoff S26 smart WiFi plug running #ESPHome. The #LD2410 uses #24GHz millimeter waves and can be invisibly mounted inside the enclosure. https://lieven.kks36.be/2023/06/11/adding-ld2410-motion-sensor-to-sonoff-s26-smart-plug-running-esphome/
Adding LD2410 Motion Sensor to Sonoff S26 Smart Plug running ESPHome | LectroLeevin

Too make matters worse
Second prize went for a #24ghz #mmwave radar that two dudes brought along from their employer it is used in traffic control.

Idea: to use it for sleep problem detection

So they got applauded and especially highlighted that they transferred tech from traffic to health.

Only, it sounded familiar. I thought ti.com had it as reference implementation

https://www.seeedstudio.com/24GHz-mmWave-Radar-Sensor-Sleep-Breathing-Monitoring-Module-p-5304.html

They only plotted distance and said you can see if movement and unhealthy sleep

MR24BSD1 24GHz mmWave Sensor - Respiratory Sleep Detection Module | Doppler radar | Sync Sense | Privacy Protect

The MR24BSD1 24GHz radar module applies Dopplor detected theory to implement human sleep quality monitoring providing a fully total private and secure sensing environment, independently from other noisy influences. It is a useful privacy-protected, secure sensor radar systems in smart home applications like sleep safety alarm, sleep respiratory detection.