I mean do the radio modules have part numbers.
We would have to guess how they work to guess why they may not be working for you.
If you give us the part numbers, or specification of the radio modules, someone might look them up and have a closer look at what might be your problem.
For example...
Do you have specs, part numbers for the radio modules?
It would seem that they are not working, or you are not talking to them in a way they understand.
Actually a quick search of a lot of more recent electronics texts shows very few I looked at introduce phototransistors.
Of the pages I googled
https://www.nutsvolts.com/magazine/article/light-sensitive-circuits
was not bad for a brief one-page introduction. Might get you started.
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What you...
Given the emitter resister and the voltages you quote, you can calculate the change in emitter current.
As an emitter follower it seems you have most of it worked out.
For an emitter follower, if you imagine that the current gain is high, most of the emitter current is from the collector.
In...
Hand, as in hobbiest, or electric professional? (see Duke37's message)
The professional ones likely have distributors somewhere nearby, who may have a display model.
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Otherwise availability is likely location-dependent.
Sorry, just trying to make sure I have your question clear.
You have one of these circuits/devices that create a Jacob's ladder powered by a battery.
The device is not rated for continuous use, probably as the voltage conversion electronics need to cool down to not expire.
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You are asking after...
Check out wimax? (If you have abudget)
If your points are stationary then directivity will likely get you there. Many trials online claim long-distance directional results with Wifi. Many DIY directive antennas. LIkely violate the EIRP standards. They will more than likely need to be directive...
Traditional fish aggregating devices (FAD) are silent floating platforms of various sizes. They usually don't have any active devices on board.Perhaps tossing it out there to float is enough.
:)
Many thanks for your words.
Have to agree, I also had the impression that the original poster had managed to read something negative into your answer and was unlikely to see later messages.
Optical - an interesting option.
Going off-topic.
I do admire the practical experience aspect some of...
I wanted only to raise the question of sampling and clocks.
Fair enough perspective. So more clearly;
If the binary waveforms in your simple diagram above are of (from & to ) somethings that produce and cope with self-clocking protocols then your figure is about all you need. This may be what...
If you are up for some python or similar www.pyimagesearch.com is a site about how to do similar things in python using machine learning toolboxes.
OpenCV will also give you the tools to do similar. These normally run on a separate platform with peripherals such as cameras attached. Options are...
If "it" is light a bulb from a battery of greater voltage, then, it can be done. A resistive divider is just not an efficient way to do it.
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Look up "voltage regulator".
Voltage regulators usually look like a variable resistance in series with the bulb, as mentioned above, staying just right to...
Operating and service manual available on the Keystone site. Seems to include schematics.
https://www.keysight.com/main/techSupport.jspx?pid=3581C%3Aepsg%3Apro&pageMode=PL&t=79841.g.1&cc=FR&lc=fre
(Google gave me French first, but manual is in English)
I wholeheartedly agree that you probably should stay off the cellular bands.
Interference with licensed spectrum will be frowned upon with consequences. That will go for many bands.
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All bands will have power limits, often as EIRP.
Check out the bands available. Others here likely know this...
May I ask what drives your choice of frequency and power?
It's just that these will limit your options.
Remote connection, for what? peripherals, remote desktop? Custom protocol? Serial over USB?
Urban or rural?
Line of sight?
In what form do you have these signals?
Transient electrical signals?
Sampled in a computer?
Spreadsheet?
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Is the distortion severe? or subtle as it might be in an audio circuit?
Use the hand to scan a single photodiode across the scene?
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A palm reader?
Multiple tactile sensors and a palm that goes flat.
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What sort of hand construction, structure are you going for?
If you want tactile, on the grippers/fingers the gripper positions could be optimised for the shapes to...