Tagged Questions
3
votes
1answer
59 views
How do receivers know what to output to radio speaker or TV screen?
I understand that receivers are often used with mixers which take the sum and difference of two signals to make an output signal. How does a radio signal of say 102.5 MHz know to tell the speakers to ...
0
votes
2answers
136 views
Limit a radio to a single station
We are organizing a game for students where we are transmitting the daily objectives and hints over from an FM transmitter. Is there a way to limit basic radios to only be able to pick up a certain ...
3
votes
1answer
181 views
Can signal quality be affected by high temp?
I would like to know if UHF signal quality can be affected by hot weather? And which of UHF and VHF is better on that case of weather ?
4
votes
3answers
486 views
Communication - 2 Battery Powered Circuits, 1 Conductor, no common ground
TL;DR I need to do is successfully transmit a wave across a single conductor between two battery powered circuits with no common ground. I already know how to create the wave and detect the wave when ...
1
vote
1answer
240 views
Theory about VLF?
Trying to make my own vlf receiver, but couldn't find a good literature about it. Does anybody know a good books about VLF theory and links to working circuits? All stuff I have found out was ...
2
votes
2answers
146 views
What are some economical ways to get a remote analog video feed?
I am a computer programmer and I like playing with robots.
But I don't have access to tons of cool toys so I try to make do with what I've got.
The other day I was trying to navigate an R/C car ...
