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Hopefully this is the right place to post this, I've been asking all over the internet for help identifying this object I have pictures of and this place seems like an active place to ask. I'm not the first person to try identifying this, but I do believe I've been the most...
I currently made a module to my project which isn't quite functioning correctly. It's 4 distinct parts on one board. The radio I/O, the two independent sound amplifiers out of the LM386's and the RFID card reader.
This is the circuit:
The actual inverter IC I used is 74HCT04 because it...
I was looking for an 1MHz oscillator for AM radio transmitter circuit. But I couldn't find one with the 4 pin crystal quartz oscillator. How to make an oscillator by myself with basic electronics materials? Any Circuit or ideas?
I'm trying to simulate a classic regenerative receiver under LTSpice.
I'm not sure if I'm doing things correctly.
I'd appreciate if anyone could correct me if I'm wrong, or suggets better ways of doing it.
I modeled the antenna as a voltage source.
Of course it is NOT real. I...
i recently made a SW radio using a TDA1083 radio ic using the circuit below and it works but ( not as expected )
i have been able to listen to SW brodcasts from china - greec - even egypt !
but the circuit has the folowing problems :
1- most of the stations are mixed together...
i found in my electronics salvage an old ic its a TDA3845 when i searched for it and looked at the datasheet i saw that its
a Quasi split-sound circuit and AM demodulator .
so my question is :
1- what is Quasi split mean ??
2- i was wondering can i use it to make an AM or FM radio...
I am a firmware engineer seeking an assistant/consultant to help with the development of a radio tracking device (see the following
http://www.google.us/patents/US20100149027 patent document or just search US20100149027) that is based on several different radio technologies including GPS, RFID...
Hi, I have made a simple RF circuit with HT12E and HT12D. My problem is that when I press any switch on the transmitter and cut power to the transmitter by holding push switch, the receiver end is still showing a LED output. I want it to go to the default state of all LEDs off whenever...
I'm trying to understand this circuit and so far I read a lot about fm transmitter circuits, but there's no clear description...
I am trying to tackle a question at University on my Radio frequency module and it is regarding to transmission lines.
The questions goes like the following:
Why the magnitude of Г is equal to or less than 1?
What is the physical meaning of the phase of Г?
What is the increment of...
Hi i am new to this forum and thanks in advance
I am a domestic electrician myself, know a little about electronics but not a great deal.
I have recently bought a radio from lidl (it was cheap and looked the part! )
However it seems to be the loudest thing on the planet. Even on volume 1...