Would it be possible to boost the signal from an aerial antenna with a simple class A amplifier circuit to get a stronger digital tv reception?
With something similar to this:
With something similar to this:
I believe around 600 MhzI don't see much hope for that circuit being useful, since it contains no meaningful details. What frequency band(s) do you think are occupied by digital television channels?
It's more funAntenna amps are very inexpensive. Why build one?
I tried already with a BC547 and a N2222 NPN transistor, but I think they cannot handle the frequency. I didn't see any improvement in the signal strength. Perhaps this would only work for analog tv channels and not digital tv?OK. You are risking about $2 worth of parts. Build it and tell us how it turned out.
I understand, but my thought was that a class A is a broadband amplifier and perhaps with the right transistor it could actually work.It may be fun but building even a 600 MHz pre amplifier is a pretty good technical challenge, right down to not just the components but how the board is constructed and components spaced. This is likely why even experienced RF engineers more often choose to buy over build. Next the antenna and feed line are everything too. High end RG6 (75 Ohm) coax is preferred with a good high quality high gain antenna on a good rotor system. There is much more to this than the simple common transistor amplifier you posted.
Ron
Absolutely wrong.I want to clarify that this device I try to build goes between the coaxial antenna cable and the tv antenna in-plug. It's not an RF circuit,
What I meant to say its not a sophisticated receiver / transmitter RF circuit. Just a transistor boosting the current.Absolutely wrong.
This is like saying, "If I scrape the flash powder out of my firecrackers, will it make my SR-71 spy plane go faster".
by Jake Hertz
by Jake Hertz
by Jake Hertz
by Duane Benson