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I would like to add that the UHF antenna device stopped working after a few minutes. I'm not sure why, but now it doesn't produce a signal at all anymore. :cry:
The cutoff makes sense. Would it be possible to limit the amplification of the transistor so that strong stations are only slightly amplified, just enough so the weak channels show a steady image?
I just made a quick experiment with a little 9volt powered UHF antenna I found lying around :-P
I...
Hi Brian, thanks for the info. I agree that a MMIC amplifier would be most suitable for this circuit. I don't have access to the antenna or can even get close to it. I was hoping the amp could be hooked up between the antenna cable and the tv antenna-in plug. It would also make it easier to...
Some tv channels come in fine and strong. Only a few have a weak signal and don't work properly on some tvs with built-in TDTs in my house.
If I were to hook up the UHF amp, what would happen to the channels that already have a strong signal?
Can I damage the transistor or TV?
Someone else...
@BradtheRad: Thanks for sharing this info. It's very valuable. I found this circuit which is a UHF signal amplifier which uses one of these microwave transistors, a 2SC3358 with up to 7GHz Gain B Product. I have the same issue as you with not getting all tv digital station on my TV and would...
Thank you for replying. After some research I found this http://www.talkingelectronics.com/projects/200TrCcts/101-200TrCcts.html#69
VHF AERIAL AMPLIFIER
This amplifier circuit can be used to amplify VHF television signals. The gain is between 5dB and 28dB. 300ohm twin feeder can be used for the...
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:
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