Questions tagged [vhf]

VHF stands for Very High Frequency and it is generally used to denote the range of radio frequency electromagnetic waves between 30 to 300 MHz.

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Designing a VHF Colpitts oscillator using BJT

I am trying to design an Oscillator circuit which can produce a good sine wave with a frequency of at least 500 Mhz and oscillating voltage of around 10 - 15 volts. The output of this oscillator will ...
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Handheld VHF Radio Antenna Shorted Signal and Ground Connections

I am not really working in radio circuit design but I am mostly working on embedded systems sides of things. I recently build a system to listen AIS signals. I ordered these telescopic antennas to ...
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Checking for signals above strength threshold over SDR on VHF

So I have a small NooElec Software Defined Radio and I've got it working well with my Raspberry Pi using GQRX as a controller and to visualize the SDR output. My goal though is to use a python script ...
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Considering Transmission Line Effects for Clock Generator

I'm trying to design a clock circuit to convert a 50 MHz 5-volt clock signal down to 3.3 volts without inverting it. The concept is relatively simple, but as I never designed anything like this from ...