Questions tagged [voltage]

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Is there a digital multimeter that is more interesting for a ham than a run-of-the-mill model? [closed]

My 22-years old Fluke 79 died on me today... Luckily, it was a quiet dead, but nonetheless it left me a bit emotional... So, I am in urgent need of a replacement digital multimeter. This made me ...
10k views

Measuring RF voltages with a multimeter

Is it possible to measure RF voltages with a multimeter? I have a multimeter which can measure AC voltages up to 600V RMS, but I'm not sure because I don't know if it assumes the signal to be 50Hz, or ...
4k views

How to calculate the peak-to-peak voltage of a sine wave given RMS voltage

How do I calculate the peak-to-peak voltage of a sine wave given RMS voltage?
195 views

Determining whether signal meets the 12 dB SINAD voltage

The specification for a certain radio receiver says: Typically 12dB SINAD NBFM for 0.15uV at 145MHz. If I understand correctly, this means that the received radio wave should have a voltage level of ...
171 views

How is working on DC high voltages as in a tube radio different from 120VAC?

Suppose that I am familiar with the safety procedures for working on 20 A 120 VAC 60 Hz household lines. What should I be prepared for before working on high voltage DC circuits (say, 800 volts) as ...
86 views

Voltage wave in transmission lines

The solution for the voltage in a transmission line can be written as: $$V(z) = V_o^+ e^{-jkz} + V_o^- e^{jkz}$$ The voltage $V(z)$ is the difference between the conductors of the line at a certain ...
57 views

Crystal Oscillator Output Impedance and Output Voltage

I am working on a project designing a 40 MHz radio transmitter, but I need some clarifications. I need to know how to calculate its output impedance. I know how to calculate common collector's output ...