Questions tagged [bnc]
A BNC (Bayonet Neill–Concelman) connector is a type of coaxial connector commonly used on test equipment and in other applications up to around 3-4 GHz and sometimes at higher frequencies. The most common impedance is 50 ohms but 75 ohm variants are also available.
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BNC panel connector nut position
I need to use this panel mount BNC for an enclosure.
My problem is I cannot figure out if the washer will be on the flange side or the nut side.
I cannot find any schematic or photo as well so I had ...
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PCB Impedance mismatch?
I created a very simple PCB, two layers for testing a OXCO.
The overall circuit is as follows:
Now, so far so good from the testing point, I got what I expected: A square wave signal with a maximum ...
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Characteristic impedance of a BNC jack to jack adapter
I have this BNC jack to jack adapter. I want to measure its impedance but I am reading around 1mΩ. The datasheet says that it is a 50Ω adapter.
Why am I measuring such a low resistance?
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Unexpected signal at AD620 module output when Vsupply is on
I bought an AD620 instrumentation amplifier module and below is the module schematic.
Souurce - https://protosupplies.com/product/ad620-instrumentation-amplifier-module/
A problem shows up when I'm ...
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Using a BNC shorting cap as a switch
Regarding this short-circuit BNC cap:
Is there a way to know if the cap is isolated from the inner BNC pins where the current will pass through?
I want to use this as a lock with a panel mounted BNC, ...
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Looking for Low Noise High Shielding BNC [closed]
I am doing some research looking at low voltage signals, on the order of 100nV. Due to the usage of other equipment such as a current source there is spurious pickup noise in the cables carrying this ...
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How do I properly route my signal to this BNC connector on my PCB?
I am looking to use several of these Amphenol BNC connectors on my PCB.
When I look at the datasheet, my instinct tells me that I should route my signal to pin 1 and then ground the rest.
Here is the ...
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Is there anything particularly special about a "short" and an "open" in a VNA calibration kit?
I would like to calibrate a VNA with the reference plane at the end of a male BNC feedline. Surprisingly, female SOL kits are hard to find. There are many BNC 50-ohm loads available but I'm having ...
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Unclear pin connections for BNC connectors on PCB
I want to use the following BNC connector on the PCB I am designing: https://www.mouser.ca/ProductDetail/Amphenol-RF/031-5493-1010?qs=py4qCovljJ%2FMGk8N0v0eQw%3D%3D
The component has 4-pins and the ...
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Terminating unused SDI/BNC input
I use the Magewell Eco Capture Quad SDI M.2 (a small form factor quad-channel) capture device which keeps overheating after a few minutes (up to 100 C). I've read that this might be due to cameras not ...
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Splitting CB Radio Mic Inputs?
I just purchased my first CB radio and I am looking to split the microphone's output such that it can go to two outputs (the radio itself and custom electronics I plan to design).
I'm using the Uniden ...
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What happens if the there is a mismatch in impedance between signal generator and BNC cable?
My signal generator has 600 ohms in its internal output impedance (Picoscope 3204B). The BNC cable at my hand is 50 ohms, so is there any problem with the impedance mismatch? If yes how can I ...
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Inline BNC voltage reducer? [closed]
I have absolutely zero knowledge on electrical engineering.
I am currently using a lock-in amplifier and a pulsed light source (with reference-output), but the reference output signal is too big and ...
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What is the purpose of oscilloscope-probe-to-BNC adapters?
What are these adapters used for?
(Image off Google, source)
They fit over the tip of a passive oscilloscope probe, like this:
(Image excerpted from https://www.caltestelectronics.com/public/...
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BNC Cables and their impedances
V1=10 V(peak to peak), frequency of voltage source = 1kHz, D1 is a standard 1N4007 Silicon Diode, R1=10 kilo ohm (the load resistor)
In our electrical lab, we were given the circuit shown in the ...
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