Unanswered Questions

I'm faced with the problem of explaining the harmonic production in a system where the second order intercept points of the cascaded components are unknown. As a way to bolster my explanation, I would ...

I'm trying to develop a pcb that is capable of handling signals over 6GHz and created a test board to see how the pcb and connectors perform. The pcb is a relatively low-cost 4-layer FR-4 TG155 board ...

I am designing a microstrip PCB with frequencies ranging from 100MHz to 8GHz. There are no significant issues at lower frequencies, but the signal loss becomes quite high as approaching 8GHz. ...

I need to generate a 1 GHz bandwidth chirped pulse, 100 ns long. In the past, I have done this using fast arbitrary waveform generators (Keysight M8195A), but this is an expensive and very general ...

I'm attempting to run a Nema 17 stepper motor using the common A4988 stepper motor driver. I'm running the motor with a Teensy 4.0, an Arduino-based microcontroller. The main issue I'm running into is ...

I am working on a circuit that drives an inductor at its resonant frequency. However certain models of MOSFET I simulate the circuit with experience oscillations at the MOSFET gates as pictured below. ...

I am currently working on a project for which I am in charge of the electronic circuit. Since I have never worked with electronics before, I am really desperate and unsure whether what I am doing is ...

I am working on wideband direction finding algorithms for passive sensors. I started with Music algorithm. For practical reasons, the spacing can not be maintained lambda/2. For greater antenna ...

If a board with the onboard radio (e.g., Bluetooth) chip disabled by software using a jumper, would it be considered to be an intentional or unintentional radiator? That is, the onboard radio can be ...

I have a pair of 900 XSC S3B xbee pros and a couple 2dBi duck antennas. I just did a simple outdoor range testing and only got about 2,000 feet. I was outdoors without any buildings in the way, but ...

I am trying to build an antenna to connect to the GOES-16 satellite (downlink at 1690,1MHz, linear polarization) with my SDR. My plans are using a 1m offset parabolic dish with a biquad feed connected ...

I have designed a RAM PCB for a very basic 8-bit CPU project that uses an IDT 7132 2k x 8 dual port SRAM. The datasheet for the IDT7132 is here: https://www.renesas.com/en/document/dst/713242-...

I've design a superheterodyne receiver for frequencies between 88-108MHz. Below shows the final schematic and I wanted to get a second opinion on it. Specifically, I wanted to know if the general ...

Some PLCs, such as Allen Bradley CompactLogix, allow "online" changes to be made to the running program on the PLC. These changes are (almost) instantly applied and don't require the PLC to ...

Let me preface by saying that I am new here, and I can't seem to solve this problem for the life of me. Problem: I am using the LTC2655BIGN-H16 DAC and attempting to interface with it via I2C with an ...