Just got my System Blue up and running south of Houston. In the next couple of months I will be relocating it to a remote area of west Texas in the Big Bend region. There is a definite hole in coverage out there that I hope to fill.
BIG thanks to mike6158 for the build and advice!!!
With the power switch off at the controller, when I plug in the USB power supply, all the LEDs seem to go thru test-blinking, then the Power and Mode LEDs remain on, just as they are when I turn on the power switch. The red LED on the connected E-Field pre-amp board is also always lit.
Confused -- shouldn't the power switch shut off everything?
Does someone tell me why the system graphic of my detector show always a offset of + 50/60mV from zero? Can I adjust this anywhere? In the web interface, a can`t find any adjustment for this! It`s seem any wrong value in the ADC.
Sampling per InputResolution: 12bits, Period: 666ns = 500.0kSPS, Time: 2000ns
today I installed the four digital lowpass filters. The noise floor droped from 110mV to 50mV, Which allowed me to raise the gain to 16X10 with no problem. I`m running in manual mode. I`m testing yet the best value for LPF tune, but seems to be around 50KHz. I have the LPF tuned in 25Khz and monitoring the spectrum but I can`t see advantage in relation to 50Khz. I have a lot of militar stations in VLF with very strong signals (about 75 or more dBuV) between 15KHz and 60Khz which occupy part of spectrum, but apparently without causing problems. I`m able to tune and measure this stations on my VLF receiver R&S EK070, with an R&S EH10 active antenna. I also took 4 outputs on the back panel to connect the oscilloscope.
I think the lowpass filters were a good investment, but I have to wait some more time to check the operation.
Have you, per chance, considered a map showing areas of interest?
I've just indicated my interest in a receiver (I want to put together the whole shebang), but it might (at rank 2347) be years before I'll reach the "interested" point. I can fully understand if you have an area flooded with receivers that it will prove of no further value getting another, but there is nothing on the site (that I found) to indicate whether there is value in registering interest.
If the improved voltage regulator PCB 21 is now necessary for System Blue, where does one obtain the PCB 21 board -- or does one need to build it from scratch?
Good day to all! Question about using Arduino in the project. Maybe someone has had this problem? I think that in this case the project can be more widely distributed.
found by incident my old System green and am wondering if it still can participate the Network. Thought of reactivating it via Serial tracker app.
Would be great to know if the Hardware can be work in future again.
thanks in advance for your Response,
