QRZ Site

( click on image above
to go to QRZ.com )

K0DPW Facebook Page

( click on image above to go to K0DPW facebook page )

ARRL Site

( click on image above
to go to ARRL.org )


Get your first HAM Radio FCC license ( Technician Class ); all privileges above 50 MHz ( VHF & UHF) ----- Get your second HAM Radio FCC license ( General Class ); All operating modes & majority of the amateur spectrum below 30 MHz ( HF ) ----- Get your third and final HAM Radio FCC license ( Extra Class ); ALL privileges ( frequencies & modes ) granted to Amateur Radio Operators.                                   Visit VE3EN's SolarHam.net for complete Solar Data of interest to HAMS.



CIRCUIT BOARD TRACE CALCULATOR
IPC2221 STANDARD


PCB Trace Width Calculator is used to find the trace width of printed circuit boards based on a curve fit to IPC 2221. The calculation of trace width for printed circuit boards (PCB) are based on temperature raise, conductor cross sectional area and current norms.

A new standard IPC 2152 has recently replaced the more than 50 year old IPC 2221 based factors. Free online calculators conforming to the IPC2152 are linked to here:

https://www.smps.us/pcb-calculator.html
https://www.protoexpress.com/pcb/trace-width-calculator/











N0NBH
Understanding
Propagation

Real time Day/Night image below courtesy of FOURMILAB




Earth Day-Night Map



Solar Data & Images below courtesy of N0NBH






This website is hosted on GREEN GEEKS HOSTING

DPWCO-K0DPW LOGO
(Credits for any applicable trade marks, or other recognition of intellectual property rights, are hereby acknowledged).

Copyright © 1993-2021. K0DPW. All rights reserved.
Copyright K0DPW Amateur Radio Site 1993-2021 | webmaster@k0dpw.com