Showing posts from July, 2016

So where did the name Google come from?

Q: So where did the name Google come from?

A: While at Stanford, Larry Page and Sergey Brin explained the origin of the name Google in their famous paper, "The Anatomy of a Large-Scale Hypertextual Web Search Engine".

"We chose our system name, Google, because it is a common spelling of googol, or 10100 and fits well with our goal of building very large-scale search engines."

Good DX and 73, NJ2X

A Radio Palindrome

"I, madam, I made radio! So I dared! Am I mad, am I?”

— Spider Robinson - a palindrome.

Project: Regulating the 12v Output of the Nomad 7 Solar Panel

This article is in a series about using the Nomad 7 Solar Panel for amateur radio use on backpacking trips.  Our prior article was, "Project: Fabricating a Anderson PowerPole to 3.4mm dc connector for the Kenwood TH-F6A".
Something went wrong during field testing of recharging our Kenwood TH-F6A HT radio using the Nomad 7 Solar Panel.  Sadly, our TH-F6A stopped charging (lights went out) and would then no longer turn on.  This issue occurred within only a few minutes of charging in full sunlight.
There are a couple of possibilities for the failure:   The TH-F6A blew one or more of its three fuses due to the relatively high voltage (15Vdc) of the Nomad 7 Solar Panel in full sun.  The TH-F6A is rated at 10Vdc to 16Vdc though the radio's internal voltage regulator converts voltages greater than 10Vdc to heat.  It is possible the 15Vdc caused overheating and blew one or more of the fuses.  A fuse was blown when the 3.4mm connector was plugged into the radio with power applie…