From the category archives:

Amateur Radio

Amateur Radio Operators – Heroes? {thumbnail}

May 30, 2010

by Whiskeygonebad Amateur Radio Operators – Heroes? Amateur radio is a hobby and has over 600,000 radio operators in the USA alone. The hobby is about communications and various ways of communicating via radio waves. What most people do not know about the hobby and the people that are operators is that they are one [...]

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GRAY EMBROIDERED Ham Amateur Radio SHIRT “Radio Active”

May 30, 2010

Amateur Radio on eBay: Share on Facebook

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Lastest Amateur Radio auctions

May 30, 2010

Some recent Amateur Radio auctions on eBay: Share on Facebook

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Hf Amplifier Bob Briggs vk3zl

May 29, 2010
Thumbnail image for Hf Amplifier Bob Briggs vk3zl

Robert Brigs was First licenced in 1978, his primary interest in ham radio has always been home brewing and 160 meters. he recently got the opportunity to put together this desk top amplifier using the GS-35B triode. The design is not original although I have included a few ideas of my own. He contacted Tony [...]

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MARS 2009 — Part 4 of 4 — Hughes

May 17, 2010

Status of MARS in 2009 — a talk given at the combined Emergency Communications West (ECOMMWEST) and Pacificon conferences in Reno, Nevada in May 2009. The Military Affiliate Radio Service is introduced by Dr. Roger Brett Hughes, AFA9HR / AFF9TD, the Region 9 USAF Training Director for MARS, who is an internationally renowned technologist, as [...]

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In a buffer system of HF and its salt, NaF?

May 17, 2010

A) the HF is not necessary B) the HF neutralizes added base C) the F- neutralizes added base D) the F- neutralizes added H2O E) the HF neutralizes added acid Share on Facebook

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Consider the equilibrium: HF + H2O ↔ H3O+ + F- What effect will the addition of HCL have on the equilibrium?

May 17, 2010

The answer is that the reaction will shift to the left. I need to know why? there is equal # of moles on both side, so when we add something, it should shift to toward the side with many # of moles. In the above case, there are equal number of moles on both side. [...]

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Red Cross: “Ready for a New Century” 1956-1981 – Karmavision

May 16, 2010

karmavision.tv The 1960s and 70s were times of social upheaval. Vietnam began to take center stage in the public eye. At the military’s request, Red Cross began a program to provide recreational activities in Vietnam. The organization continued its long tradition of providing emergency communications between soldiers and their families. Red Cross lived up to [...]

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K7AGE Visits AES Orlando

May 16, 2010

I was in the area and stopped by to see the guys. Had a good time a learned a lot about Yaesu’s new mobile radio. Share on Facebook

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The pOH of a 0.100M solution of hydrofluoric acid, HF, is 11.91. What is the acid-ionization constant of HF?

May 16, 2010

Also, what is the percent ionization of hydrofluoric acid in this solution? Share on Facebook

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