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Is there really any difference between the upper HF and the lower VHF frequencies in voice communication?

by Admin on April 27, 2010

In regards to a wireless system.Range, interference, penetration of structures, weather?

{ 1 comment }

Which camcorder is the best between the Sony HDR-XR520V and the Canon VIXIA HF S11?

by Admin on April 24, 2010

I’m thinking about buying a camcorder but I want a camcorder for the price.
I’ve been searching for some and found these two, (I prefer one of these two)

So please tell me which I should buy?

Thank you

{ 6 comments }

What is the net ionic equation for reactions between aqueous solutions of HF and KOH?

April 6, 2010

I figured it like this: Complete Ionic: H+ + F- + K+ + OH- -> H2O + F- + K+ Net Ionic: H+ + OH- -> H2O What did I do wrong? (It’s possible that my test was misgraded if this is indeed correct, in which case I wish I had noticed sooner.) Share on [...]

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What’s the difference between the suspension in a Honda CRX DX 91 and a Honda CRX HF 91?

March 30, 2010

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What is the difference parts wise between a Honda CRX HF model to any other CRX model?

March 24, 2010

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How can i figure out the differences between the physical properties of HF and CaF2?

March 20, 2010

i dont know how to predict their differences :S Share on Facebook

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Hurricane ida amatuer radio communications VK3FSES Yaesu ft897d between Australia and USA

March 17, 2010

I apologise for originally stating that Brian was in Louisiana when he was in AL. Confusion had reigned on the nodes earlier, anyway at one stage we thought we were about to lose the repeater, but we continued on and the Hurricane downgraded during our copy. Brian was providing an excellent service despite the circumstances [...]

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how do hospitals deal with communication and turnover between the emergency room and the operating room.?

March 1, 2010

I’m looking for any evidence-based practice information on this topic. Share on Facebook

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what’s the difference between these two amateur radio operating manuals??

February 14, 2010

I am trying to purchase an ARRL operating manual for radio amateurs, the latest edition is the 9th edition, but I don’t want to spend that much money on a book, so I have been shopping on Amazon and other web sites, and found the 8th edition, and I was wondering what is the main [...]

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What is the difference between a HAM Radio and a CB Radio?

February 10, 2010

What is the difference between an Amateur Radio (HAM Radio) and a CB Radio? Share on Facebook

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