Left Border Content - RF Cafe
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Copyright: 1996 - 2024
Webmaster:
Kirt Blattenberger,
BSEE - KB3UON
RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while typing up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
My Hobby Website:
AirplanesAndRockets.com
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Sub-Header - RF Cafe
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Tech Smorgasbord Archives - 2 |
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Average Base Salary per Design Work Type
Electronic Design Research
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Type |
Pay |
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IC, Semicon |
$100.2k |
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MEMS |
$93.6k |
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Military |
$92.0k |
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Computer Hrdw
|
$91.7k |
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Medical |
$89.7k |
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Comm Systems |
$89.7k |
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R&D |
$87.6k |
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Software |
$86.3k |
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Avionics, Marine |
$83.1k |
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T&M |
$82.3k |
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Consumer |
$80.8k |
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Components |
$78.3k |
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Industrial Cntrls |
$77.0k |
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Automotive |
$76.8k |
|
Power |
$76.8k |
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Security |
$73.1k |
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Asia's Economies Rated
Potential
Ability to Enhance Businesse
(Max score = 10)
EE Times Research
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Country |
Score |
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China |
6.74 |
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Japan |
6.28 |
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Korea |
6.20 |
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Taiwan |
6.14 |
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Other |
5.89 |
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Hong Kong |
5.67 |
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India |
5.54 |
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Asian |
5.33 |
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Natural Amenities by County: 1970-1996
The USDA published a map that displays how desirable an area is to live based on topographic variation, vegetation,
access to water, etc. Green is best, red is worst.
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L=(Ψ†|i∂τ-H|Ψ)+g(Ψ†|Ψ2)
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You undoubtedly recognized the above equation as describing only 10 of the 11 dimensions of String Theory, as developed by Michio Kaku, et al.
If you have the full equation for all 11 dimensions, please e-mail it to Michio so he can get some sleep.
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U.S. National Archive Digital Storage Requirements
IEEE Research
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Year |
Data Size |
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1995 |
57 GB |
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1997 |
249 GB |
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1999 |
255 GB |
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2001 |
268 GB |
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2003 |
546 GB |
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2004 |
1.9 TB |
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2005 |
5.1 TB |
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Top Contract Manufacturers
Electronic Business Research
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Silicon Valley's Slice of the U.S. Venture Capitalist Pie
EE Times Research
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2005 |
25.8% |
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2004 |
27.6% |
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2003 |
24.7% |
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2002 |
24.5% |
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2001 |
23.5% |
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2000 |
21.2% |
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1999 |
21.0% |
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1998 |
20.0% |
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1997 |
23.4% |
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1996 |
25.9% |
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Data File Storage Requirements
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Information |
Size |
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All words ever spoken by humans |
5 EB
Exabyte
(1018) |
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All material ever printed |
200 PB
Petabyte
(1015) |
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All material gathered by 9/11 Commission |
1.2 TB
Terabyte
(1012) |
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Pickup truck filled with books |
1 GB
Gigabyte
(109) |
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Data contained on a 3.5" floppy |
1.4 MB
Megabyte
(106) |
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Low-resolution JPEG file |
100 kB
Kilobyte
(103) |
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Engineering Top Pay
EETimes Research
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Position |
Nat'l Mean |
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Top Pay States |
Amount |
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Eng Manager |
$104,210 |
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Vermont |
$127,120 |
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California |
$123,160 |
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New York |
$116,120 |
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Computer Eng |
$85,540 |
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Colorado |
$99,350 |
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California |
$93,520 |
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Massachusetts |
$87,910 |
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Software Eng |
$83,460 |
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New Hamp. |
$93,670 |
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California |
$92,600 |
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New Jersey |
$92,230 |
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Electronic Eng |
$78,620 |
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Wash. D.C. |
$93,780 |
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New Jersey |
$88,610 |
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California |
$87,910 |
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Electrical Eng |
$75,540 |
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California |
$87,460 |
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Texas |
$84,250 |
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Wash. D.C. |
$81,940 |
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Ph.Ds Awarded in Science & Engineering
IEEE Research
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Year |
U.S. |
E.U. |
Asia |
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1975 |
12.2k |
6.9k |
4.0k |
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1980 |
11.2k |
7.7k |
5.8k |
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1985 |
12.6k |
8.7k |
7.7k |
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1990 |
16.2k |
19.1k |
9.9k |
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1995 |
19.2k |
20.1k |
14.2k |
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2000 |
18.0k |
23.9k |
18.0k |
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Weight of a 150-Pound Man in Other Gravitational Fields
Discover Magazine Data
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Object |
Weight (lbs) |
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Sun (Earth's) |
4,100 |
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Jupiter |
380 |
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Moon (Earth's) |
25 |
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Eros (asteroid) |
0.1 |
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Carbon Atom |
10-35 |
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Dust Speck |
10-27 |
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Voyager 1 |
10-7 |
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White Dwarf Star |
4x107 |
Milky Way's
Black Hole |
7x107 |
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Neutron Star |
2x1013 |
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The device a jeweler uses to test for diamond authenticity works by measuring the heat transfer capacity of the stone. A diamond's
thermal conductivity is much greater than that of any of the fakes...until recently when
moissanite was developed. That synthetic diamond substitute
has a coefficient very close to a diamond's, rendering the test unreliable. Even experts are challenged by the moissanite fakes. A reflectivity
test had to be developed to guarantee detection.
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