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HAMFEST CALENDAR
14 OCT Kalamazoo, MI
Kalamazoo Hamfest 8 AM to 1 PM
Exhibition Hall E. Kalamazoo Fairgrounds, 2900 Lake St.
Adm $5 at the door; talk-in on 147.04 (94.8 Hz) Repeater.
http://www.kalamazoohamfest.com
For info: info@kalamazoohamfest.com
20 Oct Holland, MI
Great Lakes Super Swap 8 AM to 1 PM
West Ottawa South Campus, 3500 152nd Ave.
Adm $6 at the door; talk-in on 147.06 (94.8 Hz) repeater.
http://www.hollamdarc.org
For info: swap@hollandarc.org
28 Oct Stirling Heights, MI
USECA Hamfest 8 AM to 1 PM
Polish American Cantury Club, 33204 Maple Ln Dr.
Adm $5 at the door; talk-in on 147.18 (100 Hz) repeater.
http://useca.rfc971.org
For info: kz8n@arrl.net
Paul WD8JOM
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URLs
Interesting sites:
http://www.youtube.com/watch?y=yBGldf0VjQ4
http://www.magicaljellybean.com/keyfinder.html
http://www.hardwarebook.info
Health sources;
http://www.mayoclinic.com
http://www.webmd.com
http://www.medlineplus.gov
http://www.healthandage.com
http://www.nia.nih.gov/health
http://www.americanheart.org
http://www.strokeassociation.org
http://www.cancer.org
http://www.healthfinder.gov
http://www.medhelp.netusa.net
http://www.clinicaltrials.gov
http://www.centerwatch.com
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INCREDIBLE BUT TRUE
Those twisty, screw-in fluorescent bulbs. (CFLs) were
invented 30 years ago at General Electric by Ed Hammer. Although executives at GE liked Ed's invention they didn't want to spend the money on manufacturing facilities so they shelved the idea. It wasn't until details of he design leaked out to competitors that the bulbs began to be produced. (So much for corporate bureaucracies!)
Hammer has published more than 40 papers and was awarded the Edison Medal by the Institute for Electrical and Electronic Engineers in 2002.
(This tidbit was picked up from the Fort Wayne clubs'
newsletter.)
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LENGTH OF COAX
(This was picked up from the ARRL Contestor. I found it attention getting in the effect one inch would have on frequency response. One of those little things that we tend to forget. Maybe, it's not worth remembering!)
I'm sure antenna system builders will appreciate the following tip from Tim K3LR. "When cutting ¼-wavelength sections of transmission line, in many cases you really want to cut your lines higher in frequency than where you ultimately want them to operate. Why? Any lead length to antenna elements or internal switch (relays) etc. is in series with your phasing lines and is additive and lengthens the "real" line length. This "extra length" lowers the frequency at which your line is 1/4 wavelength (or 1/2, 3/4, etc.). For every "inch" of "extra" lead length, PC board trace or relay RF wiring, here is what happens:
On 160 meters the shift is 1 kHz lower in frequency.
On 80 meters the shift is 4 kHz
On 40 meters the shift is 17 kHz
On 20 meters the shift is 65 kHz
On 15 meters the shift is 150 kHz
On 10 meters the shift is 270 kHz"
You can measure the extra length of line by using an SWR analyzer with the accessory equipment, such as a switch, attached to the line. This is also a consideration when constructing a switched stub.
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Heller's Law
The first myth of management
is that it exists.
Corollary:
Nobody really knows
what is going on anywhere in the
organization.
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VANITY CALL SIGNS
For those who want to get their own special call sign, the cost has done down. The current cost has gone down $11.70 from the previous high
of $20. It has varied over a range of 12 to 50 dollars during the time that such calls have been available.
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