THE LEO amateur radio
scientific society of ALASKA
Date:
1-30-05 Newsletter number: 2
No officers, no business
meetings, no dues, no money making, no politics, no titles or rank, just the science of Amateur
Radio
Welcome! The LEOarssAK or LEOs was started on Friday,
September 15, 2000, at the Thai Kitchen on Tudor Rd. in Anchorage. Our bonding interest at that time focused on
the Low Earth Orbiting (LEO) Amateur Radio satellites; therefore the name LEOs. Since then we have expanded into most areas
of Ham Radio. Besides the presentation
of papers we enjoy a good lunch and conversation.
Our founders included AL7KK/Rob,
KL1HG/Doris, KL7AR/Mike, KL7JS/Deb, KL7DR/Dan,
KL7GO/Gretchen, KL0QQ/TOM, KL0YO/Pat, KL7QZ/John and others. Our special guest was Jerry Schmitt,
KK5YY(SK) inventor of the famous Arrow Antenna. John/QZ presented the first paper on LEO antennas specifically on
how to build an “eggbeater”. Since then
we have had papers on many topics including SETI, Grounding, Moon Bounce, How
to Use The Leos, SWR, digital modes and many other topics. We meet roughly every 6-8 weeks September
through May, on a Saturday at a restaurant in Anchorage, Eagle River or
Wasilla. We start at 11:30 with lunch
orders, our first paper is presented at 12 Noon followed with questions and a
break at 12:50 PM; our second paper is presented at 1 PM. We end at 2 PM. For information contact John/QZ at jbury@gci.net
, Mike/AR at xtiger747@ak.net or
Dan/DR at dan@obarr.net Also
please check on the Leo Net, Snipers Net and Motley Net.
MEETING ANNOUNCEMENT
Our next meeting that is firmed up will be a special
symposium of workshops to be held on Saturday, June 18th at Immanuel Presbyterian Church at 2311Pembroke St., set
back from the NE corner of 24th Ave. and Boniface just North off of
Northern Lights and Boniface. We have
4, 1 ½ hour workshops starting at 9 AM and finishing at 4 PM. Lunch will be served on site.
Our
Speaker for all 4 workshops will be:
The ARRL antenna editor:
Dean Straw – N6BV
Speaking on:
4 topics on
Amateur Radio Antenna’s
(The 4 actual topics will be announced
within the next month via this newsletter)
R. Dean Straw, N6BV
Dean has been a Senior Assistant Technical Editor for ARRL
since 1993, specializing in antennas, transmission lines and HF
propagation. He is the editor of the
last four editions of The ARRL Antenna Book and the last four volumes of
The ARRL Antenna Compendium series, not to mention a two-year stint as
editor of The ARRL Handbook.
First licensed as WH6DKD in 1959 at age 12, he has been
active since then mainly on HF—and mainly in contests, both phone and CW. Experience in ham radio led him to a degree
in electronics engineering at Yale in 1967, where he was active at the W1YU
club station, operating mainly in
contests. Dean worked in the marine
electronics industry for more than 25 years before joining ARRL staff.
Since returning to the west coast in 1998 from New
Hampshire, Dean has become ARRL’s longest-distance full-time
“telecommuter.” He operates regularly
at the N6RO contest super station in the East Bay or from DX-exotic locations
around the world. Dean resides with his
wife, Rayma, in San Francisco. He has
two sons and four grandchildren.
Some of Dean’s many publications:
(He has over 19 pages of “GOOGLE” listings of his publications,
speeches, awards, etc. See GOOGLE “Dean
Straw – N6BV”)
“Top band: TOP
HAT”, ON4UN’s Low-Band Dxing. ARRL
(Review. 73 Magazine)
“2 Meter
Hentenna”. Ham Universe
“The ARRL
Antenna Book”. (R. Dean Straw, Editor). ARRL
“The
Well-behaved antenna”. AntennaEx
“One Stealthy
Delta”. SGCWorld
“The ARRL
Handbook”. (R. Dean Straw, Editor) ARRL
(Many-many more
at GOOGLE)
There will be an
advance charge of $19 for all four workshops plus a catered lunch. An “at the door” charge will be $24 for all
four workshops plus lunch. See snail
mail registration form at the end of this newsletter. Last day to receive advance registration will be June 13. The
workshop fee will be used exclusively for Dean’s air-travel to Alaska. All other expenses will be paid for by Dean.
“HOPEFULLY”, MORE LEO MEETINGS THIS
WINTER-SPRING.
During February or early March
We are in hopes of having Dale – KL7XJ
chairing a panel of our
AMSAT reps Dan-KL7DR and ED-AL7EB
on
“Everything and maybe more than you need
to know about the new, old and ‘born again’ LEO satellites”
First AO-14 and then AO-40 were lost to us and a long dry
period seemed to be ahead but not the case with AO-51, SO-50, FO-29, AO-27,
AO-7 and maybe others who are operational and giving all hams regardless of
license or sophistication of equipment a chance to get on the LEO
satellites. Dale, Dan and Ed are our
top-notch LEO experts, and they will tell you everything you ever needed to
know about getting on these great little
birds. And, if Dan can make it, he will
help you enter the LEO satellite frequencies on your “handhelds”. This meeting will be subject to travel plans.
(As per custom meeting will be held at
local restaurant with lunch on your own and no charge for the program.)
And
During
May or this summer
We
are hopeful that Yale University will cooperate in letting us have the
Internationally respected and honored
expert of
NANO TECHNOLOGY
LAFE SPIETZ OF YALE UNIVERSITY
(Recently published in Science
Magazine and many other top notch scientific journals and other publications)
Some of the many articles authored
and/or co-authored by Lafe:
“Primary Electronic Thermometry Using
the Shot Noise of a Tunnel…” Science
“Thermoter Uses Quantum Mechanics…” Yale
Daily News
“Noise Performance of the
Radio-Frequency Single Electron…”
JAPIAU
…many more on GOOGLE.
(A full bio will be included as soon as
we have his travel plans confirmed)
And
Following
Lafe that afternoon will be our own antenna master
KL7AR – MIKE
On
SWR: Fact, fiction or mythology
(As per custom meeting will be held at
local restaurant with lunch on your own and no charge for the program)
The
LEO Weather and Road Report Net.
M-F, 9 AM+. 147.27/87 @103.5 tone.
THANKYOU
· KL7XJ – Dale for his great talk on the Challenger Learning
Center
· KL7FH – Frank for a wonderful presentation on contesting.
· Thanks for the
147.27/87 machine. We appreciate all
the work, dedication and money spent.
WEB
SITES of interest to LEO’s (a new
column) by KL7XJ – Dale. If you have an
interesting web site for Dale to use, please send it to daleh@alaska.net
Tips that may
help you…And some neat links to sites on the internet. Want to get your signal out and be heard?
Then start with your antenna and work back to the radio. You need an antenna resonant for the bands
you want to operate on. Good connectors
and low loss feed line are very important as well as good grounding. Here are some links to sites that may be of
some help to those of you interested.
COAX line loss
calculations: http://www.ocarc.ca/coax.htm
EIRP calculations and more: http://www.csgnetwork.com/antennaecalc.html
A neat satellite tracking program that is a FREE download
can work in the background while you are working on other Programs. You can also download the Keps on this. It is called Sat_Explorer and the Sat_Explorer.free download programs at: http://perso.club-internet.fr/florl/satexG.htm
Previously mentioned
web sites:
http://gahleos.obarr.net - Great LEO site by KL7DR-Dan with updated
LEO orbits and valuable WEB links.
http://issfanclub.com - For
ISS Ham communications.
http://www.seti.org -
Looking for our relatives way out there.
Other space,
astronomy, satellite and Ham satellite sites:
http://spaceflight.nasa.gov/realdata/tracking/index.html http://www.ac6v.com/software.html#SAT
http://www.qsl.net/kd2bd/predict.html http://www.onsat.com/links/
http://vkradio.com/sat.html http://www.astrosurf.com/avl/UK_index.html http://www.amsat.org.ar/
http://511.alaska.gov/ -
Important for winter traveling with live cameras on Alaskan highways.
Please send me
any WEB SITES that you think LEO’s would be interested in. Tx and 73.
Dale/XJ
ANTENNAS. A new column by Mike-KL7AR ( xtiger747@ak.net ).
Hams have many
and varied interests within the amateur radio hobby. But, when we transmit and/or receive a signal, the one thing that
unites all of us is the critical need for a properly designed antenna.
We often take that piece of wire or aluminum tubing for granted, but
what actually is the definition of an antenna?
The transmitter/
transceiver/generator sends an RF electromagnetic wave traveling up the feed
line. The wave is guided up the coax
with little loss. When this wave
reaches the end of the feed line, it begins to travel out on to the
antenna. The wave as it leaves the
antenna becomes spherical and it is radiated into free space. Or, we can say that the element where a
guided wave transitions to a free space wave is an antenna. Thus an antenna is a transducer or the
vehicle by which a guided wave is allowed to become a free space wave, or in
the opposite direction for receiving.
An example that
all of us would find familiar is that of our own is our own eyes. Our eyes
convert free space electromagnetic photons into circuit currents that are
transmitted to our brain. An antenna
operates in the same manner way. This
is just some basic electronic theory as I get ready to become more specific
with antenna designs in future columns.
LEO
ELMERS: GO TO GUYS and GIRLS: Please send yours in.
SATELLITES:
KL7DR/Dan at dan@obarr.net, AL7EB/Ed at al7eb@amsat.net and KL7XJ/Dale at daleh@alaska.net .
HF ANTENNAS:
KL7AR/Mike at xtiger747@ak.net
LEO’s out and about and in the
news
“Trapper Creek’s Hal and Nancy Morgan:
Hammin’ It Up”
Talkeetna
Times Newspaper, November 01, 2004
By
Jennah Choate
Before telephones, cell-phones, Internet, or
any easy reliable source of communication, there were ham radios. Not many people know about ham radios
anymore. There are still 25 licensed
ham radio operators in Trapper Creek and half a dozen in Talkeetna. Two of the
25 operators that live in Trapper Creek are Hal and Nancy Morgan.
The Morgan’s have been operating a ham radio
since 2000. Hal got his ham radio
license in 2000 and Nancy got hers in 2001.
“It comes in handy on a daily basis,” said Hal. Out in the bush there is not a lot of
reception so cell phones don’t usually work that well. Ham radios have been known to save lives on
occasion. They are much more reliable
than cell phones. If an earthquake
happened, cell phones would be completely knocked out. If a station was up, ham radios would still
be able to make contact. Maybe not to
the person you need to talk to, but someone who could pass the message on. Sometimes even a simple happy birthday is
passed on from one to another until the message has been delivered.
To become a licensed ham radio operator,
there are a series of tests you can take.
The first test is to be a “tech” ham radio operator. A tech ham radio operator is an operator who
doesn’t use Morse code and cannot use some higher class frequencies. When there is a true emergency, any licensed
operator can use a ham radio at any frequency and at any measure because it is
a “true emergency.”
In the 1970s, the ham radio became very
popular and many people in the “bush” and around the world owned one. They were almost entirely “home brew.”
A lot of the time, ham radios are used on the
Iditarod Trail quite often because they are so reliable. Sometimes a “phone patch” is used which is a
patch between a phone and a ham radio.
When Hal was monitoring the Iditarod once, he and Nancy used a phone
patch to communicate. Nancy talked on
the phone and Hal talked on the radio.
Ham
radios are mostly used by “bushrats” nowadays but they are still common and are
used for daily uses. Even though cell
phones have taken a lot away from ham radios, they can never completely replace
them. (Printed with permission of Hal Morgan and Jennah Choate)
etc….
UPDATE: Dan Simmonds/KK3AN, President of AN Wireless
Tower Co. of Johnstown, PA, a
friend of KL7AR/Mike and KL7QZ/John offered at Dayton this May to deliver an AN
Tower to anywhere on the Alaska “Rail Belt” for a substantial discount
in shipping cost and purchase price. He
can bring up to 3 towers at maximum of 60’ each (or less). It looks like Dan may have some takers
and if this is the case and you are interested in an AN Tower delivered this
summer, you may want to check with Dan. KL7AR/Mikes 60’ self-standing AN
Ham Tower was Dan’s first Ham tower before he went big time. This is an outstanding yet inexpensive
self-standing tower. Check with Dan at dan@anwireless.com and at website www.anwireless.com. Also, check with Mike/AR about his tower at xtiger747@ak.net.
New equipment reviews
TOKYO HI POWER –
HL-50B. This editor has been a
Ham for 50 years and has had dozens of pieces of Ham gear (many of which were
secretly slipped by my XYL) from my 1955 Heathkit AT-1, which I still have, to
my Swan 500c, which I also still have, to my current Kenwood TS-2000. Of all the equipment which I have today, I
find that the 160-70cm, 5 watt all mode, hand size Yaesu FT-817 is the
most incredible “pushing the envelope” piece of gear yet on the market. However, I am not writing about the 817 but
instead part of the cottage industry of many peripherals marketed to support the
817’s fantastic capabilities. One item
that I recently purchased is a 50w final amplifier specifically designed for
the 817. This Tokyo Hi Power HL-50B is
just a tad bigger than the 817, and without any bells and whistles to draw down
battery power on receive and with RF switching, you can go camping with a ½
size marine battery and be on the air for days without a battery charge. While changing out base station rigs, I ran
the 817 and HL-50B as Alaska-Pacific net control for 3 months as though I was running
a KW. Price is around $200-250
depending on the Yen. Check their web
sit and they will give you an email address for purchasing. They ship quick and easy.
The MFJ-902,
Travel Tuner. Since the 817 has such a
good SWR meter, ½ the size of the 817, the 902 works great, with a very smooth
response and is lightweight, small and inexpensive. And, in a pinch it can run the big rig with a limit of 150 watts.
PLEASE
Howaboutit--think about
sending in a technical article for this newsletter and/or present a paper at
one of our LEO get-togethers. What’s
this “presenting a paper”? Some years
ago this editor was at the FDIM or Four Days In May annual QRP meeting adjunct to
the Dayton Hamvention and was impressed with the requirement that when you are
a speaker, you put your remarks in writing to be sent out ahead of time, and
then the speaker can present the paper in a more casual or specific way
allowing for attendees to prepare some questions. This FDIM model is really just an offshoot of how technical and
scholarly presentations have been made for the last 100 years. We do it a bit more casually. When you come to speak, have prepared a
handout of your remarks written formally, or in short outline form or with just
data, tables, diagrams and Web citations or all of the above. Ideally, a
presentation should last no longer than 40 minutes leaving 10 minutes for
questions. Our only proviso is that presentations or newsletter articles
contain NO political comments whether it is about CW or Ralph Nader. Thx.
If you wish to
be on our email list, please send your address to KL7QZ at jbury@gci.net.
AO – 51, up, up and away!
73’s and 88’s to all Hams on our planet,
in our solar system-galaxy –universe.
Keep listening for the “WOW”.
Kenwood has posted a fix
for the TS-2000's PL problem that should allow the TS-2000 to
operate SO-50 and AO-51 in the “satellite mode”. This is a
firmware update that is supposed to allow PL tones to work in satellite mode: http://www.kenwood.com/i/products/info/amateur/software_download.html
Late Braking NEWS from Dan O’Barr, KL7DR
Advanced registration Form for June 18 antenna symposium
follows:
Must be
received by Monday, June 13. Name_____________________
Call______________ Email Address
_______________ Phone Number
______________ Address
____________________________ Zip _____ for the Dean Straw –
N6BV Antenna Symposium: Please reserve a seat for me All 4 workshops 9 AM -
4PM and lunch at $19.00 For lunch I want a: __ Meat sandwich (Example: turkey croissant) __ Vegetarian (Example: Caesar salad) __ Beverages: (Choose one for lunch) __ Coke/Pepsi __ Diet Coke/Diet Pepsi __ 7UP/Diet 7UP __ Root Beer/Diet Root Beer Any
or all of the below: __ Coffee – available all day __ DeCaf Coffee – available
all day __ Tea – available all day __ Decaf Tea – available all
day REFUND POLICY: A full refund will be given up to 9 PM Thursday, June
16, 2005. For cancellation notification from Thursday at 9 PM to 9 AM
Saturday, June 18th the full symposium fee less $7.50 for lunch
will be refunded. No refund after 9
AM, Saturday, June 18th. Please snail mail to
John Bury, 5142 Shorecrest Dr., Anchorage, AK 99502 Check only please. Make out to John Bury MUST BE
RECEIVED NO LATER THAN MONDAY, JUNE 13.