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1  eHam Forums / Satellites / RE: Just getting into HAM - purchased an Arrow-II 146/437-10WBP on: February 27, 2013, 07:44:12 PM
>> ...  I've never seen/heard anyone talk about checking SWR / Resonance on V/UHF ...

In my firsthand experience, this topic is a case of, "Hey, it works extraordinarily well, WHY put it on a meter?"

(grin)

You are experiencing the same phenomenon, I am sure (assuming the antenna is properly assembled, and the coax
and diplexer are fine). Using a "lesser" antenna, you can find a station/repeater that't just "on the edge" of being able to work.
But switch to the Arrow, and you can turn down the power output to successfully work it.

The numbers are out there as far as test measurements are concerned. ut it just WORKS!

Clint Bradford K6LCS
http://www.work-sat.com
909-241-7666 - cell
2  eHam Forums / Satellites / Fox-1B Chosen by NASA - a GO - Hopefully in 2014 on: February 27, 2013, 07:39:22 PM
AMSAT's Tony AA2TX excitedly reports:

"I am pleased to announce that our NASA ELaNa proposal for RadFxSat/Fox-1B has been accepted ... " AMSAT requested a launch in 2014.

Here is the NASA media advisory -

- - - - - - - - - - - - - - - - - - - - - - - - -

Joshua Buck
Headquarters, Washington                                       
202-358-1100
jbuck@nasa.gov
Feb. 26, 2013

RELEASE : 13-064


NASA Announces Fourth Round of CubeSat Space Mission Candidates


WASHINGTON -- NASA has selected 24 small satellites to fly as auxiliary payloads aboard rockets planned to launch in 2014, 2015 and 2016. The proposed CubeSats come from universities across the country, a Florida high school, several non-profit organizations and NASA field centers.

CubeSats belong to a class of research spacecraft called nanosatellites. The cube-shaped satellites measure about 4 inches on each side, have a volume of about 1 quart, and weigh less than 3 pounds.

The selections are from the fourth round of the CubeSat Launch Initiative. After launch, the satellites will conduct technology demonstrations, educational research or science missions. The selected CubeSats will be eligible for flight after final negotiations and an opportunity for flight becomes available.

The following organizations submitted winning satellite proposals:

-- The Aerospace Corporation, El Segundo, Calif.
-- The Discovery Museum and Planetarium, Bridgeport, Conn.
-- Embry-Riddle Aeronautical University, Prescott, Ariz.
-- Morehead State University, Morehead, Ky., in partnership with the University of California at Berkeley
-- Montana State University, Bozeman (2 CubeSats) in partnership with The University of New Hampshire, Durham
-- Merritt Island High School, Florida, in partnership with California Polytechnic State University, San Luis Obispo
-- NASA's Ames Research Center, Moffett Field, Calif.
-- NASA's Goddard Space Flight Center, Greenbelt, Md. (3 CubeSats)
-- NASA's Jet Propulsion Laboratory, Pasadena, Calif., in partnership with the California Institute of Technology, Pasadena (3 CubeSats)
-- NASA's Kennedy Space Center, Florida
-- Pennsylvania State University, in partnership with the Naval Research Laboratory, Monterey, Calif., and the Aerospace Corporation, El Segundo, Calif.
-- Saint Louis University, St. Louis
-- Tyvak Nano-Satellites Systems, Irvine, Calif., in partnership with the California Polytechnic State University, San Luis Obispo
-- University at Buffalo, The State University of New York
-- University of Colorado, Boulder
-- University of Florida, Gainesville, in partnership with Stanford University
-- University of Maryland, Baltimore County
-- University of Texas, Austin
-- Vanderbilt University, Nashville, Tenn., in partnership with the Radio Amateur Satellite Corporation, Silver Spring, Md.

In the three previous rounds of the CubeSat initiative, NASA has selected 63 missions for flight. The agency's Launch Services Program Educational Launch of Nanosatellite (ELaNa) Program has launched 12 CubeSat missions. This year, 22 CubeSat missions are scheduled for flight.

For additional information on NASA's CubeSat Launch Initiative program, visit:

http://go.nasa.gov/nXOuPI


For information about NASA and agency programs, visit:

http://www.nasa.gov


- end -

- - - - - - - - - - - - - - - - - - - - - -


3  eHam Forums / Satellites / RE: Arrow-II 146/437-10WBP : test data on: November 04, 2012, 09:13:35 AM
>> ... berating me in SAT blogs ...

I don't remember ever seeing you in any blog anywhere. Whatever.

I am not sorry to report on my first-hand experiences and observations over the years with Arrow antennas. You seem to have received one with a problematic part - which you ID'd and Arrow immediately fixed/replaced for you. That only re-confirms my experience with Arrow: that they are responsive and care about their products.

And for those who are considering purchasing an Arrow satellite antenna, I would recommend that they set it up and perform no modifications to it, and get to know its performance right out of the packaging. There are no widespread problems with the units. And I daresay the vast majority of owners will be delighted with its 2M/440 performance.

Clint Bradford K6LCS
909-241-7666

4  eHam Forums / Satellites / RE: Arrow-II 146/437-10WBP : test data on: November 02, 2012, 06:46:17 PM
>> ... The proper dimension (per manual/spec) works better and provides an overall
improvement to both 2m & 70cm VSWR. When looking at each antenna as a
mono-bander all looks very good ...

I am amused at how folks feel compelled to "improve" what already works excellently out of the box - er, I mean, "bag."

(grin)

If you purchase an Arrow satellite antenna, please know that it works splendidly - with NO modifications. There are thousands in the field, with that many pleased owners. I couldn't ask for better performance from my eight-year-old Arrow - the one I have used in front of scores of audiences the past few years.

And so it goes ...

Clint K6LCS
909-241-7666
5  eHam Forums / Satellites / RE: New NASA Service: Spot the ISS on: November 02, 2012, 06:41:52 PM
An awesome sight, indeed!

I have a photo/screensaver of a night shot of the Parkes antenna, with two "streaks" in the heavens: the ISS and a shuttle a couple minutes behind. i think I snagged it from NASA's sight. It still amazes me ...

Clint K6LCS

6  eHam Forums / Satellites / New NASA Service: Spot the ISS on: November 02, 2012, 09:33:17 AM
SPOT THE SPACE STATION OVER YOUR BACKYARD WITH NEW NASA SERVICE

WASHINGTON -- On the 12th anniversary of crews continuously living and
working aboard the International Space Station, NASA announced Friday
a new service to help people see the orbiting laboratory when it
passes overhead. "Spot the Station" will send an email or text
message to those who sign up for the service a few hours before they
will be able to see the space station.

"It's really remarkable to see the space station fly overhead and to
realize humans built an orbital complex that can be spotted from
Earth by almost anyone looking up at just the right moment," said
William Gerstenmaier, NASA's associate administrator for human
exploration and operations. "We're accomplishing science on the space
station that is helping to improve life on Earth and paving the way
for future exploration of deep space."

When the space station is visible -- typically at dawn and dusk -- it
is the brightest object in the night sky, other than the moon. On a
clear night, the station is visible as a fast moving point of light,
similar in size and brightness to the planet Venus. "Spot the
Station" users will have the options to receive alerts about morning,
evening or both types of sightings.

The International Space Station's trajectory passes over more than 90
percent of Earth's population. The service is designed to only notify
users of passes that are high enough in the sky to be easily visible
over trees, buildings and other objects on the horizon. NASA's
Johnson Space Center calculates the sighting information several
times a week for more than 4,600 locations worldwide, all of which
are available on "Spot the Station."

Nov. 2 marks 12 years of continuous human habitation of the space
station.

To sign up for "Spot the Station," visit:

http://spotthestation.nasa.gov

For information about the International Space Station and a full list
of sightings, visit:

http://www.nasa.gov/station

   
-end-
7  eHam Forums / Satellites / RE: AO-27 Restoration on: October 22, 2012, 01:46:50 PM
Still problems with the bird, per the control team. Please do NOT transmit unless you definitely hear its downlink.

Clint K6LCS
8  eHam Forums / Satellites / RE: AO-27 Restoration on: October 16, 2012, 02:00:55 PM
AO-27 may be restored by the weekend, according to the control team.

Stay tuned!

Clint K6LCS
9  eHam Forums / Satellites / AO-27 Restoration on: October 08, 2012, 07:52:50 PM
While the control team tries to resurrect AO-27, please DO NOT TRANSMIT TO IT if you can't hear the bird in Analogue mode.

Clint K6LCS
(from the control team - 10/08/2012)
10  eHam Forums / Misc / RE: Kenwood TM-D710A Lockup on: October 07, 2012, 10:48:12 AM
See if Don Arnold can assist you with this ... I believe he knows your radio model well ...

http://www.geosat.us/

Clint K6LCS
909-241-7666
11  eHam Forums / Satellites / AO-27 Problems on: October 06, 2012, 12:47:31 PM
AO-27 is having some operational problems. Please report your passes to ...

http://oscar.dcarr.org/

Clint K6LCS
http://www.work-sat.com
12  eHam Forums / Misc / RE: Storing Radio Operating Manauls on an Android Tablet on: September 26, 2012, 01:06:54 PM
Manuals are loaded onto my Kobo and Kindle eReaders and Fire ...

I also have a bunch of my one-page cheat sheets loaded and ready to view, too. On the DOCS page at ...

http://www.k6lcs.com

... I have one-page .pdf cheat sheets for ...

KENWOOD Cheat Sheets
One-page programming guides for the TH-G71A, TH-F6A, TM-271A, TM-G707A, TH-D7A, TH-K2AT, and TM-D700. (106 kb .pdf)

ICOM HT Cheat Sheets
One-page programming guides for the IC-R20, IC-T2H, IC-T7H, IC-T81A, IC-T90, IC-V8, IC-U82, IC-V82, IC-W2, IC-W32, IC-Z1A. (631 kb .pdf)

ICOM Mobile Cheat Sheets
One-page programming guides for the IC-207H, IC-208H, IC-706, IC-706MKII, IC-706MKIIG, IC-910, IC-2100, IC-2720, IC-V8000. (590 kb .pdf)


Clint K6LCS
 
13  eHam Forums / Satellites / RE: Receiver recommendations for Satellite work on: September 25, 2012, 06:19:46 PM
>> ... a few recommendations of HT's and mobiles that can give me great features for working sats ...

Well, remember we're working AO-27 and SO-50 with a Watt or two ... so "power" isn't really a factor for working the FM "easy birds."

Improve the antenna on a dual-band HT that can be programmed in "split frequency" mode (where in one memory you can TX on 2M and RX on 440 - like the Yaesu FT-60R) - and you can successfully work the FM sats.

Being able to monitor the downlinks as you key your mic - true, full-duplex - is preferred. But not mandatory. Use a scanner for RX ... or a second HT to work full-duplex.

Complete details at ...

http://www.work-sat.com

14  eHam Forums / Satellites / RE: FM Birds question on: September 25, 2012, 06:16:03 PM
Neither firm makes a true duplex radio - but improve almost any HT's stock antenna, and you can work SO-50, AO-27, and the ISS. Best to be able to simultaneously receive as you transmit (second radio ... scanner ... ) - but not mandatory.

Complete details at ...

http://www.work-sat.com

15  eHam Forums / Elmers / RE: 2008 v 2012 arrl handbook...is there much difference? on: September 22, 2012, 02:46:52 PM
Get the new one, and donate the old one to your local junior high school's ham club - or local library!

Clint Bradford K6LCS
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