Yes, Rich, the article was very interesting. Your group is doing an awesome job
with so many youngsters.
John WA4WDL
Rich/wa4bue richard.s...@verizon.net wrote:
Thank you AMSAT for publishing the great artical about the K4AMG Club in the
AMSAT JOURNAL.
Happy New Year Everyone.
: Wednesday, November 06, 2013 5:19 PM
To: jmfranke
Cc: kk5do ; amsat-bb@AMSAT.Org
Subject: Re: [amsat-bb] Re: Keeping up with technology
While I can't vouch for checking in on Twitter or other social medias. I can
say I do respect the want to incorporate alternative and more publicly visible
AMSAT is only as good as its members. Everyone needs to ask themselves how
they have contributed; articles to the Journal, support at hamfests,
donations of time and money, etc.
John WA4WDL
--
From: wa4...@comcast.net
Sent: Sunday, February 10,
Awesome feat!
John WA4WDL
--
From: Mike Seguin N1JEZ n1...@burlingtontelecom.net
Sent: Saturday, November 10, 2012 8:03 AM
To: tan...@fit.ac.jp
Cc: amsat-bb@amsat.org; fits...@hotmail.co.jp
Subject: [amsat-bb] NIWAKA detected in VT on 5.84 GHz!
http://www.cq-vhf.com/vhf_highlights/2012_vhf/2012_spring_vhf/2012_spring_vhf_antennas.pdf
John WA4WDL
--
From: Joe Lowenthal wa4...@gmail.com
Sent: Tuesday, July 17, 2012 11:06 PM
To: amsat-bb@amsat.org
Subject: [amsat-bb] Herringbone Log
When you check, please note that some are LHCP and some are RHCP.
John
--
From: David 4X1DG 4x...@iarc.org
Sent: Sunday, May 13, 2012 12:30 PM
To: amsat-bb@amsat.org
Subject: [amsat-bb] Circular polarization
Is a UHF circular polarization
It was with a sad heart I learned of his passing. I was fortunate to have
been able to talk with Dick at several conferences and at his home in April
2007. He was quick to smile, always friendly, and eager to help newcomers.
He will be long remembered by many,
John WA4WDL
You will find that most handheld GPS receivers sold for casual use have a
displayed time error that varies from 0 to 4 seconds. The receiver software
was designed with an emphasis on computing position and performing other
tasks, such as routing, more than on displaying time. Hence the
The difference between GPS time and UTC is adjusted as necessary. The
adjustments come in the form of leap seconds and are added when needed at
the end of June or December. The difference between GPS time and UTC is
currently 15 seconds. There will be a leap second added this coming June 30.
To paraphrase Yoda in Star Wars:
Whine not. Do. Or do not. There is no whine.
John WA4WDL
--
Help if you want, don't if you don't.
Simple enough.
73, Armando N8IGJ
Well done! It is nice to see someone using a mixture of commercial and
homemade equipment to make useful measurements.
John WA4WDL
--
From: Roland Zurmely py4...@yahoo.com
Sent: Tuesday, October 18, 2011 3:27 PM
To: AMSAT amsat-bb@amsat.org
I would like to see it. I have a linear one from the US Navy. It has a
Mercator map with a transparent slide. You move the slide to the satellite
longitude position, find your position through the transparency, and then
read the elevation and azimuth angle from the slide markings.
John
There is also the issue that the commercial operator wants the Earth facing
side of the satellite for their antennas. It is hard to find room for
amateur band antennas. We ran into this problem while trying to get NASA
payloads a ride on commercial satellites.
John WA4WDL
One thought would be to copy and use the keps from any geostationary
satellite visible from your location. At least the Doppler would not be
shifting.
John WA4WDL
--
From: Ronald G. Parsons w5...@w5rkn.com
Sent: Saturday, August 27, 2011 4:21
With the speed reduction, the satellite drops to a lower orbit. The lower
the orbit, the less time it takes to go around the Earth, hence it passes
satellites in higher orbits.
John WA4WDL
--
From: Rich Dailey richdai...@windstream.net
Sent:
I think you will like the turnstile Moxon. I recently, last week, fabricated
one for receiving Russian navigation satellites on 149.940 to 150.030 MHz
and was very pleased. It replaces a commercial QFH I had in my attic. I used
3/4 wide aluminum straps for the elements, a 90 degree hybrid
Good thoughts! Echoes and elaborates on my email.
John WA4WDL
--
From: Edward R. Cole kl...@acsalaska.net
Sent: Friday, July 01, 2011 4:54 PM
To: amsat-bb@amsat.org
Subject: [amsat-bb] A Proposal for ARISS
After posting some thoughts a few days
Please take this somewhere else.
John WA4WDL
--
From: Nigel A. Gunn ni...@ngunn.net
Sent: Wednesday, June 29, 2011 5:25 PM
To: Ted k7trkra...@charter.net
Cc: amsat-bb@amsat.org; 'Gordon JC Pearce' gordon...@gjcp.net
Subject: [amsat-bb] Re: AMSAT
I also agree. We do not require the astronauts to be in the loop. We need
the communications port, particularly one that can be repaired or replaced
and can be reprogrammed from Earth. The astronauts are most assuredly
encouraged to participate. NASA can blank the output during critical times.
So if there are three stations operating, only two can make a contact
because the once two make contact with each other neither can contact the
third.
John WA4WDL
--
From: Tom Schaefer, NY4I n...@arrl.net
Sent: Monday, June 27, 2011 11:36 AM
To:
I agree that many people use too much power. But, remember it is not just
the output power that counts, it is also affected by the antenna gain. 10W
into a dipole is about the same in terms of effective radiated power as 1W
into a 12-13 dB gain Yagi.
John WA4WDL
Start at:
http://translate.google.com/translate?hl=ensl=ruu=http://www.cqham.ru/ao40_equip.htmei=mrGkTJHfOJDSsAO6ypT-Dgsa=Xoi=translatect=resultresnum=9ved=0CDwQ7gEwCDgKprev=/search%3Fq%3DCalamp%2B31732%26start%3D10%26hl%3Den%26sa%3DN%26prmd%3Div
John WA4WDL
You might want to check those numbers, I believe the second might be a
common model 130001 downconverter. I am working on an article showing how to
modify the local oscillator and to use the FB506 prescaler as part of a 10
Hz to 2.8 GHz frequency counter.
John WA4WDL
Or try:
http://www.cqham.ru/image2/cal-amp-dc_big.gif
John WA4WDL
--
From: jmfranke jmfra...@cox.net
Sent: Thursday, April 28, 2011 10:10 PM
To: i8cvs domenico.i8...@tin.it; Amsat - BBs amsat-bb@amsat.org;
Giulio P. AOL giulio...@aim.com
Subject
No problem here accessing NASA.com or
http://www.nasa.gov/multimedia/nasatv/index.html
John WA4WDL
--
From: wb7...@usfamily.net
Sent: Saturday, February 26, 2011 1:11 PM
To: amsat-bb@amsat.org
Subject: [amsat-bb] OT: NASA Website access?
Am I
Thanks for the assortment of modes and especially for the heads up!!
John WA4WDL
--
From: Mark L. Hammond marklhamm...@gmail.com
Sent: Thursday, February 24, 2011 3:00 PM
To: Amsat - BBs amsat-bb@amsat.org
Cc: ao51-mo...@amsat.org
Subject:
Our presence there is secondary and the prime user has a much larger
financial and national security commitment for keeping the band clear of
others. I hope the US military takes the appropriate actions to protect the
bands for their use and thereby ours.
John WA4WDL
It is the sixth satellite of the microsat series so is given the letter F
until orbit is achieved. The phonetic conversion for F is Fox as Echo was
for the fifth satellite or E.
John WA4WDL #10211
--
From: Clint Bradford clintbradf...@mac.com
Another part of the solution would be to operate AO-51 in V/S or L/S more
often.
John WA4WDL
--
From: WILLIAMS MICHAEL k9qho6...@sbcglobal.net
Sent: Tuesday, January 11, 2011 11:14 AM
To: amsat-bb@amsat.org
Subject: [amsat-bb] Re: Ao51 Protocol ?
Does anyone know the polarization of the 2.4 GHz transmissions from AO-51.
Are they circular? If so which polarity, RHCP or LHCP? Are they linear?
If so is there a preferred receiving polarization? I have examined the
AMSAT web site and many references on the Internet, but cannot seem to
Many thanks to all who responded. The additional references were great!
Thanks to all,
John WA4WDL
--
From: Alan P. Biddle apbid...@united.net
Sent: Tuesday, December 21, 2010 3:10 PM
To: 'jmfranke' jmfra...@cox.net; amsat-bb@amsat.org
Subject
For starters, take a look at:
http://ka6puw.tripod.com/azimuth1.html
John WA4WDL
--
From: Clint Bradford clintbradf...@mac.com
Sent: Monday, December 13, 2010 12:49 PM
To: AMSAT BB amsat-bb@amsat.org
Cc: ARISS-ops OPS ariss-...@amsat.org
Subject:
http://www.nasa.gov/directorates/somd/home/CubeSats_initiative.html
John WA4WDL
___
Sent via amsat...@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
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I agree, especially since China expressed the fact that they will be
orbiting a space station soon and rendezvous and docking is a necessary
technology. These are exciting times, more space projects and more orbiting
technology.
John WA4WDL
--
If it is not the ISS, the answer is YES.
John WA4WDL
--
From: jlv j...@fing.edu.uy
Sent: Saturday, March 06, 2010 5:04 PM
To: amsat-bb@amsat.org
Subject: [amsat-bb] help, LEO navigational question
Sorry...but..
I am thinking..
Does ITAR laws
apply restrictions in this topic for all the satellites in orbit?
I don't almost find any information of any satellite, of their systems of
position detection.
73..Luis
CX2AN
- Original Message -
From: jmfranke jmfra...@cox.net
To: jlv j...@fing.edu.uy; amsat-bb@amsat.org
Sent
I have both the RHCP and LHCP receiver versions, but with a house move, I
have not had the opportunity to test them.
John WA4WDL
--
From: Andrew Glasbrenner glasbren...@mindspring.com
Sent: Wednesday, December 30, 2009 1:14 PM
To: Jeff Kelly
One drawback of the design was the high drag from such a large structure,
coupled with the low mass. The end result was a satellite with a low
ballistic coefficient and hence a short lifetime.
John WA4WDL
--
From: Samudra Haque
Or go to:
http://www.usno.navy.mil/USNO/astronomical-applications/data-services/alt-az-us
enter your location and get the azimuth of the Sun for every 10 minutes so you
do not have to worry as much about clouds or trees, etc.
John WA4WDL
Daniel Schultz n8...@usa.net wrote:
To find
No he means FX.25:
From the Milcom/BTown blogs:
The communications board contains the transmitter and receiver. The
transmitter operates at 2 meters and can put out up to 1 watt of signal.
Power level is adjustable. The transmitter can operate at 1200 baud AFSK and
9600 baud FSK. The
I believe the waveguide is WR-75 which is rated for 10-15 GHz, but I also
believe the system will not move down to the 3cm amateur radio band without
serious modifications.
John WA4WDL
--
From: Luc Leblanc luclebla...@videotron.ca
Sent:
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