| |
CX2SA > SATDIG 06.04.14 21:03l 805 Lines 25929 Bytes #999 (0) @ WW
BID : AMSATBB9125
Read: GUEST
Subj: AMSAT-BB-digest V9 125
Path: IZ3LSV<IK2XDE<ON4HU<CX2ACB<CX2SA
Sent: 140406/1902Z @:CX2SA.SAL.URY.SA #:4952 [Salto] FBB7.00e $:AMSATBB9125
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. VUCC Satellite #248 (Paul Stoetzer)
2. Re: AMSAT pass prediction page. (Bryce Salmi)
3. Balloon launch SUnday Southern PA (Robert Bruninga)
4. Re: CO6CBF/p EL93, 82, 81, 72 and 71 (Wyatt Dirks)
5. Re: CO6CBF/p EL93, 82, 81, 72 and 71 (Paul Stoetzer)
6. ANS-096 AMSAT News Service Weekly Bulletins (Lee McLamb)
7. W1AW/4 VA (Rich/wa4bue)
8. Re: AO-73 Doppler (Chris Thompson)
----------------------------------------------------------------------
Message: 1
Date: Sat, 5 Apr 2014 15:30:14 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] VUCC Satellite #248
Message-ID:
<CABzOSOprASBfbra0+eN7zPjXKCFOfRMyO-MvBeUmvG=nqfaW1w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Good afternoon,
Today I received VUCC Satellite certificate #248, dated March 26,
2014. Thanks to all for the QSOs and QSLs. Special thanks to those
I've worked in multiple grid squares.
Although I had made a handful of QSOs previously, my serious satellite
operating started on August 21st of last year. On January 23rd, I
received the QSL card for my 100th grid and my cards were checked on
February 24th.
All of my satellite operating is done portable in the courtyard and
parking lot area of my apartment building about a mile southwest of
the U. S. Capitol. My uplink transmitter is a FT-817ND and I've used a
Kenwood TH-F6A HT, a Icom IC-R10 handheld receiver, and now use a
FT-817 with blown finals as the downlink receiver. I've used both
Arrow and Elk antennas and have now settled on the Elk.
Operating portable through this brutal winter has been fun! I've been
outside early in the morning to work OH2FQV on FO-29 with negative
wind chills and I remember going out for a 3:30am pass of AO-7 to work
UT1FG/MM out in the Atlantic where it was 25 degrees with 25 mph
winds.
I look forward to continuing the chase and increasing my totals. As of
this morning, I am at 233 grids worked and 128 confirmed.
Thanks again, 73, and see you on the birds!
Paul Stoetzer, N8HM
Washington, DC (FM18lv)
------------------------------
Message: 2
Date: Sat, 5 Apr 2014 12:36:56 -0700
From: Bryce Salmi <bstguitarist@xxxxx.xxx>
To: Tom Schuessler <tjschuessler@xxxxxxx.xxx>
Cc: AmsatBB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT pass prediction page.
Message-ID:
<CAN5j0spyiT5pnRxA+vOy=C6DXQdwCq5OBHekNi7se2E-0S2nnA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Tom,
Your point is definitely noted and AMSAT-IT volunteers have been trying to
figure out a fix. We have a few in mind but in the end it comes down to is
there a volunteer willing to do it and do they have the experience
necessary with web programming? Brent and I helped last Summer with our web
experience to get the Wordpress site up. Most people helping are fairly
knowledgeable with Wordpress basics and the site continues to function.
Could there be improvements? Yes. I'd love to see more formatting in the
content as it is let alone features like predict being updated.
Brent and I moved on to help with the Fox-1 project since the Website was
stable. With Tony's passing, it's even more critical we focus on Fox-1. I
know I am reiterating what's been said here many times but AMSAT is
completely dependent on volunteers and especially volunteers with specific
skill-sets such as website design. This is a great example of it. If you
are or know of someone who would be enthusiastic about this portion of the
website and knows some HTML, PHP, CSS, and Python/C programming then by all
means direct them to the Volunteer for
AMSAT<http://ww2.amsat.org/?page_id=1096>page.
Bryce Salmi
KB1LQC
On Sat, Apr 5, 2014 at 10:48 AM, Tom Schuessler
<tjschuessler@xxxxxxx.xxx>wrote:
> I asked this question maybe a year ago at a point after the rehab of the
> hacked AMSAT web site but now that sufficient time has elapsed I feel as
> one
> who wants to promote AMSAT and Amateur Radio Satellite activities, I have
> to
> bring up again.
>
> There are still, this far down the path issues with the AMSAT Pass
> prediction page that need to be addressed. First one should be easy. The
> pass prediction page was resurrected by reusing old code and linking to it
> from the new WordPress main page all well and good. Problem is that all
> the
> links on the pass prediction page that should link back other parts of the
> site, including clicking on the banner picture at the top are broken and
> should be restored.
>
> Another concern is the actual satellite drop down list. The contents of
> which have not bee updated in a while save for the inclusion of AO-73 at
> the
> top. Ray Hoad, WA5QGD does a yeoman's job of keeping up with the orbital
> elements from various sources each week and sending out a great composit
> listing. Since I believe this distribution is the source for the data that
> does the predictions for web users, it should be fairly easy to parse the
> list of two line elements and regenerate the drop down list on a weekly
> basis. As a newbie back in 2010 to the world of Amateur Radio satellites,
> I
> used the on-line prediction tool quite often and think that it needs to be
> considered as an important part of our promotion efforts. Thus it needs to
> be current.
>
> Lest you all think I am just ragging at our AMSAT NA web guys for not being
> current. I found it interesting to find that on the AMSAT-UK web site,
> they
> have a page that is a listing of dopler.SQF values for use in SatPC32.
> Cool
> I thought, guidance from the source on FunCube frequencies for use in this
> wonderful tracking program. Go to
> http://amsat-uk.org/satellites/doppler-sqf-2/ and see if I am mistaken
> but I
> bet you will not find either AO-73 or FunCube-1 listed in the file.
>
> 73 to all
>
> Tom Schuessler
> 2713 Lake Gardens Drive
> Irving, Texas 75060
> 972-986-7456
> 214-403-1464 (Cell)
> n5hyp@xxxx.xxx
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 3
Date: Sat, 5 Apr 2014 18:09:10 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: aprssig@xxxx.xxxx aprs@xxxxxxxxxxx.xxx
Cc: amsat-bb@xxxxx.xxxx kang@xxxx.xxx
Subject: [amsat-bb] Balloon launch SUnday Southern PA
Message-ID: <fed15644a55fbc7d12f5574d2414b0e8@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Balloon chase Sunday morning, Southern PA:
Should hear it over all Midatantic states!
Our balloon will be launched near Chambersburg, PA 9 AM? and will fly
across southern PA landing somehwehre near Newark, DE.
It will fly faster than the launch team, so we hope other hams will get to
the recovery site before we do and catch it on the way down.
But when you find it, leave it be, so our students can recvover it.
Balloon is W3ADO-11 and will switch to CRASH symbol when near the ground
and using WIDE1-1 path. Will use no path at higher altitudes.
Will be on 144.39
Our repeater list is as follows:
100 Chambersburg 443.700+ tone 131
101 Haggerstown 442.650+ tone 79
102 Gettysburg 443.100+ tone 103
103 Frederick 442.800+ tone 97
104 Lancaster 449.275- tone 114
105 449.575- tone 114
106 York 447.275- tone 123
107 Parksburg 442.000+ tone 94
108 Newark DE 449.025- tone 131
109 simplex 446.000
110 Annapolis 444.400+ tone 107
APRS 144.39 (on left side of radio)
Bob, WB4APR
------------------------------
Message: 4
Date: Sat, 5 Apr 2014 18:12:21 -0500
From: Wyatt Dirks <wyattdirks@xxx.xxx>
To: "Hector, CO6CBF" <co6cbf@xxxxxx.xx.xx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: CO6CBF/p EL93, 82, 81, 72 and 71
Message-ID: <BAY179-W6476948335D9DD889C844CCD6E0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Thanks to Hector for the four new grids as I just worked him on so50 from
el71. Also thanks for sharing that you were going to be portable here on the
amsat-bb.
Look forward to seeing more portable operations as the weather gets better. hi
73 Wyatt
AC0RA
> From: co6cbf@xxxxxx.xx.xx
> To: amsat-bb@xxxxx.xxx
> Date: Thu, 3 Apr 2014 00:24:27 -0400
> Subject: [amsat-bb] CO6CBF/p EL93, 82, 81, 72 and 71
>
> Hello guys!
>
>
>
> I will be in a quick grid trip vacation to the Western part of my country. I
> plan to operate from some rare grids, as last year.
>
>
>
> All my efforts will be focused in EL81. Last year, I was not able to reach
> the coast to operate from EL81ax. It is the only portion of that grid which
> is on the big island.
>
>
>
> We have a tentative plan but it is not sure, everything depends of
> transportation. If everything is OK, We will be leaving Cienfuegos (EL92)
> very early on April 3rd ; we hope to be in EL93 for the evening passes. On
> Friday 4th , we will continue trip to EL82, 81, 72 and 71. We plan to be on
> that area until Monday morning.
>
>
>
> It is our plan but it may change. We won't have email capabilities during
> the trip. I will try to do some updates on the air. Operation will be on all
> Sat except AO-7.
>
>
>
> See you on the birds!
>
>
>
> 73!
>
>
>
> Hector, CO6CBF / KF5YXV
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Sat, 5 Apr 2014 19:45:12 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: Wyatt Dirks <wyattdirks@xxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: CO6CBF/p EL93, 82, 81, 72 and 71
Message-ID:
<CABzOSOp7MT0Bqf2Qnxw173EyPgDr=jRdxv9ww4X8tTwJDRZCpw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
I second this. Thanks for four new ones, Hector!
And a belated thanks to Wyatt for 42 (!) new ones the other week!
Maybe I'll head somewhere this summer and put a couple of grids on the air!
73,
Paul, N8HM
On Sat, Apr 5, 2014 at 7:12 PM, Wyatt Dirks <wyattdirks@xxx.xxx> wrote:
> Thanks to Hector for the four new grids as I just worked him on so50 from
el71. Also thanks for sharing that you were going to be portable here on the
amsat-bb.
>
> Look forward to seeing more portable operations as the weather gets
better. hi
>
> 73 Wyatt
> AC0RA
>
>> From: co6cbf@xxxxxx.xx.xx
>> To: amsat-bb@xxxxx.xxx
>> Date: Thu, 3 Apr 2014 00:24:27 -0400
>> Subject: [amsat-bb] CO6CBF/p EL93, 82, 81, 72 and 71
>>
>> Hello guys!
>>
>>
>>
>> I will be in a quick grid trip vacation to the Western part of my
country. I
>> plan to operate from some rare grids, as last year.
>>
>>
>>
>> All my efforts will be focused in EL81. Last year, I was not able to reach
>> the coast to operate from EL81ax. It is the only portion of that grid which
>> is on the big island.
>>
>>
>>
>> We have a tentative plan but it is not sure, everything depends of
>> transportation. If everything is OK, We will be leaving Cienfuegos (EL92)
>> very early on April 3rd ; we hope to be in EL93 for the evening passes. On
>> Friday 4th , we will continue trip to EL82, 81, 72 and 71. We plan to be on
>> that area until Monday morning.
>>
>>
>>
>> It is our plan but it may change. We won't have email capabilities during
>> the trip. I will try to do some updates on the air. Operation will be on
all
>> Sat except AO-7.
>>
>>
>>
>> See you on the birds!
>>
>>
>>
>> 73!
>>
>>
>>
>> Hector, CO6CBF / KF5YXV
>>
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Sat, 05 Apr 2014 19:26:38 -0500
From: Lee McLamb <ku4os@xxx.xx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] ANS-096 AMSAT News Service Weekly Bulletins
Message-ID: <49.2F.17312.14F90435@xxxxxxxxxxxxx.xxxx.xx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
AMSAT NEWS SERVICE
ANS-096
The AMSAT News Service bulletins are a free, weekly news and infor-
mation service of AMSAT North America, The Radio Amateur Satellite
Corporation. ANS publishes news related to Amateur Radio in Space
including reports on the activities of a worldwide group of Amateur
Radio operators who share an active interest in designing, building,
launching and communicating through analog and digital Amateur Radio
satellites.
The news feed on http://www.amsat.org publishes news of Amateur
Radio in Space as soon as our volunteers can post it.
Please send any amateur satellite news or reports to:
ans-editor at amsat.org.
In this edition:
* Memorial Service for Anthony "Tony" J. Monteiro, AA2TX (SK) Scheduled
* W1AW/4 VA Young Operator Award
* Dayton Hotel Reservations
* Jerry Buxton, N0JY selected as AMSAT's VP-Engineering
* Steve Coy, K8UD joins the AMSAT-NA Board of Directors
* ARTSAT Project INVADER satellite Receives an OSCAR Number
* AMSAT Awards
SB SAT @ AMSAT $ANS-096.01
ANS-082 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 096.01
From AMSAT HQ SILVER SPRING, MD.
April 6, 2014
To All RADIO AMATEURS
BID: $ANS-096.01
Memorial Service for Anthony "Tony" J. Monteiro, AA2TX (SK) Scheduled
AMSAT has been received word from the family of Tony Monteiro, AA2TX that a
service for Tony will be held on Saturday, April 26th at 4:00 PM at the North
Parish of North Andover Unitarian Universalist Church, 190 Academy Road, North
Andover, MA 01845. During the service there will be an opportunities
for people
to share their "Tony stories". For individuals wishing to share their stories
via e-mail, they should be sent to remembertony2014@xxxxx.xxx They
will be read
at the service.
AMSAT VP-Engineering and BoD member Tony Monteiro of North Andover, MA passed
away on March 26, 2014 at age 55 from cancer. A special ANS Bulletin was
released on March 28th which alerted amateurs around the world of Tony's
passing.
[ANS thanks Martha at the AMSAT Office for the above information]
---------------------------------------------------------------------
W1AW/4 VA Young Operator Award
When the W1AW/4 VA operates the birds on April 8, 10. and 11, K4AMG
will offer a special certificate four young ham radio operators 19 and
under.
This certificate will be free. To qualify for this certificate just
send your QSL card to:
W1AW/4 VA / K4AMG Memorial Amateur Radio Club
721 Wood Duck Lane
Chesapeake, VA 23323
Contact info will be W1AW/4 VA K4AMG.
If you want you may email your picture operating your SAT station for
the K4AMG.org home page
This is a free bonus for young hams. We will be honored to send you
this free certificate prepared by our WEB MASTER WA9KFB.
To receive your W1AW/4 VA credit in the ARRL 100th Celebration follow
the standard ARRL procedures.
[ANS thanks Rich, W4BUE, for the above information]
---------------------------------------------------------------------
Dayton Hotel Reservations
This year, AMSAT has reserved a block of rooms for the Dayton Hamvention at
the
Fairborn Country Inns and Suites at a special group rate. These rooms will be
handled through the AMSAT office, rather then directly with the hotel.
Preference will be given to those volunteering for a significant time for the
AMSAT Booth operations.
While the cutoff date for group rate reservations is April 24th, 2014, most of
the rooms in our block have already been taken. If you want a room at the
special AMSAT rate, call Martha ASAP (As Soon As Possible)!
The hotel is conveniently located, with a good light breakfast. Many of the
AMSAT officers and others who are active in AMSAT will be staying
there. You can
catch up on old friendships, and bend people's ear. It is also a
great place to
catch a ride to and from the Hara Arena and other venues from those who have
driven or rented vehicles.
Please CALL the office to give Martha your name and credit card number. From
the US call toll free at (888) 322-6728. From all other locations call (301)
589-6062.
[ANS thanks Steve, N9IP, for the above information]
---------------------------------------------------------------------
Jerry Buxton, N0JY selected as AMSAT's VP-Engineering
In a special AMSAT Board of Directors meeting held via GoToMeeting on Tuesday,
April 1st, the board unanimously approved the selection of Jerry
Buxton, N0JY of
Granbury, TX as AMSAT VP-Engineering. Jerry replaces Tony Monteiro, AA2TX who
passed away on March 26th.
Given the significance of completing Fox-1 for delivery on time later
this year,
the Board recognized that the Fox Program must continue under
leadership that is
focused on completing AMSAT's latest satellite. Selecting a new
VP-Engineering
is an important step towards maintaining the momentum that was developed under
Tony's leadership and to avoid creating an engineering leadership vacuum as
work continues on the satellite. The Engineering Team deserves to have the
new
leadership identified in order to be in position to make the appropriate
engineering decisions.
AMSAT President Barry Baines, WD4ASW notes, "Jerry is well qualified to become
our new VP-Engineering. His overall knowledge of the Fox-1 program as Systems
Engineer under Tony Monteiro coupled with his professional experience in
managing complex technical projects will put AMSAT's engineering programs in
good hands. Just as important, his management experience and ability to lead
engineering teams is critical as our volunteers work hard to deliver the
satellite to Cal Poly later this year."
Jerry has been involved with the AMSAT Fox-1 Project as Systems Engineer since
September 2011. Recently retired following a 39 year career with Burlington
Northern Santa Fe (BNSF) Railway, he spent the last 13 years of his career
working with the railroad's train dispatching systems. These systems are used
to control train traffic over approximately 32,000 miles of track, in a manner
similar to air traffic control. Jerry served as project manager as well as
participating in the design and development of safety-critical train
routing and
movement instruction systems, and positive train separation technology. He
successfully implemented several mission critical systems in his role as
Senior
Manager, Network Control Systems and was awarded "Employee of the Year" along
with others involved in the Train Management and Dispatch System Project, in
2006.
Jerry became involved in amateur radio satellites with AO-7 and joined AMSAT
in
April 1983. He currently holds an Extra Class License and is also
licensed in
Colombia, S.A. as HK5JY. An active amateur, Jerry was number 3 in
the world for
the number of telemetry frames copied from ARISSat-1. He is also active on
terrestrial HF through 1.2 GHz.
"My promotion to Vice President, Engineering is both a humbling honor and a
great challenge", notes Jerry. "Tony did much of the work and built an
excellent Team of hard working volunteers to design and build AMSAT-NA's first
CubeSat. I have every confidence that the Fox-1 Team will complete and
deliver
a reliable satellite that will reflect well on Tony's legacy."
The March/April issue of AMSAT JOURNAL will have more information concerning
AMSAT's new VP-Engineering.
[ANS thanks AMSAT President Barry Baines, WD4ASW, for the above information]
---------------------------------------------------------------------
Steve Coy, K8UD joins the AMSAT-NA Board of Directors
Steve Coy, K8UD of Beavercreek, OH has assumed the seat on the AMSAT Board of
Directors formerly held by Tony Monteiro, AA2TX. Steve was originally
elected by
the AMSAT membership as a Board 'alternate' in the 2013 BoD election and will
hold a voting seat through the next BoD election that takes place later this
summer.
[ANS thanks Martha at the AMSAT Office for the above information]
---------------------------------------------------------------------
ARTSAT Project INVADER satellite Receives an OSCAR Number
The following was received from Bill Tynan, W3XO, AMSAT-NA OSCAR Number
Administrator.
The ARTSAT Project, INVADER satellite meets all of the qualifications
necessary
to receive an OSCAR number.
I therefore designate the ARTSAT Project INVADER satellite, Cubesat OSCAR-77
or
CO-77. Thus CO-77 joins
the earlier Japanese cubesats such as XI-IX(CO-57), XI-V(CO-58),
Cute-I(CO-55),
SEEDS-II(CO-66).
Congratulations to you and the entire ARTSAT team for the launch and
operation of Amateur Radio satellite, CO-77. May its mission be a
successful one.
[ANS thanks Bill, W3XO, for the above information]
---------------------------------------------------------------------
AMSAT Awards
The following have entered into the Satellite Communicators Club for making
their first satellite QSO.
Alan Ehrenberg, N9EDV
Benjamin Gaston, KV4RH
Scott Medbury, KD5FBA
Doug Birky, KB8M
Richard Manderski, W2SKI
Eric Stapleton, VA7TU
The following have earned the AMSAT Communications Achievement Award.
Richard Manderski, W2SKI, #562
The following have earned the South Africa Satellite Communications
Achievement
Award.
Richard Manderski, W2SKI, #US190
To see all the awards visit http://www.amsat.org or
http://www.amsatnet.com/awards.html
ANS thanks Bruce, KK5DO, for the above information]
In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining
donors to AMSAT Project Funds, will be eligible to receive addi-
tional benefits. Application forms are available from the AMSAT
Office.
Primary and secondary school students are eligible for membership
at one-half the standard yearly rate. Post-secondary school students
enrolled in at least half time status shall be eligible for the stu-
dent rate for a maximum of 6 post-secondary years in this status.
Contact Martha at the AMSAT Office for additional student membership
information.
73,
This week's ANS Editor,
Lee McLamb, KU4OS
ku4os at amsat dot org
------------------------------
Message: 7
Date: Sat, 05 Apr 2014 22:30:05 -0400
From: "Rich/wa4bue" <richard.siff@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] W1AW/4 VA
Message-ID: <0949A9FE80444CF7A5F3CD01E5EC7039@xxxxxxxxx>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
First we sent you an announcement of operation dates for W1AW/4 VA with a
typo.
We will be operating April 9 - 11. We will not operate on April 8.
Reviewing passes that we can operate + or - obstructions with our low
antenna and elevations these are the passes we believe we can work. Note
from our FM 16 elevation of our antennas usually require 10 degree.
For a list of Satellite Passes, please email richard.siff@xxxxxxx.xxx. I
will send you a word document the details. They will not attach on the BB.
On SO 50 maybe some one can turn the bird on for us. While once we set up
we have a great signal, but set up is difficult for us.
If you want to call on CW we will respond to you, but we mostly will answer
on SSB, unless the bird is quite.
We also ask you to email us at richard.siff@xxxxxxx.xxx your QSO
information, to assure we have no typo errors in our log. As you can see
mistakes happen.
Hope to work all of you.
God Bless
Rich
W4BUE
Pres K4AMG.org W1AW/4 VA
------------------------------
Message: 8
Date: Sat, 5 Apr 2014 23:02:30 -0400
From: Chris Thompson <chrisethompson@xxxxx.xxx>
To: Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx>, AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Re: AO-73 Doppler
Message-ID:
<CAJOf0+tLdW59fn9A2+RGpcB9LBdNx7e8cc8Ywj2T7MEwUvA8AA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
thanks Joe,
Someone else sent me a note off list to the same effect. It makes it hard
to track when using a narrow band receiver, such as a normal radio. I've
got the hang of it now, once I realized that the frequency would vary
depending on the temperature.
thanks
Chris
On Wed, Apr 2, 2014 at 5:12 PM, Joe Fitzgerald
<jfitzgerald@xxxx.xxx.xxx>wrote:
>
>
> > I notice that the frequency calculated by MacDoppler is slightly off from
> > the frequency that I hear the telemetry at.
>
> AO-73's transmit frequency drifts around as the spacecraft warms and
> cools. I remember being surprised to see the telemetry trace increase in
> frequency on my waterfall display when my receiver was at a fixed
> frequency. I initially thought something was wrong with the local
> oscillator in the radio, but my signal generator showed a nice straight
> vertical line.
>
> There is likely nothing wrong with your setup.
>
> -Joe KM1P
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
--
Chris E. Thompson
chrisethompson@xxxxx.xxx
g0kla@xxxx.xxx
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 9, Issue 125
****************************************
Read previous mail | Read next mail
| |
