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CX2SA > SATDIG 29.08.10 19:13l 910 Lines 29973 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Latest AMSAT Journal (Glen Zook)
2. Re: SO-50 (Bruce Semple)
3. Re: New Satellite Downlink? (David - KG4ZLB)
4. Re: New Satellite Downlink? (Tony Langdon)
5. WD9EWK on AO51 this afternoon with VX-8GR/long duckie
(Patrick STODDARD (WD9EWK/VA7EWK))
6. Re: Latest AMSAT Journal (Gary "Joe" Mayfield)
7. SO-50 (Matt Patterson)
8. Re: New Satellite Downlink? (Art McBride)
9. May/June Journal (Edward R. Cole)
10. It's Time to Register for the 2010 AMSAT Symposium
(JoAnne Maenpaa)
11. Exciting Symposium Papers and Presentations Rolling In
(JoAnne Maenpaa)
12. Symposium Poster Presentation & Demonstration Opportunity
(JoAnne Maenpaa)
13. Fw: Re: New Satellite Downlink? (Mark Spencer)
14. TAPR Trakbox Kit (Gary "Joe" Mayfield)
15. Re: New Satellite Downlink? (Gordon JC Pearce)
16. Reminder: AMSAT BOD Elections (Stuart Balanger)
----------------------------------------------------------------------
Message: 1
Date: Sat, 28 Aug 2010 12:30:48 -0700 (PDT)
From: Glen Zook <gzook@xxxxx.xxx>
Subject: [amsat-bb] Re: Latest AMSAT Journal
To: amsat-bb@xxxxx.xxxx "STeve Andre'" <andres@xxx.xxx>
Message-ID: <701414.89222.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
You know that it still costs only 3 cents to mail a letter (same charge that
was made during the Civil War). The remainder is for storage costs!
Glen, K9STH
Website: http://k9sth.com
------------------------------
Message: 2
Date: Sat, 28 Aug 2010 12:15:56 -0400
From: Bruce Semple <bruce.semple@xxxxxxx.xxx>
Subject: [amsat-bb] Re: SO-50
To: amsat-bb@xxxxx.xxx
Message-ID: <0L7V00FYHEIRXZ00@xxxxxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii; format=flowed
Dave -
Thanks for the reminder -
I forgot about the 74.4Hz "turn on" tone -
I had a quite pass last night -- I was hesitant to transmit until
I heard somebody on the downlink. Then I tried a test call (with
the 67hz on) - and
did not hear my downlink -- adding to the puzzle.
jesh - yet another "middle age moment"
At 08:31 PM 8/27/2010, Dobarrows wrote:
>Sometimes I have not heard SO-50 on late night passes. Then I key up
>my transmitter with a 74.4 hz tone. After that, I key my transmitter
>on and off with a 67hz tone while tuning the receiver set in cw mode
>until I find a carrier that goes on and off with my keying somewhere
>near where I expect the downlink to be. I then give my station ID and
>change the receive mode to fm. I know that SO-50 is alive and well.
>
>I don't know if it is well understood, but SO-50's downlink will only
>be on as long as there is a signal in the uplink with the 67hz tone on.
>You let up on the mike and the downlink ceases until someone else
>transmits. AO27 and AO51 have continuous carriers when turned on so
>they are easier to locate when there is little activity. (Little
>activity doesn't happen often here in North America on AO27 and AO51).
>
>73,
>Dave W8IJ
>
>_______________________________________________
>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, 28 Aug 2010 18:00:59 -0400
From: David - KG4ZLB <kg4zlb@xxxxx.xxx>
Subject: [amsat-bb] Re: New Satellite Downlink?
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4C79871B.3030306@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I would have to side with Nigel here as my understanding is that he is
quite correct - you are not allowed to listen into the Police
frequencies for instance or any other frequency that you are not
authorized for - maybe you can in Scotland Gordon :-P
As always, I am happy to be corrected though.
David
M0ZLB/KG4ZLB
On 8/28/2010 14:45, Gordon JC Pearce wrote:
> On Fri, 2010-08-27 at 23:40 +0000, Nigel Gunn G8IFF/W8IFF wrote:
> I don't know where you've been in Europe, but that would be perfectly
> legal in the UK.
>
> Gordon MM0YEQ
>
> _______________________________________________
> 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: 4
Date: Sun, 29 Aug 2010 08:34:22 +1000
From: Tony Langdon <vk3jed@xxxxx.xxx>
Subject: [amsat-bb] Re: New Satellite Downlink?
To: kg4zlb@xxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4c798efa.092d730a.53d5.7a2f@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 08:00 AM 8/29/2010, David - KG4ZLB wrote:
> I would have to side with Nigel here as my understanding is that he is
>quite correct - you are not allowed to listen into the Police
>frequencies for instance or any other frequency that you are not
>authorized for - maybe you can in Scotland Gordon :-P
Each country has its own rules. In Australia, you're allowed to
listen to anything sent in the clear, except for traffic covered by
the Telecommunications Act (i.e. phone calls). The Police were fair
game, until they switched to encrypted digital systems several years ago.
73 de VK3JED / VK3IRL
http://vkradio.com
------------------------------
Message: 5
Date: Sat, 28 Aug 2010 17:59:09 -0700 (PDT)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] WD9EWK on AO51 this afternoon with VX-8GR/long
duckie
To: amsat-bb@xxxxx.xxx
Message-ID: <120974.90540.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
On the AO-51 pass that just went by around 0012 UTC this afternoon,
I tried something I do with any HT I get - work satellites. I picked
up a Yaesu VX-8GR at Dayton 3 months ago, and have started using it
for APRS. Since it has two VFOs on it, I did not have to program any
memory channels to get it working for satellites. It is not a full-
duplex radio, but it can work. I use a Diamond SMA-BNC adapter on it
all the time (a well-designed adapter, which makes a secure physical
connection to the radio), and put a Diamond RH77CA 2m/70cm long duckie
on it. Since I did not have my Sony digital audio recorder with me, I
used a recorder app on my N900 phone, with the phone sitting in my
shirt pocket and the microphone hole pointing up. And I was doing this
on a west-facing balcony at my office in Scottsdale AZ (DM43al).
This pass was a nice one for Arizona, with maximum elevation at 64
degrees to the west. The footprint still covered a significant
chunk of North America. Once the satellite got up to about 25 to
30 degrees elevation, I could hear it easily with the squelch wide
open on the receive VFO. I made a few QSOs, including one with John
K8YSE still on his road trip. Thanks to everyone for the QSOs, and
thanks to John for all your work putting on a lot of rarely-heard
grids in that part of North America!
With this radio, I had to change from one VFO to the other before
and after transmitting. Since this radio has two VFOs, I could
still hear the downlink even if the transmit VFO was the active
VFO. I had to make sure to go back to the receive VFO to make my
Doppler adjustments, and then to the transmit VFO if I wanted to
be heard through the satellite (something I missed once or twice).
Sure, this is not the ideal handheld radio for FM satellite operating,
but it is definitely good enough as a backup if I am not able to
use my normal HT (IC-T7H) or any of my other radios to get on an FM
satellite pass.
I will not regularly work satellite passes from this location. I
tried it today, since I was the only one in the office (I had some
work to do on one of my computer systems, best done when nobody else
is in). There is a hospital about 1/2 mile (about 1km) south of here,
which throws out a lot of intermod - a good reason not to work many
passes here. With a better antenna, and especially pointing south
toward the hospital, I would have had problems hearing the satellite
downlink. Even with all of that in mind, I now have another radio
that I've used on the satellites - and is capable of being used in
the future if the need arises. It will definitely be used for APRS
when I go on the road, mostly through the terrestrial APRS network but
I might see if I can get an APRS packet through the ISS some time.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 6
Date: Sat, 28 Aug 2010 22:09:23 -0500
From: "Gary \"Joe\" Mayfield" <gary_mayfield@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Latest AMSAT Journal
To: "'STeve Andre''" <andres@xxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <COL114-DS3ADA4D4076D89AF4F8D3C8A880@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Steve,
I believe AMSAT is sending the Journal, and I don't remember claiming
they weren't. I also know it quite often doesn't get here. It is the only
piece of regularly scheduled mail I have trouble with. I suspect the postal
service is having problems between me and AMSAT. I was just checking to see
if that has happened again. The answer I got leads me to believe it is too
soon to tell with this issue of the magazine. I asked the original question
simply because it is very difficult to know when you were supposed to get
something you didn't get :-)
73,
Joe kk0sd
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of STeve Andre'
Sent: Saturday, August 28, 2010 11:30 AM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Latest AMSAT Journal
On Saturday 28 August 2010 00:24:10 Gary "Joe" Mayfield wrote:
> Gould,
>
> Please don't take my message the wrong way. I love the journal, but
> have had MANY delivery issues. I have yet to receive the May/June issue.
>
> 73,
> Joe kk0sd
Joe,
Don't assume that AMSAT didn't send it to you 'till you've verified it with
them and they think they had a problem.
I've had delivery issues on things too, and it is the fault of the Post
Office. Your local PO can range from fantastic to wretched, and here in
Ann Arbor MI, it seems like we're more towards the wrong end of the
scale. One issue of QST had a completely mangled front cover, so bad
that I called the PO here and complained. The response was... "Oh.".
Lansing MI on the other hand, has such an efficient system that a
letter mail to my home town of Ann Arbor *gets there faster* than the
same thing mailed *in* Ann Arbor in most cases.
So when the ham mag you've been waiting for looks like a war refugee,
or has been AWOL for 1 week+, think about the system that carries it
to you. Note: This is not a rant against the USPO--I support it, but I
think
it needs help, and I don't think that money is the answer.
--STeve Andre'
wb8wsf en82
_______________________________________________
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: 7
Date: Sat, 28 Aug 2010 22:50:40 -0500
From: "Matt Patterson" <mattpatt@xxxxxxxx.xxx>
Subject: [amsat-bb] SO-50
To: <amsAT-BB@xxxxx.xxx>
Message-ID: <000901cb472d$5cb446d0$161cd470$@xxx>
Content-Type: text/plain; charset="us-ascii"
Excellent pass over North America 0340Z and no one to talk to. L
Matt
W5LL
------------------------------
Message: 8
Date: Sat, 28 Aug 2010 22:08:26 -0700
From: "Art McBride" <kc6uqh@xxx.xxx>
Subject: [amsat-bb] Re: New Satellite Downlink?
To: <kg4zlb@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <C21F09F323A14B7387437F179D54DD69@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
In the USA
I am not aware of any Federal law that prevents listening to government
frequencies. They are considered directed communications and can not be used
for personal gain nor be repeated or transcribed by the listener.
There are many local laws, however as soon as the constitutionality of the
local laws are challenged (Regulatory rights for radio communication are
reserved for the Federal Government) charges are dropped. These laws are
maintained only for their nuisance value.
Art,
KC6UQH
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of David - KG4ZLB
Sent: Saturday, August 28, 2010 3:01 PM
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: New Satellite Downlink?
I would have to side with Nigel here as my understanding is that he is
quite correct - you are not allowed to listen into the Police
frequencies for instance or any other frequency that you are not
authorized for - maybe you can in Scotland Gordon :-P
As always, I am happy to be corrected though.
David
M0ZLB/KG4ZLB
On 8/28/2010 14:45, Gordon JC Pearce wrote:
> On Fri, 2010-08-27 at 23:40 +0000, Nigel Gunn G8IFF/W8IFF wrote:
> I don't know where you've been in Europe, but that would be perfectly
> legal in the UK.
>
> Gordon MM0YEQ
>
> _______________________________________________
> 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
__________ Information from ESET NOD32 Antivirus, version of virus signature
database 5405 (20100828) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
__________ Information from ESET NOD32 Antivirus, version of virus signature
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database 5405 (20100828) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
------------------------------
Message: 9
Date: Sat, 28 Aug 2010 21:46:58 -0800
From: "Edward R. Cole" <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] May/June Journal
To: amsat-bb@xxxxx.xxx
Message-ID: <201008290546.o7T5kwME083229@xxxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
I received my copy of the May/June Journal today
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
EME: 144-QRT*, 432-100w, 1296-QRT*, 3400-fall 2010
DUBUS Magazine USA Rep dubususa@xxxxxxx.xxx
======================================
*temp
------------------------------
Message: 10
Date: Sun, 29 Aug 2010 09:14:36 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
Subject: [amsat-bb] It's Time to Register for the 2010 AMSAT
Symposium
To: <amsat-bb@xxxxx.xxx>
Message-ID: <001901cb4784$83ad50e0$8b07f2a0$@xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello Everyone,
Here is a relay of Symposium news from the AMSAT News Service Bulletins ...
SB SAT @ AMSAT $ANS-241.01
It's Time to Register for the 2010 AMSAT Symposium
AMSAT News Service Bulletin 241.01
>From AMSAT HQ SILVER SPRING, MD.
August 29, 2010
To All RADIO AMATEURS
BID: $ANS-241.01
It is time to register for the 2010 AMSAT Space Symposium and
General meeting. You can register on-line at the AMSAT Store:
http://www.amsat-na.com/store/SymposiumReg.php
Your conference fee includes entrance to the Symposium, refreshments
and a copy of the 2010 Symposium Proceedings:
$40.00 per person before 15 September 2010
$45.00 from 21 September through 5 October
Online registration closes 5 October at Midnight.
Registration at the door will be $50.00.
The Saturday Night Banquet is the highlight of the Space Symposium.
Join us for great food, major announcements and the traditional banquet
prize awards. Saturday Evening Banquet $45.00 per person.
The keynote speaker at the banquet will be Dr. Albert Stebbins, a
theoretical astrophysicist working with the Sloan Digital Sky Survey
in the Fermilab Theoretical Astrophysics Group.
AMSAT Area Coordinators typically gather to exchange ideas and tech-
niques for supporting AMSAT members and promoting amateur satellite
operations. Sunday Morning Area Coordinator's Breakfast:
$15.00 per person
Symposium Hotel Information:
----------------------------
The Chicago/Elk Grove Holiday Inn is located west of O'Hare Airport at
1000 Busse Road, Elk Grove Village, IL 60007. Telephone 1-847-437-6010.
The registration code for the discount rate of $79.00 per night is AMS.
The direct link to the www.holidayinn.com hotel web page is:
http://tinyurl.com/2aptoeu
You can also reach this page from the Symposium web page at:
http://www.amsat.org/amsat-new/symposium/2010/Hotel.php
Flight & Airport Information:
-----------------------------
Chicago-O'Hare International Airport is the closest to the Chicago/
Elk Grove Holiday Inn Hotel. The hotel offers free hourly shuttle
service to and from O'Hare Airport. Call the hotel upon arrival to
let them know to come pick you up.
Note that Chicago-Midway Airport is approximately 40 miles from the
hotel and will require commuting or a $22.00 Shuttle fee. O'Hare
Airport is served by all major air carriers.
Getting there by car:
The hotel address is 1000 Busse Road, Elk Grove Village, IL 60007.
A map link is included on the hotel web page.
The GPS coordinates are 42? 00' 37.30" N 87? 57' 36.5" W.
Sunday Afternoon Tour
---------------------
At the conclusion of the Symposium activities you are invited to
participate in a tour of the Tevatron at the Fermi National
Accelerator Laboratory on Sunday. Part of the tour will include
a tour of the multi-megawatt RF portions of the particle
accelerator as well as a tour of the new Super Conducting RF
Test Facility. The Symposium registration form includes a place
to indicate whether you can help with the car pools for travel to
FermiLab and back to the hotel. The planned start time for the
FermiLab tour will be 12 Noon.
[ANS thanks the 2010 Symposium Committee for the above information]
PS - If you don't get the AMSAT News Service weekly bulletins you can sign
up on-line at: http://amsat.org/mailman/listinfo/ans
--
73 de JoAnne K9JKM
k9jkm@xxxxx.xxx
Editor, AMSAT News Service
Copy Editor, AMSAT Journal
------------------------------
Message: 11
Date: Sun, 29 Aug 2010 09:23:44 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
Subject: [amsat-bb] Exciting Symposium Papers and Presentations
Rolling In
To: <amsat-bb@xxxxx.xxx>
Message-ID: <001d01cb4785$ca118780$5e349680$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hello Again Everyone,
Here is a relay of more Symposium news from the AMSAT News Service Bulletins
...
SB SAT @ AMSAT $ANS-241.02
Exciting Papers and Presentations Rolling In
AMSAT News Service Bulletin 241.02
>From AMSAT HQ SILVER SPRING, MD.
August 29, 2010
To All RADIO AMATEURS
BID: $ANS-241.02
As of this week the 2010 Symposium Committee has had several exciting
offers for papers and presentations. Topics that have arrived include
the list below.
Exploration and definition of AMSAT's opportunities to grow our
outreach in the educational areas:
+ ARISS and Education
+ ARISS Operation Update
+ Education Paradigm Shift for AMSAT to Support Subsidized
Launch Opportunities
+ University of Louisiana Satellite Program
Get up-to-date on AMSAT's next platform in space:
+ Assembling ARISSat
+ ARISSatTLM, a telemetry display program for ARISSat-1
+ Software Radio Technology on ARISSat-1
+ ARISSat-1 Overview
+ ARISSat-1 Power System
+ BPSK-1000 format for ARISSat-1
Discussion of AMSAT's future satellite technology:
+ Elmersat -- A Modest Proposal for Future Satellites
+ Using ham radio satellites to distribute amateur radio news in
both voice and data formats
+ Characteristics of simulated data multicasts transmitted over
K3IO's proposed GEO-Eagle communications platform
+ Proposal for Digital Television Aboard the ISS
Updates and information of current AMSAT topics:
+ ITAR Legal Update
+ AMSAT-FOX
+ SUNY-AMSAT System Development
+ AO-51 Battery Capacity and Spin Trends
+ South Africa AMSAT Update
+ AMSAT Publications - Future Direction for the Journal, News
Service, & Web
Building up your satellite station:
+ Flex Radio V/U Module - 2m/70cm full duplex transverter module
for the Flex 5000
+ Low Cost, Lightweight Homebrew Dish Construction
Teaching others how we do it:
+ How to Work the FM Ham Satellites With Your Handheld Radio
+ Successful Hamfest Demonstrations
Authors are reminded to send in your completed papers as soon as
possible. Presentations should be in Powerpoint format. Bring your
presentation loaded on a thumb drive which can be loaded into the
projection system prior to your speaking time slot.
[ANS thanks the 2010 Symposium Committee for the above information]
PS - If you don't get the AMSAT News Service weekly bulletins you can sign
up on-line at: http://amsat.org/mailman/listinfo/ans
--
73 de JoAnne K9JKM
k9jkm@xxxxx.xxx
Editor, AMSAT News Service
Copy Editor, AMSAT Journal
------------------------------
Message: 12
Date: Sun, 29 Aug 2010 09:26:35 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
Subject: [amsat-bb] Symposium Poster Presentation & Demonstration
Opportunity
To: <amsat-bb@xxxxx.xxx>
Message-ID: <001f01cb4786$30301b80$90905280$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hello Once Again Everyone,
Here is a relay of even more Symposium news from the AMSAT News Service
Bulletins ...
SB SAT @ AMSAT $ANS-241.03
Symposium Poster Presentation & Demonstration Opportunity
AMSAT News Service Bulletin 241.03
>From AMSAT HQ SILVER SPRING, MD.
August 29, 2010
To All RADIO AMATEURS
BID: $ANS-241.03
The poster presentation and demonstration area proved to be a popular
place to visit at the Baltimore Symposium. The 2010 Symposium Committee
plans to duplicate this success at the Chicago Symposium.
So, if you don't have time to generate a paper or presentation please
consider setting up a Poster Presentation or demonstration. We had the
opportunity to view actual CubeSats, PPod launchers, ARISSat-1 proto-
types.
If you plan on setting up a Poster or demonstration please contact the
2010 Symposium Proceedings Editor, JoAnne Maenpaa K9JKM via e-mail at
k9jkm@xxxxx.xxx. We'll reserve table space for you!
[ANS thanks the 2010 Symposium Committee for the above information]
PS - If you don't get the AMSAT News Service weekly bulletins you can sign
up on-line at: http://amsat.org/mailman/listinfo/ans
--
73 de JoAnne K9JKM
k9jkm@xxxxx.xxx
Editor, AMSAT News Service
Copy Editor, AMSAT Journal
------------------------------
Message: 13
Date: Sun, 29 Aug 2010 08:36:31 -0700 (PDT)
From: Mark Spencer <mspencer12345@xxxxx.xx>
Subject: [amsat-bb] Fw: Re: New Satellite Downlink?
To: amsat-bb@xxxxx.xxx
Message-ID: <369.68428.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
In my oppinion, I don't see much difference between the military
broadcasting on
this satellite to hams?and cross band HF contacts with military stations where
the military transmits on their?own frequencies knowing that hams are
listening.
?Granted in some places it may not be legal to listen to 149.985 or for hams
to
listen to non amateur broacasts but that is another issue.
If only the military can uplink to this satellite then I would expect that
they
are accountable for what gets broadcast.???
?
----- Original Message ----
From: George Henry <ka3hsw@xxx.xxx>
To: amsat bb <amsat-bb@xxxxx.xxx>
Sent: Fri, August 27, 2010 4:28:02 PM
Subject: [amsat-bb] Re: New Satellite Downlink?
Question:? since there is no amateur radio allocation at 149.985, "we"
(hams) would be asking the Navy, to whom the downlink frequency is
allocated, to transmit one-way amateur communications thru this satellite,
correct?
Doesn't anyone else see potential legal problems involved here?
George, KA3HSW
----- Original Message -----
From: "Robert Bruninga" <bruninga@xxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Wednesday, August 25, 2010 11:27 AM
Subject: [amsat-bb] New Satellite Downlink?
> Possible new AMSAT Application?
>
> We may have access to two old TRANSIT navigation satellites with
> a 50 baud downlink at 149.985 (and 400 MHz). (presently coming
> over in the mid afternoon).? My problem is, coming up with any
> meaningful application to use them for communications that would
> capture the interest of students, hams or volunteers in support
> of education, public service or emergency comms or just plain
> fun...
>
> The downlink can be heard on an OMNI antenna (though I would
> suggest a 3/4 wave (55") vertical) and could be decoded by a
> simple software only application with a sound card. (someone has
> to write it)...
>
> The total useful message capability is about 500 bytes
> transmitted every 2 minutes (at 50 baud).? The uplink is very
> specialized and can ONLY BE DONE from one (or two) very special
> commmand stations.? These satellites of course were the original
> Navy Navigation satellite system (also called OSCARS) and so the
> message would be in-place of the normal navigation data.? SO in
> a sense, this is a downlink BROADCAST application.? Since ham
> radio is two way, I'm stumped for applications.
>
> The total message capability of 500 Bytes can contain one long
> ARRL bulletin, or 20 APRS position/status reports, or say 20 or
> so APRS text messages, or say 50 "callsign exchanges" or maybe
> even 1 thumbnail image...? but what's the application?
>
> Even if we allow say, INTERNET link to the command station for
> "anyone" to contribute to the twice per-day upload, then
> everyone's receiver application can receive them...? For what?
>
> So Im looking for ideas.? All I can come up with so far is:
> 1) ARRL Bulletins? (I don't even know how often ARRL sends
> bulletins...)
> 2) Navy/Army/AF MARS broadcast bulletins...
> 3) Internet message in-to-command-upload-to message RF downlink.
> Two stations do this to each other and it counts as a two-way
> QSO?
> 4) ...
>
> Every scenario of interest usually begins with the much higher
> value of UPLINK from the individual field station, not
> downlink.. Hence I am stumped.
>
> HUMMH... Maybe purely educational?? If the software can run on
> any PC with a sound card connected to any scanner... Then every
> school can use it as a satellite downlink signal of interest..
> What kind of thumbnail image can fit in 500 bytes?? Send in your
> picture and get it downlinked on a given day?
>
> Etc..
>
> Will need a DSP volunteer to write the sound card decoder.
>
> Bob, WB4APR
>
> _______________________________________________
> 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!
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_______________________________________________
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: 14
Date: Sun, 29 Aug 2010 11:29:46 -0500
From: "Gary \"Joe\" Mayfield" <gary_mayfield@xxxxxxx.xxx>
Subject: [amsat-bb] TAPR Trakbox Kit
To: <amsat-bb@xxxxx.xxx>
Message-ID: <COL114-DS10F33ACEC3F9EA96B116D38A880@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Shameless plug for item for sale on eBay ---
http://cgi.ebay.com/TAPR-Trakbox-Stand-Alone-Satellite-Tracker-Kit-/25068943
7836
It is a Trakbox kit I never assembled.
73,
Joe kk0sd
------------------------------
Message: 15
Date: Sun, 29 Aug 2010 17:35:38 +0100
From: Gordon JC Pearce <gordonjcp@xxxx.xxx>
Subject: [amsat-bb] Re: New Satellite Downlink?
To: amsat-bb@xxxxx.xxx
Message-ID: <1283099738.1847.2.camel@xxxxxxxxx.xxxxxxxxxxx>
Content-Type: text/plain; charset="UTF-8"
On Sat, 2010-08-28 at 19:31 +0000, Nigel Gunn G8IFF/W8IFF wrote:
> Dear Gordon.
>
> Please get a copy of the Wireless Telegraphy Act from the library and read
it.
> You are only allowed to listen to authorised broadcast stations, Amateur
Radio stations and transmissions in the
> Standard Frequency and Time Service (or an exempt service such as CB or a
baby monitor for example) unless you have been
> seperately authorised to do otherwise.
> If the US Navy authorises you to listen to their satellite, you're OK,
otherwise you're in breach of the act.
And isn't the idea that we are authorised to experiment with these
satellites, now that the US Navy is no longer using them?
Gordon MM0YEQ
------------------------------
Message: 16
Date: Sun, 29 Aug 2010 13:06:36 -0400
From: Stuart Balanger <wa2bss@xxxxx.xxx>
Subject: [amsat-bb] Reminder: AMSAT BOD Elections
To: amsat-bb@xxxxx.xxx
Message-ID:
<AANLkTinVvu6aABwqmVUkKid5MViHyu2qvrjJgnjiWAsB@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
*Hi all,
Don't forget to vote in the AMSAT BOD's election's,
& if you haven't please mark your ballot (Vote for 3),
& mail it before Sept 15th. (Wed.)
If you have voted, yhanks for taking the time!.
I thought I would say something, since no one else has!
73,.Stu (WA2BSS)
*
------------------------------
_______________________________________________
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 5, Issue 358
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