| |
CX2SA > SATDIG 07.10.16 16:25l 1050 Lines 35759 Bytes #999 (0) @ WW
BID : AMSATBB11323
Read: GUEST
Subj: AMSAT-BB-digest V11 323
Path: IW8PGT<CX2SA
Sent: 161007/1419Z @:CX2SA.SAL.URY.SOAM #:55077 [Salto] FBB7.00e $:AMSATBB11323
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: Looking for OLD (really old) Ham-related software (Jay Mail)
2. Re: Global Geo SATCOM system? (Scott)
3. Upcoming ARISS Contact Schedule as of 2016-10-07 07:00 UTC
(AJ9N@xxx.xxxx
4. Re: Global Geo SATCOM system? (Andrew Rich)
5. Re: Outernet experiences (Andrew Rich)
6. Re: Global Geo SATCOM system? (Andrew Rich)
7. Re: Global Geo SATCOM system? (Daniel Cussen)
8. Re: Global Geo SATCOM system? (Andrew Rich)
9. AO-07 (Joe)
10. Re: AO-07 (JoAnne Maenpaa)
----------------------------------------------------------------------
Message: 1
Date: Thu, 6 Oct 2016 21:52:54 -0500
From: Jay Mail <sqrtofone@xxxxx.xxx>
To: Greg D <ko6th.greg@xxxxx.xxx>
Cc: Amsat BB <AMSAT-BB@xxxxx.xxx>
Subject: Re: [amsat-bb] Looking for OLD (really old) Ham-related
software
Message-ID: <35147CFB-234D-4447-9D3F-63BEFCC32D91@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
If a link is broken, you could always try to look for it or other material
on archive.org.
Here's a link to a national semiconductor manual for tinybasic, for example.
https://archive.org/details/bitsavers_nationalstSCTinyBASICUsersManualNov80_83
66353
Jay Cox KG5BZW
Sent from my iPhone
> On Oct 6, 2016, at 5:31 PM, Greg D <ko6th.greg@xxxxx.xxx> wrote:
>
> Hi folks,
>
> In the small world department, it turns out that a fellow Ham club
> member and I were both part of the original Homebrew Computer Club back
> in the 70's. We thought it might be fun to have a demo at one of the
> Ham club meetings of some of the old hardware running something
> ham-related, just for fun.
>
> I have an "MAI Jolt", a 6502 / TIM system that I built in 1976, and just
> got it running again. 12K of memory, TV Typewriter, paper tape reader.
> CPU runs at a blazing 750 khz. Plays Hunt the Wumpus perfectly. Yes,
> folks, computing in the AM Broadcast band was never better.
>
> What I need now is some software (besides HtW) to run on it. This is
> NOT a C-64 or Apple-II; they have the same CPU chip, but different
> memory map and I/O. Besides the raw CPU itself, I also have a copy of
> Tom Pitman's Tiny Basic that also appears to run. The usual Google
> searches have come up either empty or with broken links to places like
> GeoCities.
>
> Anybody have anything TIM or Tiny Basic compatible that they can share
> or point me to?
>
> Thanks,
>
> Greg KO6TH
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Fri, 7 Oct 2016 01:28:39 -0400
From: Scott <scott23192@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Global Geo SATCOM system?
Message-ID:
<CAJCSnOYXy58xO_yH-cCw2+t6RBQ=kLfQrFXmwisY+cRuTLvV-g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I have a couple of additional pieces of information to pass along on this
topic as of tonight.
As many are aware, the Outernet hardware "package" consists of a patch
antenna, LNA, and unmarked SDR with bias-T enabled.
Tonight I remembered that some time ago I could not resist buying a couple
of the second (?) generation metal-case RTL-SDR dongles from rtl-sdr.com.
I have been using one on my linux computer but the other one was unused.
Remembering that these rtl-sdr dongles had 5v bias-T as an option, I took
the unused one apart and soldered the appropriate pins to enable the
bias-T. That allowed me to do a comparison with the unmarked SDR that came
with the other Outernet items.
Setting Outernet aside for a moment, I did an apples to apples comparison
of the L-Band AERO signals coming from Inmarsat 4-F3. The difference in
signal strength was obvious and substantial. The rtl-sdr gave me over 10db
more SNR, so in addition to the 600 & 1200 AERO data streams, I could now
easily decode the 10k AERO signals where there is a lot more (and more
interesting) traffic.
So with that test complete and fairly conclusive, I reconnected everything
to the Raspberry Pi but with the rtl-sdr dongle this time. Not
surprisingly, the L-Band Outernet signal was also greatly improved. Where
my SNR figure had been around 3, with the rtl-sdr dongle it was varying
between 6 & 8. Please keep in mind that I do not have a clear sky view, so
take all of these findings with that in mind.
A few minutes after powering up the Pi and seeing the improved SNR figure,
content from the satellite started downloading. As you might expect, the
rate seemed to be noticeably quicker than before.
Imagine my surprise to see the first file arrive as a .tgz compressed
archive that, when extracted, contained some amateur radio content! Here
are the first few lines from the file that just arrived:
==========================
OUTERNET>APRS:>OUTERNET file created Fri Oct 7 05:00:19 UTC 2016
VI50CC>APRS,RS0ISS*,qAR,ZL4JL-6::RS0ISS :Hello ZL James G/day Mate
RS0ISS>CQ,qAS,ZL1KM-H:>ARISS - International Space Station
K6PKL>CQ,RS0ISS*,qAS,KK6RKY:=3748.51N/12112.44W-Solar powered, 20 watts
j-pole {UIV32N}
KK6OTJ-7>DE1QYT,RS0ISS*,qAS,KK6RKY:`.BJl tK\>CQ CQ CQ ALL LIVE OPERATORS
PLEASE REPLY =
KK6OTJ-7>DE1QYT,RS0ISS*,qAS,KK6RKY:`.BJl"@xx>CQ CQ CQ ALL LIVE OPERATORS
PLEASE REPLY =
KK6OTJ-7>DE1QYT,RS0ISS*,qAS,KK6RKY:`.BJl"cK\>CQ CQ CQ ALL LIVE OPERATORS
PLEASE REPLY =
RS0ISS>CQ,qAS,KK6RKY:>ARISS - International Space Station
==========================
... and it continued with similar APRS type traffic.
So, if my finding is any example, if anyone would like to optimize their
Outernet reception, or for that matter ANY L-band reception, you can do it
without dedicating one of the expensive SDR's to this function. The
metal-case rtl-sdr dongle with bias-T enabled was an excellent step up in
performance for me.
-Scott, K4KDR
=============
=============
On Wed, Oct 5, 2016 at 6:51 PM, Robert Bruninga <bruninga@xxxx.xxx> wrote:
> AMSAT tinkerers?
>
> OUTERNET is a free worldwide Geostationary Satellite downlink system
> designed to bring content to remote areas all over the globe. They have
> six geostationary birds covering the entire globe EVERYWHERE. All you need
> is a small 18? (or 36? in some very remote areas) to receive content via
> your own home-made receiver based on a TV dongle and Rasberry Pi.
>
> Is there anyone on AMSAT-bb that is already receiving this content? We?d
> like to hear about how easy it is to set up a receiver.
>
> We have some ideas on how this can be used to augment Ham radio in our
> Emergency Response and remote operations missions. See
> http://aprs.org/outnet.html
>
> Bob, WB4APR
>
>
------------------------------
Message: 3
Date: Fri, 7 Oct 2016 02:12:14 -0400
From: AJ9N@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2016-10-07
07:00 UTC
Message-ID: <504f3c.1466717f.452896be@xxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Upcoming ARISS Contact Schedule as of 2016-10-07 07:00 UTC
Quick list of scheduled contacts and events:
Sekolah Kebangsaan Jalan Pasar 1, Kuala Lumpur, Malaysia, direct via 9M2RPN
The ISS callsign is presently scheduled to be OR4ISS
The scheduled astronaut is Takuya Onishi KF5LKS
Contact was successful: Thu 2016-10-06 18:24:00 UTC 46 deg (***)
iSPACE, Cincinnati OH, telebridge via IK1SLD
The ISS callsign is presently scheduled to be OR4ISS
The scheduled astronaut is Kate Rubins KG5FYJ
Contact is a go for: Sat 2016-10-08 16:15:10 UTC 57 deg
Stephen F. Austin Elementary School, Brazosport ISD, Jones Creek, Texas,
telebridge via VK5ZAI
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Takuya Onishi KF5LKS
Contact is a go for: Mon 2016-10-10 16:46:00 UTC 50 deg
University of Nebraska's Peter Kiewit Institute, Omaha NE, telebridge via
VK4KHZ
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Kate Rubins KG5FYJ
Contact is a go for: Sat 2016-10-15 14:00:08 UTC 29 deg
****************************************************************************
**
Call for Proposals
Proposal Window September 1 ? November 1, 2016
The Amateur Radio on the International Space Station (ARISS) Program is
seeking formal and informal education institutions and organizations,
individually or working together, to host an Amateur Radio contact with a crew
member on board the ISS. ARISS anticipates that the contact would be held
between July 1, 2017 and December 31, 2017. Crew scheduling and ISS orbits
will
determine the exact contact dates. To maximize these radio contact
opportunities, ARISS is looking for organizations that will draw large
numbers of
participants and integrate the contact into a well-developed education
plan.
The deadline to submit a proposal is November 1, 2016. Proposal
information and documents can be found at
www.arrl.org/hosting-an-ariss-contact.
****************************************************************************
**
ARISS is always glad to receive listener reports for the above contacts.
ARISS thanks everyone in advance for their assistance. Feel free to send
your reports to aj9n@xxxxx.xxx or aj9n@xxx.xxx.
Listen for the ISS on the downlink of 145.8? MHz.
****************************************************************************
***
All ARISS contacts are made via the Ericsson radio unless otherwise noted.
****************************************************************************
***
Several of you have sent me emails asking about the RAC ARISS website and
not being able to get in. That has now been changed to
http://www.ariss.org/
Note that there are links to other ARISS websites from this site.
****************************************************************************
Looking for something new to do? How about receiving DATV from the ISS?
If interested, then please go to the ARISS-EU website for complete
details. Look for the buttons indicating Ham Video.
http://www.ariss-eu.org/
If you need some assistance, ARISS mentor Kerry N6IZW, might be able to
provide some insight. Contact Kerry at kbanke@xxxxxxxxx.xxx
****************************************************************************
ARISS congratulations the following mentors who have now mentored over 100
schools:
Satoshi 7M3TJZ with 123 (***)
Gaston ON4WF with 121
Francesco IK?WGF with 118
****************************************************************************
The webpages listed below were all reviewed for accuracy. Out of date
webpages were removed and new ones have been added. If there are
additional
ARISS websites I need to know about, please let me know.
Note, all times are approximate. It is recommended that you do your own
orbital prediction or start listening about 10 minutes before the listed
time.
All dates and times listed follow International Standard ISO 8601 date
and
time format YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of 2016-10-07 07:00 UTC.
(***)
Here you will find a listing of all scheduled school contacts, and
questions, other ISS related websites, IRLP and Echolink websites, and
instructions for any contact that may be streamed live.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Total number of ARISS ISS to earth school events is 1086. (***)
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 1051. (***)
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is 47.
A complete year by year breakdown of the contacts may be found in the
file.
http://www.amsat.org/amsat/ariss/news/arissnews.rtf
Please feel free to contact me if more detailed statistics are needed.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
The following US states and entities have never had an ARISS contact:
Arkansas, Delaware, South Dakota, Wyoming, American Samoa, Guam, Northern
Marianas Islands, and the Virgin Islands.
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
QSL information may be found at:
http://www.ariss.org/qsl-cards.html
ISS callsigns: DP?ISS, IR?ISS, NA1SS, OR4ISS, RS?ISS
****************************************************************************
The successful school list has been updated as of 2016-10-07 07:00 UTC.
(***)
http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf
Frequency chart for packet, voice, and crossband repeater modes showing
Doppler correction as of 2005-07-29 04:00 UTC
http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction
.rtf
Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC.
http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf
Check out the Zoho reports of the ARISS contacts
https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415
****************************************************************************
Exp. 47 on orbit
Jeff Williams KD5TVQ
Oleg Skripochka RN3FU
Aleksey Ovchinin
Exp. 48 on orbit
Anatoly Ivanishin
Kate Rubins KG5FYJ
Takuya Onishi KF5LKS
****************************************************************************
73,
Charlie Sufana AJ9N
One of the ARISS operation team mentors
------------------------------
Message: 4
Date: Fri, 7 Oct 2016 17:06:04 +1000
From: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
To: Scott <scott23192@xxxxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Global Geo SATCOM system?
Message-ID: <1DB77E7D-B8F2-432A-910C-CDB5B95C3AFE@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
What are the frequencies for the different regions ?
I want to use my SDR to get a dish going
Andrew
'
> On 7 Oct 2016, at 01:02, Scott <scott23192@xxxxx.xxx> wrote:
>
> The O/S image for the Pi can be downloaded from:
>
> https://archive.outernet.is/images/rxOS-Raspberry-Pi/
>
> ... there is documentation at:
>
> http://rxos.readthedocs.io/en/develop/getting_started/raspberry_pi.html
>
> ... but that doc currently seems to cover a lot more than the Pi and also a
> lot more than just installing & using the system.
>
> So, in summary it's a lot more straightforward than you would think from
> the instructions:
>
> -write the O/S image to a micro-SD card for the Pi
>
> -point your antenna in the correct direction & plug it into the LNA > SDR >
> Pi
>
> -power on the Pi
>
> -from a wi-fi capable computer, connect to SSID "Outernet"
>
> -in a browser, connect to either 10.0.0.1 or 10.10.10.10 (mine uses the
> former, but I noticed in the doc that they reference the latter)
>
> -the browser interface will walk you through setting up an admin password;
> you can explore the interface from there
>
> Ref. the TP-Link dish, the feed is included. I believe it's more-or-less
> a dipole.
>
>
> ==================================================================
>
> On Thu, Oct 6, 2016 at 12:53 AM, Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
> wrote:
>
>> Scott
>>
>> I am interested in getting mine going tonight
>>
>> Can you step me through the software side please
>>
>> Andrew
>>
>
>>>>>> what feed on the dish ?
>
>>
>> ------------------------------------------
>> Andrew Rich VK4TEC
>> w www.tech-software.net
>> e vk4tec@xxxxxxxxxxxxx.xxx
>> m +61 (4) 19 738 223
>> m 0419738223
>>
>>
>>
>>
>>
>>
>> On 6 Oct 2016, at 9:25 AM, Scott <scott23192@xxxxx.xxx> wrote:
>>
>> Hi Bob & everyone.
>>
>> I have a partially obscured view at the angle required for geostationary
>> satellites but was curious to see if I could get Outernet's signal from
>> Inmarsat 4-F3, which is where Outernet's transmission originates from in
>> this area (USA East Coast).
>>
>> For background, I had used a variety of antennas (patch, vivaldi, DirecTV
>> dish repurposed) to receive some of the various data streams from Inmarsat
>> 4-F3 in the past, with varying results.
>>
>> I ordered the combination patch antenna / LNA / SDR that Outernet has
>> assembled optimized for L-Band. That left only the software side to
>> configure.
>>
>> The first option was zero-cost, which was to attempt to decode the
>> Outernet feed using their guided software install for an existing Linux
>> computer. This consisted of a number of apps working in concert.
>>
>> The "receiver" portion worked properly - I did see a reasonable SNR and
>> mostly error-free data stream. Unfortunately, I never decoded any content
>> with the other apps either due to their alpha or beta stage of development
>> or my lack of linux expertise.
>>
>> However, at the same time I was corresponding with a couple of other hams
>> who saw similar results with the "add on" apps for a working linux
>> computer. I have not dug any deeper with that method so as of now, for all
>> I know that branch of the software might have improved.
>>
>> In stark contrast to my lack of success with the linux method was a
>> turnkey boot image that Outernet makes available for you to write to an SD
>> card for use in a Raspberry Pi. Consisting of a fairly lite linux OS, plus
>> all the apps required and optimized for Outernet use, this solution was
>> very much ready for production use.
>>
>> I would say within 2 minutes of booting a new Pi-3 with the Outernet
>> image, content started downloading to the local storage on the Pi. I
>> didn't have to do a thing but figure out how to log into the web interface
>> that is your portal to the Pi. (web as in http; there is no internet
>> connection, naturally) It was as plug-and-play as you could possibly
>> get... turn on the Pi and point the antenna. Period. Content just starts
>> downloading if you have a decent signal. You connect to the Pi from
>> another computer and any files that have downloaded are available for you
>> to view.
>>
>> Of course the antenna / LNA / SDR was attached before I powered up the Pi
>> and positioned to have decent visibility in the right direction. And of
>> course it's easy to see that the better your RF receive situation, the
>> better will be the rate at which content is received.
>>
>> Finally, using items already on-hand for other experiments, I replaced the
>> patch antenna with the TP-Link 2.4 GHz dish (https://www.amazon.com/
>> Directional-Parabolic-Connector-Resistant-TL-ANT2424B/dp/B003CFATOW?th=1)
>> that you often see used by amateurs for experimentation. Never mind that
>> it's supposedly for a higher frequency and never mind that it's not
>> circularly polarized, I found that in conjunction with the LNA & SDR from
>> Outernet, I received a much stronger signal than with the patch antenna.
>> But in fairness, I have not made a comparison with a 100% clear view of the
>> sky.
>>
>> I hope those very early and limited observations of Outernet's solution
>> are useful to you.
>>
>> -Scott, K4KDR
>> Montpelier, VA USA
>>
>>
>> ------------------------------------------------------------
>> --------------------
>>
>> -----Original Message----- From: Robert Bruninga
>> Sent: Wednesday, October 05, 2016 6:51 PM
>> To: amsat-bb@xxxxx.xxx
>> Subject: [amsat-bb] Global Geo SATCOM system?
>>
>> AMSAT tinkerers?
>>
>>
>>
>> OUTERNET is a free worldwide Geostationary Satellite downlink system
>> designed to bring content to remote areas all over the globe. They have
>> six geostationary birds covering the entire globe EVERYWHERE. All you need
>> is a small 18? (or 36? in some very remote areas) to receive content via
>> your own home-made receiver based on a TV dongle and Rasberry Pi.
>>
>>
>>
>> Is there anyone on AMSAT-bb that is already receiving this content? We?d
>> like to hear about how easy it is to set up a receiver.
>>
>>
>>
>> We have some ideas on how this can be used to augment Ham radio in our
>> Emergency Response and remote operations missions. See
>> http://aprs.org/outnet.html
>>
>>
>>
>> Bob, WB4APR
>>
>>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Fri, 7 Oct 2016 17:07:15 +1000
From: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
To: N6RFM1 gmail <n6rfm1@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Outernet experiences
Message-ID: <591C3652-D1E7-4316-A83D-C2F3C08A0DEB@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Config files for each region ?
Should have freqs ?
Andrew
> On 7 Oct 2016, at 01:25, N6RFM1 gmail <n6rfm1@xxxxx.xxx> wrote:
>
> Bob and fellow AMSAT tinkerers,
>
>
>
> I also have the system up and running using the patch antenna, LNA/BPF and
> an E4000 based dongle sourced from Outernet.
>
>
>
> It?s was very straightforward to get it running using the Raspberry Pi (3)
> and their rxOS. Burn an SD card, and fire it up. This makes changing back
> to another OS as simple as swapping out the SD card.
>
>
>
> The E4000 RTL-SDR Outernet provides appears to be modified so that bias-T is
> passed to the LNA out of the box. Otherwise another means to power an LNA
> may be necessary.
>
>
>
> As an alternative to the R-Pi, they also support the CHIP computer. This
> device is not much bigger than a credit card, and ~ ?? thick. If sourced
> from Outernet, it comes flashed with their rxOS software. It took me some
> time to appreciate that the CHIP?s wifi RX is a bit deaf. So, to log onto
> the system with any wifi enable device (such as my iPhone), I had to be
> within a few feet.
>
>
>
> The CHIP is however fun to play with. It can also be flashed with a Debian
> based OS and used as stand-alone computer. It seemed a bit slow (heck,
> what do you expect for a $9 computer) but was serviceable to surf the web,
> email, etc. That said, flashing back to the rxOS for Outernet
> reception/decoding from the Debian OS is clunky and requires getting under
> the Linux hood in terminal mode.
>
>
>
> Outernet has a pretty active user forum, with technical support often coming
> from the founder. For me it was a fun way to do some RX at 1.5 GHz, learn
> some more Linux and play with some interesting hardware. Now I need to
> build a WX tight radome to allow 24/7 RX.
>
>
>
> Lastly, shout out and thanks to Scott K4KDR and Darren G0HWW for advice and
> encouragement.
>
>
>
> GL,
>
>
>
> Bob N6RFM FN41iq
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Message: 5
>
> Date: Wed, 5 Oct 2016 18:51:52 -0400
>
> From: Robert Bruninga <bruninga@xxxx.xxx <mailto:bruninga@xxxx.xxx> >
>
> To: amsat-bb@xxxxx.xxx <mailto:amsat-bb@xxxxx.xxx>
>
> Subject: [amsat-bb] Global Geo SATCOM system?
>
> Message-ID: <f01b67a22bb2d9715501485f61941d18@xxxx.xxxxx.xxx
> <mailto:f01b67a22bb2d9715501485f61941d18@xxxx.xxxxx.xxx> >
>
> Content-Type: text/plain; charset=UTF-8
>
>
>
> AMSAT tinkerers?
>
>
>
>
>
>
>
> OUTERNET is a free worldwide Geostationary Satellite downlink system
>
> designed to bring content to remote areas all over the globe. They have
>
> six geostationary birds covering the entire globe EVERYWHERE. All you need
>
> is a small 18? (or 36? in some very remote areas) to receive content via
>
> your own home-made receiver based on a TV dongle and Rasberry Pi.
>
>
>
>
>
>
>
> Is there anyone on AMSAT-bb that is already receiving this content? We?d
>
> like to hear about how easy it is to set up a receiver.
>
>
>
>
>
>
>
> We have some ideas on how this can be used to augment Ham radio in our
>
> Emergency Response and remote operations missions. See
>
> http://aprs.org/outnet.html
>
>
>
>
>
>
>
> Bob, WB4APR
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Fri, 7 Oct 2016 17:21:29 +1000
From: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
To: Scott <scott23192@xxxxx.xxx>
Cc: Peter Davies <vk4khp@xxxxxxxx.xxx.xx>, Amsat BB
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Global Geo SATCOM system?
Message-ID: <606F31BE-1757-4D5C-9660-9091F1CF6DB5@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Ok not you have got me REALLY interested
Please tell me about your setup
Andrew
> On 7 Oct 2016, at 15:28, Scott <scott23192@xxxxx.xxx> wrote:
>
> I have a couple of additional pieces of information to pass along on this
> topic as of tonight.
>
> As many are aware, the Outernet hardware "package" consists of a patch
> antenna, LNA, and unmarked SDR with bias-T enabled.
>
> Tonight I remembered that some time ago I could not resist buying a couple
> of the second (?) generation metal-case RTL-SDR dongles from rtl-sdr.com.
> I have been using one on my linux computer but the other one was unused.
> Remembering that these rtl-sdr dongles had 5v bias-T as an option, I took
> the unused one apart and soldered the appropriate pins to enable the
> bias-T. That allowed me to do a comparison with the unmarked SDR that came
> with the other Outernet items.
>
> Setting Outernet aside for a moment, I did an apples to apples comparison
> of the L-Band AERO signals coming from Inmarsat 4-F3. The difference in
> signal strength was obvious and substantial. The rtl-sdr gave me over 10db
> more SNR, so in addition to the 600 & 1200 AERO data streams, I could now
> easily decode the 10k AERO signals where there is a lot more (and more
> interesting) traffic.
>
> So with that test complete and fairly conclusive, I reconnected everything
> to the Raspberry Pi but with the rtl-sdr dongle this time. Not
> surprisingly, the L-Band Outernet signal was also greatly improved. Where
> my SNR figure had been around 3, with the rtl-sdr dongle it was varying
> between 6 & 8. Please keep in mind that I do not have a clear sky view, so
> take all of these findings with that in mind.
>
> A few minutes after powering up the Pi and seeing the improved SNR figure,
> content from the satellite started downloading. As you might expect, the
> rate seemed to be noticeably quicker than before.
>
> Imagine my surprise to see the first file arrive as a .tgz compressed
> archive that, when extracted, contained some amateur radio content! Here
> are the first few lines from the file that just arrived:
>
> ==========================
> OUTERNET>APRS:>OUTERNET file created Fri Oct 7 05:00:19 UTC 2016
> VI50CC>APRS,RS0ISS*,qAR,ZL4JL-6::RS0ISS :Hello ZL James G/day Mate
> RS0ISS>CQ,qAS,ZL1KM-H:>ARISS - International Space Station
> K6PKL>CQ,RS0ISS*,qAS,KK6RKY:=3748.51N/12112.44W-Solar powered, 20 watts
> j-pole {UIV32N}
> KK6OTJ-7>DE1QYT,RS0ISS*,qAS,KK6RKY:`.BJl tK\>CQ CQ CQ ALL LIVE OPERATORS
> PLEASE REPLY =
> KK6OTJ-7>DE1QYT,RS0ISS*,qAS,KK6RKY:`.BJl"@xx>CQ CQ CQ ALL LIVE OPERATORS
> PLEASE REPLY =
> KK6OTJ-7>DE1QYT,RS0ISS*,qAS,KK6RKY:`.BJl"cK\>CQ CQ CQ ALL LIVE OPERATORS
> PLEASE REPLY =
> RS0ISS>CQ,qAS,KK6RKY:>ARISS - International Space Station
> ==========================
>
> ... and it continued with similar APRS type traffic.
>
> So, if my finding is any example, if anyone would like to optimize their
> Outernet reception, or for that matter ANY L-band reception, you can do it
> without dedicating one of the expensive SDR's to this function. The
> metal-case rtl-sdr dongle with bias-T enabled was an excellent step up in
> performance for me.
>
> -Scott, K4KDR
>
> =============
> =============
>
> On Wed, Oct 5, 2016 at 6:51 PM, Robert Bruninga <bruninga@xxxx.xxx> wrote:
>
>> AMSAT tinkerers?
>>
>> OUTERNET is a free worldwide Geostationary Satellite downlink system
>> designed to bring content to remote areas all over the globe. They have
>> six geostationary birds covering the entire globe EVERYWHERE. All you need
>> is a small 18? (or 36? in some very remote areas) to receive content via
>> your own home-made receiver based on a TV dongle and Rasberry Pi.
>>
>> Is there anyone on AMSAT-bb that is already receiving this content? We?d
>> like to hear about how easy it is to set up a receiver.
>>
>> We have some ideas on how this can be used to augment Ham radio in our
>> Emergency Response and remote operations missions. See
>> http://aprs.org/outnet.html
>>
>> Bob, WB4APR
>>
>>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 7
Date: Fri, 7 Oct 2016 08:42:53 +0100
From: Daniel Cussen <dan@xxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Global Geo SATCOM system?
Message-ID:
<CAF3DnKg3vqicYfWo2Ws4Bb6Y+3OQ7xD0LCfqZ0fpOxX=G_nwMQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
> What are the frequencies for the different regions ?
I-4 F3 Americas
Position: 98?W
Coverage: North, South, and Central America, Pacific and Atlantic Oceans
Outernet Frequency: 1539.8725 MHz
Alphasat
Position: 25?E
Coverage: Europe, Africa, Middle East, East Asia, Atlantic and Indian
Oceans
Outernet Frequency: 1545.525 MHz
I-4 F1 APAC (Asia-Pacific)
Position: 144.0?E
Coverage: Asia, Australia, Pacific and Indian Oceans
Outernet Frequency: 1545.9525 MHz
------------------------------
Message: 8
Date: Fri, 7 Oct 2016 18:04:16 +1000
From: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
To: dan@xxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Global Geo SATCOM system?
Message-ID: <A4086841-0CD7-4A84-9646-313FFAECEB05@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Legend
Andrew
-----------------------------
Sent from my iPhone
Andrew Rich
e vk4tec@xxxxxxxxxxxxx.xxx
w www.tech-software.net
m 0419 738 223
On 7 Oct. 2016, at 17:42, Daniel Cussen <dan@xxxx.xxx> wrote:
>> What are the frequencies for the different regions ?
>
> I-4 F3 Americas
> Position: 98?W
> Coverage: North, South, and Central America, Pacific and Atlantic Oceans
> Outernet Frequency: 1539.8725 MHz
>
> Alphasat
> Position: 25?E
> Coverage: Europe, Africa, Middle East, East Asia, Atlantic and Indian
> Oceans
> Outernet Frequency: 1545.525 MHz
>
> I-4 F1 APAC (Asia-Pacific)
> Position: 144.0?E
> Coverage: Asia, Australia, Pacific and Indian Oceans
> Outernet Frequency: 1545.9525 MHz
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Fri, 7 Oct 2016 09:11:03 -0500
From: Joe <nss@xxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AO-07
Message-ID: <97c770b5-0fba-f9f8-2788-31f78acccf78@xxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
I wonder if anyone has actually done any studies after all these years
on propagation's through this bird. AO-07
I find it in the past couple weeks soo interesting on how varied the
level of signal strengths can be on very similar passes.
Where one pass, vs another are almost identical, yet one will be full of
stations, and the next one all I hear is my own CQ.
BUT... that difference can be all made by just who is actually on the air.
BUT.... then take two passes that are almost identical, and ignore all
the other people, and pay attention to just your own signal, where on
this pass my sig is soo weak that 90% of the time I'm hearing nothing,
then next pass that is very similar I am actually moving the S meter the
signal is sooo strong.
And in theroy, this is all Line Of Sight communications, the losses from
one pass vs another should be the same.
Yes polarity can be an issue, but I cant see it being the reason for the
whole pass duration.
Very Interesting!
Joe WB9SBD
--
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
------------------------------
Message: 10
Date: Fri, 7 Oct 2016 14:17:10 +0000 (UTC)
From: JoAnne Maenpaa <k9jkm@xxxxxxx.xxx>
To: Joe <nss@xxx.xxx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-07
Message-ID:
<773631578.16072709.1475849830315.JavaMail.zimbra@xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
This sounds like an excellent experiment for you to try and report your
results in an article for the AMSAT Journal!
--
73 de JoAnne K9JKM
----- Original Message -----
From: "Joe" <nss@xxx.xxx>
To: "amsat-bb" <amsat-bb@xxxxx.xxx>
Sent: Friday, October 7, 2016 9:11:03 AM
Subject: [amsat-bb] AO-07
I wonder if anyone has actually done any studies after all these years
on propagation's through this bird. AO-07
I find it in the past couple weeks soo interesting on how varied the
level of signal strengths can be on very similar passes.
Where one pass, vs another are almost identical, yet one will be full of
stations, and the next one all I hear is my own CQ.
BUT... that difference can be all made by just who is actually on the air.
BUT.... then take two passes that are almost identical, and ignore all
the other people, and pay attention to just your own signal, where on
this pass my sig is soo weak that 90% of the time I'm hearing nothing,
then next pass that is very similar I am actually moving the S meter the
signal is sooo strong.
And in theroy, this is all Line Of Sight communications, the losses from
one pass vs another should be the same.
Yes polarity can be an issue, but I cant see it being the reason for the
whole pass duration.
Very Interesting!
Joe WB9SBD
--
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 11, Issue 323
*****************************************
Read previous mail | Read next mail
| |
