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CX2SA > SATDIG 18.10.15 14:09l 924 Lines 31777 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Upcoming ARISS Contact Schedule as of 2015-10-15 07:30 UTC
(AJ9N@xxx.xxxx
2. Bring your DTMF HT to Amsat Symposium (Robert Bruninga)
3. WD9EWK @ IN/MI/OH border tripoint, now
(Patrick STODDARD (WD9EWK/VA7EWK))
4. Upcoming ARISS Contact Schedule as of 2015-10-15 19:30 UTC
(AJ9N@xxx.xxxx
5. Re: A tip for Gqrx users and report of the copy of
FIREBIRD-II FU3/4 19k2 FSK. (M.Sc. Pavel Milanes Costa)
6. Symposium streaming or recordings (Douglas Quagliana)
7. FoxTelem maxFreqBoundkHz Parameter? (Bob)
8. Re: Symposium streaming or recordings (Stephen E. Belter)
9. Re: Arrow Antenna (Rick Lindquist, WW1ME)
10. Re: Antenna Setup (Rupert Hamblin)
11. AO85 on Orbitron (John Geiger)
12. Re: Antenna Setup (Daniel Cussen)
----------------------------------------------------------------------
Message: 1
Date: Thu, 15 Oct 2015 03:55:45 -0400
From: AJ9N@xxx.xxx
To: sarex@xxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2015-10-15
07:30 UTC
Message-ID: <de13.28f73ac8.4350b601@xxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Upcoming ARISS Contact Schedule as of 2015-10-15 07:30 UTC
Quick list of scheduled contacts and events:
Bay View Elementary School, Burlington, WA, telebridge via IK1SLD
The ISS callsign is presently scheduled to be OR4ISS
The scheduled astronaut is Kjell Lindgren KO5MOS
Contact was successful: Wed 2015-10-14 19:41:44 UTC 59 deg (***)
Saku Children?s Science Dome for the Future, Saku City, Japan, direct via
8N?SDF
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Kimiya Yui KG5BPH
Contact is a go for: Thu 2015-10-22 09:47:21 UTC 62 deg
West Michigan Aviation Academy, Grand Rapids, MI, direct via W8ISS
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Kjell Lindgren KO5MOS
Contact is a go for: Thu 2015-10-22 17:10:02 UTC 36 deg
****************************************************************************
**
Interested in hosting an ARISS contact? The window is now open from
2015-09-01 to 2015-11-01. These proposals will be for school contacts
during the
second half of 2016. Go to http://www.arrl.org/hosting-an-ariss-contact
or http://www.ariss.org/apply-to-host-an-ariss-contact.html for full
details.
To help organizations in preparing their proposals, the ARISS Program
Coordinator will offer hour-long online information sessions. These are
designed to provide more information regarding US ARISS contacts and the
proposal
process and offer an opportunity to ask questions. While attending an
online information session is not required, it is strongly encouraged.
These will be offered Thursday, September 17, at 2000 UTC; Tuesday,
September 22, at 2000 UTC, and Wednesday, September 30, at 2300 UTC. Advance
registration is necessary. Email ARISS (ariss@xxxx.xxxx to sign up for an
information session.
****************************************************************************
**
>From 2015-12-20 to 2016-01-04, there will be no US Operational Segment
(USOS)
hams on board ISS. So any schools contacts during this period will be
conducted by the ARISS Russia team.
****************************************************************************
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.
****************************************************************************
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:
Gaston ON4WF with 121
Francesco IK?WGF with 114
Satoshi 7M3TJZ with 111
****************************************************************************
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 8061 date
and
time format YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of 2015-10-15 07:30 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 999. (***)
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 964. (***)
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is 46.
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, North Dakota, Rhode Island, South Dakota, Vermont,
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 2015-10-15 07:30 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. 43/44 on orbit
Scott Kelly
Mikhail Kornienko RN3BF
Exp. 44 on orbit
Oleg Kononenko RN3DX
Kimiya Yui KG5BPH
Kjell Lindgren KO5MOS
Exp. 45 on orbit
Sergey Volkov RU3DIS
****************************************************************************
73,
Charlie Sufana AJ9N
One of the ARISS operation team mentors
------------------------------
Message: 2
Date: Thu, 15 Oct 2015 10:23:12 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Bring your DTMF HT to Amsat Symposium
Message-ID: <4231a70423229b9698c4b9a2272f8219@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Bring your old DTMF HT to the AMSAT Symposium in Dayton this weekend if you
want to help test out the next DTMF satellite. The transponder will be at
the symposium and active all weekend.
All you have to do is preload your DTMF callsign and Grid Square into a
DTMF memory on your HT and you can then uplink to the satellite and make
QSO?s. The satellite responds with voice confirmation and an APRS downlink
to confirm the contact and to route it to the usual APRS web pages.
Info will be available on how to encode your callsign and grid into 16
digits total.
Or you can take a look here: http://aprs.org/qikcom-2.html
About half way down is how to encode your call.
Bob Bruninga
Wb4APR
------------------------------
Message: 3
Date: Thu, 15 Oct 2015 15:55:16 +0000
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] WD9EWK @ IN/MI/OH border tripoint, now
Message-ID:
<CAN6TEUcpDJ+tV37ZKZ3-2a9hhf2LBmofVwZVwxMBDtk0ov=0pA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hi!
I am now at the Indiana/Michigan/Ohio border tripoint in
grid EN71oq, and will work some SO-50 and FO-29 passes over
the next couple of hours. The tripoint is on a road, so I will
carry my radios out to the spot. Not the same as the Four
Corners in the southwestern USA, but at least I didn't have
to pay a few dollars to see the spot here.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @xxxxxx
------------------------------
Message: 4
Date: Thu, 15 Oct 2015 15:39:19 -0400
From: AJ9N@xxx.xxx
To: sarex@xxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2015-10-15
19:30 UTC
Message-ID: <1cd0f.69ae12e.43515ae7@xxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Upcoming ARISS Contact Schedule as of 2015-10-15 19:30 UTC
Quick list of scheduled contacts and events:
Saku Children?s Science Dome for the Future, Saku City, Japan, direct via
8N?SDF
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Kimiya Yui KG5BPH
Contact is a go for: Thu 2015-10-22 09:52:21 UTC 54 deg (***)
West Michigan Aviation Academy, Grand Rapids, MI, direct via W8ISS
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Kjell Lindgren KO5MOS
Contact is a go for: Thu 2015-10-22 17:14:55 UTC 40 deg (***)
****************************************************************************
**
Interested in hosting an ARISS contact? The window is now open from
2015-09-01 to 2015-11-01. These proposals will be for school contacts
during the
second half of 2016. Go to http://www.arrl.org/hosting-an-ariss-contact
or http://www.ariss.org/apply-to-host-an-ariss-contact.html for full
details.
To help organizations in preparing their proposals, the ARISS Program
Coordinator will offer hour-long online information sessions. These are
designed to provide more information regarding US ARISS contacts and the
proposal
process and offer an opportunity to ask questions. While attending an
online information session is not required, it is strongly encouraged.
These will be offered Thursday, September 17, at 2000 UTC; Tuesday,
September 22, at 2000 UTC, and Wednesday, September 30, at 2300 UTC. Advance
registration is necessary. Email ARISS (ariss@xxxx.xxxx to sign up for an
information session.
****************************************************************************
**
>From 2015-12-20 to 2016-01-04, there will be no US Operational Segment
(USOS)
hams on board ISS. So any schools contacts during this period will be
conducted by the ARISS Russia team.
****************************************************************************
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.
****************************************************************************
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:
Gaston ON4WF with 121
Francesco IK?WGF with 114
Satoshi 7M3TJZ with 111
****************************************************************************
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 8061 date
and
time format YYYY-MM-DD HH:MM:SS
The complete schedule page has been updated as of 2015-10-15 19:30 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 999.
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 964.
Each contact may have multiple schools sharing the same time slot.
Total number of ARISS supported terrestrial contacts is 46.
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, North Dakota, Rhode Island, South Dakota, Vermont,
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 2015-10-15 07:30 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. 43/44 on orbit
Scott Kelly
Mikhail Kornienko RN3BF
Exp. 44 on orbit
Oleg Kononenko RN3DX
Kimiya Yui KG5BPH
Kjell Lindgren KO5MOS
Exp. 45 on orbit
Sergey Volkov RU3DIS
****************************************************************************
73,
Charlie Sufana AJ9N
One of the ARISS operation team mentors
------------------------------
Message: 5
Date: Thu, 15 Oct 2015 18:02:38 -0400
From: "M.Sc. Pavel Milanes Costa" <co7wt@xxxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] A tip for Gqrx users and report of the copy of
FIREBIRD-II FU3/4 19k2 FSK.
Message-ID: <5620227E.3010107@xxxxxx.xx.xx>
Content-Type: text/plain; charset=windows-1252; format=flowed
Hi, some users have asked for pictures of this... so I share this on the BB
Thanks to Scott (K4KDR) that put them on-line for me (I have internet
problems here at the moment)
=========
Partial satellite sub-band in view, it's bigger than the BW of the RTL-SDR
https://www.dropbox.com/s/f0dsrdfspz4dhw6/Full%20satellite%20sub-band%20in%20v
iew%2C%20bigger%20than%20the%203.2Mhz%20RTL-SDR.png?dl=0
=========
Tracking Cute 1.7 (sat not in range) + Gpredict control
https://www.dropbox.com/s/argg4va9xudjo47/Tracking%20Cute%201.7.png?dl=0
========
Tracking phonesat 2.4 (no signal, end of the pass)
https://www.dropbox.com/s/kewdqkyga1x3xl2/Tracking%20phonesat%202.4.png?dl=0
========
Tracking phonesat 2.4 wide
https://www.dropbox.com/s/smoabjs9nuq3xhz/Tracking%20phonesat%202.4%20wide.png
?dl=0
=========
Tracking phonesat 2.4 wider...
https://www.dropbox.com/s/vx8frrzx8uiicoo/Tracking%20phonesat%202.4%20wider.pn
g?dl=0
========
Detail of two signals in the spectrum; the left is a terrestrial signal
(commercial?: more than one TX site/signal level, always there, no
doppler) and right is unknown...
https://www.dropbox.com/s/f8eleb1qobzr6dw/Two%20not-noise%20signals.png?dl=0
========
With this I see that there are some withe spaces on the sub-band, I have
to check the band plan of the IARU...
Enjoy, 73.
PS: antenna is a homebrew RHCP QH and homebrew preamplifier (not worth
to name it as "LNA", it's quite noisy but do the job....)
El 14/10/15 a las 23:24, M.Sc. Pavel Milanes Costa escribi?:
> I'm playing this night with my linux box and rtl-dsr + Gqrx + Gpredict
> to see the 70cm satellite sub-band...
>
> And found a way to identify the sat from the spectrum at a glance in
> 70cm using the bookmarks of gqrx... very handy feature of this
> software... just linux here, not know if windows sdr soft has this
> feature...
>
> After playing with satlist.csv (from
> http://www.ne.jp/asahi/hamradio/je9pel/satslist.htm) and parsing it to
> make it work with gqrx... I fire the Gqrx software, put up the antenna
> and watch for any suspicious signal... and the bookmarks on top of the
> signals are there, nice....
>
> ... (a few minutes after) ... haja !!!!
>
> A packet like signal around 437.4 Mhz, zoom it.... wow, to wide for
> normal packet... let's widen the filter to fit... ~25 Khz is enough,
> hum... it's bigger than 9600 bauds... lets see what the bookmarks on
> the screenm says... FIREBIRD-II FU4 19k2 FSK within the +/- 10khz of
> doppler... bingo !!!
>
> Let's run Gpredict to check.... right on the spot... and also
> FIREBIRD-II FU3 incoming on range... let's check... right...
>
> So if you use linux and some SDR hardware with Gqrx, you can use the
> bookmark function to this purpose, you can actually click & zoom and
> then read of the screen to approximate which is the satellite who tx
> that signal... all at a glance...
>
> If any of you want to play with this I can send you my bookmark file
> of the entire 70cm satellite sub-band, updated with the last info
> from http://www.ne.jp/asahi/hamradio/je9pel/satslist.htm just email
> me a private msg.
>
> I was not trying to decode, just to prove the usefulness of this
> feature, I use the latest gqrx & gpredict from ubuntu PPA.
>
> BTW, none of the FIREBIRD satellites are in the
> http://www.amsat.org/status/ page, so I can't update it's state.
>
> 73 from Cuba, CO7WT
> _______________________________________________
> 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: Thu, 15 Oct 2015 18:14:37 -0500
From: Douglas Quagliana <dquagliana@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Symposium streaming or recordings
Message-ID: <0343884C-FE64-4F4E-B2CD-B4FD9AF00155@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
Will any part of the Symposium be streamed on the Internet or recorded?
Regards,
Douglas
------------------------------
Message: 7
Date: Thu, 15 Oct 2015 19:27:25 -0400
From: Bob <WB4SON@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] FoxTelem maxFreqBoundkHz Parameter?
Message-ID:
<CAPonRZ_eaN3w2ekCmCZcc7DXRjmbikU6SiOq+Yf6GKonyj6bwg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hi,
I have a spur that appears around 145.993 MHz, thanksfully higher than I've
ever seen AO-85. With the default settings for Fox-1A, I will sometimes
find that it has locked onto the spur and misses all telemetry decodes if i
leave things unattended.
I went into the "FOX1A_fm.dat" file and saw that there was a parameter:
maxFreqBoundkHz=145990
i changed that to be (and restarted the program):
maxFreqBoundkHz=145985
I figured that with the spur now 8 KHz above the maximum frequency bound
there is no way the program would find the spur and lock onto it. However,
testing indicates that FoxTelem will still lock onto the spur despite a
lower maxFreqBoundkHz setting.
Perhaps I misunderstand what that is used for, or perhaps it is not working
as anticipated.
Any thoughts?
73, Bob, WB4SON
------------------------------
Message: 8
Date: Fri, 16 Oct 2015 01:51:44 +0000
From: "Stephen E. Belter" <seb@xxxxxx.xxx>
To: Douglas Quagliana <dquagliana@xxx.xxx>, "amsat-bb@xxxxx.xxxx
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Symposium streaming or recordings
Message-ID: <D245CFC8.54F37%seb@xxxxxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Douglas,
The plan is to record all of the presentations. With some luck, the
annual meeting will be streamed via EchoLink. I?ll know more tomorrow
after we have access to the ballroom.
73, Steve N9IP
--
Steve Belter, seb@xxxxxx.xxx
On 10/15/15, 7:14 PM, "AMSAT-BB on behalf of Douglas Quagliana via
AMSAT-BB" <amsat-bb-bounces@xxxxx.xxx on behalf of amsat-bb@xxxxx.xxx>
wrote:
>Will any part of the Symposium be streamed on the Internet or recorded?
>
>Regards,
>Douglas
>_______________________________________________
------------------------------
Message: 9
Date: Wed, 14 Oct 2015 10:15:45 -0400
From: "Rick Lindquist, WW1ME" <ww1me@xxxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Arrow Antenna
Message-ID: <003501d1068a$d14923e0$73db6ba0$@xxx>
Content-Type: text/plain; charset="us-ascii"
Amen. I have an Alaskan Arrow with the duplexer (and have yet to work anyone
with it, but it hears pretty well). It is not for the elderly or faint of
heart, at least if you plan to hold it. I tried mounting it on my camera
tripod, but it was so heavy that it popped the mount right out of the
holder, so I guess I need a more rugged tripod. Any suggestions? Not sure
what to do with it at this point<g>. One big issue for me regarding this
antenna is that the elements don't stay screwed in. I suppose I could use
some Loctite, but I'd also like to be able to take it apart at some point.
Rick, WW1ME
-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of J. Boyd
(JR2TTS)
Sent: Tuesday, October 13, 2015 2:33 AM
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Arrow Antenna
On Mon, 12 Oct 2015 23:24:32 -0700, Bryan Green <bryan@xxxxx.xxx> wrote:
> I really gotta get one of those ALASKAN Arrows.
Pros: Having those extra elements makes it so much easier to lock onto a
bird and reach it with less power.
Cons: It weighs as much as a baseball bat. Holding one of those things up in
the air for fourteen minutes and your arms will look like Popeye the Sailor
Man at LOS. You're going to need a tripod, or at least a camera monopod to
brace it against the ground.
--
J. Boyd, JR2TTS/NI3B
the2belo@xxx.xxxxxxx.xx.xx
http://www.flickr.com/photos/the2belo/
http://www.qrz.com/db/JR2TTS
Twitter: @xxxxxxxx
_______________________________________________
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: 10
Date: Wed, 14 Oct 2015 19:24:59 +0100
From: Rupert Hamblin <rupert.hamblin@xxxxx.xxx>
To: Lou Michaels <w2lmm.qsl@xxxxx.xxx>, amsat-bb@xxxxx.xxxx
peter@xxxxx.xxxx g0mrf@xxx.xxx
Subject: Re: [amsat-bb] Antenna Setup
Message-ID: <561E9DFB.3040500@xxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Hi Guys,
Really appreciate all your comments / feedback here, just one additional
question from me,
In real world / every day use - what difference does using X-Pol (Cross
Polarized) antennas versus
a straight beam mounted vertically ? - How much of a difference does it
make to the received
signals ?
Thanks again for your thoughts..
Cheers
RH
G0TKZ
On 14/10/2015 03:47, Lou Michaels wrote:
> Hey Rupert
>
> Here's the list I am working with on my ground tests, which have been
> going well:
>
> |Yaesu G5500 Az.El Rotor
> Fox Delta SatTracker 2 RS232 Interface
> Arrow II dual band yagi
> Arrow II Mast Mount
> Comet CF416 Duplexer
> 3 Foot Tripod (Radio Shaft)
> 2 x 5 foot mast (Radio Shaft)
> Andrew Heliax FSJ2-50
> Yaesu 8800 for FM birds (complete station will use Icom 9100)
> 2 x 60ft Rotor Control Cable (DX Engineering)
> |
>
> The above is basically the portable setup. I could take it anywhere to
> work an FM bird. I thought of trying some EME with JT65. Buddy of mine
> has the rig, amp, and Cushcraft yagi that would get the job done.
>
> I'm waiting for the two antennas to be delivered. My ground tests
> should be done by the time they arrive, so I'll do one or two more
> ground tests with them, then put everything on the roof.
>
> The antennas I'm going with are available in a package, but are under
> production (m2 doesn't keep stock apparently) - M2 LEO Pack:
>
> |M2 2MCP8A 4x4 Circularly Polarized 2m Yagi
> M2 436CP16 8x8 Circularly Polarized 70cm Yagi
> |
>
> And in the future I'll be adding preamps, but sitting on them for now.
> For some weak birds, preamps would be very helpful.
>
> As far as software used in the sat shack:
>
> |SATPC32 - Tracks birds and controls VFO
> Orbitron - Alternative Sat tracking - much better interface
> UISS - Used for ISS APRS
> SoundModem - Software TNC for APRS
> VSPE - needed for COM port sharing / routing (a real bitch)
> ICOM Keyer - app to key radio for APRS
> Ham Radio Deluxe - Digital Modes & Basic Sat Tracking
> |
>
> And as far as online resources:
>
> |Online tracking
>
> www.heavens-above.com <http://www.heavens-above.com>
> www.N2Yo.com <http://www.N2Yo.com>
> http://www.amsat.org/amsat-new/tools/predict/index.php
>
> Find Modes & Frequencies
>
> http://www.ne.jp/asahi/hamradio/je9pel/satslisf.htm||
> ||Hope this gives you some insight :)|
>
> On Tue, Oct 13, 2015 at 5:16 PM, Rupert Hamblin
> <rupert.hamblin@xxxxx.xxx <mailto:rupert.hamblin@xxxxx.xxx>> wrote:
>
> Hi AMSAT,
>
> I am looking for some guidance regards antenna setup for a fixed
> installation to work both FM sats & linear transponder satellites.
>
> My initial thought was:
>
> AZ / EL Rotator
> 2M xpol beam 5 ele ?
> 70cm xpol beam 9 ele ?
> LNA for both 2M & 70cm receive feeds
> ...plus some spare space on the boom, perhaps for 3 ele for LEO wx
> sats..?
>
> I appreciate this will probably cost a few $$ - but hopefully worth
> it....obviously
> won't build all this in one go..!
>
> Appreciate your thoughts / comments here..?
>
> Regards
>
> RH
> G0TKZ
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx <mailto: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: 11
Date: Thu, 15 Oct 2015 18:59:02 -0500
From: John Geiger <af5cc2@xxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AO85 on Orbitron
Message-ID:
<CAHC1P28HmKWe6M0Aq=y2Pn-tN7eV+ook_h40VNZ1QxUsnEOq_w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I am using Orbitron for satellite tracking, and just updated the keps (I
haven't used it in a while). They new Chinese satellites are appearing for
satellites to select, but I can't find AO85 on it. Is anyone else using
Orbitron and if so, what is it calling our new FM satellite?
73 John AF5CC
------------------------------
Message: 12
Date: Fri, 16 Oct 2015 14:32:13 +0100
From: Daniel Cussen <dan@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Antenna Setup
Message-ID:
<CAF3DnKh4fY3hWFn2HX1LCKJm-KLnfd1o5fEUeFiZU-_eE=3O4A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
>ll your comments / feedback here, just one additional
> question from me,
> In real world / every day use - what difference does using X-Pol (Cross
> Polarized) antennas versus
> a straight beam mounted vertically ? - How much of a difference does it
> make to the received
> signals ?
This is the best site I have seen with good explanations:
http://sv1bsx.50webs.com/antenna-pol/polarization.html
Many/most satellites are not true polarised sources, rather just omni
antennas on one side. Often they are not controlled so they spin and
twist. As a result they can appear to change from vertical to
horizontal to LHCP to RHCP.
If you have circular, and the satellite is linear, the worst case
(according to the chart) is 3dB. while if you are vertical at the
satellite appears horizontal the worst case it 30dB. So in normal use,
you can change from 30dB fading to 3dB fading.
Some polarisation switches have the option to remotely change from
RHCP to LHCP to vertical and horizontal. Thus you can compare them all
such as wimos unit:
http://www.wimo.com/download/1808xx.pdf
Sometimes even true circular polarised sources, can reflect off
something, (e.g. the solar panels on the ISS) and suddenly a RHCP can
become LHCP.
So I think the answer is if you see sudden fading in the middle of a
pass, it may be due to difference of polarisation, but sometimes it is
dues to the antenna pattern of the transmit antenna being away from
the Earth side of the satellite. The only way to know for sure is to
switch polarisations quickly and compare.
I would consider it if buying a new beam and if you have elevation
control. Circular is also useful for ground contacts as DX stations
tend to use Horizontal Beams, and mobile and base tend to be vertical
omni. With RHCP you only have a 3dB loss to either user at the other
end.
------------------------------
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 10, Issue 313
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