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CX2SA > SATDIG 23.02.17 15:57l 924 Lines 31488 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Automated station (Vincenzo Mone)
2. Re: Yagi Stacking, (Joe)
3. Hackaday Article On Antennas For Martian Cubesats (B J)
4. ARISS Contact Update (n4csitwo@xxxxxxxxx.xxxx
5. NO-84 (skristof@xxxxxxx.xxxx
6. Re: NO-84 (Paul Stoetzer)
7. Upcoming ARISS Contact Schedule as of 2017-02-23 05:00 UTC
(AJ9N@xxx.xxxx
8. solar panels (Nick Pugh)
9. Re: NO-84 (Mike Rupprecht)
10. Re: NO-84 (skristof@xxxxxxx.xxxx
11. Re: NO-84 (Joe)
12. Re: solar panels (Robert Bruninga)
----------------------------------------------------------------------
Message: 1
Date: Wed, 22 Feb 2017 10:21:48 +0100
From: Vincenzo Mone <vimone@xxxxx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Automated station
Message-ID: <2C249834-13E0-4AB9-B930-91D39F7DAFA6@xxxxx.xx>
Content-Type: text/plain; charset=us-ascii
Hi all,
Is there anybody that does satellites in automatic with a Kenwood TS-2000X?
I mean as all in unattended.
Before I have used a Kenwood TS-790E with the Trakbox and the TS-790 was
attached via the ACC1 port.
Now the new TS-790 does not have anymore that port and do not know how to
attach it or how to do to make all automated again.
Any help will be really appreciated
73's de Enzo IK8OZV
************************************
****** GSM +39 328 7244294 *****
***** SMS +39 328 7244294 *****
************************************
------------------------------
Message: 2
Date: Wed, 22 Feb 2017 08:20:19 -0600
From: Joe <nss@xxx.xxx>
To: Greg D <ko6th.greg@xxxxx.xxx>, Dave Mann <cwo4mann@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Yagi Stacking,
Message-ID: <1ace8870-e08e-5bfe-8d89-52f96c73d0ca@xxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Awesome Greg,
Thats what I was thinking, 1/2 of each's capture area. added together
makes them minimum apart.
You made ( or someone) made a comment about 10 meters screwing up NO-84.
Does it really attenuate it that much?
I have been playing with NO-84 for quite a while.
Reason asking is My 10 meter side has been no problem, even 5 watts, is
enough to activate her. My weak side has been the recv.
But Sunday I put together a 70 cm 9 ele beam and listened and on both
passes not only was it full quieting it was FULL SCALE!!
Then at the Monday passes this I was ready for transmit too.
I listened first and heard nothing, about mid through the pass way I
started transmitting, and nothing at 5 watts, 20,, 50 and even 100 not
once did she come awake.
Does this happen?
joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 2/21/2017 11:04 PM, Greg D wrote:
> Hi Dave, Joe,
>
> According to the fine print, the formula is for antennas more than about
> 10 elements, and boom lengths 2 wl and longer. Dave's 3 element 2m beam
> doesn't quite qualify. Joe, you're probably ok, but still...
>
> I'd put them as far apart as is practical, and not worry so much about
> the math. How long is your cross arm? 6 or 8 feet? Start there.
> These are relatively blunt instruments; don't over-think it. :)
>
> To Joe's numbers, two of the 65's would be placed 65 (what, inches?)
> apart, or about 5'. By the ideal different bands diagram, the mixed
> pair would be half of 65 plus half of 123, or 94 apart, or about 8'.
> But the different bands practical diagram says, basically, anything
> farther than half of whichever is the higher band's distance, so if
> that's the 123 antenna, about 5'. So, like I said, 6-8 feet is probably
> fine.
>
> Greg KO6TH
>
>
> Joe wrote:
>> Now when using that formula on that page,
>> And you get an answer of 65 for one antenna and 123 for another,
>>
>> Now if they were identical antennas IE the 65, I would place the two
>> 65 apart correct?
>>
>> Now if one is 65 and the other is 123, what should be the optimum
>> spacing?
>>
>> Joe WB9SBD
>> Sig
>> The Original Rolling Ball Clock
>> Idle Tyme
>> Idle-Tyme.com
>> http://www.idle-tyme.com
>> On 2/21/2017 2:44 PM, Mike Thompson wrote:
>>> I replied to this earlier, but I thought it would be worth sending to
>>> the
>>> whole board.
>>> The idea is to get each antenna out of the aperture of a smaller
>>> antenna as
>>> much as possible.
>>>
>>> Hope this helps.
>>>
>>> http://www.ifwtech.co.uk/g3sek/stacking/stacking2.htm
>>>
>>> On Tue, Feb 21, 2017 at 1:01 PM, Dave Mann <cwo4mann@xxxxxxx.xxx> wrote:
>>>
>>>> Same Question here, RE placing the two 2-M Yagis directly next to each
>>>> other and 90 degree angles.
>>>>
>>>> I read where I can put both of my Cushcraft 3-element Yagis together,
>>>> spacing the elements on one so that they are ahead or behind the
>>>> other set
>>>> of elements. Then binding the two Yagi booms together. Feed line
>>>> would be
>>>> one 1/4 wave and one 1/2 wave, "I think". Then the two feed lines
>>>> would be
>>>> soldered together and attached to a PL-259.
>>>>
>>>> I put a couple of photos of my construction project on the AMSAT
>>>> Facebook
>>>> page, but it only shows the 70cm Cushcraft Circularly Polarized Yagi
>>>> at one
>>>> end of the cross-boom and a single 3-element Cushcraft Yagi at the
>>>> other
>>>> end of the cross-member.
>>>>
>>>> I originally placed the second 2-m Yagi at a 1/4 wavelength away
>>>> from the
>>>> end Yagis, but saw some pretty high SWR readings on both the 70cm
>>>> and on
>>>> both 2-m Yagis.
>>>>
>>>> This is more difficult to explain in writing than to actually do. I
>>>> will
>>>> get some photos up to my Ham Radio DropBox account and post the link
>>>> here,
>>>> "real soon now". Photos here might be more illustrative than my
>>>> written
>>>> explanation (pun intended).
>>>>
>>>> I appreciate all of the comments and other advice received here and
>>>> on the
>>>> Facebook AMSAT page.
>>>>
>>>> -------------------------
>>>>
>>>> Esto es para mis amigos de habla hispana:
>>>>
>>>> La misma pregunta aqu?, RE colocando los dos Yagis 2-M directamente al
>>>> lado del otro y ?ngulos de 90 grados.
>>>>
>>>> Le? donde puedo poner ambos de mis Cushcraft de 3 elementos Yagis
>>>> juntos,
>>>> espaciando los elementos en uno para que est?n por delante o detr?s del
>>>> otro conjunto de elementos. Luego se unen las dos barras de Yagi. La
>>>> l?nea
>>>> de alimentaci?n ser?a una onda 1/4 y una onda 1/2, "creo". A
>>>> continuaci?n,
>>>> las dos l?neas de alimentaci?n se soldar?an juntas y se unir?an a un
>>>> PL-259.
>>>>
>>>> Puse un par de fotos de mi proyecto de construcci?n en la p?gina de
>>>> Facebook de AMSAT, pero s?lo muestra los 70cm Cushcraft circularmente
>>>> polarizado Yagi en un extremo de la cruz-boom y un solo 3-elemento
>>>> Cushcraft Yagi en el otro extremo de la cruz- miembro.
>>>>
>>>> En un principio coloc? el segundo 2-m Yagi a una longitud de onda 1/4
>>>> lejos del extremo Yagis, pero vi algunas lecturas bastante altas de
>>>> SWR en
>>>> ambos los 70cm y en ambos 2-m Yagis.
>>>>
>>>> Esto es m?s dif?cil de explicar por escrito que hacerlo. Voy a obtener
>>>> algunas fotos hasta mi Ham Radio DropBox cuenta y publicar el enlace
>>>> aqu?,
>>>> "muy pronto". Las fotos aqu? pueden ser m?s ilustrativas que mi
>>>> explicaci?n
>>>> escrita (juego de palabras).
>>>>
>>>> Agradezco todos los comentarios y otros consejos recibidos aqu? y en la
>>>> p?gina de Facebook AMSAT.
>>>>
>>>> 73's
>>>>
>>>> Dave
>>>> N4CVX
>>>>
>>>>
>>>>
>>>>
>>>> On 02/21/2017 10:23 AM, Joe wrote:
>>>>
>>>>> OK using this image as a reference,
>>>>>
>>>>> http://i67.tinypic.com/28mpzkh.jpg
>>>>>
>>>>> Ok the yagis are 8 elements on 2 meters and 21 elements on 70 cm.
>>>>> Similar boom lengths.
>>>>>
>>>>> Now when vertically polarized and stacked side by side as in the top
>>>>> picture how close can they get to each other before starting to mess
>>>>> with each other.
>>>>>
>>>>> Same thing in next image but horizontally polarized so above and below
>>>>> each other.
>>>>>
>>>>> Now if they are 90 deg in rotation IE: one is vertically polarized and
>>>>> the other horizontal, I'm thinking they could even be on the same boom
>>>>> correct?
>>>>>
>>>>> So that brings in the third drawing same antennas but at 45 deg to the
>>>>> horizon but 90 to each other, How close can they get without
>>>>> bugging the
>>>>> other?
>>>>>
>>>>> Now with the 45 deg angle thing, how much will a metal cross boom
>>>>> mess
>>>>> with them?
>>>>>
>>>>> Joe WB9SBD
>>>>>
>>>> _______________________________________________
>>>> 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
>>>>
>>> _______________________________________________
>>> 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
>> _______________________________________________
>> 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: 3
Date: Wed, 22 Feb 2017 15:59:53 +0000
From: B J <va6bmj@xxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Hackaday Article On Antennas For Martian Cubesats
Message-ID:
<CAP7QzkMu+1CFPw9Z-EOHYu0Ouqzy6pBEfyCqVk3OOsytPr6=ZQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
http://hackaday.com/2017/02/22/interview-nacer-chahat-designs-antennae-for-mar
s-cubesats/
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 4
Date: Wed, 22 Feb 2017 17:45:44 -0500
From: <n4csitwo@xxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>, <ariss-press@xxxxx.xxx>, "amsat-edu"
<amsat-edu@xxxxx.xxx>
Subject: [amsat-bb] ARISS Contact Update
Message-ID: <A82AA0B3AC3E486D93E01C0F4F14F398@xxx>
Content-Type: text/plain; charset="iso-8859-1"
IMPORTANT ARISS UPDATE:
Tomorrow's ARISS contact with Ecole primaire Elie Desplan, Boissieres,
France and Marie Castang, Saint Dionisy, France for 08:31 UTC has been
cancelled. The contact will be rescheduled for a later date.
Dave, AA4KN
ARISS PR
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
------------------------------
Message: 5
Date: Wed, 22 Feb 2017 18:30:54 -0500
From: skristof@xxxxxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] NO-84
Message-ID: <189355037bc48e52a618e03f7a94cdab@xxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII
NO-84 seems to have its ears turned off for the few days. Anyone know
what's happening there?
Steve AI9IN
------------------------------
Message: 6
Date: Wed, 22 Feb 2017 18:35:19 -0500
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: Steve Kristoff <skristof@xxxxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] NO-84
Message-ID:
<CABzOSOr0sqMYy1bW2BmVeZic15CcOe0-3r+6BF2L64xwotyTqw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
The power budget of the satellite is not able to sustain both the
digipeater and the PSK31 transponder throughout all parts of the
orbit. When the battery voltage drops below a certain threshold, the
secondary mission of the satellite, the digipeater, is shut off. The
primary mission, the PSK31 transponder, remains operational.
When the eclipse percentage of the orbit drops, one of the command
stations will turn the digipeater on again.
73,
Paul, N8HM
On Wed, Feb 22, 2017 at 6:30 PM, <skristof@xxxxxxx.xxx> wrote:
> NO-84 seems to have its ears turned off for the few days. Anyone know
> what's happening there?
>
> Steve AI9IN
> _______________________________________________
> 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: Thu, 23 Feb 2017 00:39:14 -0500
From: AJ9N@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Upcoming ARISS Contact Schedule as of 2017-02-23
05:00 UTC
Message-ID: <161d95f.6da566be.45dfcf82@xxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Upcoming ARISS Contact Schedule as of 2017-02-23 05:00 UTC
Quick list of scheduled contacts and events:
John Glenn Middle School, Maplewood MN, direct via K?JDD
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Shane Kimbrough KE5HOD
Contact was successful: Wed 2017-02-22 18:47:59 UTC 25 deg (***)
Ecole primaire Elie Desplan, Boissi?res, France and Marie Castang, Saint
Dionisy, France, direct via F4HHV
The ISS callsign is presently scheduled to be FX?ISS
The scheduled astronaut is Thomas Pesquet KG5FYG
Contact is a go for: Thu 2017-02-23 08:31:45 UTC 48 deg
Ecole Albert Camus, Rueil-Malmaison, France, College Marcel Pagnol,
Rueil-Malmaison, France, and Ecole ?Robespierre B.?, Rueil-Malmaison, France,
direct via F6KFA
The ISS callsign is presently scheduled to be FX?ISS
The scheduled astronaut is Thomas Pesquet KG5FYG
Contact is a go for: Wed 2017-03-01 08:04:44 UTC 77 deg
Student Space Technology Association, Knoxville, TN, direct via AA4UT
The ISS callsign is presently scheduled to be NA1SS
The scheduled astronaut is Shane Kimbrough KE5HOD
Contact is a go for: Wed 2017-03-01 19:08:03 UTC 49 deg
****************************************************************************
**
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.
****************************************************************************
***
Message to US Educators
Amateur Radio on the International Space Station
Contact Opportunity
Call for Proposals
Proposal Window February 15 ? April 15, 2017
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 January 1, 2018 and June 30, 2018. 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 April 15, 2017. Proposal information
and documents can be found at www.arrl.org/hosting-an-ariss-contact.
The Opportunity
Crew members aboard the International Space Station will participate in
scheduled Amateur Radio contacts. These radio contacts are approximately 10
minutes in length and allow students to interact with the astronauts through
a question-and-answer session.
An ARISS contact is a voice-only communication opportunity via Amateur
Radio between astronauts and cosmonauts aboard the space station and
classrooms and communities. ARISS contacts afford education audiences the
opportunity to learn firsthand from astronauts what it is like to live and
work in
space and to learn about space research conducted on the ISS. Students also
will have an opportunity to learn about satellite communication, wireless
technology, and radio science. Because of the nature of human spaceflight and
the complexity of scheduling activities aboard the ISS, organizations must
demonstrate flexibility to accommodate changes in dates and times of the
radio contact.
Amateur Radio organizations around the world, NASA, and space agencies in
Russia, Canada, Japan and Europe sponsor this educational opportunity by
providing the equipment and operational support to enable direct
communication between crew on the ISS and students around the world via
Amateur Radio.
In the US, the program is managed by AMSAT (Radio Amateur Satellite
Corporation) and ARRL (American Radio Relay League) in partnership with
NASA and
CASIS (Center for the Advancement of Science in Space).
More Information
Interested parties can find more information about the program at
www.ariss.org and www.arrl.org/ARISS.
For proposal information and more details such as expectations, proposal
guidelines and proposal form, and dates and times of Information Sessions go
to http://www.arrl.org/hosting-an-ariss-contact.
Please direct any questions to ariss@xxxx.xxx.
****************************************************************************
***
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 Kenwood 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 123
Francesco IK?WGF with 119
****************************************************************************
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 2017-02-23 05:00 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
http://www.amsat.org/amsat/ariss/news/arissnews.txt
Total number of ARISS ISS to earth school events is 1116. (***)
Each school counts as 1 event.
Total number of ARISS ISS to earth school contacts is 1080. (***)
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 2017-02-23 05:00 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. 49 on orbit
Shane Kimbrough KE5HOD
Andrei Borisenko
Sergey Ryzhikov
Exp. 50 on orbit
Peggy Whitson
Thomas Pesquet KG5FYG
Oleg Novitskiy
****************************************************************************
73,
Charlie Sufana AJ9N
One of the ARISS operation team mentors
------------------------------
Message: 8
Date: Thu, 23 Feb 2017 02:51:55 -0600
From: "Nick Pugh" <quadpugh@xxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] solar panels
Message-ID: <020301d28db2$18098d60$481ca820$@xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hello List
Spectra Labs discontinued producing the TASC solar cells. We are looking for
alternative or teams that might have surplus cells. I have heard about
company that sells left over cutting of cells. We appreciate any
information you have regarding small cells.
nick k5qxj
------------------------------
Message: 9
Date: Thu, 23 Feb 2017 12:34:59 +0100
From: "Mike Rupprecht" <mail@xxxxxxxxxxxxxx.xx>
To: "'Paul Stoetzer'" <n8hm@xxxx.xxx>, "'Steve Kristoff'"
<skristof@xxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] NO-84
Message-ID: <000301d28dc8$de54f110$9afed330$@xx>
Content-Type: text/plain; charset="iso-8859-1"
Well, I tried to explain it here: http://www.dk3wn.info/p/?p=77524
73 Mike
DK3WN
-----Urspr?ngliche Nachricht-----
Von: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx Im Auftrag von Paul
Stoetzer
Gesendet: 23 February 2017 00:35
An: Steve Kristoff
Cc: amsat-bb@xxxxx.xxx
Betreff: Re: [amsat-bb] NO-84
The power budget of the satellite is not able to sustain both the digipeater
and the PSK31 transponder throughout all parts of the orbit. When the
battery voltage drops below a certain threshold, the secondary mission of
the satellite, the digipeater, is shut off. The primary mission, the PSK31
transponder, remains operational.
When the eclipse percentage of the orbit drops, one of the command stations
will turn the digipeater on again.
73,
Paul, N8HM
On Wed, Feb 22, 2017 at 6:30 PM, <skristof@xxxxxxx.xxx> wrote:
> NO-84 seems to have its ears turned off for the few days. Anyone know
> what's happening there?
>
> Steve AI9IN
> _______________________________________________
> 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
_______________________________________________
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: Thu, 23 Feb 2017 06:41:15 -0500
From: skristof@xxxxxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] NO-84
Message-ID: <5df9bb2998d65a6e75f226735fed2fcf@xxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Thanks to both Paul and Mike for excellent information!
Steve AI9IN
On 2017-02-23 06:34, Mike Rupprecht wrote:
> Well, I tried to explain it here: http://www.dk3wn.info/p/?p=77524
>
> 73 Mike
> DK3WN
>
> -----Urspr?ngliche Nachricht-----
> Von: AMSAT-BB [mailto:amsat-bb-bounces@xxxxx.xxxx Im Auftrag von Paul
> Stoetzer
> Gesendet: 23 February 2017 00:35
> An: Steve Kristoff
> Cc: amsat-bb@xxxxx.xxx
> Betreff: Re: [amsat-bb] NO-84
>
> The power budget of the satellite is not able to sustain both the digipeater
> and the PSK31 transponder throughout all parts of the orbit. When the
> battery voltage drops below a certain threshold, the secondary mission of
> the satellite, the digipeater, is shut off. The primary mission, the PSK31
> transponder, remains operational.
>
> When the eclipse percentage of the orbit drops, one of the command stations
> will turn the digipeater on again.
>
> 73,
>
> Paul, N8HM
>
> On Wed, Feb 22, 2017 at 6:30 PM, <skristof@xxxxxxx.xxx> wrote:
>
>> NO-84 seems to have its ears turned off for the few days. Anyone know
>> what's happening there?
>>
>> Steve AI9IN
>> _______________________________________________
>> 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.
>
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>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> 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: 11
Date: Thu, 23 Feb 2017 07:34:08 -0600
From: Joe <nss@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] NO-84
Message-ID: <291093db-f849-5862-c2b9-be0bf81b7474@xxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
Hi Paul,
Are your sure? Or Possibly it is the other way around? Where the PSK is
what gets shut off?
Reason asking is My 10 meter side has been no problem, even 5 watts, is
enough to activate her. My weak side has been the recv.
But Sunday I put together a 70 cm 9 ele beam and listened and on both
passes not only was it full quieting it was FULL SCALE!!
Then at the 00Z pass this evening I was ready for transmit too.
I listened first and heard nothing, about mid way I started
transmitting, and nothing at 5 watts, 20,, 50 and even 100 not once did
she come awake.
Does this happen?
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 2/22/2017 5:35 PM, Paul Stoetzer wrote:
> The power budget of the satellite is not able to sustain both the
> digipeater and the PSK31 transponder throughout all parts of the
> orbit. When the battery voltage drops below a certain threshold, the
> secondary mission of the satellite, the digipeater, is shut off. The
> primary mission, the PSK31 transponder, remains operational.
>
> When the eclipse percentage of the orbit drops, one of the command
> stations will turn the digipeater on again.
>
> 73,
>
> Paul, N8HM
>
> On Wed, Feb 22, 2017 at 6:30 PM, <skristof@xxxxxxx.xxx> wrote:
>> NO-84 seems to have its ears turned off for the few days. Anyone know
>> what's happening there?
>>
>> Steve AI9IN
>> _______________________________________________
>> 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
> _______________________________________________
> 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: 12
Date: Thu, 23 Feb 2017 08:46:24 -0500
From: Robert Bruninga <bruninga@xxxx.xxx>
To: Nick Pugh <quadpugh@xxxxxxxxx.xxx>, amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] solar panels
Message-ID: <e70bd8e0aeb953db9c4eb4dbc63cbc03@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
We found a place at SMALSAT conf that sells full size UTJ rejects for $50
each instead of $500 each. Only problem is they don't have cover glass.
And minimum order is $7500. But we are asking them for a $3000 quote
since that is the government credit card maximum.
And they don't respond to emails.... sheesh... If I ever get a quote, ill
let you know.
Bob
> Spectra Labs discontinued producing the TASC solar cells. We are looking
for alternative or teams that might have surplus cells. I have heard about
company that sells left over cutting of cells. We appreciate any
information you have regarding small cells.
nick k5qxj
_______________________________________________
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 12, Issue 49
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