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CX2SA > SATDIG 03.10.17 04:46l 964 Lines 32347 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: TUning the antennas on a Cubesat (Robert McGwier)
2. Re: TUning the antennas on a Cubesat (Arthur Feller, W4ART)
3. Re: TUning the antennas on a Cubesat (Robert Bruninga)
4. VUCC Awards/Endorsements for September 2017 (John Papay)
5. Re: VUCC Awards/Endorsements for September 2017 (R.T.Liddy)
6. Re: Falconsat-3 and APRS HT's? (Greg D)
7. Special ARISS News Release no. 17-01 (n4csitwo@xxxxxxxxx.xxxx
8. Roving Again This Weekend (Ken Alexander)
9. Falcon sat (Andrew Rich)
10. Re: Falcon sat (Rick Kowalewski)
----------------------------------------------------------------------
Message: 1
Date: Mon, 2 Oct 2017 16:27:20 -0400
From: Robert McGwier <rwmcgwier@xxxxx.xxx>
To: Franklin Antonio <antonio@xxx.xxxxxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>, Jin Kang
<kang@xxxx.xxx>
Subject: Re: [amsat-bb] TUning the antennas on a Cubesat
Message-ID:
<CA+K5gzcjhGicxqNLsPwLD-L_1PMG7xKxHMB4jEZxriSMjk0T7Q@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
Yes
On Thu, Sep 28, 2017 at 5:02 PM, Franklin Antonio <antonio@xxx.xxxxxxxx.xxx>
wrote:
> Can't you just tune for maximum signal level received, and bypass
> measuring SWR?
>
> ________________________________________
> From: AMSAT-BB <amsat-bb-bounces@xxxxx.xxx> on behalf of Robert Bruninga <
> bruninga@xxxx.xxx>
> Sent: Thursday, September 28, 2017 1:25 PM
> To: amsat-bb@xxxxx.xxx
> Cc: Jin Kang
> Subject: [amsat-bb] TUning the antennas on a Cubesat
>
> Someone asked me how to tune the antennas on a cubesat without the
> instrumentation totally becoming part of the antenna system itself?
>
>
>
> I said you have to put the SWR instrument inside the cubesat as we did
> here: http://aprs.org/PSAT2/SWR-testing-0160x.jpg
>
>
>
> But that only works on a 1.5U cubesat where and MFJ Antenna Analyzer will
> fit!
>
>
>
> The other method is to just put in a bidirectional coupler chip, and then
> feed the forward and reflected voltage taps to the internal cubesat
> telemetry system and then compute the SWR from these two Forward and
> Reflected power telemetry channels.
>
>
>
> 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
> _______________________________________________
> 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
>
--
Bob McGwier
Founder, Federated Wireless, Inc
Founder and Technical Advisor, HawkEye 360, Inc
Research Professor Virginia Tech
Chief Scientist: The Ted and Karyn Hume Center for National Security and
Technology
Senior Member IEEE, Facebook: N4HYBob, ARS: N4HY
Faculty Advisor Virginia Tech Amateur Radio Assn. (K4KDJ)
Director of AMSAT
Member of PVRC (Roanoke-Blacksburg), TAPR, life member of ARRL and AMSAT,
NRVR.ORG (Rocketry)
------------------------------
Message: 2
Date: Mon, 2 Oct 2017 16:34:24 -0400
From: "Arthur Feller, W4ART" <afeller@xxxx.xxx>
To: McGwier Robert <rwmcgwier@xxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>, Jin Kang
<kang@xxxx.xxx>
Subject: Re: [amsat-bb] TUning the antennas on a Cubesat
Message-ID: <FE02B652-9C0F-4D3A-9A93-92D9E8BECB53@xxxx.xxx>
Content-Type: text/plain; charset=utf-8
Bob, doesn?t this assume a perfectly resistive load presented by the
antenna? If the antenna presents a reactive load, it will be non-linear, so
a peak on the fundamental may well result in spurious emissions. No?
73, art?..
W4ART Arlington VA
> On 2-Oct-2017, at 04:27 PM, Robert McGwier <rwmcgwier@xxxxx.xxx> wrote:
>
> Yes
>
> On Thu, Sep 28, 2017 at 5:02 PM, Franklin Antonio <antonio@xxx.xxxxxxxx.xxx>
> wrote:
>
>> Can't you just tune for maximum signal level received, and bypass
>> measuring SWR?
>>
>> ________________________________________
>> From: AMSAT-BB <amsat-bb-bounces@xxxxx.xxx> on behalf of Robert Bruninga <
>> bruninga@xxxx.xxx>
>> Sent: Thursday, September 28, 2017 1:25 PM
>> To: amsat-bb@xxxxx.xxx
>> Cc: Jin Kang
>> Subject: [amsat-bb] TUning the antennas on a Cubesat
>>
>> Someone asked me how to tune the antennas on a cubesat without the
>> instrumentation totally becoming part of the antenna system itself?
>>
>>
>>
>> I said you have to put the SWR instrument inside the cubesat as we did
>> here: http://aprs.org/PSAT2/SWR-testing-0160x.jpg
>>
>>
>>
>> But that only works on a 1.5U cubesat where and MFJ Antenna Analyzer will
>> fit!
>>
>>
>>
>> The other method is to just put in a bidirectional coupler chip, and then
>> feed the forward and reflected voltage taps to the internal cubesat
>> telemetry system and then compute the SWR from these two Forward and
>> Reflected power telemetry channels.
>>
>>
>>
>> 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
>> _______________________________________________
>> 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
>>
>
>
>
> --
> Bob McGwier
> Founder, Federated Wireless, Inc
> Founder and Technical Advisor, HawkEye 360, Inc
> Research Professor Virginia Tech
> Chief Scientist: The Ted and Karyn Hume Center for National Security and
> Technology
> Senior Member IEEE, Facebook: N4HYBob, ARS: N4HY
> Faculty Advisor Virginia Tech Amateur Radio Assn. (K4KDJ)
> Director of AMSAT
> Member of PVRC (Roanoke-Blacksburg), TAPR, life member of ARRL and AMSAT,
> NRVR.ORG (Rocketry)
> _______________________________________________
> 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
To thrive in life, you need three bones: a wish bone, a back bone, and a
funny bone.
- Reba McEntire
http://afeller.us <http://afeller.us/>
------------------------------
Message: 3
Date: Mon, 2 Oct 2017 17:35:37 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: "Arthur Feller, W4ART" <afeller@xxxx.xxx>, McGwier Robert
<rwmcgwier@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxxx Jin Kang <kang@xxxx.xxx>
Subject: Re: [amsat-bb] TUning the antennas on a Cubesat
Message-ID: <0023e843c60705a981031977f528d6fa@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset="UTF-8"
This might be possible, but then EMI testing should reveal any increase in
spurs in radiated emissions...
bob
-----Original Message-----
Bob, doesn?t this assume a perfectly resistive load presented by the
antenna? If the antenna presents a reactive load, it will be non-linear, so
a peak on the fundamental may well result in spurious emissions. No?
73, art?..
W4ART Arlington VA
> On 2-Oct-2017, at 04:27 PM, Robert McGwier <rwmcgwier@xxxxx.xxx> wrote:
>
> Yes
>
> On Thu, Sep 28, 2017 at 5:02 PM, Franklin Antonio
> <antonio@xxx.xxxxxxxx.xxx>
> wrote:
>
>> Can't you just tune for maximum signal level received, and bypass
>> measuring SWR?
>>
>> ________________________________________
>> From: AMSAT-BB <amsat-bb-bounces@xxxxx.xxx> on behalf of Robert
>> Bruninga < bruninga@xxxx.xxx>
>> Sent: Thursday, September 28, 2017 1:25 PM
>> To: amsat-bb@xxxxx.xxx
>> Cc: Jin Kang
>> Subject: [amsat-bb] TUning the antennas on a Cubesat
>>
>> Someone asked me how to tune the antennas on a cubesat without the
>> instrumentation totally becoming part of the antenna system itself?
>>
>>
>>
>> I said you have to put the SWR instrument inside the cubesat as we did
>> here: http://aprs.org/PSAT2/SWR-testing-0160x.jpg
>>
>>
>>
>> But that only works on a 1.5U cubesat where and MFJ Antenna Analyzer
>> will fit!
>>
>>
>>
>> The other method is to just put in a bidirectional coupler chip, and
>> then feed the forward and reflected voltage taps to the internal
>> cubesat telemetry system and then compute the SWR from these two
>> Forward and Reflected power telemetry channels.
>>
>>
>>
>> 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
>> _______________________________________________
>> 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
>>
>
>
>
> --
> Bob McGwier
> Founder, Federated Wireless, Inc
> Founder and Technical Advisor, HawkEye 360, Inc Research Professor
> Virginia Tech Chief Scientist: The Ted and Karyn Hume Center for
> National Security and Technology Senior Member IEEE, Facebook:
> N4HYBob, ARS: N4HY Faculty Advisor Virginia Tech Amateur Radio Assn.
> (K4KDJ) Director of AMSAT Member of PVRC (Roanoke-Blacksburg), TAPR,
> life member of ARRL and AMSAT, NRVR.ORG (Rocketry)
> _______________________________________________
> 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
To thrive in life, you need three bones: a wish bone, a back bone, and a
funny bone.
- Reba McEntire
http://afeller.us <http://afeller.us/>
_______________________________________________
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: 4
Date: Mon, 02 Oct 2017 17:53:45 -0400
From: John Papay <john@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] VUCC Awards/Endorsements for September 2017
Message-ID: <20171002215353.E51F387C6@xxxxxxxxxx.xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
The VUCC Standings for September 30th are still not
without problems. Totals that changed a few up or down
are still not corrected. A few more callsigns are missing.
Below are the totals that changed on 8 September 2017 which
were in the last posting. The 30 September pdf dropped N1AIA
and AK4WQ(EN34). AI6GS and K7TAB are still missing.
Previous Callsigns missing on 08Sep2017:
AI6GS (230)
K7TAB (100)
New Callsigns Missing on 30Sep2017:
N1AIA (216)
AK4WQ(EN34) (107) (was 106 01Aug2017)
Callsigns with totals that went DOWN:
KO4MA 1564 -> 1562
AC0RA 1143 -> 1142
K8TL 974 -> 973
AA5PK 876 -> 875
W6ZQ 561 -> 560
K4XP 102 -> 101
Callsigns with totals that only went UP by a few:
K6FW 603 -> 606
KK4FEM 476 -> 480 (now NJ4Y at 502)
KL7CN/W6 249 -> 250
KX9X 158 -> 159
AK4WQ(EN34) 106 -> 107
VA3NNA 100 -> 102
(The above callsigns could be legitimate endorsements.)
Here are the apparent endorsements and new VUCC Satellite
Awards issued by the ARRL for the period September 8, 2017
through September 30, 2017.
Congratulations to all those who made the list this month!
CALL GRIDS
KB1RVT 1524
K4FEG 818
NJ4Y 502
W4FS 482
W0DHB 400
K5ND 351
NS3L 225
W6ZQ(DM42) 202 (NEW VUCC)
NR0T 200
WA7HQD 138
PT2AP 102 (NEW VUCC)
PS8ET 101 (NEW VUCC)
K4RGK 100 (NEW VUCC)
This list was developed by comparing the ARRL .pdf
listings for September 8th and September 30th, 2017. It's a visual
comparison so omissions are possible. Apologies if your
call was not mentioned. Thanks to all those who are
roving to grids that are rarely on the birds. They are
doing most of the work!
73,
John K8YSE
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
------------------------------
Message: 5
Date: Mon, 2 Oct 2017 22:20:29 +0000 (UTC)
From: "R.T.Liddy" <k8bl@xxxxxxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] VUCC Awards/Endorsements for September 2017
Message-ID: <1672794807.49291.1506982829939@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
John... TNX for doing this service for the SAT Ops!! It whets our
appetites for working more Grids.
73, Bob K8BL
________________________________
From: John Papay <john@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Monday, October 2, 2017 5:55 PM
Subject: [amsat-bb] VUCC Awards/Endorsements for September 2017
The VUCC Standings for September 30th are still not
without problems. Totals that changed a few up or down
are still not corrected. A few more callsigns are missing.
Below are the totals that changed on 8 September 2017 which
were in the last posting. The 30 September pdf dropped N1AIA
and AK4WQ(EN34). AI6GS and K7TAB are still missing.
Previous Callsigns missing on 08Sep2017:
AI6GS (230)
K7TAB (100)
New Callsigns Missing on 30Sep2017:
N1AIA (216)
AK4WQ(EN34) (107) (was 106 01Aug2017)
Callsigns with totals that went DOWN:
KO4MA 1564 -> 1562
AC0RA 1143 -> 1142
K8TL 974 -> 973
AA5PK 876 -> 875
W6ZQ 561 -> 560
K4XP 102 -> 101
Callsigns with totals that only went UP by a few:
K6FW 603 -> 606
KK4FEM 476 -> 480 (now NJ4Y at 502)
KL7CN/W6 249 -> 250
KX9X 158 -> 159
AK4WQ(EN34) 106 -> 107
VA3NNA 100 -> 102
(The above callsigns could be legitimate endorsements.)
Here are the apparent endorsements and new VUCC Satellite
Awards issued by the ARRL for the period September 8, 2017
through September 30, 2017.
Congratulations to all those who made the list this month!
CALL GRIDS
KB1RVT 1524
K4FEG 818
NJ4Y 502
W4FS 482
W0DHB 400
K5ND 351
NS3L 225
W6ZQ(DM42) 202 (NEW VUCC)
NR0T 200
WA7HQD 138
PT2AP 102 (NEW VUCC)
PS8ET 101 (NEW VUCC)
K4RGK 100 (NEW VUCC)
This list was developed by comparing the ARRL .pdf
listings for September 8th and September 30th, 2017. It's a visual
comparison so omissions are possible. Apologies if your
call was not mentioned. Thanks to all those who are
roving to grids that are rarely on the birds. They are
doing most of the work!
73,
John K8YSE
------------------------------
Message: 6
Date: Mon, 2 Oct 2017 16:14:57 -0700
From: Greg D <ko6th.greg@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Falconsat-3 and APRS HT's?
Message-ID: <7c8b33bf-a5c9-8fd9-789b-99467ebab13a@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Ok, so I must be doing something wrong. I have an RTL-SDR dongle hooked
to a deep-fringe TV antenna in the attic which is my all-purpose scanner
setup. I can barely make out the 9600 baud downlink from FalconSat-3 in
the GQRX Waterfall, seeing a good bit of fading during the pass. At
best it's a faint bar; mostly not there at all. My D74 hand-held, with
a Diamond RH-77B whip antenna decodes nothing, assuming there was
something to decode. Tried this on 3 passes this afternoon. Nada.
APRS traffic on 145.39, by comparison, shows up really well.
I thought I read that the satellite had a nice strong downlink.
435.103, plus or minus. I've not done much of anything with 9600 baud
packet, so don't have much experience to draw from. What's wrong?
Equipment, operating, or expectations?
Greg KO6TH
Patrick STODDARD (WD9EWK/VA7EWK) wrote:
> Hi Bob!
>
> There are more than a few of us who have tried FalconSat-3 with
> the HTs capable of 9600bps APRS. The TH-D7 and TH-D72 are probably
> the best HTs for this, as they are capable of full-duplex operation.
> I have used my TH-D72 to make a few QSOs last weekend, and I have
> also used other combinations of radios to get on these passes...
>
> 1. TX: TH-D74, RX: another TH-D74
> 2. TX: TH-D74, RX: TH-D74 and SDRplay with HDSDR & UZ7HO's
> HS-SoundModem
> 3. TX: TH-D74, RX: SDRplay with HDSDR & HS-SoundModem
> 4. TX: TH-D74, RX: SDRplay w/HDSDR, HS-SoundModem, UISS
>
> With all of these radios and combinations of radios, I have been
> using my Elk Antennas handheld 2m/70cm log periodic, going through
> a 2m/70cm diplexer whenever I'm using more than just the TH-D72.
>
> For a few of these passes where I used the SDR receive setup, I
> have made RF recordings. Using the UZ7HO or UISS programs, I am
> also making logs from each program. For just the HT, pictures of
> the HT's screen showing the messages exchanged with other stations
> and other information like position packets. I have posted files
> in my Dropbox space at http://dropbox.wd9ewk.net/ (look for folders
> with "FalconSat3" in the folder names).
>
> I just tried the 4th setup listed above for the first time on the
> 1756 UTC pass this morning. As I've seen before, I am receiving
> more data with the SDR setup than with the HTs. I saw my own packets
> passing through the digipeater - my position/comment packet, as well
> as a couple of messages sent to ALL. I haven't tried using the
> software directly to a radio, but I have a SignaLink USB here, and
> may work on that. The SDRplay, along with HDSDR's AFC function,
> works very well on the downlink. I normally don't have to make any
> adjustments to the downlink frequency during passes, as long as I
> am reasonably accurate in pointing my antenna skyward. UISS makes it
> easier to keep track of call signs, rather than just looking at the
> HS-SoundModem window - especially when a burst of packets show up on
> the screen, and I might miss something as it scrolls off the window.
>
> I have two more really nice passes this afternoon - 1935 and 2115
> UTC. I am going to use the same setup on those two passes, and hope
> to see other stations using the digipeater like me. Maybe I will add
> to my short list of FalconSat-3 QSOs (currently at 3)...
>
> 73!
>
>
>
>
> Patrick WD9EWK/VA7EWK
> http://www.wd9ewk.net/
> Twitter: @xxxxxx or http://twitter.com/WD9EWK
>
>
>
> On Sun, Oct 1, 2017 at 3:20 PM, Robert Bruninga <bruninga@xxxx.xxx> wrote:
>
>> I was confused. I thought FALCONSAT-3 was a PACSAT protocol store and
>> forward system because I thought I saw people trying to get the old PB and
>> BG code, But the AMSAT web page says it is 9600 baud GMSK up and down.
>>
>> https://www.amsat.org/falconsat-3/
>>
>> 435.103 MHz down and 145.840 up DIGI call of PFS3-1. While of course
>> setting 5 memores to chase the Doppler the full 20 KHz during the pass.
>>
>> So I am surrprised that I havent heard of anyone making contacts with any
>> ole' APRS HT or Mobile... All of these radios can do 9600 baud and APRS
>> natively..
>>
>> Im under Kitchen arrest until 1st grandkid arrives soon and cannot play.
>> If I missed something, ignore me. Ill go back under my domestic rock...
>>
>> 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: Mon, 2 Oct 2017 19:52:28 -0400
From: <n4csitwo@xxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Special ARISS News Release no. 17-01
Message-ID: <7C90A89453AE4546B142127E389AC221@xxx>
Content-Type: text/plain; charset="iso-8859-1"
Special ARISS News Release
no. 17-01
Date: Oct. 2, 2017
For Immediate Release
ARISS One Step Closer to Flying New Equipment to ISS
On behalf of the ARISS International team, I am proud to announce that on
Friday September 29th the ARISS team submitted the InterOperable Radio
System (IORS) Safety Data Package to NASA for review! Our next step in this
process is the Safety Review, which is planned for November 2.
Submitting this was a phenomenal accomplishment!! Particularly since the
entire Safety Data Package was developed exclusively by our ARISS
volunteers---something we have never done before. Prior to this submittal,
all safety packages---from Owen Garriott's in the early 1980s to today--were
developed with contractors from NASA, ESA or Energia. And might I say at
substantial expense. I am pleased that the ARISS team did it ourselves!
Why is this important? Two reasons:
1) This is a very major IORS milestone. We cannot get to orbit without
successfully completing the safety review process and getting our hardware
certified for flight.
2) Developing the safety package exclusively with volunteers is an
innovative and gutsy approach to keep costs down and get the hardware flown
sooner. Otherwise we probably would have to slip launch 1-2 years while we
acquired additional funding to get this done.
NASA Human Spaceflight Safety Certification is a four-step process---Phase
0, Phase 1, Phase 2 and Phase 3. The material we submitted covers the first
three of the four phases. As part of Phases 0, 1 and 2, we need to make
sure NASA understands our design. And we need to show NASA that we
understand all the potential hazards that our hardware systems could
introduce to ISS and how we have mitigated (or prevented) these hazards.
One example is to demonstrate to NASA that our IORS was designed with
electrical wiring and circuit breakers that possess adequate features and
sufficient margin to prevent an electrical shock or fire on-board the ISS.
Critically important stuff! The final phase (Phase 3) will be complete when
we have completed all testing and NASA inspection of our flight hardware and
NASA deems it flight worthy. At that point the IORS will be flight
certificated and we can fly! Currently we are looking to March-May 2018 for
flight readiness.
For those not following ARISS hardware development very closely, we are
developing the IORS to replace most of the on-board radio hardware. It is
called "interoperable" because it is being designed to be operated anywhere
on ISS. But specifically, it will be used in the two areas with ISS Ham
legacy antennas: the Columbus Module and the Russian Service Module.
Interoperability allows us to leverage existing ISS power cables, it can be
moved between modules in the event of on-orbit failures, and it supports
common training and operations. The IORS is the most complex in-cabin
hardware system we have ever designed, built, tested and flown as a
volunteer team. We will remove the 3 watt Ericsson handheld radio system,
initially certified for flight in 1999, and the Packet module--both of which
have recently had issues-and install a brand-new, specially modified 25 watt
JVC Kenwood D710GA radio to enable a multitude of new or improved
capabilities on ISS, including voice repeater and be
tter APRS operations. A key development is the Multi-Voltage Power Supply
(MVPS), which interfaces with multiple electric outlet connection types on
ISS and provides a multitude of power output capabilities for our current
and future ARISS operations and amateur radio experimentation. It will also
allow our Ham Video system to have a dedicated power outlet, eliminating the
outlet sharing we have now, which shuts down Ham Video at times.
This effort would not be possible without the dedication and persistence of
our IORS development team of volunteers. They have been working tirelessly
behind the scenes to provide an outstanding amateur radio experience for
all. Our IORS development team includes: Lou McFadin, W5DID, our Chief
Engineer; Kerry Banke, N6IZW, the MVPS lead designer; Bob Davis, KF4KSS, the
MVPS Mechanical enclosure designer; Ed Krome, K9EK, supporting IORS thermal
control and cabin noise dissipation; Dave Taylor, W8AAS, our JVC Kenwood
D-710 development liaison; Bob Bruninga, WB4APR, our APRS and D-710
operations expert; Shin Aota, JL1IBD, and Phil Parton, N4DRO for all their
phenomenal support from JVC Kenwood; Kenneth Ransom, N5VHO, our operations
lead; and our safety package team-Ken Ernandes, N2WWD, and Gordon Scannell,
KD8COJ. Kudos to all on a fantastic effort!
Designing, building and testing the IORS is a huge undertaking and *very*
expensive. We need to build ten (10!) units to support flight hardware,
flight spares, testing, and training across the international team.
Hardware parts, development tools, fabrication, testing, and expenses to
certify the IORS are expected to cost approximately $150,000. And the hard
part (i.e. most expensive part) is just now starting. So please consider
making a donation to ARISS to take our hardware system from dream to
reality. You can donate to ARISS directly through the AMSAT web site at:
http://www.ariss.org/donate.html. ALL donations go directly to ARISS.
Thank you for all your support to inspire, engage and educate our youth to
consider wireless communications and amateur radio, and to pursue STEAM
careers through our exciting human space exploration and amateur radio
endeavor!
Ad Astra! To the Stars!
Sincerely,
Frank H. Bauer, KA3HDO
ARISS International Chair and ISS Ham Radio Principal Investigator
------------------------
About ARISS:
Amateur Radio on the International Space Station (ARISS) is a cooperative
venture of international amateur radio societies and the space agencies that
support the International Space Station (ISS). In the United States,
sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American
Radio Relay League (ARRL), the Center for the Advancement of Science in
Space (CASIS) and National Aeronautics and Space Administration (NASA).
The primary goal of ARISS is to promote exploration of science, technology,
engineering, and mathematics (STEM) topics by organizing scheduled contacts
via amateur radio between crew members aboard the ISS and students in
classrooms or informal education venues. With the help of experienced
amateur radio volunteers, ISS crews speak directly with large audiences in a
variety of public forums. Before and during these radio contacts, students,
teachers, parents, and communities learn about space, space technologies,
and amateur radio. For more informa
tion, see www.ariss.org, www.amsat.org, and www.arrl.org.
Thank you & 73,
David - AA4KN
---
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Message: 8
Date: Mon, 2 Oct 2017 21:01:47 -0400
From: Ken Alexander <k.alexander@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Roving Again This Weekend
Message-ID: <e9aef313-68bb-bf4d-e7cd-86b4e0a36739@xxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Well, the "VE3HLS All-Hit Request Line" has been overloaded lately, so
it's time to get out and do something a little bigger!
*The Plan*
...is to fill in some gaps in some of your grid maps.? Thus, I will be
leaving Friday morning for Quebec.? Night 1 will be spent in Joliette,
QC, where I hope to activate FN35/36 late Friday afternoon and early
Friday evening.
Saturday morning, I will head further east and hope to activate FN56/57
beginning around 1430 UTC.? I'll stay there for a few hours, then move
on to activate FN57/67 beginning around 2130 - 2200.? FN57/67 is my last
stop of the day, so I can afford to stay there a little longer.
Sunday and Monday are reserved for driving back home.? However, I'll be
making two brief stops to fulfill some requests, namely FN47 and FN45.?
I'll try my best to do at least one of these activations on the boundary
with FN46 to provide "added value"!
I'll likely spend Sunday night in FN24.? If anybody needs it then let me
know.? Otherwise I'll just crash in front of the TV!
Potentially 10 grids, if everything goes according to plan.
*The Weather**
*
As of earlier today the weather forecast for the entire destination area
sucks.? The forecast for Saint Leonard, NB currently says 30% chance of
showers on Saturday and worsening on Sunday.? I'll go anyway, provided
the forecast doesn't get any worse.? Standing out in pouring rain and
letting my gear get soaked is another matter; I won't do it.? I'd rather
it snowed. Rain may also slow my travel progress and make me late.
*Other Caveats*
Traffic could also be a problem.? It was miserable on Labour Day
weekend.? This weekend is Canadian Thanksgiving and the highways tend to
be busy and slow.
Put all this together and it makes it a little tougher to come up with a
precise schedule.? What I'm going to do is put together a schedule that
includes passes that happen up to an hour or so either side of my
planned arrival times.? It doesn't mean I'll make every pass, so watch
Twitter for updates.
And if all my plans go down the toilet then I'll do some landscape
photography, another passion of mine!
73,
Ken
VE3HLS
**
------------------------------
Message: 9
Date: Tue, 3 Oct 2017 12:15:29 +1000
From: Andrew Rich <vk4tec@xxxxxxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Falcon sat
Message-ID: <82A459DC-155C-42F2-8CC9-FC121E8CCDFB@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Anyone igating falconsat ?
Can you please provide me some sample packets.
Andrew
Sent from my iPhone
------------------------------
Message: 10
Date: Tue, 3 Oct 2017 10:30:25 +0800
From: Rick Kowalewski <rick@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Falcon sat
Message-ID: <ea94d1ba-ccfa-dfc8-6927-b117a23d4ce6@xxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Collect them yourself :)
On 3/10/2017 10:15, Andrew Rich wrote:
> Anyone igating falconsat ?
>
> Can you please provide me some sample packets.
>
> Andrew
------------------------------
Subject: Digest Footer
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Sent via amsat-bb@xxxxx.xxx.
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without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
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------------------------------
End of AMSAT-BB Digest, Vol 12, Issue 243
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