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CX2SA > SATDIG 30.06.16 12:21l 797 Lines 29364 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: US barriers to orbit (Re: Amateur communication
satellites) (Paul Stoetzer)
2. Re: Financial arguments about full duplex (Ronald G. Parsons)
3. Re: US barriers to orbit (Re: Amateur communication
satellites) (Dave Mann)
4. Re: US barriers to orbit (Re: Amateur communication
satellites) (Robert Bruninga)
5. Re: US barriers to orbit (Re: Amateur communication
satellites) (Paul Stoetzer)
6. AO-85 on AMSATDroid (skristof@xxxxxxx.xxxx
7. Re: AO-85 on AMSATDroid (Paul Stoetzer)
8. Re: AO-85 on AMSATDroid (Alan Biddle)
9. Re: AO-85 on AMSATDroid (skristof@xxxxxxx.xxxx
10. My first video from the July 2015 ISS SSTV event (and thank
you to Dog Park Software) (John Brier)
11. Re: US barriers to orbit (Re: Amateur communication
satellites) (David G0MRF)
----------------------------------------------------------------------
Message: 1
Date: Wed, 29 Jun 2016 17:01:26 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: Bryan KL7CN <bryan@xxxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] US barriers to orbit (Re: Amateur
communication satellites)
Message-ID:
<CABzOSOqKbFD+Fv9KBPHtkr64PH8izsA_M2P+JkzCHBsmBazgAA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
There have been several recently launched satellites that carry a
digital messaging system for amateur use - either a digipeater or
store and forward system. None have been fully documented to the
amateur satellite community or, as far as I can tell, been activated.
It's been an unfortunate trend that satellites are launched carrying
an amateur payload or with a system intended to be used by amateurs
after the primary mission has been completed and then we never hear
about it again. Mishaps and delays occur, but it's disappointing that
these groups don't see fit to keep the amateur community updated.
73,
Paul, N8HM
On Wed, Jun 29, 2016 at 4:50 PM, Bryan KL7CN <bryan@xxxxx.xxx> wrote:
> Mode K is awesome!
>
> But, it seems more "old style ham radio-y" than using VHF/UHF gear --
big-ish gear, big antennas. I was thinking about how someone with a
Raspberry Pi and a VHF/UHF module would use Mode K -- my HackerLab crowd.
>
> Like I said: Yay. More satellites.
>
> But I sure would like to see something more modern-feeling that would
appeal to the Maker/DIY/Rasperry Pi crowd.
>
> But, see #1. :)
>
> -- bag
>
> Bryan KL7CN/W6
> bryan@xxxxx.xxx
>
> On Jun 29, 2016, at 13:00, Paul Stoetzer <n8hm@xxxx.xxx> wrote:
>
> Mode K was pretty popular back with RS-12/13! The Doppler shift is
> minimal enough at those frequencies that any normal HF transceiver in
> split mode will work fine.
>
> The neat thing is the potential for subhorizon access to the satellite.
>
> 73,
>
> Paul, N8HM
>
> On Wed, Jun 29, 2016 at 3:33 PM, Bryan Green <bryan@xxxxx.xxx> wrote:
>> 1. Yay. More satellites.
>>
>> 2. HF? Really? Huh.
>>
>> 3. Net-net: see 1.
>>
>> -- bag
>>
>> Bryan KL7CN/W6
>> bryan@xxxxx.xxx
>>
>> On Jun 29, 2016, at 12:28, Robert Bruninga <bruninga@xxxx.xxx> wrote:
>>
>>>>> Within the US, when someone like Bob, WB4APR, tries to build amateur
>>>>> communication sats, he runs into needless obstacles from FCC and NTIA.
>>>
>>>> Expand, please.
>>>
>>> The FCC had held up our Advance Notice (API) filing on the Naval Academy's
>>> last 5 Amateur Satellites (2 in orbit!) in a disagreement over whether
>>> Amateur Satellites built by students at the Service Academies can be
>>> amateur or must operate under NTIA rules in Federal Bands.
>>>
>>> Since the 5 satellites all had 2-way ham-user transponders on them on 2m
>>> and 70cm, the NTIA disagreed and said it was an FCC part 97 operation.
>>> FCC said it had to be Federal (and back and forth). Note, we CANNOT get
>>> an "Experimental license" from the FCC, because it is true, that our
>>> institution is Federal. But when our students build an Amateur
>>> Satellite, it does not matter who built it, what matters is how it is
>>> OPERATED.
>>>
>>> Finally, I think the paperwork was accepted by the FCC for OPERATION in
>>> support of users in the Amateur Satellite Service and we have our fingers
>>> crossed that they will forward the API Notices to the ITU.
>>>
>>> To avoid any recurrence of this debate, our next student experimental
>>> satellite will be a bent-pipe HF linear transponder like the early AMSATS
>>> with uplink on 15m and downlink on 10m.
>>>
>>> We walk a fine line... In order for DOD to launch it, the experiment has
>>> to have some educational value to DOD. In order for us to be able to
>>> build something useful and economical at the undergraduate level, it needs
>>> to be amateur. So by proposing an HF transponder for our next project,
>>> we NAILED-IT!
>>>
>>> The Feds have NO SATELLITE allocations in HF, but the Amateur Satellite
>>> Service does. Therefore if they want to let us learn anything about HF
>>> satellites, then they have to let us operate it in the Amateur Satellite
>>> Service where there will be plenty of "users" to exercise it.
>>>
>>> So it will be a 100% amateur radio satellite for all hams worldwide and
>>> what we learn from it will have value to understaning HF satellites.
>>>
>>> Again, fingers crossed. This would be a 2018 satellite at the earliest.
>>>
>>> LESSON LEARNED: Don't let anyone but the Amateur Satellite Control
>>> operator get involved in the paper work. He files the paperwork and he
>>> takes the responsibility for ON/OFF command as required by the FCC.
>>>
>>> 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
>
------------------------------
Message: 2
Date: Wed, 29 Jun 2016 16:24:23 -0500
From: "Ronald G. Parsons" <w5rkn@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Financial arguments about full duplex
Message-ID: <2D5629CBC715453480F23066864996B9@xxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
After looking through Hector's slideshow below, I was left with great awe.
This slideshow should be seen by every high school radio club. High school
students can be very resourceful when a high goal is in front of them, even
though funds are tight, as they almost always are.
I think three of my favorite events in my ham radio "career" have been with
three ARISS satellite events -- a middle school with MIR, an elementary
school with ISS, and a high school when Richard Garriott W5KWQ, was on the
ISS.
Kodos to Hector and to all who helped him. Again, I am in awe.
Ron W5RKN
------------------------------
Message: 12
Date: Wed, 29 Jun 2016 20:58:23 +0000
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Financial arguments about full duplex
Message-ID:
<CAN6TEUckkTaw5ii04QUeEJ_1noDsaCdW+tEfzeOJmckGJD4jAg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hi!
When it comes to being creative in the face of little or no access
to equipment, one example to remember is how Hector - CO6CBF
at the time in 2012 and 2013, now also W5CBF - scrounged to get
equipment and parts together to work satellites. For Hector in
2012 living in Cuba, even a $30 Baofeng radio was out of reach -
nobody sells them in Cuba, and with a monthly income for most
Cubans around US$20 to US$25/month even that radio is a luxury.
If you'd like to see what Hector did to put together his station,
he gave a presentation at the 2012 AMSAT Symposium in Orlando.
The video of his presentation is at:
https://www.youtube.com/watch?v=eocmIubIBQ4
The slideshow that was displayed on the screen during Hector's
2012 talk is available at:
http://mstl.atl.calpoly.edu/~bklofas/Presentations/AMSAT
-NA_Symposium2012/Martinez_Cuban_Homebrew.pdf
This is ingenuity and creativity taken to a high level, out of
necessity.
Hector gave another presentation at the 2013 AMSAT Symposium
in Houston on a slightly different topic. You can see that video at:
?https://www.youtube.com/watch?v=CH5Gb_dmuGs
and the slideshow is at:
http://mstl.atl.calpoly.edu/~bklofas/Presentations/AMSAT
-NA_Symposium2013/Martinez_FUNcube_School_Support.pdf
I am sensitive to hams who say that costs are an issue when
trying to get on the satellites. I also remind myself, and other
hams, that there are ways to get on the air when someone wants
to make it happen.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
Twitter: @xxxxxx
------------------------------
Message: 3
Date: Wed, 29 Jun 2016 17:24:47 -0500
From: Dave Mann <cwo4mann@xxxxxxx.xxx>
To: Bryan KL7CN <bryan@xxxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>, Paul Stoetzer <n8hm@xxxx.xxx>
Subject: Re: [amsat-bb] US barriers to orbit (Re: Amateur
communication satellites)
Message-ID: <E075E490-E9FC-47B4-8182-841042D112BB@xxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Yes Mode K is very easy. I worked many RS QSO's in CW with no problems at
all. Used two Kenwood TS-830's and a multi-band Fritzel Co. Wire antenna.
Only problem for me was that I had to report ever QSO with a "Soviet Bloc"
country to the G2 office. After a few weeks I just gave the spooks a copy
of the logbook.
73
Dave
Ex-DA1BB
Sent from my iPad
> On Jun 29, 2016, at 15:50, Bryan KL7CN <bryan@xxxxx.xxx> wrote:
>
> Mode K is awesome!
>
> But, it seems more "old style ham radio-y" than using VHF/UHF gear --
big-ish gear, big antennas. I was thinking about how someone with a
Raspberry Pi and a VHF/UHF module would use Mode K -- my HackerLab crowd.
>
> Like I said: Yay. More satellites.
>
> But I sure would like to see something more modern-feeling that would
appeal to the Maker/DIY/Rasperry Pi crowd.
>
> But, see #1. :)
>
> -- bag
>
> Bryan KL7CN/W6
> bryan@xxxxx.xxx
>
> On Jun 29, 2016, at 13:00, Paul Stoetzer <n8hm@xxxx.xxx> wrote:
>
> Mode K was pretty popular back with RS-12/13! The Doppler shift is
> minimal enough at those frequencies that any normal HF transceiver in
> split mode will work fine.
>
> The neat thing is the potential for subhorizon access to the satellite.
>
> 73,
>
> Paul, N8HM
>
>> On Wed, Jun 29, 2016 at 3:33 PM, Bryan Green <bryan@xxxxx.xxx> wrote:
>> 1. Yay. More satellites.
>>
>> 2. HF? Really? Huh.
>>
>> 3. Net-net: see 1.
>>
>> -- bag
>>
>> Bryan KL7CN/W6
>> bryan@xxxxx.xxx
>>
>> On Jun 29, 2016, at 12:28, Robert Bruninga <bruninga@xxxx.xxx> wrote:
>>
>>>>> Within the US, when someone like Bob, WB4APR, tries to build amateur
>>>>> communication sats, he runs into needless obstacles from FCC and NTIA.
>>>
>>>> Expand, please.
>>>
>>> The FCC had held up our Advance Notice (API) filing on the Naval Academy's
>>> last 5 Amateur Satellites (2 in orbit!) in a disagreement over whether
>>> Amateur Satellites built by students at the Service Academies can be
>>> amateur or must operate under NTIA rules in Federal Bands.
>>>
>>> Since the 5 satellites all had 2-way ham-user transponders on them on 2m
>>> and 70cm, the NTIA disagreed and said it was an FCC part 97 operation.
>>> FCC said it had to be Federal (and back and forth). Note, we CANNOT get
>>> an "Experimental license" from the FCC, because it is true, that our
>>> institution is Federal. But when our students build an Amateur
>>> Satellite, it does not matter who built it, what matters is how it is
>>> OPERATED.
>>>
>>> Finally, I think the paperwork was accepted by the FCC for OPERATION in
>>> support of users in the Amateur Satellite Service and we have our fingers
>>> crossed that they will forward the API Notices to the ITU.
>>>
>>> To avoid any recurrence of this debate, our next student experimental
>>> satellite will be a bent-pipe HF linear transponder like the early AMSATS
>>> with uplink on 15m and downlink on 10m.
>>>
>>> We walk a fine line... In order for DOD to launch it, the experiment has
>>> to have some educational value to DOD. In order for us to be able to
>>> build something useful and economical at the undergraduate level, it needs
>>> to be amateur. So by proposing an HF transponder for our next project,
>>> we NAILED-IT!
>>>
>>> The Feds have NO SATELLITE allocations in HF, but the Amateur Satellite
>>> Service does. Therefore if they want to let us learn anything about HF
>>> satellites, then they have to let us operate it in the Amateur Satellite
>>> Service where there will be plenty of "users" to exercise it.
>>>
>>> So it will be a 100% amateur radio satellite for all hams worldwide and
>>> what we learn from it will have value to understaning HF satellites.
>>>
>>> Again, fingers crossed. This would be a 2018 satellite at the earliest.
>>>
>>> LESSON LEARNED: Don't let anyone but the Amateur Satellite Control
>>> operator get involved in the paper work. He files the paperwork and he
>>> takes the responsibility for ON/OFF command as required by the FCC.
>>>
>>> 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
>
> _______________________________________________
> 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: Wed, 29 Jun 2016 18:26:17 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] US barriers to orbit (Re: Amateur
communication satellites)
Message-ID: <1d98b27e7a967c4a2a426b2aca57338a@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
> How big and or heavy will this 15/10 bird be?
A small cubesat. To support a linear transponder takes a lot of power. We
might have to leave it off at night. Not sure until we do the analysis.
Bob
-----Original Message-----
From: Robert Bruninga [mailto:bruninga@xxxx.xxxx
Sent: Wednesday, June 29, 2016 3:28 PM
To: AMSAT-BB
Cc: bruninga@xxxx.xxx
Subject: RE: [amsat-bb] US barriers to orbit (Re: Amateur communication
satellites)
>> Within the US, when someone like Bob, WB4APR, tries to build amateur
>> communication sats, he runs into needless obstacles from FCC and NTIA.
> Expand, please.
The FCC had held up our Advance Notice (API) filing on the Naval Academy's
last 5 Amateur Satellites (2 in orbit!) in a disagreement over whether
Amateur Satellites built by students at the Service Academies can be amateur
or must operate under NTIA rules in Federal Bands.
Since the 5 satellites all had 2-way ham-user transponders on them on 2m and
70cm, the NTIA disagreed and said it was an FCC part 97 operation.
FCC said it had to be Federal (and back and forth). Note, we CANNOT get an
"Experimental license" from the FCC, because it is true, that our
institution is Federal. But when our students build an Amateur Satellite,
it does not matter who built it, what matters is how it is OPERATED.
Finally, I think the paperwork was accepted by the FCC for OPERATION in
support of users in the Amateur Satellite Service and we have our fingers
crossed that they will forward the API Notices to the ITU.
To avoid any recurrence of this debate, our next student experimental
satellite will be a bent-pipe HF linear transponder like the early AMSATS
with uplink on 15m and downlink on 10m.
We walk a fine line... In order for DOD to launch it, the experiment has to
have some educational value to DOD. In order for us to be able to build
something useful and economical at the undergraduate level, it needs
to be amateur. So by proposing an HF transponder for our next project,
we NAILED-IT!
The Feds have NO SATELLITE allocations in HF, but the Amateur Satellite
Service does. Therefore if they want to let us learn anything about HF
satellites, then they have to let us operate it in the Amateur Satellite
Service where there will be plenty of "users" to exercise it.
So it will be a 100% amateur radio satellite for all hams worldwide and what
we learn from it will have value to understaning HF satellites.
Again, fingers crossed. This would be a 2018 satellite at the earliest.
LESSON LEARNED: Don't let anyone but the Amateur Satellite Control operator
get involved in the paper work. He files the paperwork and he takes the
responsibility for ON/OFF command as required by the FCC.
Bob, WB4APR
------------------------------
Message: 5
Date: Wed, 29 Jun 2016 18:32:06 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: Robert Bruninga <bruninga@xxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] US barriers to orbit (Re: Amateur
communication satellites)
Message-ID:
<CABzOSOq27369WGC7H1Q2+k-SpEVrYpzq94-zQA8YsWYJ4inaNg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
AO-73 is a 1U cubesat and power positive with a 20 kHz wide linear
transponder at about 300 mW PEP. With a 10m downlink, you have less
path loss to contend with than on 2m (but more loss through the
ionosphere), but I'd think it would be doable if the passband is kept
relatively narrow and the power output low.
73,
Paul, N8HM
On Wed, Jun 29, 2016 at 6:26 PM, Robert Bruninga <bruninga@xxxx.xxx> wrote:
>> How big and or heavy will this 15/10 bird be?
>
> A small cubesat. To support a linear transponder takes a lot of power. We
> might have to leave it off at night. Not sure until we do the analysis.
> Bob
>
> -----Original Message-----
> From: Robert Bruninga [mailto:bruninga@xxxx.xxxx
> Sent: Wednesday, June 29, 2016 3:28 PM
> To: AMSAT-BB
> Cc: bruninga@xxxx.xxx
> Subject: RE: [amsat-bb] US barriers to orbit (Re: Amateur communication
> satellites)
>
>>> Within the US, when someone like Bob, WB4APR, tries to build amateur
>>> communication sats, he runs into needless obstacles from FCC and NTIA.
>
>> Expand, please.
>
> The FCC had held up our Advance Notice (API) filing on the Naval Academy's
> last 5 Amateur Satellites (2 in orbit!) in a disagreement over whether
> Amateur Satellites built by students at the Service Academies can be amateur
> or must operate under NTIA rules in Federal Bands.
>
> Since the 5 satellites all had 2-way ham-user transponders on them on 2m and
> 70cm, the NTIA disagreed and said it was an FCC part 97 operation.
> FCC said it had to be Federal (and back and forth). Note, we CANNOT get an
> "Experimental license" from the FCC, because it is true, that our
> institution is Federal. But when our students build an Amateur Satellite,
> it does not matter who built it, what matters is how it is OPERATED.
>
> Finally, I think the paperwork was accepted by the FCC for OPERATION in
> support of users in the Amateur Satellite Service and we have our fingers
> crossed that they will forward the API Notices to the ITU.
>
> To avoid any recurrence of this debate, our next student experimental
> satellite will be a bent-pipe HF linear transponder like the early AMSATS
> with uplink on 15m and downlink on 10m.
>
> We walk a fine line... In order for DOD to launch it, the experiment has to
> have some educational value to DOD. In order for us to be able to build
> something useful and economical at the undergraduate level, it needs
> to be amateur. So by proposing an HF transponder for our next project,
> we NAILED-IT!
>
> The Feds have NO SATELLITE allocations in HF, but the Amateur Satellite
> Service does. Therefore if they want to let us learn anything about HF
> satellites, then they have to let us operate it in the Amateur Satellite
> Service where there will be plenty of "users" to exercise it.
>
> So it will be a 100% amateur radio satellite for all hams worldwide and what
> we learn from it will have value to understaning HF satellites.
>
> Again, fingers crossed. This would be a 2018 satellite at the earliest.
>
> LESSON LEARNED: Don't let anyone but the Amateur Satellite Control operator
> get involved in the paper work. He files the paperwork and he takes the
> responsibility for ON/OFF command as required by the FCC.
>
> Bob, WB4APR
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Wed, 29 Jun 2016 20:21:32 -0400
From: skristof@xxxxxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] AO-85 on AMSATDroid
Message-ID: <e3c0ebf707a1672348792c57ac8ed6fd@xxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII
I put the AMSATDroid free app on my Samsung smartphone (I'm new at this
high tech stuff), but I can't find AO-85 listed on the app. Does AO-85
have an alternate designation or is it just not covered by AMSATDroid?
Steve AI9IN
------------------------------
Message: 7
Date: Wed, 29 Jun 2016 20:46:25 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: "skristof@xxxxxxx.xxxx <skristof@xxxxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-85 on AMSATDroid
Message-ID:
<CABzOSOomD0K3ztP_qqXziWx47ivncctyQBUqYANEnCgyoi76qg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Select the AMSAT source rather than CelesTrak. Due to AO-85's launch as a
secondary payload on a classified mission, CelesTrak doesn't have the keps
in their database.
73,
Paul, N8HM
On Wednesday, June 29, 2016, <skristof@xxxxxxx.xxx> wrote:
> I put the AMSATDroid free app on my Samsung smartphone (I'm new at this
> high tech stuff), but I can't find AO-85 listed on the app. Does AO-85
> have an alternate designation or is it just not covered by AMSATDroid?
>
> Steve AI9IN
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx <javascript:;>. 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: 8
Date: Wed, 29 Jun 2016 19:49:49 -0500
From: Alan Biddle <wa4sca@xxxxx.xxx>
To: "skristof@xxxxxxx.xxxx <skristof@xxxxxxx.xxx>,
"amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] AO-85 on AMSATDroid
Message-ID: <57746caf.46f00d0a.5fae.fffff110@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="utf-8"
Use the AMSAT.ORG Keps.
73s,
Alan
WA4SCA
From: skristof@xxxxxxx.xxx
Sent: Wednesday, June 29, 2016 7:21 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] AO-85 on AMSATDroid
I put the AMSATDroid free app on my Samsung smartphone (I'm new at this
high tech stuff), but I can't find AO-85 listed on the app. Does AO-85
have an alternate designation or is it just not covered by AMSATDroid?
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: 9
Date: Wed, 29 Jun 2016 20:57:29 -0400
From: skristof@xxxxxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] AO-85 on AMSATDroid
Message-ID: <267d094a0361f3a9dc06da67dfcaa7f5@xxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII
A big THANK YOU! for all the quick replies. "Update Keps" --> "Amateur"
took care of it.
Steve AI9IN
On 2016-06-29 20:34, Dave Webb KB1PVH wrote:
> Hit MENU then select Update Keps and choose Amateur (amsat.org [1])
>
> Dave-KB1PVH
Links:
------
[1] http://amsat.org
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Message: 10
Date: Thu, 30 Jun 2016 00:37:35 -0400
From: John Brier <johnbrier@xxxxx.xxx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] My first video from the July 2015 ISS SSTV event
(and thank you to Dog Park Software)
Message-ID:
<CALn0fKPwdyOjj3KFJou0Fk8rqr7j1JH02nJQVTYJj_VZOngvXQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
https://www.youtube.com/watch?v=5PJJixog12A
"One ISS SSTV Image @ 1 A.M. @ 1 Degree"
This is the first video uploaded where I used the full version of
MacDoppler for satellite tracking screen captures. Before that I was
using the trial version, and before that I was using Orbitron on
Windows. I found that MacDoppler has a better looking map than
Orbitron.
Thank you to Don Agro, VE3VRW of Dog Park Software for providing the
full license for me to use in Space Comms videos.
https://www.dogparksoftware.com
https://www.dogparksoftware.com/MacDoppler.htm
If you liked this video please subscribe to me on YouTube:
https://www.youtube.com/c/SpaceComms1?sub_confirmation=1
Filmed on July 19th, 2015 in Raleigh, North Carolina.
73,
John Brier KG4AKV
------------------------------
Message: 11
Date: Thu, 30 Jun 2016 06:07:13 -0400
From: David G0MRF <g0mrf@xxx.xxx>
To: amsat-bb@xxxxx.xxxx bruninga@xxxx.xxxx n8hm@xxxx.xxx
Subject: Re: [amsat-bb] US barriers to orbit (Re: Amateur
communication satellites)
Message-ID: <155a0c6d551-595b-3d50@xxxxxxxxxx.xxxx.xxx.xxx>
Content-Type: text/plain; charset=utf-8
Hi Paul / Bob
We are fortunate with AO-73, If I recall correctly, it is power positive in
all modes except "Loopback" where it does drain the battery if left on 24/7
Elipse detection was our key to success. However, we have come to realise
that an adjustable timer that allows a satellite to charge for X minutes
after entering sunlight
provides much more control over long term management of the power budget and
battery life. - Another lesson learned.
Thanks
David G0MRF
AO-73 is a 1U cubesat and power positive with a 20 kHz wide linear
transponder at about 300 mW PEP. With a 10m downlink, you have less
path loss to contend with than on 2m (but more loss through the
ionosphere), but I'd think it would be doable if the passband is kept
relatively narrow and the power output low.
73,
Paul, N8HM
On Wed, Jun 29, 2016 at 6:26 PM, Robert Bruninga <bruninga at usna.edu> wrote:
>> How big and or heavy will this 15/10 bird be?
>
> A small cubesat. To support a linear transponder takes a lot of power. We
> might have to leave it off at night. Not sure until we do the analysis.
> Bob
>
> -----Original Message-----
> From: Robert Bruninga [mailto:bruninga at usna.edu]
> Sent: Wednesday, June 29, 2016 3:28 PM
> To: AMSAT-BB
> Cc: bruninga at usna.edu
> Subject: RE: [amsat-bb] US barriers to orbit (Re: Amateur communication
> satellites)
>
>>> Within the US, when someone like Bob, WB4APR, tries to build amateur
>>> communication sats, he runs into needless obstacles from FCC and NTIA.
------------------------------
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------------------------------
End of AMSAT-BB Digest, Vol 11, Issue 215
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