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CX2SA  > SATDIG   04.07.19 07:43l 734 Lines 25798 Bytes #999 (0) @ WW
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Subj: AMSAT-BB-digest V14 258
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Sent: 190704/0540Z @:CX2SA.SAL.URY.SOAM #:9444 [Salto] FBB7.00e $:AMSATBB14258
From: CX2SA@CX2SA.SAL.URY.SOAM
To  : SATDIG@WW

Today's Topics:

   1. Re: Type of modulation used by Kenwood Th-d7 (Roy Dean)
   2. Re: PSAT2 Status and Voice Ops (and reset) (Roy Dean)
   3. Re: PSAT2 Status and Voice Ops (and reset) (Scott)
   4. Re: PSAT2 Status and Voice Ops (and reset) (Robert Bruninga)
   5. Turned the corner on AISAT-1 APRS digipeats (Scott)
   6. Re: Turned the corner on AISAT-1 APRS digipeats (Robert MacHale)
   7. Re: Turned the corner on AISAT-1 APRS digipeats (Robert MacHale)
   8. Re: Turned the corner on AISAT-1 APRS digipeats (KI7UNJ Tucker)
   9. Re: Turned the corner on AISAT-1 APRS digipeats (Robert MacHale)
  10. Re: Turned the corner on AISAT-1 APRS digipeats (Scott)
  11. PSAT2 Status and Voice Ops (and reset) (Nicholas Mahr KE8AKW)


----------------------------------------------------------------------

Message: 1
Date: Wed, 3 Jul 2019 22:25:16 -0400
From: Roy Dean <royldean@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Type of modulation used by Kenwood Th-d7
Message-ID:
<CADGPg2sg2x9vW4Z1Xne1d5WGiUZETyCAC5fc9z0CG+040rSkeA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"

FM?

APRS is AX.25 1200AFSK

Is that what you are looking for?

--Roy
K3RLD



> Hi everybody
> Can anyone tell me what kind of RF modulation used by Kenwood Th-d7.
> Regards


------------------------------

Message: 2
Date: Wed, 3 Jul 2019 22:50:09 -0400
From: Roy Dean <royldean@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] PSAT2 Status and Voice Ops (and reset)
Message-ID:
<CADGPg2sKxM03NWqMmrEr+12MtskA_PLiojzi=HS=pvc=s1uf3g@????.?????.???>
Content-Type: text/plain; charset="UTF-8"

https://clyp.it/fesdanzt

I can make out "K4KDR" in the first message, but not the message itself.
 Scott, what did you have it say?   I tried to make it say "Shall we play a
game", no dice.   Hopefully somebody can do that in the future.  :)

--Roy


> Your updates are very helpful as we learn about the capabilities of this
> new satellite - thanks Bob! Regarding the text-to-voice, are you saying
> that we should not transmit
> messages in that format to the normal 'ARISS' path? If not, then what path
> should be used for text-to-voice messages? Thanks! -Scott, K4KDR


------------------------------

Message: 3
Date: Wed, 3 Jul 2019 23:08:09 -0400
From: Scott <scott23192@?????.???>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] PSAT2 Status and Voice Ops (and reset)
Message-ID:
<CAJCSnOb6UFOFD1LAGvystES6RJTH6un674jYtBY+y39iiqYefg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"

I just replied to the thread on QRZ.com with some additional info from
tonight's passes.

That first digi-talker activation was "7 3 7 3".  I posted a couple of
tweets for anyone who might be interested in some screen shots & settings
that worked for me.  On the 0147 UTC pass I even managed to get a regular
APRS position packet digipeated.

Here are those tweets w/ screen shots and links to the digi-talker audio:

https://twitter.com/scott23192/status/1146575878073257985

-and-

https://twitter.com/scott23192/status/1146601381463281664

73!

-Scott,  K4KDR

====================

On Wed, Jul 3, 2019 at 10:51 PM Roy Dean via AMSAT-BB <amsat-bb@?????.???>
wrote:

> https://clyp.it/fesdanzt
>
> I can make out "K4KDR" in the first message, but not the message itself.
>  Scott, what did you have it say?   I tried to make it say "Shall we play a
> game", no dice.   Hopefully somebody can do that in the future.  :)
>
> --Roy
>
>
> > Your updates are very helpful as we learn about the capabilities of this
> > new satellite - thanks Bob! Regarding the text-to-voice, are you saying
> > that we should not transmit
> > messages in that format to the normal 'ARISS' path? If not, then what
> path
> > should be used for text-to-voice messages? Thanks! -Scott, K4KDR
>


------------------------------

Message: 4
Date: Wed, 3 Jul 2019 23:15:01 -0400
From: Robert Bruninga <bruninga@????.???>
To: Scott <scott23192@?????.???>
Cc: amsat bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] PSAT2 Status and Voice Ops (and reset)
Message-ID:
<CALdCfNJN-40FmWJOFxLGjftVmn3LOL_RoXyC3sY5wkamJqE_TA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"

Well, so much for how it pronounces "now".  Fell free to try other
spellings to get the sound right.  Try "nahow", etc...
That's why I had to spell APRS as Aee P RS...

Bob

On Wed, Jul 3, 2019 at 11:08 PM Scott via AMSAT-BB <amsat-bb@?????.???>
wrote:

> I just replied to the thread on QRZ.com with some additional info from
> tonight's passes.
>
> That first digi-talker activation was "7 3 7 3".  I posted a couple of
> tweets for anyone who might be interested in some screen shots & settings
> that worked for me.  On the 0147 UTC pass I even managed to get a regular
> APRS position packet digipeated.
>
> Here are those tweets w/ screen shots and links to the digi-talker audio:
>
> https://twitter.com/scott23192/status/1146575878073257985
>
> -and-
>
> https://twitter.com/scott23192/status/1146601381463281664
>
> 73!
>
> -Scott,  K4KDR
>
> ====================
>
> On Wed, Jul 3, 2019 at 10:51 PM Roy Dean via AMSAT-BB <amsat-bb@?????.???>
> wrote:
>
> > https://clyp.it/fesdanzt
> >
> > I can make out "K4KDR" in the first message, but not the message itself.
> >  Scott, what did you have it say?   I tried to make it say "Shall we
> play a
> > game", no dice.   Hopefully somebody can do that in the future.  :)
> >
> > --Roy
> >
> >
> > > Your updates are very helpful as we learn about the capabilities of
> this
> > > new satellite - thanks Bob! Regarding the text-to-voice, are you saying
> > > that we should not transmit
> > > messages in that format to the normal 'ARISS' path? If not, then what
> > path
> > > should be used for text-to-voice messages? Thanks! -Scott, K4KDR
> >
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>


------------------------------

Message: 5
Date: Wed, 3 Jul 2019 23:25:50 -0400
From: Scott <scott23192@?????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] Turned the corner on AISAT-1 APRS digipeats
Message-ID:
<CAJCSnOa1mwubCEamhFZXw3C9eXK-aj01DtzQy6V1keLN2kwoYQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"

Greetings!

Being smart would be cool, but sometimes it's just easier to be lucky.

Since the launch of AISAT-1, I have really struggled to get digipeated thru
that satellite.  At best, I could get in a single digipeat but only at the
exact moment of closest approach on a high pass.   Armed with seeing that
repeatedly, I thought doppler tracking the 145.825 FM uplink might help,
but it did not.

So tonight (4-July UTC), by pure coincidence, there was a high pass of
AISAT-1 immediately following a pass of PSAT-2.  Following Bob's (WB4APR)
recommendation to use NARROW-FM on PSAT-2 (worked well), I thought "what
the heck", I'll leave my radio set on NARROW-FM for the pass of AISAT-1 as
well.  I'll even doppler track the AISAT-1 uplink while I'm at it.

Boom.  Got digipeated left and right.  Well before and after closest
approach, I got digipeated.  I didn't go crazy since I'm always so afraid
of blocking out other people on a simplex satellite, but I hit it enough to
see the night & day difference from what I'd been experiencing since
deployment.

If it's in the docs somewhere I missed it, but is sure seems to me that,
like PSAT-2, AISAT-1 might very well be equipped with a NARROW-FM radio.

It would be great to see if others find as much improvement as I did, so I
hope some folks will try AISAT-1 using NARROW-FM on the 145.825 APRS
digipeater.

73,

-Scott,  K4KDR


------------------------------

Message: 6
Date: Thu, 4 Jul 2019 03:38:22 +0000 (UTC)
From: Robert MacHale <robert.machale@?????.???>
To: amsat-bb@?????.???? Scott <scott23192@?????.???>
Subject: Re: [amsat-bb] Turned the corner on AISAT-1 APRS digipeats
Message-ID: <1287004293.2771978.1562211502168@????.?????.???>
Content-Type: text/plain; charset=UTF-8

Thanks for sharing! Is the new APRS radio on the ISS also NARROW-FM? I have
heard people mention something similar.
73
Robert MacHale. KE6BLR Ham Radio License.?http://spaceCommunicator.club/igates
. Supporting Boy Scout Merit Badges in Radio, Robotics, and Space Exploration


    On Wednesday, July 3, 2019, 8:27:20 PM PDT, Scott via AMSAT-BB
<amsat-bb@?????.???> wrote:

 Greetings!

Being smart would be cool, but sometimes it's just easier to be lucky.

Since the launch of AISAT-1, I have really struggled to get digipeated thru
that satellite.? At best, I could get in a single digipeat but only at the
exact moment of closest approach on a high pass.? Armed with seeing that
repeatedly, I thought doppler tracking the 145.825 FM uplink might help,
but it did not.

So tonight (4-July UTC), by pure coincidence, there was a high pass of
AISAT-1 immediately following a pass of PSAT-2.? Following Bob's (WB4APR)
recommendation to use NARROW-FM on PSAT-2 (worked well), I thought "what
the heck", I'll leave my radio set on NARROW-FM for the pass of AISAT-1 as
well.? I'll even doppler track the AISAT-1 uplink while I'm at it.

Boom.? Got digipeated left and right.? Well before and after closest
approach, I got digipeated.? I didn't go crazy since I'm always so afraid
of blocking out other people on a simplex satellite, but I hit it enough to
see the night & day difference from what I'd been experiencing since
deployment.

If it's in the docs somewhere I missed it, but is sure seems to me that,
like PSAT-2, AISAT-1 might very well be equipped with a NARROW-FM radio.

It would be great to see if others find as much improvement as I did, so I
hope some folks will try AISAT-1 using NARROW-FM on the 145.825 APRS
digipeater.

73,

-Scott,? K4KDR
_______________________________________________
Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb


------------------------------

Message: 7
Date: Thu, 4 Jul 2019 03:50:05 +0000 (UTC)
From: Robert MacHale <robert.machale@?????.???>
To: amsat-bb@?????.???? Scott <scott23192@?????.???>
Subject: Re: [amsat-bb] Turned the corner on AISAT-1 APRS digipeats
Message-ID: <1275531622.2792431.1562212205417@????.?????.???>
Content-Type: text/plain; charset=UTF-8

Random Though -- when two satellites are in range, can you bounce your APRS
packet from Sat1 to Sat2 then finally to an iGate?
KE6BLR>APRS,AISAT-1,ARISS:HELLO WORLD!
Could this produce:
KE6BLR>APRS,AISAT-1*,ARISS:HELLO WORLD!
Then:
KE6BLR>APRS,AISAT-1*,ARISS*:HELLO WORLD!
Next:
KE6BLR>APRS,AISAT-1*,ARISS*,qAR,N6DAN-1:HELLO WORLD!
73
Robert MacHale. KE6BLR Ham Radio License.?http://spaceCommunicator.club/igates
. Supporting Boy Scout Merit Badges in Radio, Robotics, and Space Exploration


    On Wednesday, July 3, 2019, 8:27:20 PM PDT, Scott via AMSAT-BB
<amsat-bb@?????.???> wrote:

 Greetings!

Being smart would be cool, but sometimes it's just easier to be lucky.

Since the launch of AISAT-1, I have really struggled to get digipeated thru
that satellite.? At best, I could get in a single digipeat but only at the
exact moment of closest approach on a high pass.? Armed with seeing that
repeatedly, I thought doppler tracking the 145.825 FM uplink might help,
but it did not.

So tonight (4-July UTC), by pure coincidence, there was a high pass of
AISAT-1 immediately following a pass of PSAT-2.? Following Bob's (WB4APR)
recommendation to use NARROW-FM on PSAT-2 (worked well), I thought "what
the heck", I'll leave my radio set on NARROW-FM for the pass of AISAT-1 as
well.? I'll even doppler track the AISAT-1 uplink while I'm at it.

Boom.? Got digipeated left and right.? Well before and after closest
approach, I got digipeated.? I didn't go crazy since I'm always so afraid
of blocking out other people on a simplex satellite, but I hit it enough to
see the night & day difference from what I'd been experiencing since
deployment.

If it's in the docs somewhere I missed it, but is sure seems to me that,
like PSAT-2, AISAT-1 might very well be equipped with a NARROW-FM radio.

It would be great to see if others find as much improvement as I did, so I
hope some folks will try AISAT-1 using NARROW-FM on the 145.825 APRS
digipeater.

73,

-Scott,? K4KDR
_______________________________________________
Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb


------------------------------

Message: 8
Date: Wed, 3 Jul 2019 20:57:07 -0700
From: KI7UNJ Tucker <ki7unj@?????.???>
To: Robert MacHale <robert.machale@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Turned the corner on AISAT-1 APRS digipeats
Message-ID:
<CAPFr_Uk0uvmvk-hyYJSQuSu5RQr2mSv=Aga8S-ghSy_dcbD5gQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"

Yes, it can be done...

http://aprs.org/pcsat.html search for the word "double" on that page and
you will see some references to it being done

On Wed, Jul 3, 2019 at 8:51 PM Robert MacHale via AMSAT-BB <
amsat-bb@?????.???> wrote:

> Random Though -- when two satellites are in range, can you bounce your
> APRS packet from Sat1 to Sat2 then finally to an iGate?
> KE6BLR>APRS,AISAT-1,ARISS:HELLO WORLD!
> Could this produce:
> KE6BLR>APRS,AISAT-1*,ARISS:HELLO WORLD!
> Then:
> KE6BLR>APRS,AISAT-1*,ARISS*:HELLO WORLD!
> Next:
> KE6BLR>APRS,AISAT-1*,ARISS*,qAR,N6DAN-1:HELLO WORLD!
> 73
> Robert MacHale. KE6BLR Ham Radio License.
> http://spaceCommunicator.club/igates
> . Supporting Boy Scout Merit Badges in Radio, Robotics, and Space
> Exploration
>
>
>     On Wednesday, July 3, 2019, 8:27:20 PM PDT, Scott via AMSAT-BB <
> amsat-bb@?????.???> wrote:
>
>  Greetings!
>
> Being smart would be cool, but sometimes it's just easier to be lucky.
>
> Since the launch of AISAT-1, I have really struggled to get digipeated thru
> that satellite.  At best, I could get in a single digipeat but only at the
> exact moment of closest approach on a high pass.  Armed with seeing that
> repeatedly, I thought doppler tracking the 145.825 FM uplink might help,
> but it did not.
>
> So tonight (4-July UTC), by pure coincidence, there was a high pass of
> AISAT-1 immediately following a pass of PSAT-2.  Following Bob's (WB4APR)
> recommendation to use NARROW-FM on PSAT-2 (worked well), I thought "what
> the heck", I'll leave my radio set on NARROW-FM for the pass of AISAT-1 as
> well.  I'll even doppler track the AISAT-1 uplink while I'm at it.
>
> Boom.  Got digipeated left and right.  Well before and after closest
> approach, I got digipeated.  I didn't go crazy since I'm always so afraid
> of blocking out other people on a simplex satellite, but I hit it enough to
> see the night & day difference from what I'd been experiencing since
> deployment.
>
> If it's in the docs somewhere I missed it, but is sure seems to me that,
> like PSAT-2, AISAT-1 might very well be equipped with a NARROW-FM radio.
>
> It would be great to see if others find as much improvement as I did, so I
> hope some folks will try AISAT-1 using NARROW-FM on the 145.825 APRS
> digipeater.
>
> 73,
>
> -Scott,  K4KDR
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb
>


--


Casey Tucker  KI7UNJ
https://twitter.com/KI7UNJ
https://www.qrz.com/db/KI7UNJ
http://bit.do/ki7unj
<https://www.google.com/url?q=http://bit.do/ki7unj&sa=D&source=hangouts&ust=15
21073499558000&usg=AFQjCNFcQLn6C9nmmvpQiBbD6XvN-QjKug>


------------------------------

Message: 9
Date: Thu, 4 Jul 2019 04:02:46 +0000 (UTC)
From: Robert MacHale <robert.machale@?????.???>
To: KI7UNJ Tucker <ki7unj@?????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Turned the corner on AISAT-1 APRS digipeats
Message-ID: <1519481495.2794018.1562212966013@????.?????.???>
Content-Type: text/plain; charset=UTF-8

Yes, that's what I'm talking about. Thanks for sharing!
Robert MacHale. KE6BLR Ham Radio License.?http://spaceCommunicator.club/igates
. Supporting Boy Scout Merit Badges in Radio, Robotics, and Space Exploration


    On Wednesday, July 3, 2019, 8:57:20 PM PDT, KI7UNJ Tucker
<ki7unj@?????.???> wrote:

 Yes, it can be done...
http://aprs.org/pcsat.html?search for the word "double" on that page and you
will see some references to it being done?

On Wed, Jul 3, 2019 at 8:51 PM Robert MacHale via AMSAT-BB
<amsat-bb@?????.???> wrote:

Random Though -- when two satellites are in range, can you bounce your APRS
packet from Sat1 to Sat2 then finally to an iGate?
KE6BLR>APRS,AISAT-1,ARISS:HELLO WORLD!
Could this produce:
KE6BLR>APRS,AISAT-1*,ARISS:HELLO WORLD!
Then:
KE6BLR>APRS,AISAT-1*,ARISS*:HELLO WORLD!
Next:
KE6BLR>APRS,AISAT-1*,ARISS*,qAR,N6DAN-1:HELLO WORLD!
73
Robert MacHale. KE6BLR Ham Radio License.?http://spaceCommunicator.club/igates
. Supporting Boy Scout Merit Badges in Radio, Robotics, and Space Exploration


? ? On Wednesday, July 3, 2019, 8:27:20 PM PDT, Scott via AMSAT-BB
<amsat-bb@?????.???> wrote:?

?Greetings!

Being smart would be cool, but sometimes it's just easier to be lucky.

Since the launch of AISAT-1, I have really struggled to get digipeated thru
that satellite.? At best, I could get in a single digipeat but only at the
exact moment of closest approach on a high pass.? Armed with seeing that
repeatedly, I thought doppler tracking the 145.825 FM uplink might help,
but it did not.

So tonight (4-July UTC), by pure coincidence, there was a high pass of
AISAT-1 immediately following a pass of PSAT-2.? Following Bob's (WB4APR)
recommendation to use NARROW-FM on PSAT-2 (worked well), I thought "what
the heck", I'll leave my radio set on NARROW-FM for the pass of AISAT-1 as
well.? I'll even doppler track the AISAT-1 uplink while I'm at it.

Boom.? Got digipeated left and right.? Well before and after closest
approach, I got digipeated.? I didn't go crazy since I'm always so afraid
of blocking out other people on a simplex satellite, but I hit it enough to
see the night & day difference from what I'd been experiencing since
deployment.

If it's in the docs somewhere I missed it, but is sure seems to me that,
like PSAT-2, AISAT-1 might very well be equipped with a NARROW-FM radio.

It would be great to see if others find as much improvement as I did, so I
hope some folks will try AISAT-1 using NARROW-FM on the 145.825 APRS
digipeater.

73,

-Scott,? K4KDR
_______________________________________________
Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb

_______________________________________________
Sent via AMSAT-BB@?????.???. 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: https://www.amsat.org/mailman/listinfo/amsat-bb



--


Casey Tucker? KI7UNJhttps://twitter.com/KI7UNJ
https://www.qrz.com/db/KI7UNJ
http://bit.do/ki7unj?


------------------------------

Message: 10
Date: Thu, 4 Jul 2019 00:04:17 -0400
From: "Scott" <scott23192@?????.???>
To: <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Turned the corner on AISAT-1 APRS digipeats
Message-ID: <60C6C9791DAF405EB87B66F11235A23E@???????>
Content-Type: text/plain; format=flowed; charset="UTF-8";
reply-type=original

That?s been a goal of mine for quite a while, Robert.  It?s a long-shot, but
that?s what makes it a nice challenge.

My technique is to always transmit using the digipeater path ?ARISS, ARISS?.

Please note the result of that when digipeated via the ISS, for example:

---------------------------
20190703145345 : K4KDR-6]CQ,RS0ISS*,ARISS,qAR,KK4NAM::N1RCN :Heard you via
ISS in Montpelier, VA FM17es
---------------------------

... the ISS accepts "ARISS" as a valid path and digipeats it back down as
evidenced by the "RS0ISS*" address.  But you'll notice that my second
"ARISS" stays on the packet.  So, if ANOTHER satellite hears that
transmission from the ISS and sees "ARISS" in the path, it should happily
digipeat it as well.

So, I have no idea if I'll ever get a double-hop, but at least with more
APRS-capable satellites going into orbit, the odds improve bit-by-bit.

-Scott,  K4KDR

============================





From: Robert MacHale
Sent: Wednesday, July 03, 2019 11:50 PM
To: amsat-bb@?????.??? ; Scott
Subject: Re: [amsat-bb] Turned the corner on AISAT-1 APRS digipeats

Random Though -- when two satellites are in range, can you bounce your APRS
packet from Sat1 to Sat2 then finally to an iGate?

KE6BLR>APRS,AISAT-1,ARISS:HELLO WORLD!

Could this produce:

KE6BLR>APRS,AISAT-1*,ARISS:HELLO WORLD!

Then:

KE6BLR>APRS,AISAT-1*,ARISS*:HELLO WORLD!

Next:

KE6BLR>APRS,AISAT-1*,ARISS*,qAR,N6DAN-1:HELLO WORLD!

73

Robert MacHale
. KE6BLR Ham Radio License
. http://spaceCommunicator.club/igates
. Supporting Boy Scout Merit Badges in Radio, Robotics, and Space
Exploration



On Wednesday, July 3, 2019, 8:27:20 PM PDT, Scott via AMSAT-BB
<amsat-bb@?????.???> wrote:


Greetings!

Being smart would be cool, but sometimes it's just easier to be lucky.

Since the launch of AISAT-1, I have really struggled to get digipeated thru
that satellite.  At best, I could get in a single digipeat but only at the
exact moment of closest approach on a high pass.  Armed with seeing that
repeatedly, I thought doppler tracking the 145.825 FM uplink might help,
but it did not.

So tonight (4-July UTC), by pure coincidence, there was a high pass of
AISAT-1 immediately following a pass of PSAT-2.  Following Bob's (WB4APR)
recommendation to use NARROW-FM on PSAT-2 (worked well), I thought "what
the heck", I'll leave my radio set on NARROW-FM for the pass of AISAT-1 as
well.  I'll even doppler track the AISAT-1 uplink while I'm at it.

Boom.  Got digipeated left and right.  Well before and after closest
approach, I got digipeated.  I didn't go crazy since I'm always so afraid
of blocking out other people on a simplex satellite, but I hit it enough to
see the night & day difference from what I'd been experiencing since
deployment.

If it's in the docs somewhere I missed it, but is sure seems to me that,
like PSAT-2, AISAT-1 might very well be equipped with a NARROW-FM radio.

It would be great to see if others find as much improvement as I did, so I
hope some folks will try AISAT-1 using NARROW-FM on the 145.825 APRS
digipeater.

73,

-Scott,  K4KDR



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Message: 11
Date: Thu, 4 Jul 2019 01:36:55 -0400
From: Nicholas Mahr KE8AKW <nicholasmahr1@?????.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] PSAT2 Status and Voice Ops (and reset)
Message-ID:
<CAGu+VYuDV=L38BY7QMgbCVtMoV-uKb8C7ANUw+n_zFN1Uhnhsw@????.?????.???>
Content-Type: text/plain; charset="UTF-8"

Hi,
Heres more SSTV from PSAT-2 from tonights 01:43 and 00:05 UTC passes. Also
got a few PSK31 telemetry frames again on 375hz: PSAT-2 A cbjF
bBagjovgpqkaaq aaaa A cbjz bBadkgvmpqjEaot .  Heard Scott testing the APRS
to Voice several times sucessfully on 145.825. Still no luck on bringing up
the PSK31 transponder. Max elevation tonight was 19 degrees! Images can be
seen here from tonight:
https://twitter.com/KE8AKW/status/1146653199966842880

73 - Nick KE8AKW


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End of AMSAT-BB Digest, Vol 14, Issue 258
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