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CX2SA > SATDIG 09.11.18 21:19l 819 Lines 30909 Bytes #999 (0) @ WW
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>From cx2sa%cx2sa.sal.ury.soam@i0ojj.ampr.org Fri Nov 9 20:15:25 2018
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To : SATDIG@WW
Today's Topics:
1. Re: Making a phasing line for 70cm polarity switch (Gregory Beat)
2. Re: HRD tracking errors (Francis Geraci)
3. Re: HRD tracking errors (Pedro Converso)
4. Re: HRD tracking errors (Francis Geraci)
5. Re: android (sean fay)
6. Re: android (Ryan Noguchi)
7. Re: android (David Johnson)
8. ANS-313 AMSAT News Service Special Bulletin - Fox-1Cliff
Currently Scheduled for November 19th Launch (Paul Stoetzer)
9. FUNcube Warehouse Testing (David Johnson)
10. Office Closed (Martha)
11. Re: APRS satellite dual hop (E.Mike McCardel)
----------------------------------------------------------------------
Message: 1
Date: Fri, 09 Nov 2018 07:14:09 -0600
From: Gregory Beat <w9gb@??????.???>
To: propgrinder@?????.???? amsat-bb@?????.???
Subject: Re: [amsat-bb] Making a phasing line for 70cm polarity switch
Message-ID: <692AB14D-5E3D-4F3E-8A58-1666D4AC97F2@??????.???>
Content-Type: text/plain; charset=utf-8
You can see the 70cm phasing cabling in this photo.
http://www.gulfalphaantennas.com/satellite%20yagi%20sub%20index.html
Matching and Phasing Stubs for Two Antennas, by SV1BSX
Common for satellite antennas for polarity switching.
https://www.qsl.net/sv1bsx/antenna-pol/polarization.html#phase%20delay
===
Pete, WB4CGA (Gulf Alpha Antennas) retired in June 2015.
However, in April 2016 Arrow Antennas LLC of Cheyenne, Wyoming acquired the
rights to the designs of all Gulf Alpha VHF, UHF, and Satellite antennas as
well as the rights to manufacture and sell those products. Parts inquiries
should be submitted to Arrow Antennas LLC.
http://www.arrowantennas.com/main/mail.html
?
Note from Pete, a few years ago:
Important Notice about phasing cables and connectors on the Gulf Alpha
circular polarity antennas.
For a long time Gulf Alpha used LMR 400-75 as the cable of choice for the
phasing of our satellite CPs. Because this cable is so stiff and the bends
required to connect the cables on the 70cm antennas was very tight, the
crimps were too stressed and sometimes the cable pulled out of the
connector. We used the non crimp solder type for a while. These had their
own problems in that they would twist and the braid would become totally
disconnected. Again the cable would pull out of the connector.
We are now shipping these antennas with LMR 240-75. This cable is smaller
than it's larger counterpart and should solve the problem. All antennas
including 2 meters will have top quality Type N four hole flange female
connectors on the T match blocks. No more SO 239's and PL259's. Cable ends
are prepared with Times MicroWave strip tools designed for this cable.
===
Date: Thu, 8 Nov 2018 08:26:19 -0800
From: Bob Hammond, WL7CQX
To: amsat-bb@?????.???
Subject: [amsat-bb] Making a phasing line for 70cm polarity switch
I would like to know how to make a 1/2 wave phasing line for my Gulf Alpha
70cm polarity switch. I've lost the original one while moving.
I understand that using a SWR meter is how it's done but I'm not sure of
the details. Is there a better way?
I'd appreciate some help.
Bob
WL7CQX
Sent from iPad Air
------------------------------
Message: 2
Date: Fri, 9 Nov 2018 08:49:51 -0500
From: Francis Geraci <fgeraci14@?????.???>
To: wandtosborne@?????.???? Suryono Adisoemarta via AMSAT-BB
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] HRD tracking errors
Message-ID:
<CA+QL-dApzzEKusyByXsGmDUYvZTfKzXT1je_E56hQ=YEx15s+Q@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Terry,
Thanks for the thoughts.
I "combed" thru the Keps. I did notice that AO-91 had a catalog # of
43015, not 43017. I corrected that. Still, no Joy. AO-92 is OK. AO-85 still
a problem, and AO-91 is still 30 minutes off.
It definitely is something with the Keps. HRD and SatPC32 use different
"element sets".
SatPC32 uses "nasa.txt", HRD uses "nasabare.txt and amateur.txt". I need to
figure out how to get "nasa.all" into HRD. And, one of the 2 element sets,
in HRD, is loading 3 keps entries for AO-91, each with different "catalog
numbers", as noted above.
Also, I have noticed with each "update" (many), the sat track gets slower
loading.
There is an "upcoming" update. I may try and "uninstall" HRD, reinstall
with a "fresh" copy.
Thanks again. Best from the "Florida Keys"
WB1FXX
On Thu, Nov 8, 2018 at 8:25 PM Wendy and Terry Osborne <
wandtosborne@?????.???> wrote:
> Hi Francis,
>
> Do you have multiple entries for AO-91 and AO-85?
> I have found this to be a problem with some other tracking programs.
> What happens is that you load the keps just after launch before the sats
> have been finally identified.
> The keps are then updated with a different object number and you get 2
> entries for a given sat.
>
> I've just downloaded a demo of HDR Sat and I just have 1 entry for each
> and
> it tracks correctly.
>
> 73,
> Terry Osborne ZL2BAC
>
> -----Original Message-----
> From: Francis Geraci
> Sent: Friday, November 09, 2018 6:24 AM
> To: Suryono Adisoemarta via AMSAT-BB
> Subject: [amsat-bb] HRD tracking errors
>
> I use HRD Sat., SatPC32 and Amsat Droid.
> SatPC32 and Amsat Droid agree on position of FM birds, HRD shows some birds
> 30 min. earlier than expected. Mainly, AO-91 and AO-85. Anyone else noticed
> this tracking error ?
> I have "poured" thru ALL HRD's settings, reloaded keps, etc. Nothing seems
> to correct this tracking anomaly. Grrrrr.
>
> Best to All - WB1FXX
> _______________________________________________
> 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: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
------------------------------
Message: 3
Date: Fri, 9 Nov 2018 11:31:46 -0300
From: Pedro Converso <pconver@?????.???>
To: Francis Geraci <fgeraci14@?????.???>
Cc: Suryono Adisoemarta via AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] HRD tracking errors
Message-ID:
<CANTZqK=ez_qmSuz65JnRudS0e6VQkBiCUxg2v7v5AZ_xOVYE+A@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
If possible to set on your tracking pgms,
Try http://amsat.org.ar/keps.txt
All sats Keps updated every 4 hours
73, lu7abf, Pedro
On 11/9/18, Francis Geraci <fgeraci14@?????.???> wrote:
> Terry,
> Thanks for the thoughts.
> I "combed" thru the Keps. I did notice that AO-91 had a catalog # of
> 43015, not 43017. I corrected that. Still, no Joy. AO-92 is OK. AO-85 still
> a problem, and AO-91 is still 30 minutes off.
> It definitely is something with the Keps. HRD and SatPC32 use different
> "element sets".
> SatPC32 uses "nasa.txt", HRD uses "nasabare.txt and amateur.txt". I need to
> figure out how to get "nasa.all" into HRD. And, one of the 2 element sets,
> in HRD, is loading 3 keps entries for AO-91, each with different "catalog
> numbers", as noted above.
> Also, I have noticed with each "update" (many), the sat track gets slower
> loading.
> There is an "upcoming" update. I may try and "uninstall" HRD, reinstall
> with a "fresh" copy.
>
> Thanks again. Best from the "Florida Keys"
> WB1FXX
>
>
>
> On Thu, Nov 8, 2018 at 8:25 PM Wendy and Terry Osborne <
> wandtosborne@?????.???> wrote:
>
>> Hi Francis,
>>
>> Do you have multiple entries for AO-91 and AO-85?
>> I have found this to be a problem with some other tracking programs.
>> What happens is that you load the keps just after launch before the sats
>> have been finally identified.
>> The keps are then updated with a different object number and you get 2
>> entries for a given sat.
>>
>> I've just downloaded a demo of HDR Sat and I just have 1 entry for each
>> and
>> it tracks correctly.
>>
>> 73,
>> Terry Osborne ZL2BAC
>>
>> -----Original Message-----
>> From: Francis Geraci
>> Sent: Friday, November 09, 2018 6:24 AM
>> To: Suryono Adisoemarta via AMSAT-BB
>> Subject: [amsat-bb] HRD tracking errors
>>
>> I use HRD Sat., SatPC32 and Amsat Droid.
>> SatPC32 and Amsat Droid agree on position of FM birds, HRD shows some
>> birds
>> 30 min. earlier than expected. Mainly, AO-91 and AO-85. Anyone else
>> noticed
>> this tracking error ?
>> I have "poured" thru ALL HRD's settings, reloaded keps, etc. Nothing
>> seems
>> to correct this tracking anomaly. Grrrrr.
>>
>> Best to All - WB1FXX
>> _______________________________________________
>> 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: http://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: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 4
Date: Fri, 9 Nov 2018 09:38:36 -0500
From: Francis Geraci <fgeraci14@?????.???>
To: Pedro Converso <pconver@?????.???>
Cc: Suryono Adisoemarta via AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] HRD tracking errors
Message-ID:
<CA+QL-dD5=ByyHr8YCoJHG2RaRNAfRzTmv6zoQ6MAeFvN+gCS8A@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Thanks for the tip!
But, unfortunately, HRD and SatPC32 don't offer that choice. I guess I'll
have to "load" them manually. I used to do that back with the "DOS" base
software with the RS series of Sats. Jeeezz... Have I been doing "Sats"
that Long ?
Best 73, WB1FXX
On Fri, Nov 9, 2018 at 9:31 AM Pedro Converso <pconver@?????.???> wrote:
> If possible to set on your tracking pgms,
>
> Try http://amsat.org.ar/keps.txt
>
> All sats Keps updated every 4 hours
>
> 73, lu7abf, Pedro
>
> On 11/9/18, Francis Geraci <fgeraci14@?????.???> wrote:
> > Terry,
> > Thanks for the thoughts.
> > I "combed" thru the Keps. I did notice that AO-91 had a catalog # of
> > 43015, not 43017. I corrected that. Still, no Joy. AO-92 is OK. AO-85
> still
> > a problem, and AO-91 is still 30 minutes off.
> > It definitely is something with the Keps. HRD and SatPC32 use different
> > "element sets".
> > SatPC32 uses "nasa.txt", HRD uses "nasabare.txt and amateur.txt". I need
> to
> > figure out how to get "nasa.all" into HRD. And, one of the 2 element
> sets,
> > in HRD, is loading 3 keps entries for AO-91, each with different "catalog
> > numbers", as noted above.
> > Also, I have noticed with each "update" (many), the sat track gets slower
> > loading.
> > There is an "upcoming" update. I may try and "uninstall" HRD, reinstall
> > with a "fresh" copy.
> >
> > Thanks again. Best from the "Florida Keys"
> > WB1FXX
> >
> >
> >
> > On Thu, Nov 8, 2018 at 8:25 PM Wendy and Terry Osborne <
> > wandtosborne@?????.???> wrote:
> >
> >> Hi Francis,
> >>
> >> Do you have multiple entries for AO-91 and AO-85?
> >> I have found this to be a problem with some other tracking programs.
> >> What happens is that you load the keps just after launch before the sats
> >> have been finally identified.
> >> The keps are then updated with a different object number and you get 2
> >> entries for a given sat.
> >>
> >> I've just downloaded a demo of HDR Sat and I just have 1 entry for each
> >> and
> >> it tracks correctly.
> >>
> >> 73,
> >> Terry Osborne ZL2BAC
> >>
> >> -----Original Message-----
> >> From: Francis Geraci
> >> Sent: Friday, November 09, 2018 6:24 AM
> >> To: Suryono Adisoemarta via AMSAT-BB
> >> Subject: [amsat-bb] HRD tracking errors
> >>
> >> I use HRD Sat., SatPC32 and Amsat Droid.
> >> SatPC32 and Amsat Droid agree on position of FM birds, HRD shows some
> >> birds
> >> 30 min. earlier than expected. Mainly, AO-91 and AO-85. Anyone else
> >> noticed
> >> this tracking error ?
> >> I have "poured" thru ALL HRD's settings, reloaded keps, etc. Nothing
> >> seems
> >> to correct this tracking anomaly. Grrrrr.
> >>
> >> Best to All - WB1FXX
> >> _______________________________________________
> >> 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: http://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: http://www.amsat.org/mailman/listinfo/amsat-bb
> >
>
------------------------------
Message: 5
Date: Fri, 9 Nov 2018 08:55:10 -0600
From: sean fay <spatrickfay@?????.???>
To: Bob- W7LRD <w7lrd@???????.???>
Cc: AMSAT -BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] android
Message-ID:
<CAEWsTrPH7=sHLfLYSahCHJuq6UP5yOoy7B_OrAHc64aRnqxjUg@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Heavens Above
On Thu, Nov 8, 2018, 5:07 PM Bob- W7LRD <w7lrd@???????.??? wrote:
> Hi - The best tracking program for a Motorola android is?
>
> Thanks 73 Bob Johnson W7LRD
>
>
>
>
> _______________________________________________
> 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: http://www.amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 6
Date: Fri, 9 Nov 2018 15:05:35 +0000 (UTC)
From: Ryan Noguchi <ai6do@?????.???>
To: amsat-bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] android
Message-ID: <892202288.1519921.1541775935390@????.?????.???>
Content-Type: text/plain; charset=UTF-8
I've used several apps on Android, including AMSATDroid Free, Heavens
Above, OSCAR, and others, but have settled on ISS Detector. It has a lot of
unique features that set it apart from the rest.?
If you pay the very small price (a buck or two)?for the amateur satellite
package, you get the ability to limit the display to only those satellites
you want to see. For example, if you can only work FM sats, then just show
those and hide all the rest.? AMSATDroid Free requires you to select a
specific satellite, which is a pain when you can work twenty of them. And?
AMSATDroid Free has those satellites in a pull-down menu that isn't in any
obvious order! Heavens Above doesn't allow you to filter satellites at all,
so you have to wade through a couple of hundred satellites, most of which
are not workable.?
Another nice feature is that you can limit the elevation of passes to hide
those that are too low for you to work. I can't work anything below 10
degrees at home (and have to hike a block to go down to about 15 degrees to
the east), so being able to set those limits avoids a lot of false-alerm
notifications for unworkable passes.?
Those notifications are also a nice feature. I have mine set with a ringtone
of "SAT" in Morse, but you could set it to any ringtone you like. It'd be
nice if I could set each satellite with its own notification ringtone in
Morse, but at least being able to distinguish the satellite notifications
from other notifications is helpful.?
ISS Detector also provides real-time display of the Doppler shift, which is
helpful when you're learning the proper shift points for Doppler frequency
adjustment during a pass. A lot of users have gotten used to the generous
AFC available on the recent Fox-1 satellites, and will have to be more
disciplined about Doppler control on Fox-1C, which doesn't have AFC.?
If you set the phone/tablet down on a fixed surface while you operate, it
isn't always practical to rotate it to face north. ISS Detector allows you
to rotate the az/el display to face in any direction. This isn't as
important if you're using a phone, especially if you're wearing it on a
velcro armband as I do, but is very helpful if you use a tablet with a tilt
stand. I do this a lot when I work linears, since ISS Detector allows you to
see both the az/el display screen and the real-time Doppler values screen at
the same time if you use a tablet in landscape display mode. On a phone or
in portrait mode, you can only see one of those screens ata? time, although
swiping from one screen to the other is fast and I've done that even on
AO-92 L/v mode, where Doppler shift corrections have to be made more quickly
than in U/v mode.?
ISS Detector allows you to project out 7 days. AMSATDroid Free only projects
24 hours. Heavens Above allows you to select an arbitrary date in the
future, which is convenient for longer-term planning. I did my initial
planning for Field Day about 2 months ahead and found most of the passes
were still fairly close to the predictions that far out, with the exception
of the packet satellites. This feature of Heavens Above is sometimes useful.
But that's the only benefit I've found that any of those other apps have
that ISS Detector doesn't.?
73, Ryan AI6DO
On Thursday, November 8, 2018, 3:07:52 PM PST, Bob- W7LRD
<w7lrd@???????.???> wrote:
Hi - The best tracking program for a Motorola android is?
Thanks? 73 Bob Johnson W7LRD
------------------------------
Message: 7
Date: Fri, 9 Nov 2018 15:24:59 +0000
From: David Johnson <dave@?????.??.??>
To: Ryan Noguchi <ai6do@?????.???>
Cc: amsat-bb <amsat-bb@?????.???>
Subject: Re: [amsat-bb] android
Message-ID: <4F598854-E672-496C-B9FE-96B44B4CDA73@?????.??.??>
Content-Type: text/plain; charset=us-ascii
Hi,
With the release of ISS Detector i stopped active development of
AmsatDroidFree as it had all the features that I had
planned to add over time.
The source to AmsatDroidFree is now Open Source at:
https://github.com/g4dpz/AmsatDroidFree
73
- Dave, G4DPZ
> On 9 Nov 2018, at 15:05, Ryan Noguchi via AMSAT-BB <amsat-bb@?????.???>
wrote:
>
> ISS Detector
------------------------------
Message: 8
Date: Fri, 9 Nov 2018 10:36:45 -0500
From: Paul Stoetzer <n8hm@????.???>
To: AMSAT BB <amsat-bb@?????.???>
Subject: [amsat-bb] ANS-313 AMSAT News Service Special Bulletin -
Fox-1Cliff Currently Scheduled for November 19th Launch
Message-ID:
<CABzOSOqCSX36yoA3kvT74CL_ToK=UvMo2_HTZvH2ZVq+wJwVuQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
AMSAT NEWS SERVICE SPECIAL BULLETIN
ANS-313.01
SB SAT @ AMSAT $ANS-313.01
ANS-313 AMSAT News Service Special Bulletin
AMSAT News Service Special Bulletin 313.01
From AMSAT HQ KENSINGTON, MD
DATE November 9, 2018
To All RADIO AMATEURS
BID: $ANS-313.01
Fox-1Cliff Currently Scheduled for November 19th Launch
AMSAT is counting down to the launch of the next Fox-1 satellite,
Fox-1Cliff.
Per Spaceflight Now, the launch of Spaceflight's SSO-A SmallSat
Express mission, on a SpaceX Falcon 9 from Vandenberg Air Force Base,
is currently scheduled for November 19, 2018 at 18:32 UTC.
Fox-1Cliff carries the Fox-1 U/v FM repeater, AMSAT?s L-Band
Downshifter, the flight spare of the AO-85 Vanderbilt University Low
Energy Proton (LEP) radiation experiment, and the standard Fox-1 Penn
State University?Erie MEMS gyroscope experiment. Virginia Tech
provided a VGA camera which is the same as AO-92's but will provide
images at a higher 640 x 480 resolution. Additional information about
the launch and early operations phase (LEOP) will be released prior
to launch.
As part of the preparations for the launch of Fox-1Cliff, AMSAT is
making the ?Getting Started With Amateur Satellites? book available
for a limited time as a download with any paid new or renewal
membership purchased via the AMSAT Store. This offer is only
available with purchases completed online, and for only a limited
time. A perennial favorite, Getting Started is updated every year
with the latest amateur satellite information, and is the premier
primer of satellite operation. The 186 page book is presented in PDF
format, in full color, and covers all aspects of making your first
contacts on a ham radio satellite.
Please take advantage of this offer today by visiting the AMSAT store
at https://www.amsat.org/shop/ and selecting any membership option.
While there, check out AMSAT?s other items, including the M2 LEOpack
antenna system, Arrow antennas, AMSAT shirts, and other swag. Be sure
to view your cart before going to checkout. If you add a membership
and then go directly to checkout, you?ll never see an option to add
your free gift.
Fox-1Cliff is named in honor of long-time AMSAT member, contributor,
and benefactor Cliff Buttschardt, K7RR (SK), who passed away in 2016.
Cliff?s contributions to AMSAT and other amateur satellite programs,
including serving as an adviser during the initial development of the
CubeSat specification at California Polytechnic State University,
earned him the Lifetime Achievement Award from Project OSCAR in 2006.
In addition to regular membership, AMSAT offers life memberships,
and sustaining donors to AMSAT Project Funds, will be eligible to
receive additional benefits. Application forms are available from
the AMSAT Office.
Primary and secondary school students are eligible for membership
at one-half the standard yearly rate. Post-secondary school students
enrolled in at least half time status shall be eligible for the student
rate for a maximum of 6 post-secondary years in this status.
Contact Martha at the AMSAT Office for additional student membership
information.
73 and Remember to help keep Amateur Radio in space,
This week's ANS Contributing Editor,
Paul Stoetzer, N8HM
n8hm at amsat dot org
------------------------------
Message: 9
Date: Fri, 9 Nov 2018 16:20:52 +0000
From: David Johnson <dave@?????.??.??>
To: amsat-bb <amsat-bb@?????.???>
Subject: [amsat-bb] FUNcube Warehouse Testing
Message-ID: <C3CB7A63-BC84-4C6E-A49C-15B353E3CCE5@?????.??.??>
Content-Type: text/plain; charset=us-ascii
Hi,
A big thank you to all those who contributed packets to testing the new
warehouse this week.
Sat ID
2 FC1
7 ESEO (Pre launch)
11 Nayif1
19 Jy1Sat (Pre launch)
+----+--------+---------------------+---------------------+--------------+----
--------+-------------------------+
| id | number | first_upload_date | latest_upload_date | satellite_id |
site_alias | site_id |
+----+--------+---------------------+---------------------+--------------+----
--------+-------------------------+
| 1 | 11647 | 2018-09-17 10:04:05 | 2018-11-09 10:31:45 | 19 |
NULL | g4dpz |
| 2 | 6440 | 2018-10-14 08:03:30 | 2018-11-09 16:11:55 | 7 |
NULL | g4dpz |
| 3 | 1000 | 2018-10-19 09:59:05 | 2018-10-19 10:02:40 | 1 |
NULL | g4dpz |
| 4 | 720 | 2018-10-19 10:06:25 | 2018-11-05 21:24:40 | 11 |
NULL | g4dpz |
| 5 | 3012 | 2018-11-04 15:15:40 | 2018-11-06 21:38:55 | 2 |
NULL | g4dpz |
| 6 | 666 | 2018-11-05 16:06:30 | 2018-11-07 03:27:35 | 2 |
NULL | kb6lty |
| 7 | 768 | 2018-11-05 17:11:50 | 2018-11-07 05:55:40 | 11 |
NULL | kb6lty |
| 8 | 580 | 2018-11-05 17:34:25 | 2018-11-06 08:36:20 | 2 |
NULL | HB9MFL |
| 9 | 449 | 2018-11-05 18:06:45 | 2018-11-06 08:25:30 | 2 |
NULL | Goonhilly_Earth_Station |
| 10 | 447 | 2018-11-05 18:07:40 | 2018-11-06 09:58:25 | 2 |
NULL | G3VZV_Graham_QTHR |
| 11 | 452 | 2018-11-05 18:57:30 | 2018-11-07 10:13:35 | 2 |
NULL | G0IIQ |
| 12 | 34 | 2018-11-05 18:58:20 | 2018-11-05 19:01:35 | 2 |
NULL | F6HDW |
| 13 | 113 | 2018-11-05 19:18:15 | 2018-11-06 09:42:20 | 11 |
NULL | G3VZV_Graham_QTHR |
| 14 | 192 | 2018-11-05 19:45:10 | 2018-11-05 23:05:15 | 2 |
NULL | VK5GU |
| 15 | 99 | 2018-11-05 20:51:25 | 2018-11-06 09:47:30 | 11 |
NULL | Goonhilly_Earth_Station |
| 16 | 222 | 2018-11-05 23:06:25 | 2018-11-06 00:48:35 | 11 |
NULL | VK5GU |
| 17 | 29 | 2018-11-05 23:37:10 | 2018-11-05 23:39:25 | 2 |
NULL | PV8DX |
| 18 | 152 | 2018-11-06 06:42:20 | 2018-11-06 17:40:45 | 2 |
NULL | G7SVI |
| 19 | 202 | 2018-11-06 09:43:10 | 2018-11-06 12:56:30 | 11 |
NULL | G7SVI |
| 20 | 254 | 2018-11-06 09:43:45 | 2018-11-07 12:33:55 | 11 |
NULL | G0IIQ |
| 21 | 75 | 2018-11-06 09:46:05 | 2018-11-06 09:52:50 | 11 |
NULL | dk3wn |
| 22 | 77 | 2018-11-06 16:03:25 | 2018-11-07 15:47:40 | 11 |
NULL | KA9GDO |
| 23 | 66 | 2018-11-06 17:37:40 | 2018-11-06 17:44:00 | 11 |
NULL | k9jkm |
| 24 | 114 | 2018-11-06 17:39:10 | 2018-11-06 17:49:05 | 2 |
NULL | dk3wn |
| 25 | 170 | 2018-11-06 20:26:50 | 2018-11-08 12:11:45 | 11 |
NULL | G7gqw |
| 26 | 129 | 2018-11-07 08:33:35 | 2018-11-08 20:01:20 | 2 |
NULL | G7gqw |
| 27 | 35 | 2018-11-09 12:29:00 | 2018-11-09 12:30:35 | 11 |
NULL | GW7ERI |
+----+--------+---------------------+---------------------+--------------+----
--------+-------------------------+
73
Dave, G4DPZ
------------------------------
Message: 10
Date: Fri, 9 Nov 2018 12:17:44 -0500
From: Martha <martha@?????.???>
To: AMSAT BB <amsat-bb@?????.???>, Board of Directors <bod@?????.???>
Subject: [amsat-bb] Office Closed
Message-ID:
<CAPk0USxrYxk2_Uvsicj+j2V_x3_6FJspG1teGshVeRH0A-4D7Q@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
The AMSAT Office will be closed Monday, November 12th and Tuesday, November
13th. We will reopen on the 14th
--
73- Martha
------------------------------
Message: 11
Date: Fri, 9 Nov 2018 14:01:21 -0500
From: "E.Mike McCardel" <mccardelm@?????.???>
To: Robert Bruninga <bruninga@????.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] APRS satellite dual hop
Message-ID: <B2A41922-2824-457E-8DA5-E8CA63D448D0@?????.???>
Content-Type: text/plain; charset=us-ascii
Bob,
How close would the two satellites need to be with each other to hear each
other?
EMike McCardel, AA8EM
Senior Editor AMSAT News Service
Past AMSAT-NA VP Educational Relations
> On Nov 8, 2018, at 4:25 PM, Robert Bruninga <bruninga@????.???> wrote:
>
> My bad. I misread it as a dual hop. The dual *s put in by some TNC's
> confused me.
>
> Here is how a 2 hop packet transmitted as ARISS,ARISS would look on the
> downlink in a normal TNC:
>
> PSAT,ARISS,RS0ISS* going one way or (least likely)
> RS0ISS,PSAT,ARISS* going the other (more possible)
>
> And remember, no one will find these on the ARISS or PSAT downlink pages
> because most likely only the first hop will be captured and the second hop
> will be rejected as a dupe.
>
> That is why everyone should always watch the downlink live if they want to
> capture one of those rare 2-hop APRS packets.
>
> HERE IS HOW TO DO IT:
>
> Challenges: Since PSAT has only a 0.2W transmitter, the ISS is simply
> never going to hear it. But the chance of PSAT hearing the ISS is 20
> times better. SO the best chance of success is via ISS first then PSAT.
> But if they both hear the uplink packet, then PSAT will be transmitting at
> the same time ISS is and so a dual hop is blocked.
>
> So here is the best scenario for dual hop success:
>
> 1) Transmit stations via ARISS,ARISS on one continent hitting only ISS and
> NOT hitting PSAT at same time
> 2) PSAT in footprint of ISS but also over mostly ocean so it might hear
> ISS without lots of user QRM
> 4) Receiving station on a distant continent looking out over water towards
> PSAT.
>
> Then chances could be good. Notice, the transmitting stations can be any
> users as long as they are using the ARISS,ARISS path. So the only person
> that has to do any planning is simply coastal receiving stations.
>
> With both ISS and PSAT now operational, this would be a good time for all
> users to be using the transmit dual hop path of ARISS,ARISS to maximize
> someone else on some other continent receiving them!
>
> -----Original Message-----
>
>> Fm N0AN-10 To CQ Via PSAT*,ARISS* <UI pid=F0 Len=43 >[14:50:57]
>> =4206.15N/09402.30W`73 v. ISS de Hasan N0AN
>>
>> Fm WD9EWK To APK002 Via PSAT*,ARISS* <UI pid=F0 Len=21 >[14:51:11]
>> :N0AN-10 :hi dm43{N
> _______________________________________________
> 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: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Subject: Digest Footer
_______________________________________________
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 member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 13, Issue 371
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