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CX2SA > SATDIG 23.04.16 00:15l 774 Lines 24601 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: Need help decoding EO-79 packets. (J. Boyd (JR2TTS))
2. Re: Need help decoding EO-79 packets. (J. Boyd (JR2TTS))
3. Re: Need help decoding EO-79 packets. (JoAnne Maenpaa)
4. Re: Need help decoding EO-79 packets. (J. Boyd (JR2TTS))
5. Re: Need help decoding EO-79 packets. (Edson W. R. Pereira)
6. Re: Need help decoding EO-79 packets. (Edson W. R. Pereira)
7. Re: Need help decoding EO-79 packets. (J. Boyd (JR2TTS))
8. microwave reflector? (Ed K9EK)
9. ESA Edu Office prizes + Small Sat launch Apr 27 (M5AKA)
10. Newbie here (Jason Rearick)
11. Rotating PVC on Elk Antenna (Lance Homer)
12. AO-73/FUNcube mode change (Jim Heck)
13. Re: ISS Unattended Beacon Theory (UBT) - PROVE ME WRONG!
(Robert Bruninga)
14. Re: ISS Unattended Beacon Theory (UBT) - PROVE ME WRONG!
(John Becker)
15. Re: ISS Unattended Beacon Theory (UBT) - PROVE ME WRONG!
(Skyler F)
----------------------------------------------------------------------
Message: 1
Date: Fri, 22 Apr 2016 07:31:59 +0900
From: "J. Boyd (JR2TTS)" <the2belo@xxx.xxxxxxx.xx.xx>
To: pe0sat@xxxxx.xx
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Need help decoding EO-79 packets.
Message-ID: <20160422072003.83E5.THE2BELO@xxx.xxxxxxx.xx.xx>
Content-Type: text/plain; charset="UTF-8"
On Thu, 21 Apr 2016 18:56:15 +0200, PE0SAT | Amateur Radio <pe0sat@xxxxx.xx>
wrote:
> Hi Jeff,
>
> Here some extra info that might help:
>
> Use BPSK AX.25 mode when decoding QB50p1, make sure non-AX25 filter is
> not selected.
> You can try to replay the file at:
> http://janvgils.home.xs4all.nl/download/QB50px/
> to see if things are working. There three different signals in the
> file.
>
> QB50p1 1200bps and 2400 bps
> DO-64 (Delfi-C3) with 1200bps
>
> They can both be decoded with UZ7HO and AGW Online Kiss.
>
> Maybe the block diagram on the following page will also help in
> understanding how
> things can be connected.
> http://www.pe0sat.vgnet.nl/decoding/block-diagram/
Great, thanks, I will try that today.
I suppose the main problem I'm having is, I'm giving Soundmodem
something to decode (I can see the trace in its waterfall) but it's not
responding to any of it. I indeed have the "non-AX25 filter" unselected
(it is not selected as default).
There were some other things in my Soundmodem settings that did not
agree with the instructions for DeorbitSail, that may have messed it up,
so I'll try again this morning during the next pass.
--
J. Boyd, JR2TTS/NI3B
the2belo@xxx.xxxxxxx.xx.xx
http://www.flickr.com/photos/the2belo/
http://www.qrz.com/db/JR2TTS
Twitter: @xxxxxxxx
------------------------------
Message: 2
Date: Fri, 22 Apr 2016 07:34:40 +0900
From: "J. Boyd (JR2TTS)" <the2belo@xxx.xxxxxxx.xx.xx>
To: "Mike Rupprecht" <mail@xxxxxxxxxxxxxx.xx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Need help decoding EO-79 packets.
Message-ID: <20160422073216.83E8.THE2BELO@xxx.xxxxxxx.xx.xx>
Content-Type: text/plain; charset="UTF-8"
On Thu, 21 Apr 2016 18:33:09 +0200, "Mike Rupprecht"
<mail@xxxxxxxxxxxxxx.xx> wrote:
> If you successfully decode a packet you should see something like this in
> soundmodem:
>
> 2: <NON-AX25 frame Len=125> [18:29:19R]
> 2: <NON-AX25 frame Len=125> [18:29:29R]
> 2: <NON-AX25 frame Len=125> [18:29:39R]
> 2: <NON-AX25 frame Len=125> [18:29:49R]
I saw some of these appear, with varying length values, but they
appeared when there was no actual signal. When I actually fed it a
signal, it didn't respond. So perhaps I've got Soundmodem set wrong.
Non-AX25 filter is off, but maybe it's something else.
I've looked at the DeorbitSail page so I'll see if my settings match
what's there. Thanks! Will report back.
--
J. Boyd, JR2TTS/NI3B
the2belo@xxx.xxxxxxx.xx.xx
http://www.flickr.com/photos/the2belo/
http://www.qrz.com/db/JR2TTS
Twitter: @xxxxxxxx
------------------------------
Message: 3
Date: Thu, 21 Apr 2016 17:43:36 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Need help decoding EO-79 packets.
Message-ID: <00b101d19c1f$3dc3b3d0$b94b1b70$@xxx>
Content-Type: text/plain; charset="us-ascii"
> There were some other things in my Soundmodem settings that did not
> agree with the instructions for DeorbitSail, that may have messed it up,
> so I'll try again this morning during the next pass.
I'm continuing to experiment by myself on this subject of receiving
telemetry data using an SDR dongle and software. I've appreciated all the
bits of information offered by the stations who are already up and running.
One thing I'm finding with software packet reception is that the software
"modem" or software "TNC" (i.e.: soundmodem) seems to expect packets with a
good checksum. Just a single bit-flip and I don't have data.
My approach at the moment is toward improving my downlink and then I'll see
how many more packets I'll find useful.
--
73 de JoAnne K9JKM
k9jkm@xxxxx.xxx
------------------------------
Message: 4
Date: Fri, 22 Apr 2016 07:56:34 +0900
From: "J. Boyd (JR2TTS)" <the2belo@xxx.xxxxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Need help decoding EO-79 packets.
Message-ID: <20160422075402.83EB.THE2BELO@xxx.xxxxxxx.xx.xx>
Content-Type: text/plain; charset="UTF-8"
On Thu, 21 Apr 2016 17:43:36 -0500, "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
wrote:
> > There were some other things in my Soundmodem settings that did not
> > agree with the instructions for DeorbitSail, that may have messed it up,
> > so I'll try again this morning during the next pass.
>
> I'm continuing to experiment by myself on this subject of receiving
> telemetry data using an SDR dongle and software. I've appreciated all the
> bits of information offered by the stations who are already up and running.
>
> One thing I'm finding with software packet reception is that the software
> "modem" or software "TNC" (i.e.: soundmodem) seems to expect packets with a
> good checksum. Just a single bit-flip and I don't have data.
In soundmodem, I had "Bits Recovery" set to "SINGLE" initially, while
the DeorbitSail page seems to suggest it's more properly set to "NONE".
Not sure if that's significant, but your comment about flipped bits made
me suspect this. Anything's worth trying once.
--
J. Boyd, JR2TTS/NI3B
the2belo@xxx.xxxxxxx.xx.xx
http://www.flickr.com/photos/the2belo/
http://www.qrz.com/db/JR2TTS
Twitter: @xxxxxxxx
------------------------------
Message: 5
Date: Thu, 21 Apr 2016 21:51:48 -0300
From: "Edson W. R. Pereira" <ewpereira@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Need help decoding EO-79 packets.
Message-ID:
<CALNQy48T33=Juk=OvNjPi7Mb53ZXK=EspHxKgoHBSaU833zd0A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
The AX.25 implementations used in some cubesats do not implement the specs
for AX.25 destination address field encoding correctly. The last bit of the
last byte of the destination callsing (or digipeater) field should always
be 1 in order to indicate the end of the destination field, but some
implementations keep the bit as 0. This is the reason UZ7HO's soundmodem
says NON-AX25 frame. Soundmodem does pass the frame to the KISS interface
but any decoding software must be careful during the processing of the
destination callsign (by assuming there are no digipeaters).
Comparing the performance of the 1200 bps BPSK FUNcube-1 FEC encoding with
cubesats using AX.25 1200 bps BPSK makes me wander why in this day and age
we still use AX.25 for satellite links.
73, Edson PY2SDR
---
- We humans have the capability to do amazing things if we work together.
- N?s seres humanos temos a capacidade de fazer coisas incr?veis se
trabalharmos juntos.
On Thu, Apr 21, 2016 at 7:56 PM, J. Boyd (JR2TTS) <
the2belo@xxx.xxxxxxx.xx.xx> wrote:
> On Thu, 21 Apr 2016 17:43:36 -0500, "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
> wrote:
>
> > > There were some other things in my Soundmodem settings that did not
> > > agree with the instructions for DeorbitSail, that may have messed it
> up,
> > > so I'll try again this morning during the next pass.
> >
> > I'm continuing to experiment by myself on this subject of receiving
> > telemetry data using an SDR dongle and software. I've appreciated all the
> > bits of information offered by the stations who are already up and
> running.
> >
> > One thing I'm finding with software packet reception is that the software
> > "modem" or software "TNC" (i.e.: soundmodem) seems to expect packets
> with a
> > good checksum. Just a single bit-flip and I don't have data.
>
> In soundmodem, I had "Bits Recovery" set to "SINGLE" initially, while
> the DeorbitSail page seems to suggest it's more properly set to "NONE".
> Not sure if that's significant, but your comment about flipped bits made
> me suspect this. Anything's worth trying once.
>
>
> --
> J. Boyd, JR2TTS/NI3B
> the2belo@xxx.xxxxxxx.xx.xx
> http://www.flickr.com/photos/the2belo/
> http://www.qrz.com/db/JR2TTS
> Twitter: @xxxxxxxx
>
> _______________________________________________
> 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: Thu, 21 Apr 2016 21:57:03 -0300
From: "Edson W. R. Pereira" <ewpereira@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Need help decoding EO-79 packets.
Message-ID:
<CALNQy49C_bV_XF4Fg8P=SXL1xrDYz-MW19c2Q2HS4u-gkUsTBw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
A small correction:
When I wrote destination callsign, I meant source (or digipeater) callsign.
73, Edson PY2SDR
---
- We humans have the capability to do amazing things if we work together.
- N?s seres humanos temos a capacidade de fazer coisas incr?veis se
trabalharmos juntos.
On Thu, Apr 21, 2016 at 9:51 PM, Edson W. R. Pereira <ewpereira@xxxxx.xxx>
wrote:
> The AX.25 implementations used in some cubesats do not implement the specs
> for AX.25 destination address field encoding correctly. The last bit of the
> last byte of the destination callsing (or digipeater) field should always
> be 1 in order to indicate the end of the destination field, but some
> implementations keep the bit as 0. This is the reason UZ7HO's soundmodem
> says NON-AX25 frame. Soundmodem does pass the frame to the KISS interface
> but any decoding software must be careful during the processing of the
> destination callsign (by assuming there are no digipeaters).
>
> Comparing the performance of the 1200 bps BPSK FUNcube-1 FEC encoding with
> cubesats using AX.25 1200 bps BPSK makes me wander why in this day and age
> we still use AX.25 for satellite links.
>
> 73, Edson PY2SDR
>
>
> ---
> - We humans have the capability to do amazing things if we work together.
> - N?s seres humanos temos a capacidade de fazer coisas incr?veis se
> trabalharmos juntos.
>
> On Thu, Apr 21, 2016 at 7:56 PM, J. Boyd (JR2TTS) <
> the2belo@xxx.xxxxxxx.xx.xx> wrote:
>
>> On Thu, 21 Apr 2016 17:43:36 -0500, "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
>> wrote:
>>
>> > > There were some other things in my Soundmodem settings that did not
>> > > agree with the instructions for DeorbitSail, that may have messed it
>> up,
>> > > so I'll try again this morning during the next pass.
>> >
>> > I'm continuing to experiment by myself on this subject of receiving
>> > telemetry data using an SDR dongle and software. I've appreciated all
>> the
>> > bits of information offered by the stations who are already up and
>> running.
>> >
>> > One thing I'm finding with software packet reception is that the
>> software
>> > "modem" or software "TNC" (i.e.: soundmodem) seems to expect packets
>> with a
>> > good checksum. Just a single bit-flip and I don't have data.
>>
>> In soundmodem, I had "Bits Recovery" set to "SINGLE" initially, while
>> the DeorbitSail page seems to suggest it's more properly set to "NONE".
>> Not sure if that's significant, but your comment about flipped bits made
>> me suspect this. Anything's worth trying once.
>>
>>
>> --
>> J. Boyd, JR2TTS/NI3B
>> the2belo@xxx.xxxxxxx.xx.xx
>> http://www.flickr.com/photos/the2belo/
>> http://www.qrz.com/db/JR2TTS
>> Twitter: @xxxxxxxx
>>
>> _______________________________________________
>> 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: Fri, 22 Apr 2016 10:15:13 +0900
From: "J. Boyd (JR2TTS)" <the2belo@xxx.xxxxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Need help decoding EO-79 packets.
Message-ID: <20160422101309.83F1.THE2BELO@xxx.xxxxxxx.xx.xx>
Content-Type: text/plain; charset="UTF-8"
On Thu, 21 Apr 2016 18:56:15 +0200, PE0SAT | Amateur Radio <pe0sat@xxxxx.xx>
wrote:
> Hi Jeff,
>
> Here some extra info that might help:
>
> Use BPSK AX.25 mode when decoding QB50p1, make sure non-AX25 filter is
> not selected.
Update: I'm looking at a pass right now, and am getting a signal, but
Soundmodem is just refusing to budge. Maybe the signal just isn't strong
enough?
http://i.imgur.com/PbN64Jb.png
--
J. Boyd, JR2TTS/NI3B
the2belo@xxx.xxxxxxx.xx.xx
http://www.flickr.com/photos/the2belo/
http://www.qrz.com/db/JR2TTS
Twitter: @xxxxxxxx
------------------------------
Message: 8
Date: Fri, 22 Apr 2016 01:26:03 +0000 (UTC)
From: Ed K9EK <e.krome@xxxxxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] microwave reflector?
Message-ID:
<71162473.22027514.1461288363487.JavaMail.zimbra@xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Hi all:
A lot of us subscribe to both AMSAT and the Microwave reflectors... the
latter of which seems to have disappeared. I knew Tom was having some issues
with his provider, but it appears that "microwave" is off line. Test and
subscribe both bounce. Anybody have any idea what happened or if it still
alive?
Thanks and 73
Ed K9EK
------------------------------
Message: 9
Date: Fri, 22 Apr 2016 13:38:50 +0000 (UTC)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] ESA Edu Office prizes + Small Sat launch Apr 27
Message-ID:
<699101510.555821.1461332330236.JavaMail.yahoo@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
ESA's Education Office to give prize to first three radio amateurs to send
recorded signal from either AAUSAT4, E-st@xxxx or OUFTI-1
http://www.esa.int/Education/CubeSats_-_Fly_Your_Satellite/Be_the_first_to_cat
ch_a_signal_from_Fly_Your_Satellite!_from_space
D-STAR CubeSat launch 2102 UT Friday, April 22
https://amsat-uk.org/2016/04/05/d-star-satellite-to-launch-from-kourou/
Wellesley House School Tim Peake Contact Saturday, April 23 1210 UT
https://amsat-uk.org/2016/04/11/wellesley-house-tim-peake/
Media coverage for St Richard's Tim Peake ARISS contact
https://amsat-uk.org/2016/04/12/st-richards-catholic-college-tim-peake/
OUFTI-1 Telemetry Decoder App
https://amsat-uk.org/2016/04/20/oufti-1-telemetry-decoder-app/
April 27 at 0201 UT launch planned for AIST-2D ????-2? & SamSat-218 and
possibly other small satellites?http://www.zarya.info/GoForLaunch.php
CADRE CubeSat to deploy from ISS mid-May ?
https://amsat-uk.org/2016/04/21/cadre-cubesat-iss/
73 Trevor M5AKA
----
AMSAT-UK?http://amsat-uk.org/
Twitter?https://twitter.com/AmsatUK
Facebook https://facebook.com/AmsatUK
YouTube?https://youtube.com/AmsatUK
----
------------------------------
Message: 10
Date: Fri, 22 Apr 2016 12:00:06 -0400
From: "Jason Rearick" <jbr13@xx.xxxxxxxxx.xxx>
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Newbie here
Message-ID: <4CA49328C7474953969E7F810DBAF2F5@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello to the group. New to working the birds and enjoying it very much here
in FM18.
Jason
N3YUG
------------------------------
Message: 11
Date: Fri, 22 Apr 2016 12:45:52 -0600
From: Lance Homer <lance@xxxxxxxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Rotating PVC on Elk Antenna
Message-ID:
<CAAtZ3CMgeAZPq2cawgczX_kYgHws6CB_Bu_NvQ3aSUVW9t194w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
A week or so ago I asked about mounting the Arrow Antenna on something
other than the very end of it. I appreciated all of the great responses.
In the end, I decided to go with the Elk because I found it on eBay and
could save some money. The pvc tubing the previous owner used is difficult
to turn and I'd like to correct that. I tried Googling to see if simply
sanding the inner pipe a bit would help but I didn't get any results on
that search. What have you done to make it so that the tubing is a easy to
adjust from horizontal to vertical but still is tight enough not to shift
on its own?
Thanks,
-Lance / K7LQH
------------------------------
Message: 12
Date: Fri, 22 Apr 2016 19:33:06 +0100
From: "Jim Heck" <jim@xxxxxx.xx.xxx>
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AO-73/FUNcube mode change
Message-ID: <A0A03568F9A84312B2AB7BAA2C7AF191@xxxxxx>
Content-Type: text/plain; format=flowed; charset="UTF-8";
reply-type=response
Hi Folks,
I have just set AO-73/FUNcube into permanent transponder mode. Plan, as
usual, is to switch it back to education mode on Sunday PM UTC.
Enjoy the transponder and have a FUN weekend.
73s Jim G3WGM
------------------------------
Message: 13
Date: Fri, 22 Apr 2016 16:17:46 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] ISS Unattended Beacon Theory (UBT) - PROVE ME
WRONG!
Message-ID: <61e19e478a7aa73910aceaf64c202274@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
The APRS space channel was designed to support user applications that need
satellite connectivity. All of them use UI packets since they are the most
efficient (all data in one packet):
1) APRS user message contacts (texting and QSOs)
2) Remote position and status reporting of ham travelers beyond range
of the terrestrial network
3) Remote sensor data experiments (ocean buoys or WX data projects)
Generally, I have learned that trying to criticize how others use ham radio
is a dead end. So instead we try to nudge them towards proper operating
practice such as the guidelines on how to use the ISS digipeater:
http://aprs.org/iss-faq.html
The recommendations have always been:
* live operators use a beacon rate of 1 beacon per minute and live QSO
packets as required.
* Remote travelers (live) should set one packet every 2 minutes (live and
moving).
* For non-moving travelers and unattended data sources, we recommend one
packet every 5 minutes.
These rates can show good success for a dozen live users, a half dozen live
mobiles and nearly 2 dozen unattended beacons per pass and this is about
the average load. Though people would see higher suggess if we could get
those dead-woods to cut back their rates.
Yes, it is sad that some people transmit unattended beacons via the ISS at
1 minute rates. So what we need to encourage those unattended stations to
cut back to one packet every 5 minutes. At that rate, their load is
insignificant but they have a good chance of showing up on the heard log (
http://ariss.net) once a day and they exercise and demonstrate the utility
of the channel for remote Amateur Radio Applications.
So It would seem OK for a few policeman to look for 1 minute unattended
beacons and contact them to read the above FAQ page as their responsibility
for using the channel.
Bob Bruninga,wb4apr
*From:* Robert McGwier [mailto:rwmcgwier@xxxxx.xxxx
*Sent:* Thursday, April 21, 2016 12:11 PM
*Subject:* Re: [amsat-bb] ISS Unattended Beacon Theory (UBT) - PROVE ME
WRONG!
That is what it is now Bob. It is people on the ground doing the bleeping
and they are using it as a pseudo bent pipe transponder doing demod/remod
constantly unattended. is that how it was intended to be used?
Tell me how to stop this behavior without turning off UI? Or maybe you
feel this is not a real impediment to comms. The originator of this thread
seems to feel it is.
73s
Bob
On Thu, Apr 21, 2016 at 9:09 AM, Robert Bruninga <bruninga@xxxx.xxx> wrote:
Do you mean turn it into another BLEEPsat of our own making?..
-----Original Message-----
> Subject: ISS Unattended Beacon Theory (UBT) - PROVE ME WRONG!
>
> We should turn off digipeating of UI frames. One bit flip and it ends.
> The ISS can beacon but this activity will end.
> Bob
On Tue, Apr 19, 2016 at 12:52 PM, <skristof@xxxxxxx.xxx> wrote:
> A short exchange of name, QTH (Grid Square &/or state), then a QSL to
> acknowledge. Kind of like JT65 except faster than growing grass.
> I use... macros that can be set up with all the info, then sent with the
> push of a button. It can be done if you're paying attention and catch
> the breaks between beacons.
> 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
--
Bob McGwier
Founder, Federated Wireless, Inc
Founder and Technical Advisor, HawkEye 360, Inc
Research Professor Virginia Tech
Dir. Research: 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
------------------------------
Message: 14
Date: Fri, 22 Apr 2016 16:27:06 -0500
From: John Becker <w0jab@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] ISS Unattended Beacon Theory (UBT) - PROVE ME
WRONG!
Message-ID: <571A972A.10500@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
need to say it more often and much louder.
On 4/22/2016 3:17 PM, Robert Bruninga wrote:
> * For non-moving travelers and unattended data sources, we recommend one
> packet every 5 minutes.
>
>
------------------------------
Message: 15
Date: Fri, 22 Apr 2016 16:06:22 -0600
From: Skyler F <electricity440@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] ISS Unattended Beacon Theory (UBT) - PROVE ME
WRONG!
Message-ID:
<CAJNyT09r5jVM4S_OGT+Gx9Rmq8vJ=DELUQZdq_+8eh7fJmJ69g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
My first time listening on 145.825, I was surprised to hear a lot of
beaconing traffic that was NOT when the ISS was supposed to be overhead.
On Fri, Apr 22, 2016 at 3:27 PM, John Becker <w0jab@xxxxxxxxx.xxx> wrote:
> need to say it more often and much louder.
>
>
>
>
> On 4/22/2016 3:17 PM, Robert Bruninga wrote:
>
>> * For non-moving travelers and unattended data sources, we recommend one
>> packet every 5 minutes.
>>
>>
>>
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--
Skyler Fennell
amsatnet.info
KD?WHB
electricity440@xxxxx.xxx
------------------------------
Subject: Digest Footer
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Sent via amsat-bb@xxxxx.xxx.
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AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
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End of AMSAT-BB Digest, Vol 11, Issue 130
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