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CX2SA > SATDIG 21.01.14 21:07l 651 Lines 21196 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. AO-73 question (Todd Bloomingdale)
2. Re: AO-73 question (Todd Bloomingdale)
3. Re: 145 MHz signal blocking 435 MHz downlink
(Vince Fiscus, KB7ADL)
4. Re: AO-73 question (Paul Stoetzer)
5. Re: 145 MHz signal blocking 435 MHz downlink (Alan)
6. Re: 145 MHz signal blocking 435 MHz downlink (Jim Jerzycke)
7. Re: 145 MHz signal blocking 435 MHz downlink (Greg D)
8. CAPE-2 text to speech (Roland Zurmely)
9. Re: CAPE-2 text to speech (Nick Pugh K5QXJ)
10. Data signal in FO-29 passband (Ken Swaggart)
----------------------------------------------------------------------
Message: 1
Date: Mon, 20 Jan 2014 14:11:42 -0600
From: Todd Bloomingdale <tbloomingdale@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AO-73 question
Message-ID:
<CAHrZnnPV7BU2rEEdxgkFhApQDZbOGcu_vtX=7p4SMouhk1jPkA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
I'm interested in trying to receive the AO-73 telemetry. Currently, I'm not
able to SB, so I know that the transponder is out of question for me. But
is a SB radio needed for the telemetry?
Todd Bloomingdale- KC9LOX
Tomah, WI
------------------------------
Message: 2
Date: Mon, 20 Jan 2014 15:34:56 -0600
From: Todd Bloomingdale <tbloomingdale@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-73 question
Message-ID:
<CAHrZnnPiNbEAH2VYN6=_Sh=SEx_cwUpTUK61sDB1a-4FxFmGSw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Ok. Yes Sorry was typing my phone. Yes I was talking about SSB. I have an
HF all mode, but don't have 2 meter or 70 cm on that radio. I have a couple
FM baofengs HT's. So guess I use them for SO-50. Ive been doing some
reading and thinking of getting a USB dongle. Ive been reading on the
funcube dongles, but not in my budget right not, but was looking at these
cheap dongles. Will they work for AO-73 and other satellites?
Todd Bloomingdale- KC9LOX
Tomah, WI
On Mon, Jan 20, 2014 at 2:38 PM, Patrick STODDARD <patrick@xxxxxx.xxx>wrote:
> Todd,
>
> If you were meaning to type SSB for the type of signals
> transmitted from AO-73, then yes - you will need a radio
> capable of SSB reception to copy anything from AO-73 -
> telemetry or transponder. If you have access to a
> Kenwood TH-F6A HT, this radio has an all-mode receiver
> which may be sufficient for copying the telemetry and
> the transponder from AO-73. For the telemetry, you would
> patch the speaker audio from the radio into the mic jack
> on a PC running the FUNcube Dashboard software from the
> www.funcube.org.uk web site, and set the radio around
> 145.935 MHz USB (probably start closer to 145.938 MHz
> at the start of a pass, and end up around 145.932 MHz
> near the end of the pass). Make sure the radio you use
> has small tuning steps, and be ready to tune down during
> the pass.
>
> The daytime passes are the easiest to copy telemetry, as
> the transponder is off at that time. The telemetry is still
> on at night, but at 1/10 the power level that is used for
> the daytime passes (30mW downlink at night, compared to 300mW
> in daylight) to allow for the transponder to operate. The
> transponder transmits at 300mW across its 20 kHz passband,
> betwen 145.950 and 145.970 MHz - use USB for best performance
> when listening to the transponder. You can see some slideshow
> videos of me working the AO-73 transponder, using different
> radios as the receiver, on my YouTube channel:
>
> http://www.youtube.com/va7ewk
>
> Hope that helps. 73!
>
>
>
>
>
> Patrick WD9EWK/VA7EWK
> http://www.wd9ewk.net/
>
>
>
>
>
> On Mon, Jan 20, 2014 at 1:11 PM, Todd Bloomingdale <
> tbloomingdale@xxxxx.xxx> wrote:
>
>> I'm interested in trying to receive the AO-73 telemetry. Currently, I'm
>> not
>> able to SB, so I know that the transponder is out of question for me. But
>> is a SB radio needed for the telemetry?
>>
>> Todd Bloomingdale- KC9LOX
>> Tomah, WI
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>>
>
>
------------------------------
Message: 3
Date: Mon, 20 Jan 2014 15:06:27 -0700
From: "Vince Fiscus, KB7ADL" <vlfiscus@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
Message-ID: <5.2.1.1.2.20140120150000.00c29038@xxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 07:09 PM 1/19/2014 +0000, Jim Jerzycke <kq6ea@xxxxxxx.xxx> wrote:
>Buy a diplexer, and connect it as shown in the linked article:
>
>
>http://www.amsat.org/amsat-new/articles/Mode-J/
>
>I also tilt both of my Yagis so they're 45* to the boom, which makes them
>90* to each other.
>
>Yes, I lose some signal on terrestrial use, but ti helped cut the
>coupling, and desense, down quite a bit.
>
>73, Jim KQ6EA
One thing I've always wondered about this is, would one what to
put a 50 ohm non inductive resister on the 2M output of the
diplexer? or shouldn't that make much difference.
KB7ADL
------------------------------
Message: 4
Date: Mon, 20 Jan 2014 17:53:05 -0500
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: Todd Bloomingdale <tbloomingdale@xxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-73 question
Message-ID:
<CABzOSOrbjhRxN6o_mmyNRj660yEgs3KCNAuzTiY+z5D2qNLqdA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Some of the cheap DVB dongles will definitely work to receive the
telemetry from AO-73. You will probably be able to hear conversations
on the transponder in the evening too depending on your antenna. AO-73
has a strong signal. You will probably be able to hear the transponder
downlink from VO-52 as well.
Check out N4JTC's blog post about how to do it:
http://n4jtc.wordpress.com/2013/11/23/rtl-sdr-sdr-radio-funcube-sat-fun/
73,
Paul Stoetzer, N8HM
Washington, DC
On Mon, Jan 20, 2014 at 4:34 PM, Todd Bloomingdale
<tbloomingdale@xxxxx.xxx> wrote:
> Ok. Yes Sorry was typing my phone. Yes I was talking about SSB. I have an
> HF all mode, but don't have 2 meter or 70 cm on that radio. I have a couple
> FM baofengs HT's. So guess I use them for SO-50. Ive been doing some
> reading and thinking of getting a USB dongle. Ive been reading on the
> funcube dongles, but not in my budget right not, but was looking at these
> cheap dongles. Will they work for AO-73 and other satellites?
>
> Todd Bloomingdale- KC9LOX
> Tomah, WI
>
>
> On Mon, Jan 20, 2014 at 2:38 PM, Patrick STODDARD <patrick@xxxxxx.xxx>wrote:
>
>> Todd,
>>
>> If you were meaning to type SSB for the type of signals
>> transmitted from AO-73, then yes - you will need a radio
>> capable of SSB reception to copy anything from AO-73 -
>> telemetry or transponder. If you have access to a
>> Kenwood TH-F6A HT, this radio has an all-mode receiver
>> which may be sufficient for copying the telemetry and
>> the transponder from AO-73. For the telemetry, you would
>> patch the speaker audio from the radio into the mic jack
>> on a PC running the FUNcube Dashboard software from the
>> www.funcube.org.uk web site, and set the radio around
>> 145.935 MHz USB (probably start closer to 145.938 MHz
>> at the start of a pass, and end up around 145.932 MHz
>> near the end of the pass). Make sure the radio you use
>> has small tuning steps, and be ready to tune down during
>> the pass.
>>
>> The daytime passes are the easiest to copy telemetry, as
>> the transponder is off at that time. The telemetry is still
>> on at night, but at 1/10 the power level that is used for
>> the daytime passes (30mW downlink at night, compared to 300mW
>> in daylight) to allow for the transponder to operate. The
>> transponder transmits at 300mW across its 20 kHz passband,
>> betwen 145.950 and 145.970 MHz - use USB for best performance
>> when listening to the transponder. You can see some slideshow
>> videos of me working the AO-73 transponder, using different
>> radios as the receiver, on my YouTube channel:
>>
>> http://www.youtube.com/va7ewk
>>
>> Hope that helps. 73!
>>
>>
>>
>>
>>
>> Patrick WD9EWK/VA7EWK
>> http://www.wd9ewk.net/
>>
>>
>>
>>
>>
>> On Mon, Jan 20, 2014 at 1:11 PM, Todd Bloomingdale <
>> tbloomingdale@xxxxx.xxx> wrote:
>>
>>> I'm interested in trying to receive the AO-73 telemetry. Currently, I'm
>>> not
>>> able to SB, so I know that the transponder is out of question for me. But
>>> is a SB radio needed for the telemetry?
>>>
>>> Todd Bloomingdale- KC9LOX
>>> Tomah, WI
>>> _______________________________________________
>>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>>>
>>
>>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 5
Date: Mon, 20 Jan 2014 18:19:47 -0600
From: Alan <wa4sca@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Cc: CC <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
Message-ID: <72CD0BADAE8B4AAFB39D8FB9C583C9EF@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Vince,
Just for fun I swept the mode-J filter with an analyzer. The isolation was
good enough that it didn't
matter with the 2 meter side was terminated or not.
73s,
Alan
WA4SCA
<-----Original Message-----
<From: amsat-bb-bounces@xxxxx.xxx
<[mailto:amsat-bb-bounces@xxxxx.xxxx On Behalf Of Vince Fiscus, KB7ADL
<Sent: Monday, January 20, 2014 4:06 PM
<To: amsat-bb@xxxxx.xxx
<Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
<
<At 07:09 PM 1/19/2014 +0000, Jim Jerzycke <kq6ea@xxxxxxx.xxx> wrote:
<>Buy a diplexer, and connect it as shown in the linked article:
<>
<>
<>http://www.amsat.org/amsat-new/articles/Mode-J/
<>
<>I also tilt both of my Yagis so they're 45* to the boom,
<which makes them
<>90* to each other.
<>
<>Yes, I lose some signal on terrestrial use, but ti helped cut the
<>coupling, and desense, down quite a bit.
<>
<>73, Jim KQ6EA
<
<
<One thing I've always wondered about this is, would one what to
<put a 50 ohm non inductive resister on the 2M output of the
<diplexer? or shouldn't that make much difference.
<
<KB7ADL
<
<
<
<_______________________________________________
<Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of
<the author.
<Not an AMSAT-NA member? Join now to support the amateur
<satellite program!
<Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
<
------------------------------
Message: 6
Date: Tue, 21 Jan 2014 00:54:13 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
To: "Vince Fiscus, KB7ADL" <vlfiscus@xxx.xxx>, amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
Message-ID: <52DDC535.1080405@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
The original article said it didn't matter, but I put a 50 Ohm load on
mine just on "General Principles".
I HATE seeing a port like that unterminated!
73, Jim KQ6EA
On 01/20/2014 10:06 PM, Vince Fiscus, KB7ADL wrote:
> At 07:09 PM 1/19/2014 +0000, Jim Jerzycke <kq6ea@xxxxxxx.xxx> wrote:
>> Buy a diplexer, and connect it as shown in the linked article:
>>
>>
>> http://www.amsat.org/amsat-new/articles/Mode-J/
>>
>> I also tilt both of my Yagis so they're 45* to the boom, which makes
>> them 90* to each other.
>>
>> Yes, I lose some signal on terrestrial use, but ti helped cut the
>> coupling, and desense, down quite a bit.
>>
>> 73, Jim KQ6EA
>
>
> One thing I've always wondered about this is, would one what to
> put a 50 ohm non inductive resister on the 2M output of the
> diplexer? or shouldn't that make much difference.
>
> KB7ADL
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 7
Date: Mon, 20 Jan 2014 18:02:30 -0800
From: Greg D <ko6th.greg@xxxxx.xxx>
To: kc6uqh@xxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
Message-ID: <52DDD536.4000903@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi Art,
Yep, corrosion is a great source for harmonics. I had a similar problem
with AO-40, only mine turned out to be the relay contacts on the 70cm
antenna's RHCP / LHCP relay. Cycle them a few times and things quieted
down. But I only heard the problem when I was aimed at the big oak tree
behind our house, which was odd because the 70cm transmit antenna was
literally a few inches away from the edge of the 2.4 ghz receive dish.
Never heard of a tree acting as a diode before. Maybe the squirrels
were up to something...
Greg KO6TH
kc6uqh@xxx.xxx wrote:
> Greg,
> I had a problem with 70cm jamming 2401 down link many years ago. The problem
> turned out to be corrosion between the coax connector shell and the aluminum
> antenna element. Cleaning up the connection solved the problem. The
> corrosion acts like a diode and will make enough 3 order products to trash
> any receiver. Use liquid electrical tape or non-corrosive (doesn't smell
> like vinegar) silicon seal to keep these connections dry and clean.
> Art, KC6UQH
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of g0mrf@xxx.xxx
> Sent: Monday, January 20, 2014 1:23 AM
> To: ko6th.greg@xxxxx.xxxx kq6ea@xxxxxxx.xxxx w4tas@xxx.xxxx
> amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
>
>
> Hi Greg.
>
> Most decent VHF transmitters will already have a pretty good LPF on the
> output to reduce the harmonics.
>
> However, receivers these days tend to be DC-Daylight, so frequently need a
> filter to prevent 'blocking' by unwanted high level signals. In that case
> preventing the VHF coming into the UHF receiver can be important
>
> Thanks
>
> David
>
>
> -----Original Message-----
> From: Greg D <ko6th.greg@xxxxx.xxx>
> To: Jim Jerzycke <kq6ea@xxxxxxx.xxx>; w4tas <w4tas@xxx.xxx>; 'AMSAT Mailing
> List' <amsat-bb@xxxxx.xxx>
> Sent: Mon, 20 Jan 2014 3:47
> Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
>
>
> I know this has been answered before, but I forget. Given one Diplexer, is
> it better to put it on the Tx side to limit the 3rd harmionic going out, or
> better on the Rx side to limit the VHF fundamental coming in?
> Tony's diagram shows the later; I would have thought the former would be
> more effective (hitting the problem at its source).
>
> Greg KO6TH
>
>
> Jim Jerzycke wrote:
>> Yep, been using one of those for years!
>>
>> I have a Sinclair Labs unit that provides 100dB rejection outside of
>> the 2 Meter band.
>>
>> Jim KQ6EA
>>
>>
>> On 01/19/2014 07:32 PM, w4tas wrote:
>>> I would also suggest a low pass filter on the two meter transmitter.
>>> A diplexer will work well for this also.
>>> This will reduce the third harmonic which is causing your problem.
>>>
>>> Good luck,
>>>
>>>
>>>
>>>
>>> -----Original Message----- From: Jim Jerzycke
>>> Sent: Sunday, January 19, 2014 2:09 PM
>>> To: amsat-bb@xxxxx.xxx
>>> Subject: [amsat-bb] Re: 145 MHz signal blocking 435 MHz downlink
>>>
>>> Buy a diplexer, and connect it as shown in the linked article:
>>>
>>>
>>> http://www.amsat.org/amsat-new/articles/Mode-J/
>>>
>>> I also tilt both of my Yagis so they're 45* to the boom, which makes
>>> them 90* to each other.
>>>
>>> Yes, I lose some signal on terrestrial use, but ti helped cut the
>>> coupling, and desense, down quite a bit.
>>>
>>> 73, Jim KQ6EA
>>>
>>> On 01/19/2014 06:56 PM, Gabriel - EA6VQ wrote:
>>>> Hi all,
>>>>
>>>> I have a coupling problem in my station when trying to work FO-29.
>>>> My 2m
>>>> signal is completely blocking the 435 MHz downlink, and so I can't
>>>> hear my signal off the satellite. I guess it must be something
>>>> related to the distance between the two yagis. (I use the
>>>> terrestrial horizontal yagis you can see at
>>>> http://www.dxmaps.com/jm19hn.html ). With mode-B satellites there is
>>>> no problem. I have tried it with two different 435 receivers, and
>>>> it's exactly the same.
>>>>
>>>> Anyone has had this problem o have an idea of the possible reason?
>>>> And what
>>>> is more important, of some way to solve it?
>>>>
>>>> Thanks for any possible help.
>>>>
>>>> 73. Gabriel - EA6VQ
>>>> _________________________________________________________
>>>> Web-Site: HTTP://www.dxmaps.com
>>>> VQLog 3.1 (build 78): HTTP://www.vqlog.com
>>>> _________________________________________________________
>>>>
>>>>
>>>> _______________________________________________
>>>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the
>>>> author.
>>>> Not an AMSAT-NA member? Join now to support the amateur satellite
>>>> program!
>>>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>>>>
>>> _______________________________________________
>>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>>> Not an AMSAT-NA member? Join now to support the amateur satellite
>>> program!
>>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>> Not an AMSAT-NA member? Join now to support the amateur satellite
>> program!
>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 8
Date: Tue, 21 Jan 2014 03:04:17 -0800 (PST)
From: Roland Zurmely <py4zbz@xxxxx.xxx>
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] CAPE-2 text to speech
Message-ID:
<1390302257.64193.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
On orbit #950 over GH70un Sete Lagoas, Brazil.
"Hello papa yankee 5 lima foxtrot, 73 from papa yankee 4 zulu bravo zulu"
with the voice of Perfect Paul and Robo Robert:
http://www.qsl.net/py4zbz/C21py5lf.wav
73 de Roland PY4ZBZ
------------------------------
Message: 9
Date: Tue, 21 Jan 2014 09:16:00 -0600
From: "Nick Pugh K5QXJ" <quadpugh@xxxxxxxxx.xxx>
To: "'Roland Zurmely'" <py4zbz@xxxxx.xxx>, "'AMSAT'"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: CAPE-2 text to speech
Message-ID: <013401cf16bb$b2a9ed90$17fdc8b0$@xxx>
Content-Type: text/plain; charset="us-ascii"
Tnx
roland
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Roland Zurmely
Sent: Tuesday, January 21, 2014 5:04 AM
To: AMSAT
Subject: [amsat-bb] CAPE-2 text to speech
On orbit #950 over GH70un Sete Lagoas, Brazil.
"Hello papa yankee 5 lima foxtrot, 73 from papa yankee 4 zulu bravo zulu"
with the voice of Perfect Paul and Robo Robert:
http://www.qsl.net/py4zbz/C21py5lf.wav
73 de Roland PY4ZBZ
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 10
Date: Tue, 21 Jan 2014 10:08:43 -0800
From: "Ken Swaggart" <k.swaggart@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Data signal in FO-29 passband
Message-ID: <6A56F42F57E54652B7753EEBA5B9CA12@xxxxxxx>
Content-Type: text/plain; format=flowed; charset="utf-8";
reply-type=response
During FO-29 passes near the USA west coast I've noticed a 9600 baud data
signal in the downlink. Today I finally got a decode and the OnLineKissPlus
file shows:
? 2014-01-21 17:56:35.490 UTC?????jhl?????nhr ?This is another Trailblazer
Repeater test` ?
The uplink would be about 145.945 MHz.
Anyone have an ID?
73,
Ken, W7KKE
CN75xa
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 9, Issue 24
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