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CX2SA > SATDIG 02.06.09 01:24l 709 Lines 21942 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: AMSAT-India VO-52 Award (Rick - WA4NVM)
2. Re: true duplex radios (Clint Bradford)
3. Reminder (Martha)
4. Re: true duplex radios (Andrew Glasbrenner)
5. Re: true duplex radios (Patrick STODDARD (WD9EWK/VA7EWK))
6. Re: true duplex radios (Patrick STODDARD (WD9EWK/VA7EWK))
7. Re: true duplex radios (clintbrad4d@xxxxxxxxx.xxxx
8. Re: true duplex radios (Nate Duehr)
9. Re: true duplex radios (Howard Kowall)
10. Re: true duplex radios (Andrew Glasbrenner)
11. Correction (Martha)
12. Re: true duplex radios (Andrew Glasbrenner)
13. Re: true duplex radios (Nigel Gunn G8IFF/W8IFF)
14. Re: true duplex radios (Clint Bradford)
15. Call for Papers--2009 ARRL/TAPR Digital Communications
Conference (Ford, Steve, WB8IMY)
16. Hawaii BL11 on AO51 today? (Robert Smith)
17. Re: AMSAT-India VO-52 Award (Patrick STODDARD (WD9EWK/VA7EWK))
18. Re: true duplex radios (Ernie)
19. Re: true duplex radios (Howard Kowall)
----------------------------------------------------------------------
Message: 1
Date: Mon, 1 Jun 2009 14:04:45 -0500
From: "Rick - WA4NVM" <wa4nvm@xxxxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-India VO-52 Award
To: <n3tl@xxxxxxxxx.xxx>, <AMSAT-BB@xxxxx.xxx>
Message-ID: <4A2C3B64976649E3998C5769A38BFB26@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi All,
I received mine also today. I would also like to second the "thanks" to
AMSAT India
for a job well done and V0-52's fourth birthday.
73 to all,
Rick - WA4NVM
> Hey everyone,
>
> My VO-52 Award arrived in today's mail, and it's very, very nice. It's
> printed on a very heavy stock and is very attractive. I look forward to
> getting it in a frame and on display asap.
>
> My thanks to everyone at AMSAT-India for their efforts to make the award
> available, and for providing great operating via VO-52.
>
> 73 to all,
>
> Tim - N3TL
> _______________________________________________
> 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: 2
Date: Mon, 1 Jun 2009 12:37:16 -0700
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: amsat-bb@xxxxx.xxx
Message-ID: <D1EF5705-4B25-48EC-83D1-6E15B43E5AE0@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>> ... Yaesu FT-8800 ...
Really? Dual-receive, indeed. And will perform crossband repeating.
But I can transmit on one band and simultaneously hear myself on
another with a FT-8800?
------------------------------
Message: 3
Date: Mon, 1 Jun 2009 15:42:50 -0400
From: Martha <martha@xxxxx.xxx>
Subject: [amsat-bb] Reminder
To: amsat-bb@xxxxx.xxxx senior-officers <senior-officers@xxxxx.xxx>,
officers@xxxxx.xxxx Board of Directors <bod@xxxxx.xxx>
Message-ID:
<956751cf0906011242w53396270x8418d09d4be0165a@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
The deadline for nominations for the AMSAT BOD must be received at the AMSAT
office no later than June 12th. A nomination requires either one AMSAT
Member Society or five current AMSAT members. A director serves 2 years.
Our address is: AMSAT, 850 Sligo Ave #600, Silver Spring MD 20910.
--
73- Martha
------------------------------
Message: 4
Date: Mon, 1 Jun 2009 15:55:16 -0400
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: "Clint Bradford" <clintbrad4d@xxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <72C3985E00E14FD4A18A591FE817E81B@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
> Really? Dual-receive, indeed. And will perform crossband repeating.
> But I can transmit on one band and simultaneously hear myself on
> another with a FT-8800?
How else would it be able to cross band repeat? Page three of the manual:
"Featuring 1054 memory channels (527 channels each for "Main" and "Sub"
band), full
duplex operation with independent Volume and Squelch controls, and built-in
CTCSS and
DCS encoder/decoder circuits, ..."
73, Drew KO4MA
------------------------------
Message: 5
Date: Mon, 1 Jun 2009 13:23:44 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: amsat-bb@xxxxx.xxx
Message-ID:
<2e18ad3e0906011323o38389a50oa9897b07144b2cd2@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
> Really? Dual-receive, indeed. And will perform crossband repeating.
> But I can transmit on one band and simultaneously hear myself on
> another with a FT-8800?
Yes, the FT-8800 will let you transmit on one band while receiving
on another. Having separate volume and tuning knobs for each
VFO, something that similar radios from the other manufacturers
lack, make it nice for FM satellite work. I had one earlier this year,
before leaving it in Mexico as part of a complete FM satellite station
(one I might use on a future trip, if I didn't haul my own gear).
If I had to replace my IC-2720H, I would probably get an FT-8800 as
the replacement. Price is good, better than the IC-2820H which was
Icom's replacement for the IC-2720H, and the separate knobs for each
VFO made it a better (for me) choice than the current Kenwood
2m/70cm FM mobiles (TM-D710 or TM-V71A). And, as Drew
mentioned, its ability to function as a cross-band repeater ensures it
can work with the satellites in cross-band full-duplex mode.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 6
Date: Mon, 1 Jun 2009 13:33:10 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: amsat-bb@xxxxx.xxx
Message-ID:
<2e18ad3e0906011333h5217c70bi190a0dfd294c88b@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi!
Another HT for the "list" would be the IC-Z1A. This was a 2m/70cm
dual-bander with a detachable control head/mic, which used the
same accessories as the IC-W32A. I picked up a couple of them a
few months ago, left one in Mexico as a complete portable station
for the FM satellites (along with another complete station using an
FT-8800 mobile radio instead of an HT), and still have the second
IC-Z1A at home that I need to do something with.
Like with the IC-W32A and many other Icom 2m/70cm radios of that
time sold in North America, the IC-Z1A does not transmit below 440
MHz without a mod. It works well without modification on the current
FM satellites (AO-27, AO-51, SO-50), but the mod is needed for the
normal ISS cross-band voice repeater and for use on the 70cm band
that most of the world outside the USA and Canada has.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 7
Date: Mon, 1 Jun 2009 13:40:00 -0700
From: <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Message-ID: <E1MBEHu-0006NV-9m@xxxxxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="ISO-8859-1"
But the ability to crossband repeat doesn't automatically mean that a radio
can monitor a satellite's downlink while transmitting to it ....
-----Original Message-----
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Subj: Re: [amsat-bb] Re: true duplex radios
Date: Mon Jun 1, 2009 12:55 pm
Size: 467 bytes
To: "Clint Bradford" <clintbrad4d@xxxxxxxxx.xxx>,<amsat-bb@xxxxx.xxx>
> Really? Dual-receive, indeed. And will perform crossband repeating.
> But I can transmit on one band and simultaneously hear myself on
> another with a FT-8800?
How else would it be able to cross band repeat? Page three of the manual:
"Featuring 1054 memory channels (527 channels each for "Main" and "Sub"
band), full
duplex operation with independent Volume and Squelch controls, and built-in
CTCSS and
DCS encoder/decoder circuits, ..."
73, Drew KO4MA
------------------------------
Message: 8
Date: Mon, 01 Jun 2009 14:47:29 -0600
From: "Nate Duehr" <nate@xxxxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: amsat-bb@xxxxx.xxx
Message-ID: <1243889249.9556.1318251667@xxxxxxx.xxxxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset="ISO-8859-1"
On Mon, 1 Jun 2009 13:23:44 -0700, "Patrick STODDARD (WD9EWK/VA7EWK)"
<amsat-bb@xxxxxx.xxx> said:
> If I had to replace my IC-2720H, I would probably get an FT-8800 as
> the replacement. Price is good, better than the IC-2820H which was
> Icom's replacement for the IC-2720H, and the separate knobs for each
> VFO made it a better (for me) choice than the current Kenwood
> 2m/70cm FM mobiles (TM-D710 or TM-V71A). And, as Drew
> mentioned, its ability to function as a cross-band repeater ensures it
> can work with the satellites in cross-band full-duplex mode.
I would say "get the 2820 and try out some D-STAR/digital stuff too".
Plus the 2820 has the GPS in it... with the D-STAR installed...
IC-2820 and Kenwood's TNC/control head thing together makes a pretty
cool little "digital geek" mobile station, and with the 2820 also
capable of duplex operation...
Lots of toys = fun. Of course, to get the full utilization out of the
D-STAR portion, you really need to be in the coverage of a Gateway
(internet) equipped D-STAR repeater...
Stuff to think about...
Nate WY0X
--
Nate Duehr
nate@xxxxxxxx.xxx
------------------------------
Message: 9
Date: Mon, 1 Jun 2009 15:48:51 -0500
From: "Howard Kowall" <hkowall@xxxx.xx>
Subject: [amsat-bb] Re: true duplex radios
To: <clintbrad4d@xxxxxxxxx.xxx>, "Andrew Glasbrenner"
<glasbrenner@xxxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <001001c9e2fa$5e94c800$6701a8c0@xxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
That's correct Clint
And also being full duplex with ability to hear the sat downlink doesn't
mean it has the ability to crossband repeat also
Howard
VE4ISP
----- Original Message -----
From: <clintbrad4d@xxxxxxxxx.xxx>
To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>; <amsat-bb@xxxxx.xxx>
Sent: Monday, June 01, 2009 3:40 PM
Subject: [amsat-bb] Re: true duplex radios
> But the ability to crossband repeat doesn't automatically mean that a
> radio can monitor a satellite's downlink while transmitting to it ....
>
> -----Original Message-----
>
> From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
> Subj: Re: [amsat-bb] Re: true duplex radios
> Date: Mon Jun 1, 2009 12:55 pm
> Size: 467 bytes
> To: "Clint Bradford" <clintbrad4d@xxxxxxxxx.xxx>,<amsat-bb@xxxxx.xxx>
>
>
>
>
>> Really? Dual-receive, indeed. And will perform crossband repeating.
>> But I can transmit on one band and simultaneously hear myself on
>> another with a FT-8800?
>
> How else would it be able to cross band repeat? Page three of the manual:
>
> "Featuring 1054 memory channels (527 channels each for "Main" and "Sub"
> band), full
> duplex operation with independent Volume and Squelch controls, and
> built-in
> CTCSS and
> DCS encoder/decoder circuits, ..."
>
> 73, Drew KO4MA
>
>
>
> _______________________________________________
> 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: Mon, 1 Jun 2009 16:55:32 -0400
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: <amsat-bb@xxxxx.xxx>, <clintbrad4d@xxxxxxxxx.xxx>
Message-ID: <58EEA47490254DA0B22AB49319C44B11@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
> But the ability to crossband repeat doesn't automatically mean that a
> radio can monitor a satellite's downlink while transmitting to it ....
>
Of course it does. The radio must be able to receive on one band while
transmitting on another in order to cross band repeat, which is the same
functionality we want for satellite. All cross band repeat capable rigs are
by nature full duplex. However, not all full duplex rigs will cross band
repeat.
73, Drew KO4MA
------------------------------
Message: 11
Date: Mon, 1 Jun 2009 16:58:28 -0400
From: Martha <martha@xxxxx.xxx>
Subject: [amsat-bb] Correction
To: amsat-bb@xxxxx.xxxx Board of Directors <bod@xxxxx.xxx>,
senior-officers <senior-officers@xxxxx.xxx>, officers@xxxxx.xxxx
JoAnne Maenpaa <k9jkm@xxxxxxx.xxx>
Message-ID:
<956751cf0906011358h642baf2dm51585e390076ed44@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
After checking the bylaws, please note that the deadline for nomination is
JUNE 15th not June 12th. I sincerely apologize for the error.
--
73- Martha
------------------------------
Message: 12
Date: Mon, 1 Jun 2009 17:06:06 -0400
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: "Howard Kowall" <hkowall@xxxx.xx>, <clintbrad4d@xxxxxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Message-ID: <9736C52EF85943DFB71B520D164E32A5@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
> That's correct Clint
> And also being full duplex with ability to hear the sat downlink doesn't
> mean it has the ability to crossband repeat also
> Howard
> VE4ISP
>
Again, incorrect. Think about it for a second. In order for a radio to
receive a signal on one band and simultaneously repeat it on another (the
meaning of cross band repeat), it has to be capable of full duplex
operation. I challenge both of you to find an example that will cross band
repeat but isn't full duplex.
I think maybe you are confusing cross band repeat with cross band split
capable.
73, Drew KO4MA
------------------------------
Message: 13
Date: Mon, 01 Jun 2009 21:13:15 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Cc: clintbrad4d@xxxxxxxxx.xxxx amsat-bb@xxxxx.xxx
Message-ID: <4A24446B.4090209@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
And being able to tune each band independently whilst transmitting isn't
something many of them can do.
------------------------------
Message: 14
Date: Mon, 1 Jun 2009 14:18:01 -0700
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <5AAE75FE-9B32-4A91-B8B1-828D59DA86B2@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
> >> ... Again, incorrect ...
I have obviously been successfully working the FM birds with 1-to-4W
handheld radios too long ... (grin). I am going to pull out my FT-8800
- check Menu Set Item 24 - and program it for a couple upcoming passes.
Clint, K6LCS
------------------------------
Message: 15
Date: Mon, 1 Jun 2009 17:56:43 -0400
From: "Ford, Steve, WB8IMY" <sford@xxxx.xxx>
Subject: [amsat-bb] Call for Papers--2009 ARRL/TAPR Digital
Communications Conference
To: "RTTY Reflector" <rtty@xxxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>,
<vhf@xxxx.xxxxxxxx.xxx>, <psk31@xxxxxxx.xx.xxx.xx>,
<digitalradio@xxxxxxxxxxx.xxx>
Message-ID:
<AD6F46BB3421B241903D155572BA86FE05F33B9C@xxxxxxxx.xxxxxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Technical papers are solicited for presentation at the 28th Annual ARRL and
TAPR Digital Communications Conference to be held September 25-27, 2009 in
Chicago, Illinois. These papers will also be published in the Conference
Proceedings (you do NOT need to attend the conference to have your paper
included in the Proceedings). The submission deadline is July 31, 2009. Please
send papers to:
Maty Weinberg
ARRL
225 Main St
Newington, CT 06111
or you can make your submission via e-mail to: maty@xxxx.xxx
Papers will be published exactly as submitted and authors will retain all
rights.
73 . . . Steve, WB8IMY
ARRL
------------------------------
Message: 16
Date: Mon, 1 Jun 2009 12:18:10 -1000
From: "Robert Smith" <dukenuke@xxxx.xxx>
Subject: [amsat-bb] Hawaii BL11 on AO51 today?
To: "Amsat-Bb@xxxxx. Org" <amsat-bb@xxxxx.xxx>
Message-ID: <D887849CF35545CC83CEA54E9249AD91@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Aloha All
I've noticed that AO-51 will have a maximum
elevation of 2 degrees on todays "easterly"
Hawaiian pass. The footprint will extend from
Honolulu to near the western border of Iowa.
To date, my "longest" AO-51 QSO has
been with K7ULS near Eden, Utah. This
may be an opportunity to extend that
distance. I am willing to give it a try.
The pass "over" Hawaii will be from 0232Z
to 0236Z today. I should be at the beach
with my Arrow and D700 shortly before
that (5 Watts). At minimum, I will get to
see some nice sceney on the way to the
beach HIHI. Hope to hear you.
Aloha and 73, de robert
NH7WN in Honolulu.
------------------------------
Message: 17
Date: Mon, 1 Jun 2009 15:23:03 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-India VO-52 Award
To: amsat-bb@xxxxx.xxx
Message-ID:
<2e18ad3e0906011523w3c071ab4j57776640814295ed@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi!
> My VO-52 Award arrived in today's mail, and it's very, very nice. It's
> printed on a very heavy stock and is very attractive. I look forward to
> getting it in a frame and on display asap.
Mine was in the PO box this afternoon, also. A very nice certificate!
Thanks to AMSAT India for this!
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 18
Date: Mon, 01 Jun 2009 18:36:12 -0400
From: Ernie <w8eh.ernie@xxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: amsat-bb@xxxxx.xxx
Message-ID: <4A2457DC.4060701@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
My FT-8800 is my main FM sat rig. It is the perfect 'mobile' type for FM
sats with the independent volume, squelch and tuning controls for each
side (band). Full duplex crossband works perfectly. I even have mine
rigged up with an external speaker/switch box with headphone jack. I can
plug in the headphones, switch off the speaker and talk full duplex
without feedback.
Having the 6 pre-program buttons on the front helps too. Mine is set up
so that when I press button six, the VHF side goes to the AO-51 uplink
and the UHF side goes to the downlink. I tune the UHF side as the
doppler changes. Button 5 switches to AO-27 and SO-50.
Ernie W8EH
Andrew Glasbrenner wrote:
>
>
>> Really? Dual-receive, indeed. And will perform crossband repeating.
>> But I can transmit on one band and simultaneously hear myself on
>> another with a FT-8800?
>>
>
> How else would it be able to cross band repeat? Page three of the manual:
>
> "Featuring 1054 memory channels (527 channels each for "Main" and "Sub"
> band), full
> duplex operation with independent Volume and Squelch controls, and built-in
> CTCSS and
> DCS encoder/decoder circuits, ..."
>
> 73, Drew KO4MA
>
> _______________________________________________
> 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: 19
Date: Mon, 1 Jun 2009 17:41:30 -0500
From: "Howard Kowall" <hkowall@xxxx.xx>
Subject: [amsat-bb] Re: true duplex radios
To: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>,
<clintbrad4d@xxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <003701c9e30a$1b8503d0$6701a8c0@xxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=response
Yes but
To use the rig as a cross band repeater is a different story.
To input on VHF and retransmit on UHF is crossband repeat
Using the rig as a repeater.
I have an HT that is full duplex but is unable to crossband
repeat(rebroadcast on another band)
Am I correct in my statements
I hope so
Howard
VE4ISP
----- Original Message -----
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
To: "Howard Kowall" <hkowall@xxxx.xx>; <clintbrad4d@xxxxxxxxx.xxx>;
<amsat-bb@xxxxx.xxx>
Sent: Monday, June 01, 2009 4:06 PM
Subject: Re: [amsat-bb] Re: true duplex radios
>> That's correct Clint
>> And also being full duplex with ability to hear the sat downlink doesn't
>> mean it has the ability to crossband repeat also
>> Howard
>> VE4ISP
>>
>
> Again, incorrect. Think about it for a second. In order for a radio to
> receive a signal on one band and simultaneously repeat it on another (the
> meaning of cross band repeat), it has to be capable of full duplex
> operation. I challenge both of you to find an example that will cross band
> repeat but isn't full duplex.
>
> I think maybe you are confusing cross band repeat with cross band split
> capable.
>
> 73, Drew KO4MA
>
------------------------------
_______________________________________________
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 4, Issue 253
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