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CX2SA > SATDIG 27.12.08 00:04l 778 Lines 25100 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Earthrise - add (Edward Cole)
2. Re: AO-51 Telemetry (Jeff Yanko)
3. Gulf Alpha Antenna Model No.2M 70CM Sat. (Dual Band Antenna)
(Guy Brauning)
4. An Off-Topic Question (D. Mynatt)
5. KE5GDB -> EM20 (North of Houston) through Tuesday (Andrew Koenig)
6. XE1AO from DK99 through Friday night (North America)
(Patrick STODDARD (WD9EWK/VA7EWK))
7. Apollo 8 Press Kit (Clint Bradford)
8. Re: Apollo 8 Press Kit (w7lrd@xxxxxxx.xxxx
9. Re: Apollo 8 Press Kit (Clint Bradford)
10. Re: Apollo 8 Press Kit (Edward Cole)
11. Re: Apollo 8 Press Kit (Tim Tapio)
12. Re: Apollo 8 Press Kit (Peter Guelzow)
13. Re: Apollo 8 Press Kit (Edward Cole)
14. NEW AMATEUR FM SATELLITE FROM KACST! (nader omer)
15. Re: Gulf Alpha Antenna Model No.2M 70CM Sat. (Dual
BandAntenna) (Gary "Joe" Mayfield)
16. Telemetry. (John Hackett)
----------------------------------------------------------------------
Message: 1
Date: Thu, 25 Dec 2008 11:30:36 -0900
From: Edward Cole <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Earthrise - add
To: Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx>
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Message-ID: <200812252030.mBPKUbv8086213@xxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 04:25 AM 12/25/2008, Joe Fitzgerald wrote:
>Rocky Jones wrote:
> > I think that the first black and white photo of Earthrise over
> the Moon...was from one of the Lunar Orbiters... I think 5...
> >
> >
> >
>There was a nice story recently about a recent restoration of that photo
>...http://www.collectspace.com/news/news-111408a.html
>
>-Joe KM1P
>_______________________________________________
>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
I am amazed at times how my own past resurfaces.
One of my duties at Goldstone from 1974-1976 was to manage the tape
backup for data received from spacecraft like the Voyagers and
Pioneers that flew by Jupiter, Saturn (and the outer planets after my
time), and other missions. It was sort of an unwanted task handed
off on me. But I took it serious and devised a record system to keep
track of when they were recorded and so they would be retained for
the required time period. These were backups as the prime data had
been transmitted to the mission scientist. These were held a minimum
of 30-days in case of any bad data in the originals. I started
stacking them in an unused office but in time they ended up in the
climate-controlled "basement" of the 64m DSS-14 Control
Building. They ended up being kept much longer than 30-days. I'm
guessing these reel tapes were made by the same recorder as mentioned
in the article. Isn't it fantastic that the old Lunar tapes were
recoverable! 2009 will be my 30th anniversary of leaving Jet
Propulsion Lab to move to Alaska...tempis fugit!
The, then new, Hydrogen Maser Master Clock was installed in this same
room. It was used for precise timing of VLBI experiments, which
previously required calibration by the famous "flying clock" or the
x-band Moon Bounce timing system (ask Dick, K6HIJ). Not only
Goldstone, but Madrid, and Canberra stations required to be on the
same accurate time (ask Tom Clark about that).
As the New Year approaches we reflect on the past. Thanks to those
who recently found those articles.
Merry Christmas and Happy New year!
73, Ed Cole - KL7UW (& Janet)
------------------------------
Message: 2
Date: Thu, 25 Dec 2008 14:09:07 -0800
From: "Jeff Yanko" <wb3jfs@xxx.xxx>
Subject: [amsat-bb] Re: AO-51 Telemetry
To: "Peter" <roi@xxxxxxxxx.xxx>, <AMSAT-BB@xxxxx.xxx>
Message-ID: <2A37E01D45F346AAB038CB3B4A12BD33@xxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
I use the built in TNC of the TH-D7(g) HT feeding the audio into the laptop
running both TerraTerm and TLMecho.
Jeff WB3JFS
----- Original Message -----
From: "Peter" <roi@xxxxxxxxx.xxx>
To: <AMSAT-BB@xxxxx.xxx>
Sent: Thursday, December 25, 2008 7:15 AM
Subject: [amsat-bb] AO-51 Telemetry
> Merry Christmas and Happy Holidays to all,
>
> I will be using a PK-96 to decode AO-51 TLM using TLM echo, what terminal
> program are you using and what are the TNC commands that you use, thank
> you.
>
> 73,
> Pete, WB2OQQ
>
> _______________________________________________
> 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: Thu, 25 Dec 2008 20:44:13 -0500
From: "Guy Brauning" <guyjeanbraun@xxxxxxx.xxx>
Subject: [amsat-bb] Gulf Alpha Antenna Model No.2M 70CM Sat. (Dual
Band Antenna)
To: <amsat-bb@xxxxx.xxx>
Message-ID: <000501c966fb$74a67420$5df35c60$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hello and thanks for reading this. I am looking for some "Owner Experience"
before making a decision about buying one of the Gulf Alpha dual band
satellite antennas. I know the antenna is a compromise compared to a pair
of circular polarized yagis; however, I am looking for a less expensive
alternative for a basic 2M/70CM base set-up. My only experience with the
satellites has been with handheld/portable radios (FT-60R and FT-817ND) and
the Arrow and ELK handheld antennas. My guess is that the Gulf Alpha dual
band satellite antenna (installed above obstructions and with an AZ rotator
/ low loss feed lines / and a 70CM mast mounted pre-amp) would be comparable
if not considerably better than the handheld Arrow/ELK for FM work on AO-51
and SO-51 (for passes at or below 40 degrees max elevation) but I would also
like to work some of the linear sats on SSB/CW and I don't know if the
antenna would meet that need. (I already have a 2Meter all mode in addition
to the FT-817 as well as a refurbished CD-44 rotor.) If this antenna would
support reliable CW/SSB contacts on the linear satellites, it would be a
good fit. I would install the antenna at approximately 25 feet in height,
leave it fixed at 15 degs elevation using the supplied mast mount, and
rotate it with a CD-44 rotator. I plan on using LMR-600 coax for the 432
run and LMR-400U for the 2 meter run (Total length for each run about 30 -
40 feet). I would also use an AR2 mast mounted 432 preamp and Polyphasers
at the shack entry with appropriate jumpers (best loss specs vs. needed
flexibility) from the Polyphasers to the radios. Radios would be a Yaesu
FT-290R MKII (2 MTR All-Mode) and a Yaesu FT-817ND for 432. I'm looking for
someone with experience using the Gulf Alpha to let me know their opinion of
how well the antenna might play given my anticipated installation specifics.
Thanks for your help!
Guy
N3SCR
------------------------------
Message: 4
Date: Thu, 25 Dec 2008 19:58:33 -0700
From: "D. Mynatt" <dave@xxxxxx.xxx>
Subject: [amsat-bb] An Off-Topic Question
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Message-ID: <D1599910D05D480F978181B13B5C8F39@xxxxxx>
Content-Type: text/plain; charset="Windows-1252"
I asked sometime ago in the group, but sometimes things change and stuff comes
along so I thought I'd ask again and see if any one had a mini-computer like a
PdP-11 with tapes drives and the large external disk drives in the floor
boxes.
As I mentioned before, just trying to find a unit to show students the older
technologies as well as how to program with Cobol/Fortran.
Using PCs is the best way to do a lot of stuff, but a mini-mainframe is the
visually appealing idea.
Just thought I'd ask in case things changed out there!
Dave // DM78qd // KA0SWT
------------------------------
Message: 5
Date: Thu, 25 Dec 2008 21:56:32 -0600
From: "Andrew Koenig" <andrewkoenig@xxxxxxxxxx.xxx>
Subject: [amsat-bb] KE5GDB -> EM20 (North of Houston) through Tuesday
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Message-ID:
<2f52b89b0812251956w7731d99dp48d866884900cf6b@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hello all-
I will be active in EM20 Friday through Tuesday.
Every year my Boy Scout troop attends a winter camp program at Camp Strake,
and this year I plan to bring my new Arrow Antenna along with an FT-60.
Although I will do my best to make it on the birds, there will be times when
I'll be eating the (horrible..) camp food or doing other activities during
the pass times.
Anyway, hope to hear y'all on the birds, and hopefully I can do a few
demonstrations for my troop!
73 de KE5GDB (Life Scout)
--
Andrew Koenig
------------------------------
Message: 6
Date: Thu, 25 Dec 2008 20:50:27 -0800 (PST)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] XE1AO from DK99 through Friday night (North
America)
To: amsat-bb@xxxxx.xxx
Message-ID: <113967.92036.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
I had a chance to talk with Omar XE1AO after AO-51 and SO-50 passes
around 0035-0105 UTC tonight. Omar was very happy with the chance
to work several USA and Mexican stations on AO-51, and once again
had an easy time on SO-50 with a few QSOs. Omar does not plan on
being on AO-51 Friday morning from DK99, as it is too cold for him
to go outside (below freezing). He is planning to work AO-51 and
SO-50 Friday evening before heading home, if you still want a chance
to get DK99 in your log.
Merry Christmas and 73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 7
Date: Thu, 25 Dec 2008 22:12:32 -0800
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Apollo 8 Press Kit
To: amsat-bb@xxxxx.xxx
Message-ID: <0C9B4E1D-AAD1-4813-B722-7E8B578D0F27@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
OK - Sorry 'bout this ... I promise this will be my last nostalgic
post of the season ...
The original press kit for Apollo 8:
http://gizmodo.com/5118084/the-apollo-8-original-press-kit
Clint Bradford, K6LCS / KAF3359
909-241-7666
------------------------------
Message: 8
Date: Fri, 26 Dec 2008 06:27:22 +0000
From: w7lrd@xxxxxxx.xxx
Subject: [amsat-bb] Re: Apollo 8 Press Kit
To: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>, amsat-bb@xxxxx.xxx
Message-ID:
<122620080627.13160.4954794A0003AD240000336822120207840B9D04C999@xxxxxxx
.xxx>
Content-Type: text/plain
Clint-
Don't apologize, this is cool stuff. Or we can always reminisce about past
HEO's.
73 Bob W7LRD
Seattle
--
"if this were easy, everyone would be doing it"
-------------- Original message --------------
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
> OK - Sorry 'bout this ... I promise this will be my last nostalgic
> post of the season ...
>
> The original press kit for Apollo 8:
>
> http://gizmodo.com/5118084/the-apollo-8-original-press-kit
>
>
> Clint Bradford, K6LCS / KAF3359
> 909-241-7666
>
>
>
> _______________________________________________
> 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: 9
Date: Thu, 25 Dec 2008 22:32:31 -0800
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Apollo 8 Press Kit
To: w7lrd@xxxxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Message-ID: <DBF22351-AB32-4E86-A8FB-89F1DB756544@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
> Don't apologize, this is cool stuff ...
I am just afraid that many might already have researched or received
some of this stuff ... and I promise not to submit citations after the
consumption of more than two Pina Coladas ... (grin)
Clint
------------------------------
Message: 10
Date: Thu, 25 Dec 2008 22:41:41 -0900
From: Edward Cole <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Apollo 8 Press Kit
To: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>, amsat-bb@xxxxx.xxx
Message-ID: <200812260741.mBQ7ffqO012217@xxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 09:12 PM 12/25/2008, Clint Bradford wrote:
>OK - Sorry 'bout this ... I promise this will be my last nostalgic
>post of the season ...
>
>The original press kit for Apollo 8:
>
>http://gizmodo.com/5118084/the-apollo-8-original-press-kit
>
>
>Clint Bradford, K6LCS / KAF3359
>909-241-7666
Clint,
Don't apologize. For those of us who were around then, its great to
remember. For those too young you should check this out.
I arrived in California on Dec. 2, 1968 to begin my career as an
engineer after graduation from college in the mid-west.
We will enjoy remembrances of the 40th anniversary of Apollo-11 in July!
There is a little personal history on my webpage:
http://www.kl7uw.com/kn8mwa.htm
http://www.kl7uw.com/mw3456.htm
***********************************************************
73, Ed - KL7UW BP40iq, 6m - 3cm
144-EME: FT-847, mgf-1801, 4x-xp20, 185w
1296-EME: DEMI-Xvtr, 0.30 dBNF, 4.9m dish, 60W (not QRV yet)
http://www.kl7uw.com AK VHF-Up Group
NA Rep. for DUBUS: dubususa@xxxxxxx.xxx
***********************************************************
------------------------------
Message: 11
Date: Fri, 26 Dec 2008 06:13:37 -0500
From: "Tim Tapio" <tim@xxxxxxxx.xxx>
Subject: [amsat-bb] Re: Apollo 8 Press Kit
To: "'Edward Cole'" <kl7uw@xxxxxxxxx.xxx>, "'Clint Bradford'"
<clintbrad4d@xxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <001601c9674b$006e3340$014a99c0$@xxx>
Content-Type: text/plain; charset="us-ascii"
Wow....despite what my son says, there are indeed people older than
I.....but not by much!
All the best!
Tim T. K4SHF
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Edward Cole
Sent: Friday, December 26, 2008 2:42 AM
To: Clint Bradford; amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Apollo 8 Press Kit
At 09:12 PM 12/25/2008, Clint Bradford wrote:
>OK - Sorry 'bout this ... I promise this will be my last nostalgic post
>of the season ...
>
>The original press kit for Apollo 8:
>
>http://gizmodo.com/5118084/the-apollo-8-original-press-kit
>
>
>Clint Bradford, K6LCS / KAF3359
>909-241-7666
Clint,
Don't apologize. For those of us who were around then, its great to
remember. For those too young you should check this out.
I arrived in California on Dec. 2, 1968 to begin my career as an engineer
after graduation from college in the mid-west.
We will enjoy remembrances of the 40th anniversary of Apollo-11 in July!
There is a little personal history on my webpage:
http://www.kl7uw.com/kn8mwa.htm
http://www.kl7uw.com/mw3456.htm
***********************************************************
73, Ed - KL7UW BP40iq, 6m - 3cm
144-EME: FT-847, mgf-1801, 4x-xp20, 185w
1296-EME: DEMI-Xvtr, 0.30 dBNF, 4.9m dish, 60W (not QRV yet)
http://www.kl7uw.com AK VHF-Up Group
NA Rep. for DUBUS: dubususa@xxxxxxx.xxx
***********************************************************
_______________________________________________
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: 12
Date: Fri, 26 Dec 2008 12:58:53 +0100
From: Peter Guelzow <peter.guelzow@xxxxxx.xx>
Subject: [amsat-bb] Re: Apollo 8 Press Kit
To: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4954C6FD.2090108@xxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Clint and everyone,
look here for more:
http://history.nasa.gov/alsj/main.html
You find all the presskits from Apollo7 to 15 here:
http://history.nasa.gov/alsj/main.html
But don't miss the videos and "Communications" stuff....
Imagine if amateurs at that time would have had the same S-Band
receiving capabilities like today, thanks to AO-13 and AO-40...
Would be nice listening to the moon :-)
Thanks and best wishes for 2009!!
73s Peter DB2OS
Clint Bradford wrote:
> OK - Sorry 'bout this ... I promise this will be my last nostalgic
> post of the season ...
>
> The original press kit for Apollo 8:
>
> http://gizmodo.com/5118084/the-apollo-8-original-press-kit
>
>
> Clint Bradford, K6LCS / KAF3359
> 909-241-7666
>
>
>
> _______________________________________________
> 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: 13
Date: Fri, 26 Dec 2008 03:14:25 -0900
From: Edward Cole <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Apollo 8 Press Kit
To: Peter Guelzow <peter.guelzow@xxxxxx.xx>, Clint Bradford
<clintbrad4d@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <200812261214.mBQCEP4E046981@xxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Peter,
My good freind and mentor, Dick - K6HIJ, set up a 3m comm dish in his
yard and used a diode mixer driven with a HP freq. synthesizer to
recover the carrier of one of the Apollos in orbit around the Moon in
the early 1970's. You could hear the change in frequency due to
Doppler and LOS when the Apollo went around the back side of the Moon
and AOS about 20-minutes later.
We were both members of the sbms in southern california and Dick held
a record terrestrial shot on 3300-MHz from around the late 60's or
early 70's. Reading of that accomplishment in QST lead me to the sbms in
1970.
Of course we had access to a lot of mw gear at work.
73, Ed - KL7UW
At 02:58 AM 12/26/2008, Peter Guelzow wrote:
>Hi Clint and everyone,
>
>look here for more:
>
> http://history.nasa.gov/alsj/main.html
>
>You find all the presskits from Apollo7 to 15 here:
>http://history.nasa.gov/alsj/main.html
>
>But don't miss the videos and "Communications" stuff....
>
>Imagine if amateurs at that time would have had the same S-Band
>receiving capabilities like today, thanks to AO-13 and AO-40...
>Would be nice listening to the moon :-)
>
>
>Thanks and best wishes for 2009!!
>73s Peter DB2OS
>
>
>
>
>
>Clint Bradford wrote:
> > OK - Sorry 'bout this ... I promise this will be my last nostalgic
> > post of the season ...
> >
> > The original press kit for Apollo 8:
> >
> > http://gizmodo.com/5118084/the-apollo-8-original-press-kit
> >
> >
> > Clint Bradford, K6LCS / KAF3359
> > 909-241-7666
> >
> >
> >
> > _______________________________________________
> > 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: 14
Date: Fri, 26 Dec 2008 05:22:34 -0800 (PST)
From: nader omer <st2nh@xxxxx.xxx>
Subject: [amsat-bb] NEW AMATEUR FM SATELLITE FROM KACST!
To: amsat bb bb <amsat-bb@xxxxx.xxx>
Message-ID: <690093.59868.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
HI all
?
During the last summer I meet .Mark Kanawat (N4TPY) from SpaceQuest during a
visit to KSA with Dr.Abd Alaziz Alsagir from King Abdulaziz City for Science
and Technology (KACST) at shack of Firas HZ1FS at Riyadh city. We had a nice
friendly meeting
?Dr.Alsagir mentions and discussed the possibility of Adding a FM amateur
satellite repeater to
The future planed satellite from KACST
?
I hope we will have another ?new Amateur? FM Satellite soon from KACST
?
photo of the meeting at my homepage link
?
http://www.st2nh.com/news
?
?
73
Nader ,st2nh
www.st2nh.com
?
------------------------------
Message: 15
Date: Fri, 26 Dec 2008 07:28:21 -0600
From: "Gary \"Joe\" Mayfield" <gary_mayfield@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Gulf Alpha Antenna Model No.2M 70CM Sat. (Dual
BandAntenna)
To: "'Guy Brauning'" <guyjeanbraun@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <COL0-DAV5268ED28ACCD2EED9916C28AEB0@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Guy,
I have the previous version of the Gulf Alpha dual band. We use it at
field day every year and it performs well. Your idea to add the pre-amp is
wise as it is a little short for some of the UHF downlink signals.
You may also want to plan for some classic mode J de-sense issues which
aren't really a factor of the antenna as much as a reality of listening on
the third harmonic of your transmit signal.
On the whole it has been a great antenna, and that sucker is built like
a battleship. I wish he had a larger line of antennas as he builds a VERY
solid product. I believe Gulf Alpha is a one man shop so there may be some
lead time as well, but definitely worth the wait!
73,
Joe kk0sd
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Guy Brauning
Sent: Thursday, December 25, 2008 7:44 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Gulf Alpha Antenna Model No.2M 70CM Sat. (Dual
BandAntenna)
Hello and thanks for reading this. I am looking for some "Owner Experience"
before making a decision about buying one of the Gulf Alpha dual band
satellite antennas. I know the antenna is a compromise compared to a pair
of circular polarized yagis; however, I am looking for a less expensive
alternative for a basic 2M/70CM base set-up. My only experience with the
satellites has been with handheld/portable radios (FT-60R and FT-817ND) and
the Arrow and ELK handheld antennas. My guess is that the Gulf Alpha dual
band satellite antenna (installed above obstructions and with an AZ rotator
/ low loss feed lines / and a 70CM mast mounted pre-amp) would be comparable
if not considerably better than the handheld Arrow/ELK for FM work on AO-51
and SO-51 (for passes at or below 40 degrees max elevation) but I would also
like to work some of the linear sats on SSB/CW and I don't know if the
antenna would meet that need. (I already have a 2Meter all mode in addition
to the FT-817 as well as a refurbished CD-44 rotor.) If this antenna would
support reliable CW/SSB contacts on the linear satellites, it would be a
good fit. I would install the antenna at approximately 25 feet in height,
leave it fixed at 15 degs elevation using the supplied mast mount, and
rotate it with a CD-44 rotator. I plan on using LMR-600 coax for the 432
run and LMR-400U for the 2 meter run (Total length for each run about 30 -
40 feet). I would also use an AR2 mast mounted 432 preamp and Polyphasers
at the shack entry with appropriate jumpers (best loss specs vs. needed
flexibility) from the Polyphasers to the radios. Radios would be a Yaesu
FT-290R MKII (2 MTR All-Mode) and a Yaesu FT-817ND for 432. I'm looking for
someone with experience using the Gulf Alpha to let me know their opinion of
how well the antenna might play given my anticipated installation specifics.
Thanks for your help!
Guy
N3SCR
_______________________________________________
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: 16
Date: Fri, 26 Dec 2008 13:19:49 +0100
From: John Hackett <archie.hackett@xxxxxxx.xxx>
Subject: [amsat-bb] Telemetry.
To: <amsat-bb@xxxxx.xxx>
Cc: eu-amsat@xxxxxxxxxxx.xxx
Message-ID: <BLU149-W2635BD68A04D0C5F4CA13F91EB0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Dear Amsat friends,
While having many years experience of analogue
satellite operating, I'm the first to admit that I'm a *TOTAL* ignoramous
regarding 'digitalis horriblis' ... so please don't 'smirk' at my question.
Is the telemetry from AO-51 transmitted continuously?, or only at certain
specified times? ... on 435.150? ...
I 'could' probably find the answer to these questions by 'Googling' ... but
isn't the Amsat-bb here for this precise purpose?.
Answers on a $100 note please, to <la2qaa@xxxxx.xxx> ... failing the
C note, an e-mail *WILL* be just as appreciated.
In anticipation of your answers - thank you.
Wishing you all a happy and prosperous 2009.
73 John. <la2qaa@xxxxx.xxx>
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End of AMSAT-BB Digest, Vol 3, Issue 669
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