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CX2SA > SATDIG 30.06.09 01:23l 672 Lines 20619 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Labjack U12 & Piggy back (Alan P. Biddle)
2. Call for Papers--2009 ARRL/TAPR Digital Communications
Conference (Mark Thompson)
3. Need advice : Eggbeater antenna, preamp, coax
(Jean-Fran?ois M?nard)
4. W1AW/# on AO-27... (Patrick STODDARD (WD9EWK/VA7EWK))
5. Re: Need advice : Eggbeater antenna, preamp, coax (Jim Jerzycke)
6. Re: Need advice : Eggbeater antenna, preamp, coax
(Andrew Glasbrenner)
7. Re: Need advice : Eggbeater antenna, preamp, coax
(Bruce Robertson)
8. Re: Need advice : Eggbeater antenna, preamp, coax
(Michael Hatzakis)
9. Re: Need advice : Eggbeater antenna, preamp, coax (Sebastian)
10. Re: Need advice : Eggbeater antenna, preamp, coax
(Jean-Fran?ois M?nard)
11. Re: Need advice : Eggbeater antenna, preamp, coax
(Jean-Fran?ois M?nard)
12. Re: AO-27 Question (George Henry)
13. Sea Launch (Trevor .)
----------------------------------------------------------------------
Message: 1
Date: Sun, 28 Jun 2009 14:40:44 -0500
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: Labjack U12 & Piggy back
To: "'Mani VU2WMY'" <wmy@xxxx.xxx.xx>, <amsat-bb@xxxxx.xxx>
Message-ID: <2D19DAB9CA5B45D4AD38F3A3009EEED4@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Mani,
SATPC32 works perfectly with that combination. I have been using it for
several years.
Alan
WA4SCA
------------------------------
Message: 2
Date: Sun, 28 Jun 2009 13:05:25 -0700 (PDT)
From: Mark Thompson <wb9qzb_groups@xxxxx.xxx>
Subject: [amsat-bb] Call for Papers--2009 ARRL/TAPR Digital
Communications Conference
To: soft_radio@xxxxxxxxxxx.xxxx hspacket@xxxxxxxxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Message-ID: <674713.66834.qm@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
?
Call for Papers--2009 ARRL/TAPR Digital Communications Conference
? ? Posted by: "Ford, Steve,? WB8IMY" sford@xxxx.xxx wb8imy
? ? Date: Fri Jun 26, 2009 6:41 am ((PDT))
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: 3
Date: Sun, 28 Jun 2009 16:16:15 -0400
From: Jean-Fran?ois M?nard <va2ss@xx.xxx>
Subject: [amsat-bb] Need advice : Eggbeater antenna, preamp, coax
To: AMSAT Mailing list <amsat-bb@xxxxx.xxx>
Message-ID: <4A47CF8F.8030609@xx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi,
I would like to know if there is much difference using a preamp for
satellite receiving using a M2 Eggbeater antenna ?
And also, is there much difference between a heliax 0.5" and a RG-8 on
a 50 feet cable run between the antenna and the radio ?
I would really like to optimize my receiving quality but I also want to
know where to put all my effort first.
I'm new and I cannot invest much money the first year.
Thank to all for your advice.
73
---
Jean-Fran?ois M?nard
VA2SS
------------------------------
Message: 4
Date: Sun, 28 Jun 2009 14:11:20 -0700 (PDT)
From: "Patrick STODDARD \(WD9EWK/VA7EWK\)" <amsat-bb@xxxxxx.xxx>
Subject: [amsat-bb] W1AW/# on AO-27...
To: amsat-bb@xxxxx.xxx
Message-ID: <214387.43348.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi!
Mark WA8SME asked me to post this on his behalf...
Anyone who worked Mark during any of the ARRL Teachers Institutes
over the past few weeks, and in the coming weeks, on AO-27 using
any of the following calls:
W1AW
W1AW/4
W1AW/5
W1AW/6
W1AW/8
can get a QSL card for those contacts by sending your QSL request
directly to WA8SME at his QRZ.com mailing address.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 5
Date: Sun, 28 Jun 2009 15:20:54 -0700 (PDT)
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Need advice : Eggbeater antenna, preamp, coax
To: AMSAT Mailing list <amsat-bb@xxxxx.xxx>, Jean-Fran?ois M?nard
<va2ss@xx.xxx>
Message-ID: <398471.15510.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
There's a TREMENDOUS difference with the preamp, mounted at the antenna. You
will hear the satellites earlier, and stronger, with the preamp.
Good coax is also good to have, but if you're on a budget, buy the preamp
first. I tried many different things, but the preamp made the most
improvement.
73, Jim? KQ6EA
--- On Sun, 6/28/09, Jean-Fran?ois M?nard <va2ss@xx.xxx> wrote:
From: Jean-Fran?ois M?nard <va2ss@xx.xxx>
Subject: [amsat-bb] Need advice : Eggbeater antenna, preamp, coax
To: "AMSAT Mailing list" <amsat-bb@xxxxx.xxx>
Date: Sunday, June 28, 2009, 1:16 PM
Hi,
I would like to know if there is much difference using a preamp for
satellite receiving using a M2 Eggbeater antenna ?
And also, is there much difference between a heliax 0.5"? and a RG-8 on
a 50 feet cable run between the antenna and the radio ?
I would really like to optimize my receiving quality but I also want to
know where to put all my effort first.
I'm new and I cannot invest much money the first year.
Thank to all for your advice.
73
---
Jean-Fran?ois M?nard
VA2SS
_______________________________________________
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: Sun, 28 Jun 2009 18:49:29 -0400
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Need advice : Eggbeater antenna, preamp, coax
To: Jean-Fran?ois M?nard <va2ss@xx.xxx>, "AMSAT Mailing list"
<amsat-bb@xxxxx.xxx>
Message-ID: <492E5FBACB3A46BDAA42277DCF6F8797@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
>I would like to know if there is much difference using a preamp for
>satellite receiving using a M2 Eggbeater antenna ?
I wouldn't even consider using an eggbeater without a mast mounted preamp.
>And also, is there much difference between a heliax 0.5" and a RG-8 on
>a 50 feet cable run between the antenna and the radio ?
Yes, with the amount dependent on the grade of RG-8 and it's age, among
other things. LMR-400 is a good cable that may be less expensive than the
heliax.
>I would really like to optimize my receiving quality but I also want to
>know where to put all my effort first.
I'd start with the preamp first.
73, Drew KO4MA
------------------------------
Message: 7
Date: Sun, 28 Jun 2009 22:06:37 -0300
From: Bruce Robertson <ve9qrp@xxxxx.xxx>
Subject: [amsat-bb] Re: Need advice : Eggbeater antenna, preamp, coax
To: Jean-Fran?ois M?nard <va2ss@xx.xxx>
Cc: AMSAT Mailing list <amsat-bb@xxxxx.xxx>
Message-ID:
<49657a760906281806n167bd00dh1520f8975ed4aaf7@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On Sun, Jun 28, 2009 at 7:20 PM, Jim Jerzycke<kq6ea@xxxxxxx.xxx> wrote:
> There's a TREMENDOUS difference with the preamp, mounted at the antenna. You
will hear the satellites earlier, and stronger, with the preamp.
> Good coax is also good to have, but if you're on a budget, buy the preamp
first. I tried many different things, but the preamp made the most
improvement.
> 73, Jim? KQ6EA
Jean-Fran?ois --
Welcome to the fraternity of satellite experimenters. I think you'll
really enjoy the experience of improving your satellite station. If
you have not yet bought your egg-beater antennas, you can save a
considerable amount of money to begin by using simple, homebrew
verticals with the preamps. If you just solder the appropriate length
of stiff wire to a male connector, you can have a working satellite
antenna for only about $5! The point here is that the preamp is
absolutely critical, and with LEO satellites a small antenna will
receive quite a bit if you can improve your commercial radio's
sensitivity.
Of course, you will want to upgrade from the homebrew verticals, but
they do provide you with a cheap and reliable basis from which to
judge future improvements.
Also, don't forget that if you have a radio that doesn't provide power
for your preamps, you might want to buy bias tees for your preamps.
Finally, be sure to purchase good, low noise, preamps. The SSB USA
models and the Advanced Receiver Research ones are both well-regarded
on this list.
73, Bruce
VE9QRP
> --- On Sun, 6/28/09, Jean-Fran?ois M?nard <va2ss@xx.xxx> wrote:
>
> From: Jean-Fran?ois M?nard <va2ss@xx.xxx>
> Subject: [amsat-bb] ?Need advice : Eggbeater antenna, preamp, coax
> To: "AMSAT Mailing list" <amsat-bb@xxxxx.xxx>
> Date: Sunday, June 28, 2009, 1:16 PM
>
> Hi,
>
> I would like to know if there is much difference using a preamp for
> satellite receiving using a M2 Eggbeater antenna ?
>
> And also, is there much difference between a heliax 0.5"? and a RG-8 on
> a 50 feet cable run between the antenna and the radio ?
>
> I would really like to optimize my receiving quality but I also want to
> know where to put all my effort first.
>
> I'm new and I cannot invest much money the first year.
>
> Thank to all for your advice.
>
> 73
>
> ---
> Jean-Fran?ois M?nard
> VA2SS
>
> _______________________________________________
------------------------------
Message: 8
Date: Sun, 28 Jun 2009 18:59:34 -0700
From: "Michael Hatzakis" <mikehatzakis@xxxxx.xxx>
Subject: [amsat-bb] Re: Need advice : Eggbeater antenna, preamp, coax
To: " 'Jean-Fran?ois M?nard' " <va2ss@xx.xxx>, "'AMSAT Mailing list'"
<amsat-bb@xxxxx.xxx>
Message-ID:
<200906290200.n5T20jsV003247@xxxxxx.xxx.xxxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
AMP:
My vote, SSB pre-amps, outstanding, although agreeably expensive, but well
worth the cost hands down; my MFJ pre-amp didn?t hold up as it felt quite
cheap. The other advantage of the SSB is that the power requirement is very
low, which means it is compatible with ICOM's amps and will be powered
internally from the radio.
http://www.ssbusa.com/gaasfet.html
COAX:
Completely agree with using LMR, it is very much worth the marginal
additional cost for 100 feet (two runs).
http://www.timesmicrowave.com/content/pdf/lmr/22-25.pdf
Michael K3MH
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Jean-Fran?ois M?nard
Sent: Sunday, June 28, 2009 1:16 PM
To: AMSAT Mailing list
Subject: [amsat-bb] Need advice : Eggbeater antenna, preamp, coax
Hi,
I would like to know if there is much difference using a preamp for
satellite receiving using a M2 Eggbeater antenna ?
And also, is there much difference between a heliax 0.5" and a RG-8 on
a 50 feet cable run between the antenna and the radio ?
I would really like to optimize my receiving quality but I also want to
know where to put all my effort first.
I'm new and I cannot invest much money the first year.
Thank to all for your advice.
73
---
Jean-Fran?ois M?nard
VA2SS
_______________________________________________
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: Sun, 28 Jun 2009 22:12:06 -0400
From: Sebastian <w4as@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Need advice : Eggbeater antenna, preamp, coax
To: AMSAT BB <AMSAT-BB@xxxxx.xxx>
Message-ID: <44CCFF64-7D20-4409-9C33-582A6638000B@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes
On Jun 28, 2009, at 4:16 PM, Jean-Fran?ois M?nard wrote:
> Hi,
>
> I would like to know if there is much difference using a preamp for
> satellite receiving using a M2 Eggbeater antenna ?
I'll add a thought here that I haven't seen anyone reply about. As
everyone mentioned, definitely go with a preamp - but think for the
future. How much transmitter output power do you have? If you have
relatively low power, say 5 watts, you can get an inexpensive preamp.
However, if you plan to use higher power in the future, perhaps for
meteor scatter; that low power preamp may no longer be useful.
> And also, is there much difference between a heliax 0.5" and a RG-8
> on
> a 50 feet cable run between the antenna and the radio ?
Again, you've received several responses, but one thing hasn't been
mentioned. What is your output power? If you have an HT with a
couple of watts, that RG-8 may 'eat up' a lot of your power,
especially if you are going to transmit on 440 Mhz. Without knowing
how much power you have, and which birds you plan to use, it's
difficult to give you a good answer.
> I would really like to optimize my receiving quality but I also want
> to
> know where to put all my effort first.
"you can't work 'em if you can't hear them"; also don't forget that
you need to hear yourself FIRST. Work on hearing your downlink if
possible before you start to call other stations. If you can't hear
yourself, then post about it so we can help you out. I think it would
be helpful if you told us which type(s) of rig(s) you will be using.
> I'm new and I cannot invest much money the first year.
When you find a fellow ham who has all the money that's necessary to
build a perfect station, please let me know!
> Thank to all for your advice.
>
> 73
>
> ---
> Jean-Fran?ois M?nard
> VA2SS
73 de W4AS
Sebastian
------------------------------
Message: 10
Date: Sun, 28 Jun 2009 22:35:54 -0400
From: Jean-Fran?ois M?nard <va2ss@xx.xxx>
Subject: [amsat-bb] Re: Need advice : Eggbeater antenna, preamp, coax
To: AMSAT Mailing list <amsat-bb@xxxxx.xxx>
Message-ID: <4A48288A.8090407@xx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Wow... many many answers !!
Well, everybody seems to be agree that preamp are a "must", and the
first thing to add in my setup.
I bought, at a great price, 2 "second hand" and near perfect eggbeater
antenna from a ham here in province of Quebec who would like to upgrade
to a more serious setup.
Ok now, I just ordered 2 preamps from Advanced Research... VHF and UHF.
I will put them in an wheater proof enclosure near my eggbeater
antennas..... the closer I can.... in an PVC enclosure... because I
bought standard one.
I received today from a friend of mine, a brand new 50 meters 1/2"
heliax coil.... I will be able to change my 2 old coax runs with this.
And finally, I will use my 2 FT-817 with SatPC32.... seems to work
perfectly at this moment... the 2 rigs are controlled simultaniously RX
& TX.... a great piece of software !!
I hope I will be able to do a step further soon.... to have a contact !!!
73
J-F VA2SS
Jean-Fran?ois M?nard a ?crit :
> Hi,
>
> I would like to know if there is much difference using a preamp for
> satellite receiving using a M2 Eggbeater antenna ?
>
> And also, is there much difference between a heliax 0.5" and a RG-8
> on a 50 feet cable run between the antenna and the radio ?
>
> I would really like to optimize my receiving quality but I also want
> to know where to put all my effort first.
>
> I'm new and I cannot invest much money the first year.
>
> Thank to all for your advice.
>
> 73
>
> ---
> Jean-Fran?ois M?nard
> VA2SS
>
>
------------------------------
Message: 11
Date: Sun, 28 Jun 2009 22:45:25 -0400
From: Jean-Fran?ois M?nard <va2ss@xx.xxx>
Subject: [amsat-bb] Re: Need advice : Eggbeater antenna, preamp, coax
To: AMSAT Mailing list <amsat-bb@xxxxx.xxx>
Message-ID: <4A482AC5.5000804@xx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
/Hi Sebastian,
I planning to work at 5W for now. I will use my 2 FT-817.... one for RX and
the other one for TX.... both controlled by SatPC32.
I bought 2 premamps RF switch at 25W maximum from Advanced Research.
J-F VA2SS
From/: Sebastian <w4as@xxxxxxxxxxxxx <mailto:w4as@xxxxxx.xxxxxx>>/
Date/: Sun, 28 Jun 2009 22:12:06 -0400
I'll add a thought here that I haven't seen anyone reply about. As
everyone mentioned, definitely go with a preamp - but think for the
future. How much transmitter output power do you have? If you have
relatively low power, say 5 watts, you can get an inexpensive preamp.
However, if you plan to use higher power in the future, perhaps for
meteor scatter; that low power preamp may no longer be useful.
Again, you've received several responses, but one thing hasn't been
mentioned. What is your output power? If you have an HT with a
couple of watts, that RG-8 may 'eat up' a lot of your power,
especially if you are going to transmit on 440 Mhz. Without knowing
how much power you have, and which birds you plan to use, it's
difficult to give you a good answer.
"you can't work 'em if you can't hear them"; also don't forget that
you need to hear yourself FIRST. Work on hearing your downlink if
possible before you start to call other stations. If you can't hear
yourself, then post about it so we can help you out. I think it would
be helpful if you told us which type(s) of rig(s) you will be using.
When you find a fellow ham who has all the money that's necessary to
build a perfect station, please let me know!
73 de W4AS
Sebastian
------------------------------
Message: 12
Date: Sun, 28 Jun 2009 23:10:26 -0500
From: "George Henry" <ka3hsw@xxx.xxx>
Subject: [amsat-bb] Re: AO-27 Question
To: "amsat bb" <amsat-bb@xxxxx.xxx>
Message-ID: <9586B0848B794C549AE802EB69BCC0CE@xxxxxxx>
Content-Type: text/plain; format=flowed; charset="Windows-1252";
reply-type=original
Thanks for plugging my son's program, Greg! I've been amazed at how
accurate it is.... mode changes typically occur within seconds of predicted
times, and, as the AO-27 site notes, the onboard clock can be up to 10
seconds off.
73,
George, KA3HSW
----- Original Message -----
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
To: <kq6ea@xxxxxxx.xxx>; <amsat-bb@xxxxx.xxx>
Sent: Sunday, June 28, 2009 1:02 PM
Subject: [amsat-bb] Re: AO-27 Question
Hi Jim,
Interesting... That was probably the pass I was trying to work AO-27 too,
but I didn't have any success at all. All I got back was hash, with others
audible below it. I think my uplink was interfering my downlink locally,
though it went away after the pass. Gotta work on that.
But, in answer to your question, the satellite has a scheduled sequence that
it goes through. There's a program to predict when the different phases are
going to kick in, downloadable from
http://sites.google.com/site/ao27satellitescheduler/ and it shows exactly
what you and I experienced during the pass. I suspect it appeared like the
satellite turned on with conversations already in progress because they
jumped the gun a bit on the uplink, or weren't aware of the timer and were
transmitting without being able to hear anything. The digital parts of the
pass are telemetry, and you can decode and contribute what you hear to the
archive. The main page is http://www.ao27.org.
Enjoy,
Greg KO6TH
------------------------------
Message: 13
Date: Mon, 29 Jun 2009 18:12:51 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
Subject: [amsat-bb] Sea Launch
To: amsat-bb@xxxxx.xxx
Message-ID: <123609.95522.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Sadly Sea Launch is bankrupt so one less launch company.
http://www.space.com/news/090629-busmon-sealaunch-bankruptcy.html
73 Trevor M5AKA
------------------------------
_______________________________________________
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 301
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