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CX2SA > SATDIG 29.12.10 21:05l 344 Lines 10901 Bytes #999 (0) @ WW
BID : AMSATBB5515
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Subj: AMSAT-BB-digest V5 515
Path: IZ3LSV<IK2XDE<ON4HU<CX2ACB<LU7DBL<CX2SA
Sent: 101229/2003Z @:CX2SA.LAV.URY.SA #:42186 [Minas] FBB7.00e $:AMSATBB5515
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. New UT FASTRAC TLEs available (Andrew.MacAllister@xxxxxxx.xxxx
2. Re: Is it possible to work LEO sats (FM or SSB) with antennas
in attic? (Bill Dzurilla)
3. AO-51 update 28 Dec 2010 2315utc (Mark L. Hammond)
4. Re: Is it possible to work LEO sats (FM or SSB) (Mike Ryan)
5. Vertically mounted beam question (John Geiger)
6. straight Key night on AO-51, Hows it work? (Tom Schuessler)
7. Re: straight Key night on AO-51, Hows it work?
(Andrew Glasbrenner)
8. KD8KSN/8 EN90/EM99 Cards Mailed (Zachary Beougher)
9. Re: Fundraising ... (Dee)
----------------------------------------------------------------------
Message: 1
Date: Tue, 28 Dec 2010 20:14:32 +0000
From: <Andrew.MacAllister@xxxxxxx.xxx>
Subject: [amsat-bb] New UT FASTRAC TLEs available
To: <amsat-bb@xxxxx.xxx>
Message-ID:
<B51E3308C76B514E97BF378288E10699016CE82F74@xxxxxxxxxxxxxxx.xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Just updated today for FAST1 and FAST2 (not yet separated):
http://fastrac.ae.utexas.edu/for_radio_operators/users/phpBB3/predictedorbit.p
hp
73 de Andy W5ACM
------------------------------
Message: 2
Date: Tue, 28 Dec 2010 12:48:41 -0800 (PST)
From: Bill Dzurilla <billdz.geo@xxxxx.xxx>
Subject: [amsat-bb] Re: Is it possible to work LEO sats (FM or SSB)
with antennas in attic?
To: amsat-bb@xxxxx.xxx
Message-ID: <736648.40508.qm@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Dave,
It depends to an extent on the composition of your roof. I did not get good
results from the attic, but others have. Give it a try if you have no other
choice.
A couple of people have mentioned fixed elevation at 30 degrees. If you go
this route, I would recommend just 15-20 degrees of elevation, not 30.
I use an Elk with 20 degrees fixed elevation and a small TV azimuth rotor,
mounted outside. My HOA also disallows outside antennas, but the Elk is so
tiny (2' long) no one has complained (knock on wood). I've worked Europe on
AO-7 and HO-68.
Good luck and 73, Bill NZ5N
------------------------------
Message: 3
Date: Tue, 28 Dec 2010 18:26:09 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] AO-51 update 28 Dec 2010 2315utc
To: amsat-bb@xxxxx.xxx
Cc: ao51-modes@xxxxx.xxx
Message-ID: <onSB1f00856cfur05nSBPd@xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hi All,
This evening we shut down the digital transmitter TXA (435.150). This is
due to less sun (we are on the edge of eclipse). I suspect we'll be keeping
TXA off for the most part, except to collect telemetry.
We'll do our best to keep 435.300 running as much as possible.
73,
Mark L. Hammond [N8MH]
------------------------------
Message: 4
Date: Tue, 28 Dec 2010 18:46:49 -0500
From: "Mike Ryan" <mryan301@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Is it possible to work LEO sats (FM or SSB)
To: <amsat-bb@xxxxx.xxx>
Message-ID: <894F306CE2954FD8ACAE81D4015ABF1C@xxxxxxxxx>
Content-Type: text/plain; charset="utf-8"
It can be done but there will be some loss. Generally the higher the
frequency, the bigger impact of barriers like roofs and walls. So 70 cm
downlink will suffer noticeably.
I?ve done it and make the following recommendations.
Get the most gain you can. While omnis are possible, you may lose patience
with limited passes as I did when I started with turnstiles and moxon
turnstiles. Get or build a yagi or other directional antenna and turn with
a cheap tv rotor (I prefer old alliance u100s as they are inexpensive used
and quite rugged). The biggest one you can afford or squeeze into that attic
space available. Because you don?t need to weatherize, consider just rigging
up an Arrow or Elk (I did it with the Elk) at fixed elevation.
Get a preamp. Its night and day, believe me, when you have one with less
than ideal antennas. I use the ARR 25 watt switched units. Youll really
benefit from the preamp on 70 cm downlink. If you do VO52 or A07 mode B, a
preamp on 2M is helpful, but I?ve found these sats quite usable without one
from the attic. While this might just be my QTH, I found a lot more QRM on
2M than 70 cm and the preamp just tends to make the QRM louder.
Keep the antenna away, best you can, from any possible sources of coupling
(metal), including house wiring, ductwork, flashing, and even foil backed
insulation batts. You cant avoid everything up there, but just try your
best. The effect, exhibited often in the form of directional SWR issues and
RFI is a combination of how big the metal is and how far away. In my case,
I had to move things around due to nearby heating ducts.
Good luck!
Mike WB1AAT
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Message: 5
Date: Wed, 29 Dec 2010 03:43:00 -0000
From: "John Geiger" <aa5jg@xxxxxxx.xxx>
Subject: [amsat-bb] Vertically mounted beam question
To: "Amsat-Bb@xxxxx. Org" <amsat-bb@xxxxx.xxx>
Message-ID: <951C5A1A392F44F9B62D474C7B4158B5@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
What sort of radiation pattern (mainly elevation lobes) would a dualband
beam, like the Cushcraft A270-6S or Elk Antenna, have when mounted for
vertical polarization? Does it have useful elevation lobes for most LEO
satellite work? I used to have a Cushcraft A270-10S mounted horizontally
and whichever band was on the top of the boom had some very high lobes with
nothing on the lower parts of the passes.
73s John AA5JG
------------------------------
Message: 6
Date: Tue, 28 Dec 2010 22:08:44 -0600
From: "Tom Schuessler" <tjschuessler@xxxxxxx.xxx>
Subject: [amsat-bb] straight Key night on AO-51, Hows it work?
To: <amsat-bb@xxxxx.xxx>
Message-ID: <002a01cba70e$158e2910$40aa7b30$@xxx>
Content-Type: text/plain; charset=US-ASCII
Greetings,
The AO-51 status page says;
December 30 (late UTC)
CW/FM Repeater, V/U For Straight Key Night
Uplink: 145.880 MHz CW
Downlink: 435.300 MHz CW over FM
The question was asked last week or so on the BB about what the uplink mode
really is supposed to be, A1? Will it receive like a narrow transponder and
output CW over FM with different frequencies of audio tone as the incoming
signals populate the passband. I do not recall ever seeing an answer to the
question.
Obviously there should be an avoidance of the use of the normal FM by ground
stations to allow the straight key folks a fighting chance.
73 de N5HYP
Tom Schuessler
2713 Lake Gardens Drive
Irving, Texas 75060
972-986-7456
214-403-1464 (Cell)
n5hyp@xxxx.xxx
------------------------------
Message: 7
Date: Wed, 29 Dec 2010 06:50:24 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: straight Key night on AO-51, Hows it work?
To: Tom Schuessler <tjschuessler@xxxxxxx.xxx>
Cc: "<amsat-bb@xxxxx.xxx>" <amsat-bb@xxxxx.xxx>
Message-ID: <05925DE8-B200-4251-86BF-796DD43C02C6@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
We use the ssb setting on the SQRX receiver and send the audio down on FM.
Use regular old CW on the uplink.
73, Drew KO4MA
Sent from my iPhone
On Dec 28, 2010, at 11:08 PM, "Tom Schuessler" <tjschuessler@xxxxxxx.xxx>
wrote:
> Greetings,
>
> The AO-51 status page says;
>
> December 30 (late UTC)
> CW/FM Repeater, V/U For Straight Key Night
> Uplink: 145.880 MHz CW
> Downlink: 435.300 MHz CW over FM
>
> The question was asked last week or so on the BB about what the uplink mode
> really is supposed to be, A1? Will it receive like a narrow transponder and
> output CW over FM with different frequencies of audio tone as the incoming
> signals populate the passband. I do not recall ever seeing an answer to the
> question.
>
> Obviously there should be an avoidance of the use of the normal FM by ground
> stations to allow the straight key folks a fighting chance.
>
> 73 de N5HYP
>
> Tom Schuessler
> 2713 Lake Gardens Drive
> Irving, Texas 75060
> 972-986-7456
> 214-403-1464 (Cell)
> n5hyp@xxxx.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: 8
Date: Wed, 29 Dec 2010 10:24:51 -0500
From: "Zachary Beougher" <zack.kd8ksn@xxxxxxx.xxx>
Subject: [amsat-bb] KD8KSN/8 EN90/EM99 Cards Mailed
To: <amsat-bb@xxxxx.xxx>
Message-ID: <SNT111-DS9F730E6A702F5BB195746B3020@xxx.xxx>
Content-Type: text/plain; charset="utf-8"
Hi Everybody,
The KD8KSN/8 EN90/EM99 cards went out in the mail this morning with the
exception of AB0XE, KJ4CTZ and VE3JW. I ran out of labels and envelopes, so
give an extra day or two on those three.
I have heard from several stations that didn?t get to work me at this
boundary that they need one or both of these grids. The plan in to return
to this grid boundary in late winter/early spring before corn is planted and
working the boundary become difficult. I will definitely try to go on a
weekend this time.
73, and Happy New Year!
Zack
KD8KSN
------------------------------
Message: 9
Date: Wed, 29 Dec 2010 10:40:26 -0500
From: Dee <morsesat@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Fundraising ...
To: "'Clint Bradford'" <clintbradford@xxx.xxx>, "'AMSAT BB'"
<amsat-bb@xxxxx.xxx>
Message-ID: <1DFA48BE4CBE49749E115BD5BCBF36EC@xxxxxxxx>
Content-Type: text/plain; charset=us-ascii
Good ideas...
73,
Dee, NB2F
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Clint Bradford
Sent: Monday, December 27, 2010 11:48 PM
To: AMSAT BB
Subject: [amsat-bb] Fundraising ...
Well, over in a YahooGroup covering the Yaesu FT-60 handheld radio this
evening -
1. Pat KC2RNN needed a replacement FT-60 wall wart ...
2. Clint K6LCS had one, un-used, sitting 'round ...
3. AMSAT-NA is running a fund drive ...
Put those three ingredients together, and Clint K6LCS is sending Pat a new
wall wart for Pat's donation to AMSAT!
(I feel like I should be on a PBS telethon ... (grin).)
Got some attractive "spare"accessories just taking up room in your shack?
Get rid of 'em - by having the recipient send a couple bucks to AMSAT.
Clint, K6LCS
http://www.work-sat.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 member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 5, Issue 515
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