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CX2SA > SATDIG 09.02.10 13:07l 796 Lines 26189 Bytes #999 (0) @ WW
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Today's Topics:
1. HO68 Pass (Edward Cole)
2. Re: Identify AO-51 Payload (Mark L. Hammond)
3. Re: Identify AO-51 Payload (Mark L. Hammond)
4. Looking for 440 preamp (Sebastian)
5. FS: TAPR EVM (Bob DeVarney W1ICW)
6. Re: New Lindy's QRV (David Ek)
7. Re: HO68 Pass (Edward Cole)
8. Re: Identify AO-51 Payload (Andrew Glasbrenner)
9. Re: Identify AO-51 Payload (Clint Bradford)
10. Re: New Lindy's QRV (Clint Bradford)
11. Re: New Lindy's QRV (Bruce Robertson)
12. Re: New Lindy's QRV (Joel Black)
13. Re: New Lindy's QRV (David Ek)
14. Re: New Lindy's QRV (Andrew Glasbrenner)
15. Re: New Lindy's QRV (Clint Bradford)
16. Re: New Lindy's QRV (Clint Bradford)
17. ND9M Road Trip Update #6 (claryco@xxx.xxxx
18. Re: New Lindy's QRV (Edward Cole)
19. Re: New Lindy's QRV (Clint Bradford)
20. Re: Tracking - End-stop Problem (Clive Wallis)
----------------------------------------------------------------------
Message: 1
Date: Mon, 08 Feb 2010 11:38:57 -0900
From: Edward Cole <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] HO68 Pass
To: <amsat-bb@xxxxx.xxx>
Message-ID: <201002082038.o18KcwEW016285@xxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
I copied two stations on SSB at 435.733 for the second half of pass
#732, 10:30-10:50 utc. They did not pass call signs while I listened.
I hadn't reprogrammed he FT-847 for SSB so my uplink was on the wrong
freq. but Rx signals were "arm-chair" until elevation < 10 deg. Not
too bad for omni-directional antennas. I looked up the freq. info
after the pass and discovered why I didn't hear my self (uplinking at
145.825). I now have a separate satellite memory setup for the SSB
freq. of HO68 (435.740Rx/145.950Tx).
The next pass is for 0020-0105, Feb. 9. My window will be
0052-0109utc when HO-38 is mainly over arctic Canada and no footprint
for lower-48. It is a ascending pass so I will have about ten min of
coverage (0055-0105). Look for me on SSB.
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
500-KHz/CW, 144-MHz EME, 1296-MHz EME
DUBUS Magazine USA Rep dubususa@xxxxxxx.xxx
======================================
------------------------------
Message: 2
Date: Mon, 8 Feb 2010 15:48:59 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] Re: Identify AO-51 Payload
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID:
<5d8cecfe1002081248p6427d696h27293cd6a4404ce1@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
UNISAT-3 perhaps?
http://www.spacequest.com/success_stories.php
http://www.n2yo.com/browse/?y=2004&m=6
73,
Mark N8MH
On Mon, Feb 8, 2010 at 2:53 PM, Clint Bradford <clintbradford@xxx.xxx> wrote:
> In that famous photo of the entire payload of satellites that included
AO-51 (where AO-51 is at about at the 6:30 position - with that largee
Italian engineering bird to its left), there's another satellite at about
02:30 that looks exactly like AO-51 (size and visible panels are alike).
>
> Whose satellite is that?
>
> Clint Bradford, K6LCS
> 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
>
--
Mark L. Hammond [N8MH]
------------------------------
Message: 3
Date: Mon, 8 Feb 2010 15:53:11 -0500
From: "Mark L. Hammond" <marklhammond@xxxxx.xxx>
Subject: [amsat-bb] Re: Identify AO-51 Payload
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID:
<5d8cecfe1002081253l3b96a94fk9f62a8ecfe609aa3@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Okay, maybe NOT UNISAT-3!
http://www.spacequest.com/image/echoandunisat3.jpg
Mark
On Mon, Feb 8, 2010 at 3:48 PM, Mark L. Hammond <marklhammond@xxxxx.xxx>
wrote:
> UNISAT-3 perhaps?
>
> http://www.spacequest.com/success_stories.php
>
> http://www.n2yo.com/browse/?y=2004&m=6
>
> 73,
>
> Mark N8MH
>
> On Mon, Feb 8, 2010 at 2:53 PM, Clint Bradford <clintbradford@xxx.xxx>
wrote:
>> In that famous photo of the entire payload of satellites that included
AO-51 (where AO-51 is at about at the 6:30 position - with that largee
Italian engineering bird to its left), there's another satellite at about
02:30 that looks exactly like AO-51 (size and visible panels are alike).
>>
>> Whose satellite is that?
>>
>> Clint Bradford, K6LCS
>> 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
>>
>
>
>
> --
> Mark L. Hammond [N8MH]
>
--
Mark L. Hammond [N8MH]
------------------------------
Message: 4
Date: Mon, 8 Feb 2010 18:38:36 -0500
From: Sebastian <w4as@xxxxxxxxx.xxx>
Subject: [amsat-bb] Looking for 440 preamp
To: AMSAT BB <AMSAT-BB@xxxxx.xxx>
Message-ID: <5DF2BAA7-E27F-45DE-BE7B-ED0BDCD092D9@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I'm looking for a used but good 440 preamp, one that can handle at least 50
watts or so.
Please reply off list with make, model, etc.
73 de W4AS
------------------------------
Message: 5
Date: Mon, 08 Feb 2010 19:47:23 -0500
From: Bob DeVarney W1ICW <we1u@xxxxxxxxxxx.xxx>
Subject: [amsat-bb] FS: TAPR EVM
To: amsat-bb@xxxxx.xxx
Message-ID: <4B70B09B.5090602@xxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
For sale, TAPR EVM DSP-based modem, complete and assembled, with all
documentation and cables, plus a cdrom with all pertinent software.
In excellent condition, was in regular use until my interests changed.
Asking $300.00 plus shipping and insurance.
Please contact me off-list if interested.
73, Bob W1ICW
we1u@xxxxxx.xxxxxxxxxxx.xxx ( remove the nospam )
------------------------------
Message: 6
Date: Mon, 08 Feb 2010 17:26:11 -0700
From: David Ek <dave@xxxxxxxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: amsat-bb@xxxxx.xxx
Message-ID: <4B70ABA3.9090908@xxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Question for anyone out there: I just built the parasitic Lindy from the
Feb 2010 QST. What kind of performance (on receive) should I expect from
it during, say, an AO-51 pass (max EL 83 deg)? I had my Kenwood TH-F6a
HT connected directly to it (only a few feet of RG-8X coax to the
antenna) with no preamp, and I only had good copy for a moment here and
there. Just wondering if I need a preamp or if I need to be suspicious
of my construction.
tnx & 73,
Dave NK0E
-----------------
Edward Cole wrote:
I forgot to add that these are patterned after Tony, AA2TX, designs
(UHF version is in Feb. 2010 QST).
My variation was to use pvc sched-40 plastic pipe (white).
The preamp is one of the older DEMI designs that uses a mgf-1302
GasFet with about 0.7 dBNF. I see about one s-unit of noise when I
turn it on. There is 4-feet of RG-58 to the UHF Lindy and 60-feet to
the FT-847 from the preamp. The VHF Lindy has no preamp and is fed
with 60-feet of RG-213.
The VHF Lindy brings up repeaters 70-miles away with 50w, and the UHF
Lindy hears repeaters that far away. So actually can make a nice
general purpose antenna.
73, Ed
------------------------------
Message: 7
Date: Mon, 08 Feb 2010 16:10:13 -0900
From: Edward Cole <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: HO68 Pass
To: <amsat-bb@xxxxx.xxx>
Message-ID: <201002090110.o191AGNi039662@xxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Too late to work anyone in lower-48 but heard my own signal,
FB. 1850-1935 pass later on Feb. 9th (9am here) we will try
again. Transponder shut down just as Northern Japan got AOS.
73, ED - KL7UW
At 11:38 AM 2/8/2010, Edward Cole wrote:
>I copied two stations on SSB at 435.733 for the second half of pass
>#732, 10:30-10:50 utc. They did not pass call signs while I listened.
>
>I hadn't reprogrammed he FT-847 for SSB so my uplink was on the wrong
>freq. but Rx signals were "arm-chair" until elevation < 10 deg. Not
>too bad for omni-directional antennas. I looked up the freq. info
>after the pass and discovered why I didn't hear my self (uplinking at
>145.825). I now have a separate satellite memory setup for the SSB
>freq. of HO68 (435.740Rx/145.950Tx).
>
>The next pass is for 0020-0105, Feb. 9. My window will be
>0052-0109utc when HO-38 is mainly over arctic Canada and no footprint
>for lower-48. It is a ascending pass so I will have about ten min of
>coverage (0055-0105). Look for me on SSB.
>
>73, Ed - KL7UW, WD2XSH/45
>======================================
> BP40IQ 500 KHz - 10-GHz www.kl7uw.com
>500-KHz/CW, 144-MHz EME, 1296-MHz EME
>DUBUS Magazine USA Rep 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
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
500-KHz/CW, 144-MHz EME, 1296-MHz EME
DUBUS Magazine USA Rep dubususa@xxxxxxx.xxx
======================================
------------------------------
Message: 8
Date: Mon, 08 Feb 2010 20:44:16 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Identify AO-51 Payload
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <4B70BDF0.3040303@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Clint Bradford wrote:
> In that famous photo of the entire payload of satellites that included
AO-51 (where AO-51 is at about at the 6:30 position - with that largee
Italian engineering bird to its left), there's another satellite at about
02:30 that looks exactly like AO-51 (size and visible panels are alike).
>
> Whose satellite is that?
>
> Clint Bradford, K6LCS
> 909-241-7666
> _______________________________________________
>
http://n4hy.smugmug.com/AMSAT/AO-51-ECHO/03-Other-Payloads/2106609_Lqo3z#10884
1932_EDRvL
There is a second one hidden behind the main payload. Those are
Aprizesat-1 and -2, aka Latinsat C and D. They belong to a SpaceQuest
related company, hence the common appearance to AO-51. The tall guy
upfront is Saudisat-2. The hex shaped sat is Unisat-3 that was operating
in the ham bands, but was never opened for general use or telemetry
formats published. It was said to have a V/U repeater capability when
coordinated. The small AO-51 sized satellite with the smaller sized
solar cells is SaudiComsat1 (or 2) and the second one is also hidden
behind the main payload, Demeter.
73, Drew KO4MA
------------------------------
Message: 9
Date: Mon, 08 Feb 2010 17:55:23 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] Re: Identify AO-51 Payload
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <088E3E1D-2A48-4B33-A1AF-C7529293C531@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
>> ... Those are Aprizesat-1 and -2, aka Latinsat C and D. They belong to a
SpaceQuest related company, hence the common appearance to AO-51 ...
THANK YOU, Drew! I will update my presentations ... (grin)
Clint, K6LCS
http://www.work-sat.com
------------------------------
Message: 10
Date: Mon, 08 Feb 2010 18:13:27 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <A5B4D493-F225-4C5C-87F7-7785FC02BC9B@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
I read that article, and when I got to the last of it and he mentioned that
he was using a pre-amp for working the FM birds, I wondered out loud: "Why???"
We're working '27, '50, and '51 with HTs and meager antenna improvements.
Better yet, build a tape measure Yagi - you can realize great gain with
about six bucks of parts. Note that I haven't mentioned, "Buy a pre-amp"
anywhere. I was considering building one of those antennas mentioned in QST
last month - until I read that he was using a pre-amp.
I'll just stick with what works for me ... home-brew or commercial Yagis ...
a log periodic every now and then ... and no pre-amp anywhere.
Clint, K6LCS
http://www.work-sat.com
------------------------------
Message: 11
Date: Mon, 8 Feb 2010 22:42:52 -0400
From: Bruce Robertson <ve9qrp@xxxxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: David Ek <dave@xxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<49657a761002081842q3cece4f5s58d4bef0201b9c98@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Being omnidirectional, this antenna offers no gain, so preamps are, in
my opinion, absolutely essential (at least on 70cm). Moreover, you
need to use one that has a proven low noise factor. For practical
purposes , this means SSBUSA or ARR models.
By way of contrast, note the reception of AO-51 in the second half of
this videohttp://www.youtube.com/watch?v=XgNcCGXeRyw It's not great,
but its better than you describe, and I'm doing it indoors, with a
silly wire dipole made out of #12 copper wire. However, it's directly
connected to a preamp, and that makes all the difference.
Similarly, all the 70cm work in my videos is currently conducted with
a 1/4 wave vertical connected directly to an N-connector, up about 20'
in the air, followed by 10' feet of LMR400 and a good low-noise
preamp. The reason I'm building the lindy is to even out the pattern
compared to the vertical, which, of course, has deep nulls overhead
and elsewhere in its elevation pattern. Despite that, HO-68's beacon
is audible Q-5 from horizon to horizon for me even with the 1/4 wave
vertical.
While a preamp represents a considerable amount of money, the good
news is that the improvement from a preamp applies to any sort of
antenna you might use or build, at least those to which it is
convenient to connect a preamp.
73, Bruce
VE9QRP
On Mon, Feb 8, 2010 at 8:26 PM, David Ek <dave@xxxxxxxx.xxx> wrote:
> Question for anyone out there: I just built the parasitic Lindy from the
> Feb 2010 QST. What kind of performance (on receive) should I expect from
> it during, say, an AO-51 pass (max EL 83 deg)? I had my Kenwood TH-F6a
> HT connected directly to it (only a few feet of RG-8X coax to the
> antenna) with no preamp, and I only had good copy for a moment here and
> there. Just wondering if I need a preamp or if I need to be suspicious
> of my construction.
>
> tnx & 73,
>
> Dave NK0E
>
> -----------------
>
> Edward Cole wrote:
> I forgot to add that these are patterned after Tony, AA2TX, designs
> (UHF version is in Feb. 2010 QST).
> My variation was to use pvc sched-40 plastic pipe (white).
>
> The preamp is one of the older DEMI designs that uses a mgf-1302
> GasFet with about 0.7 dBNF. ?I see about one s-unit of noise when I
> turn it on. ?There is 4-feet of RG-58 to the UHF Lindy and 60-feet to
> the FT-847 from the preamp. ?The VHF Lindy has no preamp and is fed
> with 60-feet of RG-213.
>
> The VHF Lindy brings up repeaters 70-miles away with 50w, and the UHF
> Lindy hears repeaters that far away. ?So actually can make a nice
> general purpose antenna.
>
> 73, Ed
> _______________________________________________
> 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
>
--
http://ve9qrp.blogspot.com
------------------------------
Message: 12
Date: Mon, 8 Feb 2010 20:43:41 -0600
From: Joel Black <jbblack68@xxxxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID:
<73583d7a1002081843t5b7e09feo22bc205f7e416193@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Good freaking grief! Are you kidding me? AMSAT-BB is why I have more
"crow's feet."
It's -his- money. The last paragraph actually states that he was making SSB
and FM contacts. Does it -matter- if he uses a preamp on FM, SSB, or
freaking two cans and a string?
Joel, W4JBB
On Mon, Feb 8, 2010 at 8:13 PM, Clint Bradford <clintbradford@xxx.xxx>wrote:
> I read that article, and when I got to the last of it and he mentioned that
> he was using a pre-amp for working the FM birds, I wondered out loud:
> "Why???"
>
> We're working '27, '50, and '51 with HTs and meager antenna improvements.
> Better yet, build a tape measure Yagi - you can realize great gain with
> about six bucks of parts. Note that I haven't mentioned, "Buy a pre-amp"
> anywhere. I was considering building one of those antennas mentioned in QST
> last month - until I read that he was using a pre-amp.
>
> I'll just stick with what works for me ... home-brew or commercial Yagis
> ... a log periodic every now and then ... and no pre-amp anywhere.
>
> 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
>
--
Joel Black
jbblack(at)charter.net
------------------------------
Message: 13
Date: Mon, 08 Feb 2010 19:49:04 -0700
From: David Ek <dave@xxxxxxxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: amsat-bb@xxxxx.xxx
Message-ID: <4B70CD20.8060803@xxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Well, each to their own, obviously. I've worked the birds using the
Arrow antenna and an HT, and that works okay, but I secretly dream about
working them from the shack instead of sitting in the back yard, and big
pointable antennas are a no-no in my neighborhood. I can get away with
something more discrete, like the Lindy.
73, Dave NK0E
------------------
Clint wrote:
I read that article, and when I got to the last of it and he mentioned
that he was using a pre-amp for working the FM birds, I wondered out
loud: "Why???"
We're working '27, '50, and '51 with HTs and meager antenna
improvements. Better yet, build a tape measure Yagi - you can realize
great gain with about six bucks of parts. Note that I haven't mentioned,
"Buy a pre-amp" anywhere. I was considering building one of those
antennas mentioned in QST last month - until I read that he was using a
pre-amp.
I'll just stick with what works for me ... home-brew or commercial Yagis
... a log periodic every now and then ... and no pre-amp anywhere.
Clint, K6LCS
------------------------------
Message: 14
Date: Mon, 08 Feb 2010 22:28:43 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <4B70D66B.1020602@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Clint Bradford wrote:
> "Why???"
>
>
A few passes standing in the chest deep snow while 20 below and I think
you'd start to see the appeal of an omni with a preamp.
73, Drew KO4MA
------------------------------
Message: 15
Date: Mon, 08 Feb 2010 19:39:11 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <114FE9FF-AADD-4355-B724-D4CF4AEC3F91@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
>> ... chest deep snow while 20 below ...
I have read about "snow." And saw a picture of it once.
I was born and raised here in Southern California, where, when it reaches,
oh, about about 58 F degrees, we start dying.
Clint
------------------------------
Message: 16
Date: Mon, 08 Feb 2010 20:45:11 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <A71A7135-707A-4DCA-9603-D80AF5523D15@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
>> ... Does it -matter- if he uses a preamp on FM, SSB, or freaking two cans
and a string?
Absolutely not. It has just been my "mantra" the past four years advising
folks that you do not need 100 Watts of TX power, expensive Yagis on the
roof, and a rotator under computer control to get into working the FM
satellites.
Now, then, if I lived in Drew's neighborhood, all that equipment sounds
pretty appealing ... working the birds while adding fire to the fireplace
with a hot toddy (or three) at hand.
Clint, K6LCS
------------------------------
Message: 17
Date: Tue, 09 Feb 2010 01:35:31 -0500
From: claryco@xxx.xxx
Subject: [amsat-bb] ND9M Road Trip Update #6
To: amsat-bb@xxxxx.xxx
Message-ID: <8CC7769364B5081-2D9C-3E1F@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
The snowfall we received in southern Colorado last night wasn't as bad as
what was predicted; we had about 4 inches overall instead of 10.
Assuming southeastern New Mexico is in good "snow shape" tomorrow, we should
be able to get to the DM84 / DM85 line for the AO27 pass which rises at
09/1937Z. From there, we'll head a bit southeast and be in DM74 for the next
AO27 pass at 09/2116Z.
Finally, AO51 should find us on the DM73 / DM83 line when it comes up at
09/2336Z.
Wednesday, 10 Feb, will be a short grid day for us as we'll pull into
Carlsbad, but I'll be on the DM72 / DM82 line at least for the AO27 pass at
10/2047Z; not sure about the AO51 passes later that afternoon.
We expect to be in Carlsbad until Friday morning.
73,
Jim, ND9M / VQ9JC
Santa Rosa, NM / DM74
------------------------------
Message: 18
Date: Mon, 08 Feb 2010 22:42:47 -0900
From: Edward Cole <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: <amsat-bb@xxxxx.xxx>
Message-ID: <201002090742.o197gmR0087149@xxxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 05:13 PM 2/8/2010, Clint Bradford wrote:
>I read that article, and when I got to the last of it and he
>mentioned that he was using a pre-amp for working the FM birds, I
>wondered out loud: "Why???"
>
>We're working '27, '50, and '51 with HTs and meager antenna
>improvements. Better yet, build a tape measure Yagi - you can
>realize great gain with about six bucks of parts. Note that I
>haven't mentioned, "Buy a pre-amp" anywhere. I was considering
>building one of those antennas mentioned in QST last month - until I
>read that he was using a pre-amp.
>
>I'll just stick with what works for me ... home-brew or commercial
>Yagis ... a log periodic every now and then ... and no pre-amp anywhere.
>
>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
I am the original author of the referenced e-mail.
I hope you noted that I am in Alaska, where it is not exactly nice wx
in winter. I have a complete super tracking system of yagis that I
used on AO-10/AO-40, but I thought ii would be nice to have a simple
non-tracking antenna system for the "easy sats". The preamp makes
the UHF Lindy work nearly equal with the high-price stuff...and much simpler.
The good news is that the Lindys work. They are not hard to
make. They are as cheap as an Arrow. I believe it is equal or
better than the M2 eggbeaters (and $400 cheaper).
I paid $30 for my used DEMI preamp. It is equal to SSB or ARR
preamps (new costs in between these two).
...and I do not have to stand outside at 10F to work the satellites ;-)
And I would guess that you note in my signature line that I do some
other stuff in ham radio.
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
500-KHz/CW, 144-MHz EME, 1296-MHz EME
DUBUS Magazine USA Rep dubususa@xxxxxxx.xxx
======================================
------------------------------
Message: 19
Date: Tue, 09 Feb 2010 01:18:10 -0800
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] Re: New Lindy's QRV
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <2604285E-2197-4FE9-A6A5-711E1A16E43E@xxx.xxx>
Content-Type: text/plain; charset=us-ascii
>> ... (Alaska ... a little inclement weather) ... The preamp makes the UHF
Lindy work nearly equal with the high-price stuff...and much simpler ...
I obviously didn't take your inclement weather conditions into account!
A little spoiled down here in Southern California when it comes to weather
... (grin)
Clint, K6LCS
------------------------------
Message: 20
Date: Tue, 09 Feb 2010 10:46:35 +0000
From: Clive Wallis <clive@xxxxx.xx.xx>
Subject: [amsat-bb] Re: Tracking - End-stop Problem
To: amsat <amsat-bb@xxxxx.xxx>
Message-ID: <4B713D0B.5070905@xxxxx.xx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi,
Many thanks to everyone who replied to my request for information.
I thought that SatPC32 might offer a solution with the rotator set up
for 450/90 operation.
AFAIK my tracking program (SatExplorer) offers an option to flip the
elevation, to avoid traversing round the end-stop, but I didn't really
want to do that.
I will contact the author of SatExplorer to see whether 90/450 operation
is possible.
Sorry Erich about the bounce problem, should be better now :-)
73 Clive G3CWV
Hitchin, North Hertfordshire, UK
------------------------------
_______________________________________________
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 73
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