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CX2SA > SATDIG 28.02.08 19:00l 951 Lines 33527 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. OLPC Sold (Bruce)
2. Re: Radio amateur calling protocol (James Whitfield)
3. Re: Ham Log Grid Square Mapping Software (Bill Dzurilla)
4. Ham Log Grid Mapping Software, on http://ve2zaz.net
(Dr. Jay Garlitz)
5. IEEE Student High Efficiency Power Amplifier Design
Competition (Arthur Feller)
6. Re: A0-51 "easy sat" (Ken Owen)
7. New at the AMSAT Online Store - 2007 Symposium DVD (Bruce)
8. Re: New at the AMSAT Online Store - 2007 Symposium DVD
(Doug Faunt N6TQS +1-510-655-8604)
9. Re: Radio amateur calling protocol (Greg D.)
10. Re: New at the AMSAT Online Store - 2007 Symposium DVD
(Patrick STODDARD (WD9EWK/VA7EWK))
11. FW: [PNWVHFS] Update on MicroHAMS Digital Conference 2008 -
March 22, 2008 (w7lrd(AT)comcast.net)
12. Patch Antenna (Ronald A. Stunden)
13. S-band test gear. (John Hackett)
14. Re: LVB Tracker Questions (Howard Long)
----------------------------------------------------------------------
Message: 1
Date: Wed, 27 Feb 2008 14:29:19 -0600
From: Bruce <kk5do(AT)arrl.net>
Subject: [amsat-bb] OLPC Sold
To: amsat-bb(AT)amsat.org
Message-ID: <47C5C81F.7040301(AT)arrl.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Thanks to everyone that responded to my for sale email. The OLPC is sold
(actually, if I had a stack of them I could have sold them all).
73...bruce
--
Bruce Paige, KK5DO
AMSAT Director Contests and Awards
ARRL Awards Manager (WAS, 5BWAS, VUCC), VE
Houston AMSAT Net - Wed 0100z on SkyScanner Satellite Radio Network on Galaxy-
25 (AT)97? West,
Transponder 23 (12115 Vert), Symbol Rate: 22425, APID: 1794 (DVB Free To Air)
Also streaming MP3 at http://www.amsatnet.com
Latest satellite news on the ARRL Audio News
http://www.arrl.org
------------------------------
Message: 2
Date: Wed, 27 Feb 2008 15:01:09 -0600
From: "James Whitfield" <n5gui(AT)cox.net>
Subject: [amsat-bb] Re: Radio amateur calling protocol
To: <AMSAT-BB(AT)amsat.org>
Message-ID: <00c601c87983$e2b50550$6401a8c0(AT)Sony2G4>
Content-Type: text/plain; charset="iso-8859-1"
I respect the opinions each of you have voiced. With some, I disagree.
It seems to me that the problem is not that there are too many FM satellites,
or perhaps as some have suggested that they exist at all, but rather there are
not enough FM satellites, and the ones that exist have too few channels.
The situation is similar to terrestrial repeaters:
When too many users try to access the limited resource, more repeaters get
built.
When you run out of bandwidth, new repeaters get built on other bands.
Usually accompanied by lots of grumbling about the cost of additional
equipment, but it shifts the load from over-used spectrum to under-used
spectrum. Newcomers adapt, frequently in spite of insults and other forms of
"un-welcome". If a system does not attract enough newcomers activity will
eventually die off, which is fortunate.
When bad operating practice and bad manners get mixed with heavy use, the
control elements slap access limiters on the systems, knowing that if they
don't, regulating agencies will shut them down completely.
If someone doesn't like the way a system is operated, he or she is entitled to
form another group of like minded people to establish and run another system
as they see fit within the same regulatory, financial, and technical
environment. Sometimes they succeed, sometimes they don't.
As far as I am personally concerned, I don't operate satellite. But given the
opportunity to help a someone or some group put on a satellite demonstration
to a Scout activity or a school, I would do so. I have the professional
background to know how aerospace vehicles are made; I understand some of the
physics of launch vehicles, orbital mechanics, and attitude control systems;
and I have an archaic romantic notion that it is possible to have fun while
you are learning something important.
This thread would take a lot of editing before I could use it to encourage
youth.
James
n5gui
------------------------------
Message: 3
Date: Wed, 27 Feb 2008 13:15:12 -0800 (PST)
From: Bill Dzurilla <billdz.geo(AT)yahoo.com>
Subject: [amsat-bb] Re: Ham Log Grid Square Mapping Software
To: amsat-bb(AT)amsat.org
Message-ID: <310435.6682.qm(AT)web51110.mail.re2.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Bert,
Just downloaded your program and uploaded my log.
Seems to work OK, except that worked grids only show
in bold print. I am not seeing the colored-coded by
band boxes around each worked grid, as shown on your
web page. I'm using an IBM Thinkpad T42 with Windows
XP.
Does the program show the total number of grids
worked?
Thanks much for the program,
Bill NZ5N
>
> Hi Everyone,
>
> I've just finished developing WorkedGrids, a ham log
> grid square mapping software. It is a freeware and
> it runs under Windows. The program displays a map
> showing the amateur radio grid squares
> contacted and logged in using a third-party logging
> program. WorkedGrids uses colors to display
> information on a per-band basis. Up to four bands
> can be displayed concurrently on the map. For its
> input, the program reads the plain-text (ASCII) log
> files generated by most logging programs.
>
> This project was initiated because I could not find
> a logging program that provided the level of detail
> and mapping quality that I wanted. The software is
> directed towards the VHF andabove operators who
> collect grid squares for contesting or awardpurpose.
> It is designed to supplement a logging program and
> itreplaces the pen and paper technique.
>
> Please visit http://ve2zaz.net for more details.
> Your input is welcome!
>
> Best Regards,
>
> Bert, VE2ZAZ
>
>
>
>
>
> Be smarter than spam. See how smart SpamGuard
> is at giving junk email the boot with the All-new
> Yahoo! Mail. Click on Options in Mail and switch to
> New Mail today or register for free at
> http://mail.yahoo.ca
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 27 Feb 2008 19:49:28 -0000
> From: "John B. Stephensen" <kd6ozh(AT)comcast.net>
> Subject: [amsat-bb] Re: power restriction in New
> Mexico on 435 MHz
> To: "Rick Mann" <rmann(AT)latencyzero.com>, "Lee
> McLamb"
> <ku4os(AT)cfl.rr.com>
> Cc: amsat-bb(AT)amsat.org
> Message-ID:
> <00a401c87979$dde7aa50$0201a8c0(AT)your6bvpxyztoq>
> Content-Type: text/plain; format=flowed;
> charset="iso-8859-1";
> reply-type=original
>
> Almost all amateur bands above 219 MHz are shared.
> Most often this is with
> the military and their use is usually radiolocation.
> On 70 cm the military
> has uses in specific areas of the country. The 3
> PAVE PAWS missile defense
> RADAR sites also use this band. Along the Pacific
> coast you can also hear
> shipboard RADAR.
>
> 73,
>
> John
> KD6OZH
>
> ----- Original Message -----
> From: "Rick Mann" <rmann(AT)latencyzero.com>
> To: "Lee McLamb" <ku4os(AT)cfl.rr.com>
> Cc: <amsat-bb(AT)amsat.org>
> Sent: Wednesday, February 27, 2008 08:23 UTC
> Subject: [amsat-bb] Re: power restriction in New
> Mexico on 435 MHz
>
>
> >
> > On Feb 26, 2008, at 6:46 PM, Lee McLamb wrote:
> >
> >> 97.313
> >> (f) No station may transmit with a transmitter
> power exceeding 50 W
> >> PEP on the UHF 70 cm band from an area specified
> in footnote US7 to
> >> Sec. 2.106 of part 2, unless expressly authorized
> by the FCC after
> >
> >
> > Huh. I didn't know this. Why?
> >
> > --
> > Rick
> >
> > _______________________________________________
> > Sent via AMSAT-BB(AT)amsat.org. 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(AT)amsat.org. 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 3, Issue 107
> ****************************************
>
______________________________________________________________________________
______
Never miss a thing. Make Yahoo your home page.
http://www.yahoo.com/r/hs
------------------------------
Message: 4
Date: Wed, 27 Feb 2008 18:42:58 -0500
From: "Dr. Jay Garlitz" <drjay(AT)gatordental.com>
Subject: [amsat-bb] Ham Log Grid Mapping Software, on
http://ve2zaz.net
To: <amsat-bb(AT)amsat.org>
Message-ID: <005f01c8799a$7bba98d0$6602a8c0(AT)home>
Content-Type: text/plain; charset="us-ascii"
Thanks to Bert, VE2ZAZ, for posting the link to his Website containing his
Ham Grid Mapping Software on our listserv. I was easily able to download
the software, install it, export my data from my DXkeeper logging program,
and set up the bands description so the program could read the data. Great
result for a first version! Took less than ten minutes to get it
going...Thanks Bert.
Jay, AA4FL, EL89wo
------------------------------
Message: 5
Date: Wed, 27 Feb 2008 21:12:13 -0500
From: Arthur Feller <afeller(AT)ieee.org>
Subject: [amsat-bb] IEEE Student High Efficiency Power Amplifier
Design Competition
To: amsat-bb(AT)amsat.org, amsat-edu(AT)amsat.org
Message-ID: <0JWX002XOFHG5OM5(AT)vms044.mailsrvcs.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
This competition is open to all students and graduate students
registered at an educational establishment. Competitors are required
to design, construct, and measure a high efficiency power amplifier,
at a frequency of their choice above 1 GHz, but less than 20 GHz, and
having an output power level of at least 5 watts, but less than 100 watts.
See: http://www.ims2008.org/publications/PA-POSTER08-RevA.pdf
Go for it!
73, art.....
W4ART Arlington, VA
Life is short. Be swift to love! Make haste to be kind!
- Henri Frederic Amiel, philosopher and writer (1821-1881)
------------------------------
Message: 6
Date: Wed, 27 Feb 2008 22:28:58 -0800
From: "Ken Owen" <n6kth(AT)n6kth.com>
Subject: [amsat-bb] Re: A0-51 "easy sat"
To: <bruninga(AT)usna.edu>, <amsat-bb(AT)amsat.org>
Message-ID: <00ee01c879d3$33a4d540$6601a8c0(AT)CIR2>
Content-Type: text/plain; charset="us-ascii"
Thanks for your opinion, but I really disagree. I often have trouble making
out call signs when people don't use phonetics. Maybe it's my tin ear or
perhaps I need better ear phones, but why not just use phonetics? It does
not take much longer, it helps during marginal conditions and it gets passed
tricky accents. By the way, I wish hams would stick to ITC phonetics,
especially when working DX.
Ken, N6KTH
-----Original Message-----
From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org] On
Behalf Of Robert Bruninga
Sent: Monday, February 25, 2008 1:36 PM
To: amsat-bb(AT)amsat.org
Subject: [amsat-bb] Re: A0-51 "easy sat"
> How about trying to use the more preferred protocol of...
> Callsign phonetically. grid square, op mode
> Like...
> Kilo-Six-Lima-Charlie-Sierra, Delta Mike 13, handheld
On FM, in my opinion, there is no need for phonetics except for
calls with troublesome letters. Most calls can be heard easily
without using up time with phonetics.
Bob
_______________________________________________
Sent via AMSAT-BB(AT)amsat.org. 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: 7
Date: Wed, 27 Feb 2008 22:21:19 -0600
From: Bruce <kk5do(AT)arrl.net>
Subject: [amsat-bb] New at the AMSAT Online Store - 2007 Symposium
DVD
To: amsat-bb(AT)amsat.org
Message-ID: <47C636BF.6080705(AT)arrl.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I just added the following item to the AMSAT online store. It is the
long awaited 2007 AMSAT Symposium DVD. It is under CDROM's.
This is a must for anyone that was not able to attend the 2007 AMSAT
Symposium in Pittsburgh or those that attended who would like the
Symposium on DVD.
This DVD has all of the 2007 papers, PowerPoints and audio of the
presentations. Additional features of this DVD are the Symposium papers
from 2004 and 2005, ISS Columbus module video and much more.
73...bruce
AMSAT Online Store Manager
--
Bruce Paige, KK5DO
AMSAT Director Contests and Awards
ARRL Awards Manager (WAS, 5BWAS, VUCC), VE
Houston AMSAT Net - Wed 0100z on SkyScanner Satellite Radio Network on Galaxy-
25 (AT)97? West,
Transponder 23 (12115 Vert), Symbol Rate: 22425, APID: 1794 (DVB Free To Air)
Also streaming MP3 at http://www.amsatnet.com
Latest satellite news on the ARRL Audio News
http://www.arrl.org
------------------------------
Message: 8
Date: Wed, 27 Feb 2008 23:48:40 -0500 (EST)
From: Doug Faunt N6TQS +1-510-655-8604 <faunt(AT)panix.com>
Subject: [amsat-bb] Re: New at the AMSAT Online Store - 2007 Symposium
DVD
To: kk5do(AT)arrl.net
Cc: amsat-bb(AT)amsat.org
Message-ID: <200802280448.m1S4me807728(AT)panix3.panix.com>
Great. But putting the 2006 and 2007 Journals on it too would have
been good.
73, doug
Date: Wed, 27 Feb 2008 22:21:19 -0600
From: Bruce <kk5do(AT)arrl.net>
I just added the following item to the AMSAT online store. It is the
long awaited 2007 AMSAT Symposium DVD. It is under CDROM's.
This is a must for anyone that was not able to attend the 2007 AMSAT
Symposium in Pittsburgh or those that attended who would like the
Symposium on DVD.
This DVD has all of the 2007 papers, PowerPoints and audio of the
presentations. Additional features of this DVD are the Symposium papers
from 2004 and 2005, ISS Columbus module video and much more.
73...bruce
AMSAT Online Store Manager
------------------------------
Message: 9
Date: Wed, 27 Feb 2008 21:03:39 -0800
From: "Greg D." <ko6th_greg(AT)hotmail.com>
Subject: [amsat-bb] Re: Radio amateur calling protocol
To: "Bato, Andras" <bato(AT)starjan.hu>, <amsat-bb(AT)amsat.org>
Message-ID: <BLU133-W343B711760780C5D0D05A2A91B0(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Hi Andras,
I think there is a difference between the FM and SSB satellites. For FM you
need to be quick because only one person can use it at a time, and you're
trying to sneak in between other people who are also trying to use the
satellite. For SSB (including AO-7) many can use the satellite at the same
time, and in fact you can have two people calling CQ at other ends of the
passband at the same time for an entire pass, not knowing the other is there.
SSB also doesn't have a capture effect, so even while calling CQ you can hear
someone else tuning up on your frequency in preparation to come back to you.
FM and SSB are very different worlds.
FM: I try to slip my call sign in between people. Letters, no phonetics.
SSB: I call "CQ CQ this is ", maybe twice before a pause, but stopping
instantly if I hear someone key up.
Just my style,
Greg KO6TH
----------------------------------------
> From: bato(AT)starjan.hu
> To: amsat-bb(AT)amsat.org
> Date: Wed, 27 Feb 2008 11:22:55 +0000
> Subject: [amsat-bb] Re: Radio amateur calling protocol
>
> Gentlemen,
>
> In case we are rally corresponding about radio amateur calling and QSO
protocol, Dave WB6LLO is quite right writing:
>
> "AO7, is what, 25 years old, none of those problems existed there, and
> still don't today..."
>
> Except for the sad fact that some feels it is compulsory to call like "CQ CQ
CQ CQ AO7 satellite this is EE0LL (15 times) is standing by for any possible
satellite call."
>
> During this time of a long call VO52 flyes across Europe and no QSO will be
made at all!
>
> I was planning to write this list asking everyone to KEEP IT SHORT for the
God's sake !!!
>
> I call like "HA6NN CQ"
>
> That's all. As somewhere someone told those who had not been experienced in
RTTY contests, it is a general habit on that mode!
>
> Than there is no rule to tell QSP-partners even your name every time! Beside
this, some tells everything about his equipment, the wx, etc.
>
> THERE IS NO TIME TO DO THAT ON SATELLITES!
>
> Learn the only sensible radioamateur QSO protocol what OH8MBN Mika or UA9CS
Igor uses -not to mention K3SZH and some other regulars on AO7.
>
>
>> Blame those that encouraged and built AO51...
>
> That was one of the gratest mistake of the history of Amateur Radio.
>
>> Why was it built??
>
> ...that is the question.
>
> gl de ha6nn
> Andras
>
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. 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
_________________________________________________________________
Helping your favorite cause is as easy as instant messaging.?You IM, we give.
http://im.live.com/Messenger/IM/Home/?source=text_hotmail_join
------------------------------
Message: 10
Date: Wed, 27 Feb 2008 22:21:51 -0700
From: "Patrick STODDARD (WD9EWK/VA7EWK)" <amsat-bb(AT)wd9ewk.net>
Subject: [amsat-bb] Re: New at the AMSAT Online Store - 2007 Symposium
DVD
To: amsat-bb(AT)amsat.org
Cc: kk5do(AT)arrl.net
Message-ID:
<2e18ad3e0802272121t9834de3v26034649015a04ad(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
> I just added the following item to the AMSAT online store. It is the
> long awaited 2007 AMSAT Symposium DVD. It is under CDROM's.
>
> This is a must for anyone that was not able to attend the 2007 AMSAT
> Symposium in Pittsburgh or those that attended who would like the
> Symposium on DVD.
>
> This DVD has all of the 2007 papers, PowerPoints and audio of the
> presentations. Additional features of this DVD are the Symposium papers
> from 2004 and 2005, ISS Columbus module video and much more.
What about the 2006 Symposium in San Francisco? I was there, but it
would be nice to get the papers etc. in electronic form - and especially
a video of Bill McArthur's speech. Someone recorded that with a nice
camcorder, but nothing has been said about a DVD from that event.
73!
Patrick WD9EWK/VA7EWK
http://www.wd9ewk.net/
------------------------------
Message: 11
Date: Thu, 28 Feb 2008 05:53:13 +0000
From: w7lrd(AT)comcast.net
Subject: [amsat-bb] FW: [PNWVHFS] Update on MicroHAMS Digital
Conference 2008 - March 22, 2008
To: AMSAT-BB(AT)amsat.org (AMSAT-BB)
Message-ID:
<022820080553.21715.47C64C4900038626000054D322165662760B9D04C999(AT)comc
ast.net>
Content-Type: text/plain
For those interested. This came through my inbox.
--
73 Bob W7LRD
AMSAT member 28498
Seattle
-------------- Forwarded Message: --------------
From: "Kenny Richards" <richark(AT)gmail.com>
To: PNWVHFS(AT)googlegroups.com
Subject: [PNWVHFS] Update on MicroHAMS Digital Conference 2008 - March 22,
2008
Date: Thu, 28 Feb 2008 04:42:18 +0000
The MicroHAMS Digital Conference is almost a month from now, so I wanted to
send out a reminder and some updates about the conference. I've attached the
full announcement (please forward to any mailing list which seems appropreate)
at the bottom of this e-mail. The announcement and online registration are
also available on the MicroHAMS website: http://www.microhams.com.
Updates:
1. I have finalized the list of speakers and topics for the conference. A
full agenda for the day is included in the announcement at the bottom of this
e-mail. I'm very excite about the talks this year, there is something in
there for everybody and just some really cool topics are going to be covered.
2. The location of the conference has been finalized. We will be in Building
122 on the Microsoft Campus. This building is actually on the West side of
Hwy 520, but is still in the general area of the main campus. If you have no
idea what Building 122 means, don't worry. I'll have full directions, GPS
coordinates and a map posted in a couple days to the website.
3. We had a small technical problem with the online registration page for the
first couple days it was available. If you were using the Firefox browser and
went through the registration process, you were never directed to the page
with the Paypal link for paying the registration fee. This was fixed and I
contacted everybody who appeared to have gotten caught by the bug.
My final note is just a request to please register via the online form if your
planning on attending. This is really important so I can get the food order
right and it will really speed up the sign-in process Saturday morning if
everybody is already pre-registered.
I hope to see you all next month!
73,
Kenny, KU7M
MicroHAMS Digital Conference 2008
Announcement
Announcing the second annual MicroHAMS Digital Conference! The event will be
held this year on the main Microsoft campus located in Redmond, WA on March
22nd, 2008. The agenda this year will include a wide variety of topics around
digital communications and Amateur radio. Because of the huge success of last
year's event, we have added 50% more seating for this year's event. Lunch and
snacks are included with the price of the conference and we'll have free
Internet access.
Because of space limitations and parking requirements on the Microsoft campus,
we are strongly suggesting pre-registering for the event. Registration is
$12.00 if done prior to the event and will be $15.00 at the door. We have a
web-based sign-up form (details below) and have arranged pre-payment via the
Paypal service. (No Paypal account is necessary)
Event Details
Date/Time:March 22, 2008 - 09:00 to 17:00
Location:Redmond, WA (Building 122 on the Microsoft Corporate Campus)
Lunch:Sub sandwiches and snacks (included with registration fee)
After Event:Pizza Gathering (local pizza place to be named later)
Cost:$12.00 if pre-paid or $15.00 at the door (To cover the cost of hosting
the event and lunch)
Door Prizes:Donations from Icom, MicroHAMS, etc
Registration:http://www.microhams.com/digitalconference
Agenda
TimePresenterTitle Description
9:00AMN8GNJ / Steve StrohAmateur Radio Networking An overview of Amateur
Packet Radio Networking 3.0. 1.0 was the original Packet Radio, Net/ROM
networking, BBS, etc. 2.0 was TCP/IP, APRS and other follow-ons to Packet
Radio.
10:00AMKK7UQ / Clint HurdMoving away from RS232 devices to the world of
USB!Use a single USB cable to connect to an integrated sound card, CW and RTTY
interface - and get improved performance at the same time.
11:00AMKE7DEN / Dennis HardingMicrosoft .Net and Mapping API for Hams,- an
introductionMicrosoft provides several .Net API for device communications and
mapping of data. This talk will focus on .Net API that can be used for local
and remote control of serial devices, and the mapping of data using the
MapPoint and Virtual Earth API. Example application showing the use of the API
will be provided to enable participants to develop their own applications
using free development tools from Microsoft.
NOONLunchSandwiches, Chips and PopTurkey, Ham, Roast Beef and Veggie
1:30PMKK7P / Lyle JohnsonPSK31 Without a ComputerOpen source solution being
sponsor by the AmQRP group, to build a DSP based hardware modem. Also a look
at the Elecraft K3 internal CW -> PSK31 function.
2:30PMN7SS / Scott HonakerGetting online with DSTARUsing DSTAR and some of the
latest DSTAR tools
3:30PMKC7IGT / Miguel MayorgaRemote Station Operation via the Internet
Leveraging the internet to operate your home rig from anywhere. A look at the
system integration required for enabling a operating your home rig via the
internet and the how much fun a remote setup can be.
4:30PMN0AX / Ward SilverModulations, Protocols and Modes - Oh My!
The talk would cover these basic differences between modulation, protocol and
a mode; give a review of what a "stack" is, and present specific instances as
illustrations. The goal is to
equip hams to be better able to discuss digital communications.
Registration Details
Due to the requirements for hosting the event on the Microsoft campus, we are
required to register all the vehicles that will be parked on the campus. To
make the registration process easier this year, we have a web-based
registration form available at http://www.microhams.com/digitalconference.
You will be able to register for the conference, provide your vehicle
information and pre-pay via the MicroHAMS website. On site registration will
be available if space is available for the $15 at the door fee.
Hope to see you at this year MicroHAMS Digital Conference.
73,
Kenny, KU7M
ku7mradio(AT)gmail.com
--~--~---------~--~----~------------~-------~--~----~
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------------------------------
Message: 12
Date: Wed, 27 Feb 2008 15:32:10 -0800
From: "Ronald A. Stunden" <ve7yc-(AT)shaw.ca>
Subject: [amsat-bb] Patch Antenna
To: amsat-bb(AT)amsat.org
Message-ID: <0JWX002D381NB110(AT)l-daemon>
Content-Type: text/plain; charset=us-ascii; format=flowed
What effect is using a thicker plate have on the antenna. Say going
from .010 to .032.
------------------------------
Message: 13
Date: Thu, 28 Feb 2008 09:53:12 +0100
From: John Hackett <archie.hackett(AT)hotmail.com>
Subject: [amsat-bb] S-band test gear.
To: "Kevin J. Smith" <kevin.j.smith(AT)comcast.net>
Cc: amsat-bb(AT)amsat.org, "Eu-amsat(AT)yahoogroups.com"
<eu-amsat(AT)yahoogroups.com>
Message-ID: <BLU138-W401AA1ABE363EF4FD8EEF7911B0(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Certainly Kevin,
<http:www.observations.biz> Observations From Norway, article 1 for 2008.
..............................................................................
..............
73 John. <la2qaa(AT)amsat.org>
> From: kevin.j.smith(AT)comcast.net
> To: la2qaa(AT)amsat.org
> Subject: RE: [amsat-bb] S-band test gear.
> Date: Wed, 27 Feb 2008 21:44:17 -0500
>
> John,
>
> You may have been told this already but your attachment(s) was stripped off
> before posting to the Amsat BB. It's a shame because would have liked to
> see it(them). Do you have a website to see your pictures? - Kevin/N3HKQ
>
> -----Original Message-----
> From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org]
On
> Behalf Of John Hackett
> Sent: Wednesday, February 27, 2008 6:23 AM
> To: allan_gm1sxx(AT)hotmail.com
> Cc: amsat-bb(AT)amsat.org; Eu-amsat(AT)yahoogroups.com
> Subject: [amsat-bb] S-band test gear.
>
>
> OBSERVATIONS FROM NORWAY. February 2008.
>
> Based on SV1BSX's comments about receiving a *THUNDERING* signal from
> AO-51's S-band transmitter on a patch antenna 'without' a reflector - I
> decided to chuck together a few components to see if somebody as 'thick' as
> LA2QAA could manage it.
>
> The attached pic is the ... 'fruits of LA2QAA's labour'.
>
> Starting at the top right we have a silver covered brass plate 2.4Ghz patch
> antenna (note the real gold SMA connector, folks) mounted 3mm over a (ditto)
> groundplane, via a short length of high quality (fell off the back of a
> North Sea Oil industry lorry) coax feeding the input of a 2.4G 70 70cm
> converter ... the output of which goes to the IC-E91 dual mode handheld and
> a pair of 'cans' ... (headphones, to you!).
>
> To the right of the IC-E91 is a Nokia N70 mobile phone - (not shown in this
> pic because I was using it to take the picture) - with the 'SATme' tracking
> software ... which is very !! useful for tracking S-mode signals from LEO
> birds with the 'slight' doppler thus received.
>
> The phone also contains a compas as well as GPS software so there's no
> excuse for ... 'but I can't find north' ... (not always easy in 3 feet of
> snow, null visibility and cloudy conditions) ... and there's *NEVER* a
> brownie or a girl guide around when you want one.
>
> S-band signals in those conditions? ... you'd be surprised - we don't all
> live in satellite friendly climes you know.
>
> Mak (SV1BSX) is right. A 60cm dish is overkill for AO-51 mode-S ... though
> of course, there are! those that think you need a personal Jodrell Bank to
> hear anything above 70cm.
>
------------------------------
Message: 14
Date: Thu, 28 Feb 2008 13:18:13 -0000
From: "Howard Long" <howard(AT)howardlong.com>
Subject: [amsat-bb] Re: LVB Tracker Questions
To: <9w2qc(AT)9w2qc.net>, <amsat-bb(AT)amsat.org>
Message-ID: <001201c87a0c$60c1a9c0$5b6aa8c0(AT)LAPTOP9>
Content-Type: text/plain; charset="us-ascii"
Hi Sion Chow
Sorry, I only just noticed your post.
Putting my finger in the air, the LCD you suggest should work as it looks
like it uses the standard Hitachi parallel interface.
Regarding the Lantronix Ethernet adapter, exactly as Gould suggests,
essentially it's simply converting Ethernet to a logic level UART interface
just like the FTDI device does. Like the FTDI device you need to install a
virtual COM port driver on your PC.
I wrote up some (very) rough notes a few months ago.
It consists of a 3.3V LDO and some resistors to do 5V to 3.3V conversion
from the PIC to the Lantronix device. The PIC inputs are compatible with the
3.3V levels provided by the Lantronix: this is why there are two unused
TO-92 transistors on the board that I originally thought would be necessary
to do the voltage upconversion.
http://www.g6lvb.com/Articles/LVBTracker/Ethernet/IMG_0057small.jpg
http://www.g6lvb.com/Articles/LVBTracker/Ethernet/IMG_0058small.jpg
http://www.g6lvb.com/Articles/LVBTracker/Ethernet/IMG_0059small.jpg
http://www.g6lvb.com/Articles/LVBTracker/Ethernet/IMG_0061small.jpg
The Lantronix takes a lot of juice so you must adequately heatsink the 5V
regulator on the main LVB board. I don't think that a simple clip-on
heatsink is sufficient if you adhere to the "too hot to touch" rule of
thumb. The LDO doesn't need a heatsink.
73, Howard G6LVB
-----Original Message-----
From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org] On
Behalf Of Gould Smith
Sent: 25 February 2008 20:33
To: 9w2qc(AT)9w2qc.net; amsat-bb(AT)amsat.org
Subject: [amsat-bb] Re: LVB Tracker Questions
Hello Sion Chow,
I have placed information on LCD selection for the LVB Tracker on the
LVBTracker.com . These were generated from problems we experienced in
selecting LCDs for the complete tracker box.
The ethernet interface has only been tested by building a handmade interface
board between the Lantronix part and the 28 pin Tracker box socket. The
Lantronix software driver does essentially what the FTDI software does for
the USB module - it converts the serial data between the LVB processor and
computer serial port (real or redirected) to either USB or ethernet
communication. The computer tracking software thinks it is taking out a
standard serial port and the LVB Tracker processor thinks it is taking
through a RS232 serial port.
If you have a special program on the computer to generate rotor data into a
USB port or Ethernet port you can use the modules. Essentialy you are just
faking the computer tracking software into thinking it is still talking
through a serial port and using a USB or Ethernet connection between the
two.
73,
Gould, WA4SXM
----- Original Message -----
From: <9w2qc(AT)9w2qc.net>
To: <amsat-bb(AT)amsat.org>
Sent: Monday, February 25, 2008 2:53 PM
Subject: [amsat-bb] LVB Tracker Questions
> Dear All,
>
> Greetings from Kuala Lumpur, Malaysia.
>
> I have built one LVB Tracker complete kit from AMSAT-UK, and am
> extremely pleased with it. Now I would like to build another unit, but
> this time from scratch. I have two questions about this tracker,
> which I hope someone can help me clarify.
>
> 1. Can someone kindly advice a suitable LCD panel for this tracker?
> Would the Powertip PC1602ARU-HWB-G be compatible with this tracker?
> (RS Part Number 466-6452)
>
> 2. I am also very interested into the Ethernet interface, but have no
> clue on how this works. I know a suitable unit is produced by
> Lantronix but that is about it. Could someone kindly advice what do I
> need to get the Ethernet interface going? Is there an evaluation kit
> readily available like the one from FTDI for the USB interface?
>
> Any help and advice is really appreciated. Thank you very much in
> advance.
>
> 73,
> Sion Chow Q. C.,
> 9W2QC.
>
> _______________________________________________
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------------------------------
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Sent via amsat-bb(AT)amsat.org. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
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End of AMSAT-BB Digest, Vol 3, Issue 108
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