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CX2SA > SATDIG 23.07.08 16:32l 898 Lines 29279 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Cost of an HEO launch (Jim Jerzycke)
2. FW: Re: Mounting a Primestar Dish (w7lrd(AT)comcast.net)
3. Re: Just finished the survey (Dave Guimont)
4. Re: AMSAT NA (Nate Duehr)
5. Re: Bill Ress - N6GHz - Board Candidate - OperatingSurvey
(Edward Cole)
6. Re: Bill Ress - N6GHz - Board Candidate - Operating Survey
(Nate Duehr)
7. Predix program in Flash? (Nigel Gunn G8IFF/W8IFF)
8. Re: Bill Ress - N6GHz - Board Candidate - OperatingSurvey
(Edward Cole)
9. Re: Bill Ress - N6GHz - Board Candidate - OperatingSurvey
(Nate Duehr)
10. Re: Predix program in Flash? (Nate Duehr)
11. Re: Bill Ress - N6GHz - Board Candidate - OperatingSurvey
(Edward Cole)
12. re polarity control help needed (Angus)
13. Re: Bill Ress - N6GHz - Board Candidate - Operating Survey
(John Price)
14. go-32 techsat 435.225? (Mr Jeffrey L Ross)
15. Re: Bill Ress - N6GHz - Board Candidate - OperatingSurvey
(Alan P. Biddle)
----------------------------------------------------------------------
Message: 1
Date: Tue, 22 Jul 2008 20:06:14 -0700 (PDT)
From: Jim Jerzycke <kq6ea(AT)pacbell.net>
Subject: [amsat-bb] Re: Cost of an HEO launch
To: SV1BSX <sv1bsx(AT)yahoo.gr>, Bill Ress <bill(AT)hsmicrowave.com>
Cc: amsat-bb(AT)amsat.org
Message-ID: <552237.71797.qm(AT)web80608.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
We used to be called "The K-Mart Of Launch Providers"
(I work there), but I think we've recently raised our
prices to about the same as everybody else.
73, Jim KQ6EA
--- SV1BSX <sv1bsx(AT)yahoo.gr> wrote:
> Hi,
>
> I have seen a moovie on TV a month ago, about
> SEA-LAUNCH,
> an alternative way to launch rockets for commercial
> Satellites.
> It was amazing the ship-pad in the middle of Pacific
> !
> I don't know if that is a cheaper launcher or not,
> however take a look:
>
> http://www.boeing.com/special/sea-launch/
>
>
> 73, Mak SV1BSX
>
>
> ----- Original Message -----
> From: "Bill Ress" <bill(AT)hsmicrowave.com>
> To: "Lee McLamb" <ku4os(AT)cfl.rr.com>
> Cc: <amsat-bb(AT)amsat.org>
> Sent: Wednesday, July 23, 2008 4:13 AM
> Subject: [amsat-bb] Re: Cost of an HEO launch
>
>
> > Hi Lee,
> >
> > Thanks for your input on SpaceX. Do you know if
> AMSAT has contacted any
> > of the multi-manifest brokers working with SpaceX
> to try and flush out
> > cost versus payload estimates on the
> multi-manifest payloads?
> >
> > Regards...Bill - N6GHz
> >
> > Lee McLamb wrote:
> >> Yes, AMSAT has been closely watching the
> developments with SpaceX for
> >> several
> >> years. I've also spoken with several people from
> the company. Currently
> >> they
> >> do not have a launch vehicle capable of reaching
> GTO type orbits. That
> >> will
> >> change as they bring the Falcon-9 on line. I
> think the encouraging part
> >> is
> >> they are already accommodating secondary payloads
> on Falcon-1 missions.
> >> What
> >> types of capabilities the Falcon-9 will have are
> as yet unknown.
> >>
> >> My day job at the Eastern Range also happens to
> include working on the
> >> Falcon
> >> program as SpaceX converts and activates Complex
> 40 for Falcon-9
> >> launches.
> >>
> >> 73,
> >> Lee-KU4OS
> >> AMSAT Exec. VP
> >>
> >> On Sunday 20 July 2008 15:45:32 Bill Ress wrote:
> >>
> >>> Hi Dave,
> >>>
> >>> While SpaceX only works with primary single
> manifest customers, but if
> >>> those customers can't use the entire payload,
> then they can work with
> >>> third party multi-manifest "brokers" and we in
> turn could work with
> >>> these multi-manifest "brokers" for a piece of
> the payload. For sure,
> >>> lots of negotiating required when and if we find
> that a primary manifest
> >>> customer doesn't need the whole payload.
> >>>
> >>> I really don't know if AMSAT management has any
> activity pursuing this
> >>> avenue of launch, but if they don't, they
> should!!
> >>>
> >>> Regards,,,Bill - N6GHz (AMSAT Board Candidate)
> >>>
> >>> Dave hartzell wrote:
> >>>
> >>>> David-
> >>>>
> >>>> Actually, the SpaceX Falcon 1 or 1e could put a
> spacecraft into HEO or
> >>>> lunar transfer orbit:
> >>>>
> >>>>
> http://www.spacex.com/FalconLunarCapabilityGuide.pdf
> >>>>
> >>>> The stated cost for this is around $9m. Of
> course, they haven't
> >>>> gotten a successful orbit yet from a
> F1....maybe the third time will
> >>>> be the charm. Hitching a ride on a larger
> launch vehicle like the F9
> >>>> is interesting, assuming there is capacity and
> the willingness to be a
> >>>> guinea pig (and there WILL be a cost to anyone
> wanting a ride)...
> >>>>
> >>>> It will be interesting to see what launch
> opportunities will be
> >>>> available in the next few years (if any)...
> >>>>
> >>>> Dave
> >>>> AF6KD
> >>>>
> >>>> On Thu, Jul 17, 2008 at 4:40 PM,
> <G0MRF(AT)aol.com> wrote:
> >>>>
> >>>>> The anticipated 'going rate' for this new
> vehicle is shown at the
> >>>>> bottom
> >>>>> of the page.
> >>>>>
> >>>>> _http://www.spacex.com/falcon9.php_
> >>>>> (http://www.spacex.com/falcon9.php)
> >>>>>
> >>>>>
> >>>>> Test flight anyone?
> >>>>>
> >>>>> David
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> _______________________________________________
> >>>>> 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-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-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-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-NA member? Join now to support the
> amateur satellite program!
> Subscription settings:
> http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 2
Date: Wed, 23 Jul 2008 01:53:35 +0000
From: w7lrd(AT)comcast.net
Subject: [amsat-bb] FW: Re: Mounting a Primestar Dish
To: jmario(AT)fast.net
Cc: AMSAT-BB <AMSAT-BB(AT)AMSAT.Org>
Message-ID:
<072320080153.18097.48868F1F0008B32A000046B122165279660B9D04C999(AT)comc
ast.net>
Content-Type: text/plain; charset="us-ascii"
--
"if this were easy, everyone would be doing it"
-------------- Forwarded Message: --------------
From: w7lrd(AT)comcast.net
To: "Reicher, James" <JReicher(AT)hrblock.com>
Subject: Re: [amsat-bb] Mounting a Primestar Dish
Date: Tue, 22 Jul 2008 17:08:40 +0000
Hello Jim
Attached are the some pictures of what I have done. I bolted an aluminum
plate on the back of the dish and attached the angle iron brackets to it. It
is balanced on the rotor. I have found the "sweet spot" for the location of
the 5 1/2 turn helix is very forgiving. If you have any questions, just ask.
73 Bob W7LRD
Seattle
--
"if this were easy, everyone would be doing it"
-------------- Original message --------------
From: "Reicher, James" <JReicher(AT)hrblock.com>
> I've got a G5500 rotor on its way to my QTH very soon, to become a part of
my
> station. I also have a Primestar dish, the really oblong one with a single
feed
> arm, that I want to mount on the rotor. I need some suggestions about how to
> mount, balance, and calibrate the dish so I don't muck up the whole thing.
>
> Please reply off-list
>
>
>
> 73 de W0HV, Jim in Raymore, MO (ex-N8AU)
>
> Light travels faster than sound... This is why some people appear bright
until
> you hear them speak.
>
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateu r satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 3
Date: Tue, 22 Jul 2008 21:08:37 -0700
From: Dave Guimont <dguimon1(AT)san.rr.com>
Subject: [amsat-bb] Re: Just finished the survey
To: "Michael Tondee" <mat_62(AT)netcommander.com>
Cc: amsat-bb(AT)amsat.org
Message-ID:
<20080723040841.PNSH19640.cdptpa-omta04.mail.rr.com(AT)Dave.san.rr.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed
>
> Unlike some here, I am one that enjoys the FM birds but doesn't
> AMSAT-NA need to be at least considering a linear transponder LEO?
> It may very well be the best we can do.
Could not agree more, whatever ORBIT is OBTAINABLE....BANDWIDTH!!
73, Dave, WB6LLO
dguimon1(AT)san.rr.com
Disagree: I learn....
Pulling for P3E...
------------------------------
Message: 4
Date: Tue, 22 Jul 2008 22:34:03 -0600
From: Nate Duehr <nate(AT)natetech.com>
Subject: [amsat-bb] Re: AMSAT NA
To: JoAnne Maenpaa <k9jkm(AT)comcast.net>
Cc: amsat-bb(AT)amsat.org
Message-ID: <B357B6E0-FC3E-44DC-BA9E-53CF9CDFA338(AT)natetech.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed
On Jul 16, 2008, at 11:13 AM, JoAnne Maenpaa wrote:
> build a mission ... not just a satellite.
Great slogan, and the right way to get things done.
--
Nate Duehr, WY0X
nate(AT)natetech.com
------------------------------
Message: 5
Date: Tue, 22 Jul 2008 22:04:31 -0800
From: Edward Cole <kl7uw(AT)acsalaska.net>
Subject: [amsat-bb] Re: Bill Ress - N6GHz - Board Candidate -
OperatingSurvey
To: "Amsat BB" <amsat-bb(AT)amsat.org>
Message-ID: <200807230604.m6N64Vgg059613(AT)hermes.acsalaska.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 04:11 AM 7/22/2008, Andrew Glasbrenner wrote:
>Some replies to Ed's comments:
>>
>>The Intelsat should be much less expensive:
>>1-free ride
>>2-free power
>>3-free stabilization
>
>Let me clarify this some. It is -not- a free ride. Intelsat will
>charge us for the loss of operational time for every kg of
>stationkeeping fuel they offload to accomondate our extra mass.
>There may be some recurring expenses as well.
>
>>
>>All you provide is RF, antennas, and a communication processor.
>
>The good stuff.
>
>>But the location is specified by Intelsat so only one-third of the
>>earth is covered. Which third do you chose for satellite #1. For
>>whole-earth coverage you need rides to three locations 120-deg
>>longitude apart. Far north latitudes will probably not get
>>coverage due to low angles to GEO.
>>
>>For my location at 60.7 latitude the GEO path is 21 degrees
>>elevation due south and is lower as you move east or west.
>
>We most likely would not be dealing with any sort of spot beam and
>the antennas should be broadbeamed enough so that there is no reason
>to assume 1/3 instead of almost 1/2. If you could work AO-10, AO-13,
>or AO-40 near the horizon, the same would likely be true for
>Intelsat. What would be different is we each could dedicated a fixed
>antenna with no rotor for ground side, and if you live surrounded by
>100' pine trees like I do, you can find an open hole to point through.
>
>>
>>So continuing with Eagle offers world coverage over a couple days
>>of orbiting. GEO stays in one position.
>While this will maybe make some DXers feel less fulfilled than a
>HEO, it's my hope that it will attract 10x their number in other
>users. A GEO knocks 500$ of the top of everyone's station budget
>right out of the gate...no az-el rotor. Think of the traffic that is
>likely to be attracted to this...24/7 amateur coverage with set and
>forget antennas over 1/2 the earth. No Doppler tuning. Practically
>fixed gain requirements. We may have to find a way to manage the
>data and repeater system links that will inevitably show up. My gut
>suspicion is we won't be able to afford enough bandwidth on the
>first iteration for the users that may come out of the woodwork. If
>we could just get all the users to support the program...
>
>
>>I will see you in Anchorage, Drew!
>
>The YL and I will be in Anchorage on Saturday evening, then in
>Seward and Whittier until Thursday or so. I'm looking forward to
>meeting and speaking with all of ya'll!
>
>73, Drew KO4MA
OK Drew,
I probably over simplified the savings.
MY point on viewing a GEO is if it is centered over the east coast of
the USA it will be below my horizon. If it is over Europe or central
Asia, again no view for anyone on the West Coast of the USA. I have
extensive experience with setting up c-band satellite dishes in
Alaska and the limits of how far east one can view them. Of course a
GEO stationed from Japan to California will be accessible though at
the extreme ends the elevation angle will be around 5-degrees and my
trees mask the sky at least to 10-degrees. No Holes in the solid
forest up here.
Whereas a HEO travels over the pole so lots of high elevation view
angles for norhern stations. Less for southern hemisphere,
though. GEO is more equal on that issue.
I'm sure that a GEO will be very popular due to the simple ground
station set up. I only hope that if we can get one up that I will
have a view of it. The only way to assure world wide use with GEO's
is to launch three of them spaced around the earth separated by
120-degrees of longitude. So the politics are more sticky for the GEO.
At this point I will be happy with a linear translator satellite in
MEO, HEO, or GEO.
73 Ed - KL7UW
------------------------------
Message: 6
Date: Wed, 23 Jul 2008 00:05:15 -0600
From: Nate Duehr <nate(AT)natetech.com>
Subject: [amsat-bb] Re: Bill Ress - N6GHz - Board Candidate -
Operating Survey
To: w8iss(AT)amsat.org
Cc: "amsat-bb(AT)amsat.org" <amsat-bb(AT)amsat.org>
Message-ID: <8BF89525-B14F-417E-A4A6-0EF5CB2E437C(AT)natetech.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
On Jul 21, 2008, at 7:45 PM, James French wrote:
> James W8ISS - a voting member that has issues with the current crop of
> APPLIANCE OPERATORS on the amateur bands!!!
I reply locally to this sentiment the same way I'll reply here James.
"When and where is your next class, and is it suited to people with
zero technical knowledge? I'll send the announcement to the 400
members of my repeater club, you'll probably have a big crowd and even
bigger for the second session, if you have any idea what you're doing
as an instructor."
Better yet... "Why should anyone with technical knowledge feel or act
superior to someone who doesn't have it? Shouldn't you be helping
them learn? Didn't you have an Elmer or some other way to learn this
knowledge?"
Or perhaps the meanest one used to plonk someone whining about this
locally this week, "Did you pop out of your momma knowing CW and how
to read a Smith Chart?"
This "I hate non-techies" attitude many older "technical" hams seem to
have, gets old. Do you think it's helping the hobby any? Think about
it.
Do something about it if it distresses you so much. Teach. Now. Not
"someday" when you have time. Make videos. Whatever... just do it
and quit complaining.
As someone else pointed out, much of the current growth in ham radio
is in 50-something males who now have time and money and can buy rigs
and get on the air. Your job, if you want the hobby to be "more
technical" than them just buying rigs and using them... is to a) give
them a reason why they should learn something they don't need -- which
they'll also figure out on their own, given time... and b) a forum in
which to learn... that's as convenient and fun for them as turning on
that $1000 rig and talking to people.
Neither one is easy. Whining about it is easy, though.
Got a good reason a guy with $2000 burning a hole in his pocket needs
to learn about superheterodyne receivers, James? I don't. He can buy
one with all the fancy features and use it today without needing to
know anything about how it works.
Just because you like to learn (as do I -- there's a reason I took
months to read the ARRL Antenna Manual from cover to cover), doesn't
mean the new folks do. What motivated you? Would it work on them?
Guilt trips and bad attitudes from old-timers will certainly be
ignored... get used to it. Find another (more positive) way.
--
Nate Duehr, WY0X
nate(AT)natetech.com
------------------------------
Message: 7
Date: Wed, 23 Jul 2008 06:06:01 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel(AT)ngunn.net>
Subject: [amsat-bb] Predix program in Flash?
To: amsat-bb(AT)amsat.org
Message-ID: <4886CA49.8050301(AT)ngunn.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Is it possible, or has anybody already done it, to write a satellite
predictions program in Flash to run in a web browser?
I've just got an Archos media player with wi-fi and a web browser and a really
good touch screen that's crying out for something similar to
InstanTrack or Orbitron but it only accepts "Flash games" or "Opera Widgets"
as software addons.
Don't want rig ar antenna control, doppler corrections or anything, just a
basic graphical tracking program.
Nigel G8IFF/W8IFF
------------------------------
Message: 8
Date: Tue, 22 Jul 2008 22:15:45 -0800
From: Edward Cole <kl7uw(AT)acsalaska.net>
Subject: [amsat-bb] Re: Bill Ress - N6GHz - Board Candidate -
OperatingSurvey
To: <amsat-bb(AT)amsat.org>
Message-ID: <200807230615.m6N6Fkul013565(AT)malik.acsalaska.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 04:30 AM 7/22/2008, you wrote:
>I do not think this is helpful. IMHO a survey should come from the
>BOD, and of course the design should incorporate the thoughts of a
>number of persons - the BOD, of course, but also others that the BOD
recruits.
>ron w8gus
Ron,
Altough I understand where you coming from, that does not invalidate
Bill's survey. He has the right to gather opinions unilaterally so
that he can check his assumptions on what the satellite community
wants. My Senators and Congressman send out questionaires all the
time and that is not approved by the whole Senate or Cogress.
I agree that Amsat would be served well to make periodic surveys to
determine the directions the membership and general satellite community wish.
Bill, I hope that you will share the results with the -bb, but you
are not required to.
73 Ed - KL7UW
------------------------------
Message: 9
Date: Wed, 23 Jul 2008 00:15:54 -0600
From: Nate Duehr <nate(AT)natetech.com>
Subject: [amsat-bb] Re: Bill Ress - N6GHz - Board Candidate -
OperatingSurvey
To: AMSAT-BB <amsat-bb(AT)amsat.org>
Message-ID: <77713BD6-228C-4CF4-8F79-3F4795DA57F7(AT)natetech.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
On Jul 22, 2008, at 7:27 AM, Alan P. Biddle wrote:
> There is always a faction in any organization, whether it be
> political,
> religious, labor union, or hobby, that assumes that if the leaders
> just did
> their job correctly, all of that organization's goals would be
> achieved
> already. Since they are not, it is taken as proof that the
> leadership is
> lacking, or worse.
Hell, that's the driving theme of every U.S. Presidential candidate
for my entire adult life so far. "The other group has a guy that's a
poor leader. I'll be a better one."
You'd think ONE of them would realize how boring that gong is and
voice some real goals!
(Sorry, off-topic... I know.)
It's not a faction -- it's human nature. People think the grass is
always greener on the other side.
Rising above that broken thought process is something few even
attempt, this list having NUMEROUS examples of how unnatural it is, to
do so.
The reality is that the grass only gets greener if you care enough to
work on it. The guys with the green grass did and didn't ask for
"leadership" to approve or fund it. They find their own ways.
Taking control of one's own actions and outcomes is somehow very
difficult for a lot of people. Whining is usually the end-result of
them not being able to do it.
--
Nate Duehr, WY0X
nate(AT)natetech.com
------------------------------
Message: 10
Date: Wed, 23 Jul 2008 01:12:19 -0600
From: Nate Duehr <nate(AT)natetech.com>
Subject: [amsat-bb] Re: Predix program in Flash?
To: nigel(AT)ngunn.net
Cc: amsat-bb(AT)amsat.org
Message-ID: <3DFD55C5-5C57-46C0-9DB7-881573D87BDD(AT)natetech.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
On Jul 23, 2008, at 12:06 AM, Nigel Gunn G8IFF/W8IFF wrote:
> Is it possible, or has anybody already done it, to write a satellite
> predictions program in Flash to run in a web browser?
>
> I've just got an Archos media player with wi-fi and a web browser
> and a really good touch screen that's crying out for something
> similar to
> InstanTrack or Orbitron but it only accepts "Flash games" or "Opera
> Widgets" as software addons.
>
> Don't want rig ar antenna control, doppler corrections or anything,
> just a basic graphical tracking program.
>
> Nigel G8IFF/W8IFF
Try pointing it at http://www.heavens-above.com to see what that does
on it.
--
Nate Duehr, WY0X
nate(AT)natetech.com
------------------------------
Message: 11
Date: Wed, 23 Jul 2008 01:38:11 -0800
From: Edward Cole <kl7uw(AT)acsalaska.net>
Subject: [amsat-bb] Re: Bill Ress - N6GHz - Board Candidate -
OperatingSurvey
To: Nate Duehr <nate(AT)natetech.com>, AMSAT-BB <amsat-bb(AT)AMSAT.Org>
Message-ID: <200807230938.m6N9cBE0020221(AT)malik.acsalaska.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
I've always thought that a leader is one who sees the road to take
and sets out on it. Sometimes he asks others to follow him. Other
times he just ventures forth and finds others willing to go with him
to see where they end up.
So in the begining there is a vision. The leader expresses that
vision and puts forth a sequence of action to achieve the goal.
Of course maybe that goal is to move someone in the road out of the
way so he can get on down the way!
Certainly, negative goals are less appealing then positive ones.
Anyone want to expand this?
*****************************************************
73, Ed - KL7UW BP40iq, 6m - 3cm
144-EME: FT-847, mgf-1801, 4x-xp20, 185w
http://www.kl7uw.com AK VHF-Up Group
NA Rep. for DUBUS: dubususa(AT)hotmail.com
*****************************************************
------------------------------
Message: 12
Date: Wed, 23 Jul 2008 10:47:09 +0100
From: "Angus" <angus(AT)young5769.freeserve.co.uk>
Subject: [amsat-bb] re polarity control help needed
To: <amsat-bb(AT)amsat.org>
Message-ID: <E6CA10EA1B5945BEB5181ABE964E1D30(AT)GusPC>
Content-Type: text/plain; charset="iso-8859-1"
Hi all, I have built a simple polarity control box to allow V, H, RHCP & LHCP
off my 6 element homebrew crossed yagi.
The yagi had an SWR of 1.1 to 1 on 145mhz on the 45degree and 135degree
elements, so they are fine.
The control box is a copy off the G6LVB website and the VHF/UHF manual 4th
edition.
The unit is basically 2 x 1/4waves of 75ohm coax to use as a matching unit and
then relays to switch in or out 1/4 wave and a 1/2wavelength of 50ohm coax to
give the different polarities.
My small problem is although the SWR through all the modes is under 1.5 to 1 I
would like to bring it down a little, but is it worth the effort?
results:
V polarity 144mhz 1.2 to 1, 145mhz 1.3 to 1, 146mhz 1.5 to 1
H polarity 144mhz 1.5 to 1, 145mhz 1.3 to 1, 146mhz 1.2 to 1
RHCP 144mhz 1.1 to 1, 145mhz 1.3 to 1, 146mhz 1.5 to 1
LHCP 144mhz 1.5 to 1, 145mhz 1.3 to 1, 146mhz 1.1 to
Am I worrying over nothing or should I go and alter the unit to give a
slightly better result, my head says 'leave lt alone or you will muck it up'.
But I am also thinking a little shorter cable might be all it needs?
Does anyone know by looking at the figures what cable needs to be altered
(longer/shorter).
Thanks for any advice
regards
Gus M0IKB
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------------------------------
Message: 13
Date: Wed, 23 Jul 2008 06:18:54 -0400
From: "John Price" <n4qwf1(AT)gmail.com>
Subject: [amsat-bb] Re: Bill Ress - N6GHz - Board Candidate -
Operating Survey
To: "Edward Cole" <kl7uw(AT)acsalaska.net>, "amsat-bb(AT)amsat.org"
<amsat-bb(AT)AMSAT.Org>
Message-ID:
<8d1b8e80807230318n2b358a2dsab821f3f038668c2(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
At Dayton I ask the folks what there plan was and they said there was
none. If it ain't right the
horse lied. 73's << John
On Wed, Jul 23, 2008 at 1:45 AM, Edward Cole <kl7uw(AT)acsalaska.net> wrote:
> At 02:34 AM 7/22/2008, you wrote:
>>
>> James, I wont be investing in 3 gig equipment. If I had plenty of
>> money and lots of expertise all things would be possible. In the real
>> world it just don't work that way. You are trying to sell Amateur
>> Satellite service to the masses by offering them a chance to work
>> something that they can't use or afford. The time and expense that is
>> put into developing transponders that you can't buy a radio to work is
>> not practical. Do you know that Yaesu has withdrawn from the satellite
>> market?
>
> Where have you gotten this news? The FT-847 is out of production but that
> does not mean they aren't working on new satellite rig.
>
>
> *****************************************************
> 73, Ed - KL7UW BP40iq, 6m - 3cm
> 144-EME: FT-847, mgf-1801, 4x-xp20, 185w
> http://www.kl7uw.com AK VHF-Up Group
> NA Rep. for DUBUS: dubususa(AT)hotmail.com
> *****************************************************
>
--
N4QWF Amateur Radio Operator
AO-7,AO-27,SO-50,AO-51,VO-52,ISS
Internet N4QWF(AT)AMSAT.ORG
Echolink nodes #110903 -L #388463
Formerly KC4AHW VK3FEZ
Amsat Member #27845
DXCC #33,478
VUCC SAT #135
WAS SAT #296
51 on AO-51 #13
LON -79.256 LAT 37.459 Grid FM07il
>From the Foothills of the Blueridge
*Life should not be a journey to the grave with the intention of
arriving safely in a pretty and well preserved body, but rather to
skid in broadside, thoroughly used up, totally worn out, and loudly
proclaiming - "WOW, What a ride!"
------------------------------
Message: 14
Date: Wed, 23 Jul 2008 09:19:04 -0400
From: "Mr Jeffrey L Ross" <radiooperator(AT)comcast.net>
Subject: [amsat-bb] go-32 techsat 435.225?
To: "amsat" <amsat-bb(AT)amsat.org>
Message-ID: <000801c8ecc6$aea57d60$6401a8c0(AT)hamshackcomputer>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
hi folks, is this the right freq for the downlink on go 32 techsat? 435225?
9600 baud packet. Having a hard time getting anything from this sat with the
new rig, my dcd lite is blinking steady while nothin showing on the screen.
I do know when the sat comes the dcd lite should stay on. Thanks in advance.
kc8gkf
------------------------------
Message: 15
Date: Wed, 23 Jul 2008 08:52:38 -0500
From: "Alan P. Biddle" <APBIDDLE(AT)UNITED.NET>
Subject: [amsat-bb] Re: Bill Ress - N6GHz - Board Candidate -
OperatingSurvey
To: <amsat-bb(AT)amsat.org>
Message-ID: <699D51B4FAA44A23A6622217F5B1E883(AT)WA4SCA>
Content-Type: text/plain; charset="us-ascii"
At Dayton this year, as last, I asked about a replacement for the FT-847.
Both times, I was told that some preliminary work had been done, but that it
was on hold pending the launch of a HEO (or other) satellite which would
generate sufficient demand for an updated rig. While the FT-847 was selling
steadily, once the parts dried up it was judged not economic to put a new
one on the market at the current demand. That answer is not inconsistent
with the statement that there are no plans to bring one out now. I have
found that with these sorts of questions, the answer depends on who you ask,
how you ask, and whether you follow up.
Of course you can still buy a TS-2000 or an IC-910 new. And Flex Systems is
closing in on bringing out their own integrated 2 m and 70 cm transverters
which will make the Flex-5000 out of the box a full duplex satellite rig,
with great flexibility for adding microwave bands. The TS-2000 has so much
appeal outside the satellite community that it or something similar is safe
for now. There are some rumblings of an updated IC-910 as well. So there
are options still.
Alan
WA4SCA
------------------------------
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End of AMSAT-BB Digest, Vol 3, Issue 368
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