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CX2SA > SATDIG 12.07.11 14:49l 757 Lines 26594 Bytes #999 (0) @ WW
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Today's Topics:
1. KB5WIA California Lost Coast (CM79/CM89/CN70/CN80) August
7-8, 2011 (David Palmer KB5WIA)
2. Re: KB5WIA California Lost Coast (CM79/CM89/CN70/CN80) August
7-8, 2011 (Jeremy Widner)
3. Re: KB5WIA California Lost Coast (CM79/CM89/CN70/CN80) August
7-8, 2011 (David Palmer KB5WIA)
4. ND9M in DM51/52 on AO-27 2047z 11July (John Papay)
5. Re: ICOM 9100 (Erich Eichmann)
6. Re: OM/OE/HU/NZ5N Tuesday on AO-7 from the former Iron
Curtain (Bill)
7. SatPC32 simplified (Thomas Doyle)
8. 70cm Helicoil Good/Bad expensive? (Kevin Deane)
9. Re: 70cm Helicoil Good/Bad expensive? (Nigel Gunn G8IFF/W8IFF)
10. Re: 70cm Helicoil Good/Bad expensive? (Jim Jerzycke)
11. Re: 70cm Helicoil Good/Bad expensive? (Greg D.)
12. Re: 70cm Helicoil Good/Bad expensive? (Clint Bradford)
13. Re: 70cm Helicoil Good/Bad expensive? (Art McBride)
14. Re: 70cm Helicoil Good/Bad expensive? (Jim Jerzycke)
15. Re: 70cm Helicoil Good/Bad expensive? (Clint Bradford)
16. Re: 70cm Helicoil Good/Bad expensive? (Bob- W7LRD)
17. Re: 70cm Helicoil Good/Bad expensive? (Greg D.)
18. Re: 70cm Helicoil Good/Bad expensive? (H. Vordenbaum)
----------------------------------------------------------------------
Message: 1
Date: Mon, 11 Jul 2011 12:02:03 -0700
From: David Palmer KB5WIA <kb5wia@xxxxx.xxx>
Subject: [amsat-bb] KB5WIA California Lost Coast (CM79/CM89/CN70/CN80)
August 7-8, 2011
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID:
<CAO-vtPM9hz8CMVHOUKTnLU1j1qt9uXL_+qOW=C=M=nPhgjm2Lw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Everyone,
I'm about a month away from my planned grid-expedition to the rare
grid squares in California's Lost Coast. If all goes well, I'll be
QRV from the grid intersection of CM79, CM89, CN70, and CN80 on Sunday
August 7th and Monday August 8th. As usual, I'll try for as many
linear and FM bird passes as I can manage. I'll be using the twin
Yaesu FT-817ND radios, along with the Elk antenna on a tripod. Power
will come from a lightweight LiFePO4 battery and as much sunlight as
my solar panels can harvest. I haven't been to this location before,
but based on the terrain, I should have fairly good views towards the
horizons, so hopefully anyone in North America who needs these grids
can get them!
http://kb5wia.blogspot.com/2011/07/california-lost-coast-cm79cm89cn70cn80.html
73 de Dave KB5WIA
------------------------------
Message: 2
Date: Mon, 11 Jul 2011 14:24:27 -0500
From: Jeremy Widner <jeremyrwidner@xxxxx.xxx>
Subject: [amsat-bb] Re: KB5WIA California Lost Coast
(CM79/CM89/CN70/CN80) August 7-8, 2011
To: David Palmer KB5WIA <kb5wia@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID:
<CA+BJD2dCnH+tu0o-OUK+4RaDA+6fpLePJTLAvXBzR8E-FX2omA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Here where exactly are you going? I from Garberville and hung around
Shelter Cove often. have a lot of fun.
73
Jeremy Widner
K0PDX
http://k0pdx.us
Secretary Raytown Amateur Radio Club - K0GQ
http://k0gq.com/
On Mon, Jul 11, 2011 at 2:02 PM, David Palmer KB5WIA <kb5wia@xxxxx.xxx>wrote:
> Hi Everyone,
>
> I'm about a month away from my planned grid-expedition to the rare
> grid squares in California's Lost Coast. If all goes well, I'll be
> QRV from the grid intersection of CM79, CM89, CN70, and CN80 on Sunday
> August 7th and Monday August 8th. As usual, I'll try for as many
> linear and FM bird passes as I can manage. I'll be using the twin
> Yaesu FT-817ND radios, along with the Elk antenna on a tripod. Power
> will come from a lightweight LiFePO4 battery and as much sunlight as
> my solar panels can harvest. I haven't been to this location before,
> but based on the terrain, I should have fairly good views towards the
> horizons, so hopefully anyone in North America who needs these grids
> can get them!
>
>
>
http://kb5wia.blogspot.com/2011/07/california-lost-coast-cm79cm89cn70cn80.html
>
> 73 de Dave KB5WIA
> _______________________________________________
> 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: 3
Date: Mon, 11 Jul 2011 12:39:43 -0700
From: David Palmer KB5WIA <kb5wia@xxxxx.xxx>
Subject: [amsat-bb] Re: KB5WIA California Lost Coast
(CM79/CM89/CN70/CN80) August 7-8, 2011
To: Jeremy Widner <jeremyrwidner@xxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID:
<CAO-vtPNjZQBEhz6BuXBr6RkOJ=JTAxw+-V7wQKatTUniFiqNMg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
> Here where exactly are you going? ?I from Garberville and hung around
> Shelter Cove often. ?have a lot of fun.
> 73
> Jeremy Widner
> K0PDX
Yep, will be just south of Shelter Cove on Chemise Mountain. I'm
looking forward to it - this area will be a new one for me!
73 de Dave KB5WIA
------------------------------
Message: 4
Date: Mon, 11 Jul 2011 16:16:05 -0400
From: John Papay <john@xxxxxx.xxx>
Subject: [amsat-bb] ND9M in DM51/52 on AO-27 2047z 11July
To: amsat-bb@xxxxx.xxx
Message-ID: <80582.44256.qm@xxxxxxx.xxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Jim is about 20 miles away from the DM51/52 line and plans
to operate from there on the AO-27 pass coming up at 2047z
or so. If he doesn't make that pass, he'll likely be on FO-29
at 2213z or so. You can track him on APRS, ND9M-9.
73,
John K8YSE
------------------------------
Message: 5
Date: Mon, 11 Jul 2011 22:21:17 +0200
From: "Erich Eichmann" <erich.eichmann@xxxxxxxx.xx>
Subject: [amsat-bb] Re: ICOM 9100
To: "Long, Glen A." <Glen.Long@xxxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <EA86664523F143D598FDC7A0C748F39F@xxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello Glen,
I tried 3 times to answer to your mail but all my mails were rebounced by
the mail delivery system.
I hope you receive this via AMSAT-BB
73s, Erich, DK1TB
------------------------------
Message: 6
Date: Mon, 11 Jul 2011 23:54:46 +0200
From: Bill <billdz.geo@xxxxx.xxx>
Subject: [amsat-bb] Re: OM/OE/HU/NZ5N Tuesday on AO-7 from the former
Iron Curtain
To: Bill Dzurilla <billdz.geo@xxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID: <9C430701-9000-4239-9B41-ED20F2FE94B2@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
All systems go for the trip to the border tomorrow, Tuesday. Set up my
mobile station today for a dry run at a nearby field, nice strong signals
on VO-52 down to the horizon.
I hope a few USA and Canadian hams from Wisconsin to North Carolina will
wake up early and give me a call on AO-7 tomorrow July 12 starting around
0933Z. This will probably be my only pass from the border. I will look for
Europeans before the footprint reaches North America.
73, Bill
On Jul 10, 2011, at 22:49, Bill Dzurilla i<billdz.geo@xxxxx.xxx> wrote:
> I'm going to make a portable AO-7 satellite attempt this Tuesday July 10
from JN88na, at the spot where Slovakia, Hungary, and Austria touch each
other. Prior to 1989, this was part of the Iron Curtain, where the
Communist regimes in Czechoslovakia and Hungary tried to keep their people
from going to Austria. Now, it is just a field with a border marker.
>
> My AOS will be at 0933Z and North America will be in the window for
several minutes. Hope to work several of you, look for me at the high end
of the passband.
>
> 73,
> Bill NZ5N/OM3BD
>
>
------------------------------
Message: 7
Date: Mon, 11 Jul 2011 17:32:11 -0500
From: Thomas Doyle <tomdoyle1948@xxxxx.xxx>
Subject: [amsat-bb] SatPC32 simplified
To: amsat-bb@xxxxx.xxx
Message-ID:
<CAHnRQR+kAYmrHPNPwFJfC3Y8jxd7g8C-bJPt-EoVWQ4+BVM21w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Thanks for all the feedback on the tracker. A few people commented that it
was a bit complex mechanically. This got me thinking about a minimal version
where the mechanical section could be built in less than an hour by almost
anyone.
Several people asked about moving antennas. The motor in the iPoint has
torque of only 35 oz-in. This is at least an order of magnitude less than
enough to move an even a small antenna. The main project I am working on is
an az-el rotor for small antennas. The azimuth rotor is working and I am
working on the mount for the mast. I want to make sure the azimuth rotor is
rock solid before working on the elevation rotor. The reason the motor
driver in the iPoint is so over designed is that it was designed for the
actual rotor not the iPoint. The iPoint actually started out as just a test
bed for software development.
A few people have asked about astronomical applications. I have thought
about that myself and have been looking for a simple usb telescope to mount
on iPoint. It would be interesting to set up SatPC32 to track the moon and
let iPoint run all night and capture shots of the moon from the usb tele.
The tele would have to be very small and light weight. Does anyone have
Kardashian data for heavenly bodies ? Wonder if anyone caught that. I
actually would like to know if it is possible to track the moon with SatPc32
and if so where to get the elements.
Here is a short HD video of the minimalist iPoint. While it may be a piece
of junk it does work and might give someone some ideas on building something
simple but much better than what I did. It did require only a hand drill and
a hacksaw and took only about an hour to build. After seeing it you may
wonder while it took an entire hour. There is a quarter just to the right of
the beast for size reference.
There was quite a bit of discussion on auto license plates a while back. I
did not want to contribute to the QRM then but I do have something on that
topic at the end of the video. It is actually my photo qsl without the
address information - you will understand when you see it. Since I do not
operate very often and qsl only when I get one this is probably your only
chance to see this rare card. If you look carefully at the back left of the
video you can see the azimuth rotor partially disassembled. I keep it there
to make me feel guilty when I work on something else.
here is the simplified tracker - I know it is junky so no need to tell me
http://www.youtube.com/watch?v=nGwyUdb_vHs
Here is the good tracker in case you missed it
http://www.youtube.com/watch?v=gnc4-XcEXEQ
73 tom ...
------------------------------
Message: 8
Date: Mon, 11 Jul 2011 17:39:25 -0700
From: Kevin Deane <summit496@xxxx.xxx>
Subject: [amsat-bb] 70cm Helicoil Good/Bad expensive?
To: <amsat-bb@xxxxx.xxx>
Message-ID: <COL107-W1617872058ECA9428165B283440@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello all, whats the take on these antennas? I am sure someone on here has
used them and they certainly look cool but how do they perform?
Dont you have to switch polerization on a cross polerized yagi?
I know there is not a perfect antenna, just wondering about the Helicoil...
Kevin
KF7MYK
-------->
> Hello all, whats the take on these antennas? I am sure someone on here has
used them and they certainly look cool but how do they perform?
>
> Dont you have to switch polerization on a cross polerized yagi?
>
> I know there is not a perfect antenna, just wondering about the Helicoil...
>
> Kevin
> KF7MYK
>
> _______________________________________________
> 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
>
--
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937
825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF 9H3GN), e-mail nigel@xxxxx.xxx
www http://www.ngunn.net
Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP
Club International #385,
Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC,
GCARES, XWARN, EAA382.
------------------------------
Message: 10
Date: Tue, 12 Jul 2011 01:38:17 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Subject: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
To: amsat-bb@xxxxx.xxx
Message-ID: <4E1BA589.7000803@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
A "Helicoil" is a threaded insert used to repair stripped threads.
I think you're asking about a HELICAL antenna.
They work very well, and are easy to build. They're very forgiving in
construction errors, but have a few pitfalls you want to watch out for.
You do NOT want to wind one on PVC pipe for a support, as the dielectric
constant of the PVC will throw off the antenna from the design numbers
you use to wind the "coil".
This type of helical is called an "Axial Mode" antenna. A "Normal Mode"
helical is how a rubber duck is made, and is not what you want.
The ARRL Antenna Handbook has several designs that work well, and
there's a TON of information on the Web about building an "Axial Mode
Helical Antenna".
They're fixed polarization, determined when you wind it, and the only
way to switch between left-hand and right-hand is to have another
antenna, and switch to it.
I've built several, and they work pretty well. They get pretty big at 2
Meters, but are manageable (at least for me!) at 70cm and up.
73, Jim KQ6EA
On 07/12/2011 12:39 AM, Kevin Deane wrote:
> Hello all, whats the take on these antennas? I am sure someone on here has
used them and they certainly look cool but how do they perform?
>
> Dont you have to switch polerization on a cross polerized yagi?
>
> I know there is not a perfect antenna, just wondering about the Helicoil...
>
> Kevin
> KF7MYK
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
65AEA9440@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
I second Jim's assessment here. Helical antennas are the only way I will
build an antenna at 1.2 ghz or higher. It's not worth the stress trying to
measure things to the precision needed for a Yagi at those frequencies. The
less stress (and time) taken to build the antenna, the more enjoyment you
will get from actually using it!
For 2m and 70cm, Yagis are good, but also consider making a Quad or a Quagi
(a 2 element Quad with more Yagi elements in front). I used a home-built 8
element Quagi from the ARRL Antenna Handbook for several years as a
satellite antenna, until I found a crossed Yagi antenna at a Ham Swap for a
price I couldn't pass up. Still have the Quagi, just in case.
Greg KO6TH
> Date: Tue, 12 Jul 2011 01:38:17 +0000
> From: kq6ea@xxxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
>
> A "Helicoil" is a threaded insert used to repair stripped threads.
>
> I think you're asking about a HELICAL antenna.
>
> They work very well, and are easy to build. They're very forgiving in
> construction errors, but have a few pitfalls you want to watch out for.
>
> You do NOT want to wind one on PVC pipe for a support, as the dielectric
> constant of the PVC will throw off the antenna from the design numbers
> you use to wind the "coil".
>
> This type of helical is called an "Axial Mode" antenna. A "Normal Mode"
> helical is how a rubber duck is made, and is not what you want.
>
> The ARRL Antenna Handbook has several designs that work well, and
> there's a TON of information on the Web about building an "Axial Mode
> Helical Antenna".
>
> They're fixed polarization, determined when you wind it, and the only
> way to switch between left-hand and right-hand is to have another
> antenna, and switch to it.
>
> I've built several, and they work pretty well. They get pretty big at 2
> Meters, but are manageable (at least for me!) at 70cm and up.
>
> 73, Jim KQ6EA
>
>
> On 07/12/2011 12:39 AM, Kevin Deane wrote:
> > Hello all, whats the take on these antennas? I am sure someone on here
has used them and they certainly look cool but how do they perform?
> >
> > Dont you have to switch polerization on a cross polerized yagi?
> >
> > I know there is not a perfect antenna, just wondering about the
Helicoil...
> >
> > Kevin
> > KF7MYK
> >
> > _______________________________________________
> > 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-NA membok for several years as a
satellite antenna, until I found a crossed Yagi antenna at a Ham Swap for a
price I couldn't pass up. Still have the Quagi, just in case.
Greg KO6TH
> Date: Tue, 12 Jul 2011 01:38:17 +0000
> From: kq6ea@xxxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
>
> A "Helicoil" is a threaded insert used to repair stripped threads.
>
> I think you're asking about a HELICAL antenna.
>
> They work very well, and are easy to build. They're very forgiving in
> construction errors, but have a few pitfalls you want to watch out for.
>
> You do NOT want to wind one on PVC pipe for a support, as the dielectric
> constant of the PVC will throw off the antenna from the design numbers
> you use to wind the "coil".
>
> This type of helical is called an "Axial Mode" antenna. A "Normal Mode"
> helical is how a rubber duck is made, and is not what you want.
>
> The ARRL Antenna Handbook has several designs that work well, and
> there's a TON of information on the Web about building an "Axial Mode
> Helical Antenna".
>
> They're fixed polarization, determined when you wind it, and the only
> way to switch between left-hand and right-hand is to have another
> antenna, and switch to it.
>
> I've built several, and they work pretty well. They get pretty big at 2
> Meters, but are manageable (at least for me!) at 70cm and up.
>
> 73, Jim KQ6EA
_______________
> > 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-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-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
__________ Information from ESET NOD32 Antivirus, version of virus signature
database 6285 (20110711) __________
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http://www.eset.com
------------------------------
Message: 14
Date: Tue, 12 Jul 2011 04:33:40 +0000
From: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Subject: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
To: Clint Bradford <clintbradford@xxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <4E1BCEA4.6060104@xxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
It's in the wrong band for ham use.
But then you knew that didn't you.....;-)
On 07/12/2011 04:23 AM, Clint Bradford wrote:
> I am looking for an adapter to make this satellite helical work on my
handheld radio ...
>
> http://tinyurl.com/SAT-HELICAL
>
>
> Clint Bradford, K6LCS
>
>
>
>
>
> _______________________________________________
> 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: 15
Date: Mon, 11 Jul 2011 21:36:00 -0700
From: Clint Bradford <clintbradford@xxx.xxx>
Subject: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
To: Jim Jerzycke <kq6ea@xxxxxxx.xxx>
Cc: AMSAT BB <amsat-bb@xxxxx.xxx>
Message-ID: <5ACBDAD0-1827-4AEE-B182-F09B8014E483@xxx.xxx>
Content-Type: text/plain; CHARSET=US-ASCII
Twas just a joke ... But YOU knew that ... (grin)
There is an amazing gentleman out in the Palm Desert area ... met him at the
Palm Springs HamFest earlier this year. He fabricates some beautiful 2M
Yagis for sat work.
But they're only about $100 ...
Clint
------------------------------
Message: 16
Date: Tue, 12 Jul 2011 05:13:57 +0000 (UTC)
1310447637211.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
Hello Kevin-I have built a few of these antennas over the years.? Mostly for
1.2ghz RHCP tx and 2.4ghz LHCP rx for a dish feed.? As mentioned the
polarization is fixed.? The helix antenna is pretty? broad? banded.? I never
built one for 70cm or 2m however I have been tempted.? Here it comes....Our
next HEO will most certainly have L & S band capability.?? I can only hope
I?will last that long.? If you want some pics I have many.? Yeah they do
look cool.
73 Bob W7LRD
Seattle
----- Original Message -----
From: "Kevin Deane" <summit496@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Sent: Monday, July 11, 2011 5:39:25 PM
Subject: [amsat-bb] ?70cm Helicoil Good/Bad expensive?
Hello all, whats the take on these antennas? I am sure someone on here has
used them and they certainly look cool but how do they perform?
?
Dont you have to switch polerization on a cross polerized yagi?
?
I know there is not a perfect antenna, just wondering about the Helicoil...
Kevin
KF7MYK
????????????????? ???????? ? ???????????????? ?
_______________________________________________
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
---------ead I built a helix for that
band and did some L/S and L/U through AO-51. Then I found a commercial long
boom 1.2 ghz yagi at another Ham Swap (gotta keep me away from those!), and
replaced the Helix. But, you know, I don't think the new antenna improved
things. Mechanically, yes, but not RF. The Beacon off to the West is about
the same on either one.
Given the lack of S-band on the current birds, I was thinking about taking
down the Grill for a while, just to lighten the load on the rotor motors.
Maybe put up a Wi-Fi flat panel, just to keep the band open. But if I can
get both 1.2 and 2.4 out of the Grill instead, might that be better?
Greg KO6TH
> From: kc6uqh@xxx.xxx
> To: ko6th_greg@xxxxxxx.xxxx amsat-bb@xxxxx.xxx
> Subject: RE: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
> Date: Mon, 11 Jul 2011 21:26:17 -0700
>
> Greg,
> Do not overlook the 2.4 GHz grid dishes. I have successfully added a quad
> loop for 23 cm (1.2GHz) and have been pleasantly surprised with the
> performance. I have used one for transmit on 2.4 and receive on 1.2 for ATV
> work. A single dish with two microwave bands.
>
> Art,
> KC6UQH
>
------------------------------
Message: 18
Date: Tue, 12 Jul 2011 07:36:22 -0500
From: "H. Vordenbaum" <tower2@xxx.xx.xxx>
Subject: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
To: "Greg D." <ko6th_greg@xxxxxxx.xxx>, <kc6uqh@xxx.xxx>,
<amsat-bb@xxxxx.xxx>
Message-ID: <39A8B8EC2CD44978A7D2A5E64E1A58B8@xxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Maybe he was thinking of one of these..........
http://va6bc.no-ip.com/jerry_pix/Quadrifilar-helix/quadrifilar_helix_antenna.h
tm
http://www.dxzone.com/dx23282/quadrifilar-helix-antenna.html
73, Harvey
K5HV
----- Original Message -----
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
To: <kc6uqh@xxx.xxx>; <amsat-bb@xxxxx.xxx>
Sent: Tuesday, July 12, 2011 0:51 AM
Subject: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
>
> Hi Art,
>
> I've got a BBQ Grill too, but used a 3 1/4 turn helix for a feed. I was
> able to work AO-40 at apogee with it. Definitely a nice system.
>
> How big is your dish? I've not seen a Grill antenna much bigger than the
> one I currently have, and I'm told it's not big enough for 1.2 ghz (only
> 30"). Supposed to need at least 4'. So instead I built a helix for that
> band and did some L/S and L/U through AO-51. Then I found a commercial
> long boom 1.2 ghz yagi at another Ham Swap (gotta keep me away from
> those!), and replaced the Helix. But, you know, I don't think the new
> antenna improved things. Mechanically, yes, but not RF. The Beacon off
> to the West is about the same on either one.
>
> Given the lack of S-band on the current birds, I was thinking about taking
> down the Grill for a while, just to lighten the load on the rotor motors.
> Maybe put up a Wi-Fi flat panel, just to keep the band open. But if I can
> get both 1.2 and 2.4 out of the Grill instead, might that be better?
>
> Greg KO6TH
>
>
>> From: kc6uqh@xxx.xxx
>> To: ko6th_greg@xxxxxxx.xxxx amsat-bb@xxxxx.xxx
>> Subject: RE: [amsat-bb] Re: 70cm Helicoil Good/Bad expensive?
>> Date: Mon, 11 Jul 2011 21:26:17 -0700
>>
>> Greg,
>> Do not overlook the 2.4 GHz grid dishes. I have successfully added a quad
>> loop for 23 cm (1.2GHz) and have been pleasantly surprised with the
>> performance. I have used one for transmit on 2.4 and receive on 1.2 for
>> ATV
>> work. A single dish with two microwave bands.
>>
>> Art,
>> KC6UQH
>>
>
>
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End of AMSAT-BB Digest, Vol 6, Issue 377
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