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CX2SA > SATDIG 08.11.11 08:59l 822 Lines 23779 Bytes #999 (0) @ WW
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Sent: 111108/0654Z @:CX2SA.LAV.URY.SA #:37202 [Minas] FBB7.00e $:AMSATBB6618
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Trivia Question (Wyatt Dirks)
2. Re: Trivia Question (John Geiger)
3. Re: Kenwood TR9500 (Clint Bradford)
4. Re: Trivia Question (Lee Maisel)
5. Re: Kenwood TR9500 (Andrew Glasbrenner)
6. Re: Kenwood TR9500 (Andrew Glasbrenner)
7. Re: Trivia Question (Jeffrey Koehler)
8. Re: Trivia Question (John Geiger)
9. Re: Trivia Question (Dave Guimont)
10. Symposium Photos (G. Gould Smith)
11. Etching a KLM RHCP/LHCP PCB (WILLIAMS MICHAEL)
12. Re: Etching a KLM RHCP/LHCP PCB (Ted)
13. Re: Etching a KLM RHCP/LHCP PCB (i8cvs)
14. WebSDR (Kevin Deane)
15. Re: Trivia Question (Art McBride)
16. Great Symposium (James Luhn)
17. Re: Etching a KLM RHCP/LHCP PCB (Greg D.)
18. Re: ESA lunar probe (Lee Maisel)
19. Re: Etching a KLM RHCP/LHCP PCB (Jari Koivurinne)
----------------------------------------------------------------------
Message: 1
Date: Mon, 7 Nov 2011 14:14:22 -0600
From: Wyatt Dirks <wyattdirks@xxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Trivia Question
Message-ID: <BAY151-W29C4BFAD7A7C121C7EFDA1CDD90@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
If you on standing on the north/south pole how many grid squares are you in?
73 Wyatt AC0RA
------------------------------
Message: 2
Date: Mon, 7 Nov 2011 14:16:28 -0600
From: John Geiger <aa5jg@xxxxxxx.xxx>
To: Wyatt Dirks <wyattdirks@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Trivia Question
Message-ID:
<CAFq43LZWJfYmcNK+SmfiSCu8y5mOhWjVcNwXg=-Ym6ziBfWS4A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
180
On Mon, Nov 7, 2011 at 2:14 PM, Wyatt Dirks <wyattdirks@xxx.xxx> wrote:
>
> If you on standing on the north/south pole how many grid squares are you
> in?
>
> 73 Wyatt AC0RA
>
>
>
> _______________________________________________
> 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, 7 Nov 2011 12:15:21 -0800
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Kenwood TR9500
Message-ID: <39B74929-3FBC-4758-A731-440FF32B169A@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
A quick Google search of "kenwood TR9500 satellites" came up with several
citations of hams using that rig successfully on the birds!
Clint, K6LCS
>> ... Has anyone used a Kenwood TR9500 70cm all mode on the satellites?
------------------------------
Message: 4
Date: Mon, 07 Nov 2011 13:20:23 -0700
From: Lee Maisel <maisel@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Trivia Question
Message-ID: <20111107132023.94603y4uxk2k5sw7@xxxxxxx.xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; DelSp="Yes";
format="flowed"
Holy cow! A lot I suppose!
Quoting Wyatt Dirks <wyattdirks@xxx.xxx>:
>
> If you on standing on the north/south pole how many grid squares are you in?
>
> 73 Wyatt AC0RA
>
>
>
> _______________________________________________
> 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: 5
Date: Mon, 7 Nov 2011 15:21:30 -0500 (GMT-05:00)
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: John Geiger <aa5jg@xxxxxxx.xxx>, AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Kenwood TR9500
Message-ID:
<29230441.1320697291407.JavaMail.root@xxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
No CAT control, and 430-440 only if I recall, but worked fine for me
portable with an FT-100 in Denmark several years ago.
73, Drew KO4MA
-----Original Message-----
>From: John Geiger <aa5jg@xxxxxxx.xxx>
>Sent: Nov 7, 2011 2:50 PM
>To: AMSAT-BB <amsat-bb@xxxxx.xxx>
>Subject: [amsat-bb] Kenwood TR9500
>
>Has anyone used a Kenwood TR9500 70cm all mode on the satellites? I have
>found one for sale at a decent price, and am wondering how it would do in a
>satellite station-coupled with an Icom 706 original.
>
>73s John AA5JG
>_______________________________________________
>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: 6
Date: Mon, 7 Nov 2011 15:34:28 -0500 (GMT-05:00)
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: John Geiger <aa5jg@xxxxxxx.xxx>, AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Kenwood TR9500
Message-ID:
<28274511.1320698068974.JavaMail.root@xxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
No CAT control, and 430-440 only if I recall, but worked fine for me
portable with an FT-100 in Denmark several years ago.
73, Drew KO4MA
-----Original Message-----
>From: John Geiger <aa5jg@xxxxxxx.xxx>
>Sent: Nov 7, 2011 2:50 PM
>To: AMSAT-BB <amsat-bb@xxxxx.xxx>
>Subject: [amsat-bb] Kenwood TR9500
>
>Has anyone used a Kenwood TR9500 70cm all mode on the satellites? I have
>found one for sale at a decent price, and am wondering how it would do in a
>satellite station-coupled with an Icom 706 original.
>
>73s John AA5JG
>_______________________________________________
>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: 7
Date: Mon, 7 Nov 2011 13:13:52 -0800 (PST)
From: Jeffrey Koehler <jeffk13057@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>, "wyattdirks@xxx.xxxx
<wyattdirks@xxx.xxx>
Subject: [amsat-bb] Re: Trivia Question
Message-ID:
<1320700432.61888.androidMobile@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Zero. You're not in any ( I think )
73. Jeff WB2SYK
------------------------------
Message: 8
Date: Mon, 7 Nov 2011 15:34:28 -0600
From: John Geiger <aa5jg@xxxxxxx.xxx>
To: Wyatt Dirks <wyattdirks@xxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Trivia Question
Message-ID:
<CAFq43LZp5yJBNJAKMUxNe89C=U9wJ0wfLQxMHV-YvRjCWPXz=w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
There would be 360 degrees of longitude there, and each grid square is 2
degrees wide.
73s John AA5JG
On Mon, Nov 7, 2011 at 2:19 PM, Wyatt Dirks <wyattdirks@xxx.xxx> wrote:
> thats what i thought but try and find some proof other then manually
> doing the math
>
> ------------------------------
> Date: Mon, 7 Nov 2011 14:16:28 -0600
> Subject: Re: [amsat-bb] Trivia Question
> From: aa5jg@xxxxxxx.xxx
> To: wyattdirks@xxx.xxx
> CC: amsat-bb@xxxxx.xxx
>
> 180
>
>
>
> On Mon, Nov 7, 2011 at 2:14 PM, Wyatt Dirks <wyattdirks@xxx.xxx> wrote:
>
>
> If you on standing on the north/south pole how many grid squares are you
> in?
>
> 73 Wyatt AC0RA
>
>
>
> _______________________________________________
> 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: 9
Date: Mon, 07 Nov 2011 13:37:17 -0800
From: Dave Guimont <dguimon1@xxx.xx.xxx>
To: Jeffrey Koehler <jeffk13057@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Trivia Question
Message-ID: <E6.FA.16605.E8F48BE4@xxxxxxxxxxxxx.xxxx.xx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
18 (I THINK)
At 01:35 PM 11/7/2011, you wrote:
>Zero. You're not in any ( I think )
>
>73. Jeff WB2SYK
>
>_______________________________________________
73, Dave, WB6LLO
dguimon1@xxx.xx.xxx
Disagree: I learn....
Pulling for P3E...
------------------------------
Message: 10
Date: Mon, 7 Nov 2011 14:54:32 -0800 (PST)
From: "G. Gould Smith" <gouldsmi@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Symposium Photos
Message-ID:
<1320706472.63132.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
I am writing an article for the Journal about the 2011 Symposium.
?
Please email me any photos or links to your online image storage to include
in the article.
?
Thanks,
Gould, WA4SXM
------------------------------
Message: 11
Date: Mon, 7 Nov 2011 15:08:57 -0800 (PST)
From: WILLIAMS MICHAEL <k9qho6762@xxxxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Etching a KLM RHCP/LHCP PCB
Message-ID:
<1320707337.34105.YahooMailClassic@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I've completed and etched one side#1 of the PCB with Press and Peel.
Side#2 needs to be etched. the artwork is very basic and can be completed by
hand and Rub-On Etch Resist. I had to drill 8 alignment holes to help line
up the artwork to each side.
Question #1:
I don't want the etching solution to leach through the holes. I had some
donuts to cover the holes, but they are so old that the glue is no good. Is
there anything that can temporarily fill or cover the holes until side #2 is
completed?
Question #2:
Has anyone used clear packing tape to cover the areas where the copper is
to be protected or will the etching solution just eat it up with the copper?
You have to admit this isn't a typical AMSAT-BB question. In projects before
this, I just used side #2 as the ground plane.
73,
Mike (K9QHO)
------------------------------
Message: 12
Date: Mon, 7 Nov 2011 16:02:34 -0800
From: "Ted" <k7trkradio@xxxxxxx.xxx>
To: "'WILLIAMS MICHAEL'" <k9qho6762@xxxxxxxxx.xxx>,
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Etching a KLM RHCP/LHCP PCB
Message-ID: <68FF9DB7CA394D30AE85DD92B0A100F6@xxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"
How about plain old clay? Toy store should have it
Along the same line, smooth peanut butter?
K7TRK
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of WILLIAMS MICHAEL
Sent: Monday, November 07, 2011 3:09 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Etching a KLM RHCP/LHCP PCB
I've completed and etched one side#1 of the PCB with Press and Peel.
Side#2 needs to be etched. the artwork is very basic and can be completed by
hand and Rub-On Etch Resist. I had to drill 8 alignment holes to help line
up the artwork to each side.
Question #1:
I don't want the etching solution to leach through the holes. I had some
donuts to cover the holes, but they are so old that the glue is no good. Is
there anything that can temporarily fill or cover the holes until side #2 is
completed?
Question #2:
Has anyone used clear packing tape to cover the areas where the copper is
to be protected or will the etching solution just eat it up with the copper?
You have to admit this isn't a typical AMSAT-BB question. In projects before
this, I just used side #2 as the ground plane.
73,
Mike (K9QHO)
_______________________________________________
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: 13
Date: Tue, 8 Nov 2011 02:51:31 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "WILLIAMS MICHAEL" <k9qho6762@xxxxxxxxx.xxx>, "AMSAT-BB"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Etching a KLM RHCP/LHCP PCB
Message-ID: <001a01cc9db8$f04811a0$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
----- Original Message -----
From: "WILLIAMS MICHAEL" <k9qho6762@xxxxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Tuesday, November 08, 2011 12:08 AM
Subject: [amsat-bb] Etching a KLM RHCP/LHCP PCB
Hi Mike, K9QHO
> I've completed and etched one side#1 of the PCB with Press and Peel.
OK,
>
> Side#2 needs to be etched. the artwork is very basic and can be completed
> by hand and Rub-On Etch Resist. I had to drill 8 alignment holes to help
> line up the artwork to each side.
OK, but remember that you have to drill 9 alignment holes only to solder
the relay and that all holes on PCB must be inside metallized.
>
> Question #1:
> I don't want the etching solution to leach through the holes. I had some
> donuts to cover the holes, but they are so old that the glue is no good.
> Is there anything that can temporarily fill or cover the holes until side
> #2 is completed?
Mike, I would temporarily fill the holes using a two component epoxy
adesive that become very hard when it dry so that the etching solution
cannot leach through the holes.
A suitable two component epoxy adesive is called UHU-PLUS
http://www.stirlingshop.de/UHU-Plus-Epoxy-Adhesive-Endfest-300
As soon side #1 and #2 are etched by the acid soluction it is necessary
to drill again the holes to remove the epoxy adesive but remember that
all 9 holes must be metallized inside so that you must fit a hollow rivet
into each hole and than solder it to both side #1 and #2 of PCB
The holes metallization is very important because othervise you cannot
properly solder the relay pins on both sides of the PCB
When soldering the relay pins do not use too much heat with a high
power soldering iron because the relay pins are not copper but steel
that becames immediately oxidated at high temperature.
>
> Question #2:
> Has anyone used clear packing tape to cover the areas where the copper
> is to be protected or will the etching solution just eat it up with the
> copper?
In my opinion the etching solution just will eat it up with the copper.
>
> You have to admit this isn't a typical AMSAT-BB question. In projects
> before this, I just used side #2 as the ground plane.
>
In my opinion you have place good usefull questions to AMSAT-BB
Don't forget that you must protect the PCB and relay from the water so
that in a separate email I have sent to you a set of pictures to show you
how I have solved the problem,
> 73,
>
> Mike (K9QHO)
>
73" de
i8CVS Domenico
------------------------------
Message: 14
Date: Mon, 7 Nov 2011 19:53:34 -0800
From: Kevin Deane <summit496@xxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] WebSDR
Message-ID: <COL107-W5C3DB917A3E3718F97E8883DE0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Wondering if anyone knew of any other listening stations like the ones here:
http://www.websdr.org/
Actually pretty nice signal check when no ones around.
Kevin
KF7MYK
------------------------------
Message: 15
Date: Mon, 7 Nov 2011 20:19:55 -0800
From: "Art McBride" <kc6uqh@xxx.xxx>
To: "'Wyatt Dirks'" <wyattdirks@xxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Trivia Question
Message-ID: <2A718B165CF0471F986F18B6C1A12359@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Wyatt,
I would say 180. Another question at what North or South latitude is a grid
square, square?
Art,
KC6UQH
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Wyatt Dirks
Sent: Monday, November 07, 2011 12:14 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Trivia Question
If you on standing on the north/south pole how many grid squares are you in?
73 Wyatt AC0RA
_______________________________________________
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 6606 (20111106) __________
The message was checked by ESET NOD32 Antivirus.
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__________ Information from ESET NOD32 Antivirus, version of virus signature
database 6609 (20111107) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
------------------------------
Message: 16
Date: Mon, 7 Nov 2011 22:26:05 -0600
From: James Luhn <luhn@xx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Great Symposium
Message-ID: <FDDDC66F-76C6-485A-B05B-260BCA9C3D8C@xx.xxx>
Content-Type: text/plain; charset=us-ascii
I would like to thank all involved with the AMSAT Symposium. I had a great
time! It was fun meeting new friends. The presentation by Lance at the
banquet was fabulous and so interesting. It was a great educational weekend
for me.
Thank you!
73,
-james
W5AOO
------------------------------
Message: 17
Date: Mon, 7 Nov 2011 21:21:16 -0800
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
To: <k9qho6762@xxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Etching a KLM RHCP/LHCP PCB
Message-ID: <BLU133-W295720BB22A023869C8D68A9DE0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
My first thought is to use candle wax, as long as your etching solution is
used cold. Warm the board up and coat the one side and holes, let it cool,
and then do your thing on the other side. I've made simple single-sided
boards in the past by using a toothpick to scrape away a line between what
becomes very wide "traces". Saves a lot on etchant too, since you end up
removing very little copper.
The wax comes off easily with a paper towel and a little heat.
Greg KO6TH
> Date: Mon, 7 Nov 2011 15:08:57 -0800
> From: k9qho6762@xxxxxxxxx.xxx
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Etching a KLM RHCP/LHCP PCB
>
> I've completed and etched one side#1 of the PCB with Press and Peel.
>
> Side#2 needs to be etched. the artwork is very basic and can be completed
by hand and Rub-On Etch Resist. I had to drill 8 alignment holes to help
line up the artwork to each side.
>
> Question #1:
> I don't want the etching solution to leach through the holes. I had some
donuts to cover the holes, but they are so old that the glue is no good. Is
there anything that can temporarily fill or cover the holes until side #2 is
completed?
>
> Question #2:
> Has anyone used clear packing tape to cover the areas where the copper is
to be protected or will the etching solution just eat it up with the copper?
>
> You have to admit this isn't a typical AMSAT-BB question. In projects
before this, I just used side #2 as the ground plane.
>
> 73,
>
> Mike (K9QHO)
>
>
>
>
> _______________________________________________
> 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: 18
Date: Mon, 7 Nov 2011 23:28:11 -0700
From: Lee Maisel <maisel@xxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: ESA lunar probe
Message-ID: <FB098E90-0C4B-437B-960B-D0C165EDB1EA@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
I don't see why Hams couldn't be involved in the design of the
communications for the probe...
On Nov 5, 2011, at 11:11 AM, R Oler <orbitjet@xxxxxxx.xxx> wrote:
>
> I wrote: (and the time delay makes it well a unique form of
transportation)..transportation should obviously be "communication".
>
> the reality of a lunar transponder (or even a packet system) would be that
it would encourage a lot of things that the FM sats do not...and discourage
a lot of bad things...it wont happen I know because of a lot of
reasons...but it would change our hobby and the satellite part of it for the
better. RGO WB5MZO life member AMSAT ARRL NARS
>
> sent from my IPAD
>
> From: orbitjet@xxxxxxx.xxx
> To: w7lrd@xxxxxxx.xxx
> CC: amsat-bb@xxxxx.xxx
> Subject: RE: [amsat-bb] ESA lunar probe
> Date: Sat, 5 Nov 2011 10:59:48 -0500
>
>
>
>
>
>
>
>
> Bob...its been done here a zillion times...it wont be done with an HT and
a small yagi...it will however be possible whereas a "Mars" effort is really
not possible for anyone except "Goldstone class" stations (and the time
delay makes it well a unique form of transportation). A small linear
transponder with some horizon omni gain antennas would be a challenge, but
it would be easier then moonbounce Robert G. Oler WB5MZO life member AMSAT
ARRL NARS
>
> Date: Sat, 5 Nov 2011 06:54:32 +0000
> From: w7lrd@xxxxxxx.xxx
> To: orbitjet@xxxxxxx.xxx
> CC: amsat-bb@xxxxx.xxx
> Subject: Re: [amsat-bb] ESA lunar probe
>
>
>
> Just for the sake of conversation and thinking. What would the link
budget look like for a transponder on the moon.
>
> Bob W7LRD
>
>
>
>
>
>
>
>
> From: "R Oler" <orbitjet@xxxxxxx.xxx>
> To: "Amsat BB" <amsat-bb@xxxxx.xxx>
> Sent: Friday, November 4, 2011 4:10:00 PM
> Subject: [amsat-bb] ESA lunar probe
>
>
> http://www.bbc.co.uk/news/science-environment-15574653
>
> to bad there cant be an amateur radio payload even a really small
one...this probe should be "longer lived" then most as it should have a
constant energy source...
>
> Wonder why the Europeans are thinking of sending Phase 5A to Mars? It
will probably never fly and almost no hams can be a part of that...so well
why not send it to L2 in the Earth Moon systems...a halo orbit...
>
> Robert G. Oler WB5MZO Life Member AMSAT ARRL NARS
>
> _______________________________________________
> 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
------------------------------
Message: 19
Date: Tue, 8 Nov 2011 08:51:00 +0200
From: "Jari Koivurinne" <jari.koivurinne@xxxx.xxx>
To: "WILLIAMS MICHAEL" <k9qho6762@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Etching a KLM RHCP/LHCP PCB
Message-ID:
<710264f1e211fd9b3bfba180234a3c31.squirrel@xxxxxxx.xxxx.xxx>
Content-Type: text/plain;charset=iso-8859-1
> I've completed and etched one side#1 of the PCB with Press and Peel.
>
> Side#2 needs to be etched. the artwork is very basic and can be completed by
> hand and Rub-On Etch Resist. I had to drill 8 alignment holes to help line
up
> the artwork to each side.
>
> Question #1:
> I don't want the etching solution to leach through the holes. I had some
> donuts to cover the holes, but they are so old that the glue is no good. Is
> there anything that can temporarily fill or cover the holes until side #2 is
> completed?
>
> Question #2:
> Has anyone used clear packing tape to cover the areas where the copper is
to
> be protected or will the etching solution just eat it up with the copper?
>
Hello! I have used contact paper, ie "sticky-backed plastic" for protection.
It will resist even Hydroclorid acid/hydrogen peroxide etching mixture.
Just press the edges carefully.
-jari oh3uw
> You have to admit this isn't a typical AMSAT-BB question. In projects before
> this, I just used side #2 as the ground plane.
>
> 73,
>
> Mike (K9QHO)
>
>
>
------------------------------
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End of AMSAT-BB Digest, Vol 6, Issue 618
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