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CX2SA > SATDIG 25.04.09 01:53l 549 Lines 16953 Bytes #999 (0) @ WW
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Today's Topics:
1. AG-35 smoke test (Yokshs)
2. Re: FT736 Problem (Jim Walls)
3. Re: FLTSATCOM Hacked (Daniel Schultz)
4. Re: FLTSATCOM Hacked (Bruce)
5. Testing GS-5500 (Dave)
6. Thank you for answering my questions re: TS-2000X performance
on 23cm band - ? (Wayne Splawn)
7. Re: Cross Boom (Roy)
8. Fiber Glass Croos Boom (Antonio Santiago)
9. Re: FLTSATCOM Hacked (Alan Sieg WB5RMG)
10. ANUSAT heard (Mineo Wakita)
11. Re: ANUSAT heard (Mineo Wakita)
12. AO-51 U/S (w7lrd@xxxxxxx.xxxx
13. Re: FLTSATCOM Hacked (Mark Spencer)
----------------------------------------------------------------------
Message: 1
Date: Thu, 23 Apr 2009 20:45:40 -0600
From: "Yokshs" <yokshs@xxxxxxxxx.xxx>
Subject: [amsat-bb] AG-35 smoke test
To: "Amsat BB" <amsat-bb@xxxxx.xxx>
Message-ID: <0CD166CE3BF94D2B91D05ECD6D2CCCBC@xxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Luc,
Thanks for the reply.
Did you have to remove the relay to replace the FET? Just curious. I've got
my AG-35 down off the tower and on the bench now. The FET is so close
to one of the relays, I'm pretty sure it'll have to be removed to replace
the FET.. Any suggestions?
Thanks,
Kyle
K0KN
--- Original Message ---
I fried my UHF one too...I order a couple from ICOM. With my very limited
electronics building skills i cut the dead one leaving as much
legs as possible and i resolder the replacement over the cut legs. Not
elegant but quick and effective. Is this is achieving the same
overall previous gain figures? that i don't know but it works.
I have another one to replace in a different type of preamp but the FET is
below a lot of other components and he's flat mounted (No legs)
i don't come up with a solution with this one?
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 2
Date: Thu, 23 Apr 2009 19:28:38 -0700
From: Jim Walls <jim@xxxxx.xxx>
Subject: [amsat-bb] Re: FT736 Problem
To: Amsat-BB <amsat-bb@xxxxx.xxx>
Message-ID: <49F123D6.5000207@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Kevin Phx Az wrote:
> I did the reset but has not fixed my problem.
>
> When I press the F button to set the Rpt up/down it does not change
> it from simplex and 01 comes up in the display to the right of the vfo
> frequency displayed as if I had pressed the MR button.
> Any suggestions?
>
Yep, that's what it does. After pressing the F button, press the
appropriate mode button to change what you want. Just tried it on my
736 and that's what it does.
--
73
-------------------------------------
Jim Walls - K6CCC
jim@xxxxx.xxx
Ofc: 818-548-4804
http://home.earthlink.net/~k6ccc
AMSAT Member 32537 - WSWSS Member 395
------------------------------
Message: 3
Date: Thu, 23 Apr 2009 22:36:52 -0400
From: "Daniel Schultz" <n8fgv@xxx.xxx>
Subject: [amsat-bb] Re: FLTSATCOM Hacked
To: <amsat-bb@xxxxx.xxx>
Message-ID: <551NDXcj14310S03.1240540612@xxxxxxxx.xxx.xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Mark Spencer wrote
>Kind of makes you wonder what would happen if there was a geo stationary
>amateur satellite that was easy to use.?? If pirates will hack military
>satellites then I doubt they would have any qualms about using an
>amateur satellite.??
Mark's original point is still a valid one and has not been addressed yet in
this discussion. An amateur-built bent pipe transponder in geosynchronous
orbit will be vulnerable to the same sort of unlicensed abuse that FLTSATCOM
is experiencing, and we amateurs will not have the same ability to prosecute
the offenders that the US military has. If we build such a system, how exactly
do we protect it from this sort of abuse?
Dan Schultz N8FGV
------------------------------
Message: 4
Date: Thu, 23 Apr 2009 21:44:30 -0500
From: Bruce <kk5do@xxxxx.xxx>
Subject: [amsat-bb] Re: FLTSATCOM Hacked
To: Daniel Schultz <n8fgv@xxx.xxx>
Cc: "<amsat-bb@xxxxx.xxx>" <amsat-bb@xxxxx.xxx>
Message-ID: <C1232AB9-16B9-4437-A52D-9FB65FACA04B@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii; format=flowed; delsp=yes
our amateur radio satellites have already been hijacked and there was
nothing we could do. those cber's with modified radios, the over
powered portable phones, and the taxis south of the border.
73...bruce
Sent from my iPhone
On Apr 23, 2009, at 9:36 PM, "Daniel Schultz" <n8fgv@xxx.xxx> wrote:
------------------------------
Message: 5
Date: Thu, 23 Apr 2009 20:54:00 -0600
From: "Dave" <dave@xxxxxx.xxx>
Subject: [amsat-bb] Testing GS-5500
To: <AMSAT-BB@xxxxx.xxx>
Message-ID: <EF2A1D4D072E442DA084AEBB1F1DB3BD@xxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"
Does anyone have a test program for a GS-232A to G-5500 rotor system that
will test rotate and elevate it from max to max? I just got a new unit and
want to test it before I get it up in the air :-)
Dave // DM78qd // KA0SWT
+++++++++++++++++++++++++++++++++++++
------------------------------
Message: 6
Date: Thu, 23 Apr 2009 20:08:07 -0700
From: "Wayne Splawn" <wsplawn@xxxxxxxx.xxx.xxx>
Subject: [amsat-bb] Thank you for answering my questions re: TS-2000X
performance on 23cm band - ?
To: <amsat-bb@xxxxx.xxx>
Message-ID: <7D613332C4EF479EBD8E4C6CEB2E5744@xxxxx>
Content-Type: text/plain; charset="us-ascii"
I want to thank everyone who replied to my questions regarding the TS-2000x.
All responses were very helpful. TS-2000x owners seem to be a very
satisfied owners.
Tnx & 73's
Wayne WA7NE
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Perry Yantis
Sent: Thursday, April 23, 2009 9:37 AM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] TS-2000X performance on 23cm band - ?
I have one of the early ts200x's and I have had no problems on 1.2 ghz.
I mainly us it for the satellites but also use it for the vhf contests and
it has always worked fine.
I have consistantly worked many in Ohio on 1.2 ghz with just a M2 at about
30 ft.
I have also heard some others outside of Ohio during band openings (rare but
it does happen).;
I don't know where you got this idea that the receive was bad on these rigs.
The radio does have a built in preamp.
I leave it turned OFF for hf because it makes too much noise.
I leave it ON for vhf, and uhf because it does improve the ssb signals.
On 1.2 the preamp is ALWAYS on.
Perry WB8OTH
_______________________________________________
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!
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------------------------------
Message: 7
Date: Fri, 24 Apr 2009 05:17:30 +0000
From: Roy <rdwelch@xxxxxx.xxx>
Subject: [amsat-bb] Re: Cross Boom
To: amsat-bb@xxxxx.xxx
Message-ID: <49F14B6A.4030708@xxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
It seems that this subject comes up once or twice every decade. I have
never used anything but a metal cross boom since I joined AMSAT in
1974. Later there were some tests run by Kent Britain, WA5VJB. His
measurements resulted in the following recommendations:
1. Mount the antenna with the tips of the elements as far from the
support boom as possible. Instead of mounting them in a + form, mount
them as an X in relation to the cross boom.
2. Saw off any excess cross boom so that it doesn't extend past the
antenna boom.
3. Avoid mounting the boom 1/2 or 1 wavelength from the driven
elements. (I would modify that to multiples of 1/2 wavelength)
4. Run the coax out the metal boom and down the antenna boom. Keep the
turning radius of the coax small but not to the extent of damage to the
coax.
I have never detected any bad effects of this arrangement and had
stumbled into this configuration years before Kent published his
findings in the 1993 AMSAT Symposuim Proceedings. I did it to avoid
having the coax from hanging off the rear of the antennas and dragging
on the roof of my house and changing fore/aft balance with ice loads.
Incidentally, I think I recall that Jim, G3RUH was also using this
method. If anyone wants a photo of the antenna setup and contacts me
directly I will send it to him.
Roy -- W0SL
AMSAT 410
------------------------------
Message: 8
Date: Thu, 23 Apr 2009 16:55:09 -0700 (PDT)
From: Antonio Santiago <kp4ia@xxxxx.xxx>
Subject: [amsat-bb] Fiber Glass Croos Boom
To: AMSAT-BB@xxxxx.xxx
Message-ID: <771589.77348.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Greetings to all from Puerto Rico...!
?
You can get the fiberglas croos boom from?M2.
?
M2's Heavy Duty Fiberglass Cross Boom has been developed to work with the
Yaesu G-550 Elevation Unit or G-5500 AZ /EL Unit. It allows solid clamping to
the Cross Boom without crushing thin wall fiberglass tubes. The unit consists
of a center solid 18" aluminum rod and (2) 2" x 1/4" wall x 60" long
fiberglass tubes. The solid aluminum rod and thick wall fiberglass tube will
give you the ability to secure large systems or arrays for years of solid slip
free service. *Total length of unit when assembled is 11' or 132".
?
Visit the following link:
?
http://www.m2inc.com/
?
Then select HAM RADIO PRODUCTS
In the next page select Rotators and accesories,?next look the directory on
the right
Positioners and Accessories,??look at the bottom,? select the HD Fiberglass
Boom Kit
?
73's
Tony-KP4IA
------------------------------
Message: 9
Date: Fri, 24 Apr 2009 06:36:37 -0500 (CDT)
From: "Alan Sieg WB5RMG" <wb5rmg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: FLTSATCOM Hacked
To: amsat-bb@xxxxx.xxx
Message-ID: <1704.192.168.121.31.1240572997.squirrel@xxx.xxx.xxx.xx>
Content-Type: text/plain;charset=iso-8859-1
Dan N8FGV said
> Mark's original point is still a valid one and has not been addressed...
> An amateur-built bent pipe transponder in geosynchronous...
> orbit will be vulnerable to the same sort of unlicensed abuse...
> how exactly do we protect it from this sort of abuse?
This may have been worked to death, but the discussion quickly changed
to '-wish we had a GEO-', then came back around to '-how do we protect-'.
It's not like we are gonna arrive quickly at a perfect solution.
It has always seemed to me that some of the best protection we have had,
is in the simple fact that a moving target is less likely to be of value
or interest to pirates. Our feeble low-powered, fast-moving, doppler-
shifting transponders are not very attractive targets for freeloaders.
Just like internet hackers, they are not interested in a 386 w/4MB ram.
Something like an antique Navy GEO with lots of power is an easy mark.
I'm not suggesting we only deploy obscure low-power LEO birds, but the
higher we push the frequencies, and stay in motion, the less attention
we attract. As much convenience as GEO offers, it would also bring a
following of pirates. A GTO like AO-13 that requires at least scheduled
pointing, would likely not be seen as such an easy mark. A small flock
of APRS birds like BobB mentions would probably not appear of much
interest to pirates either.
No easy answers, but maybe we can avoid making it too easy to hijack.
Thanks /;^)
--
<- Licensed in 1976, WB5RMG = Alan Sieg * AMSAT#20554 ->
<- http://www.somenet.net * http://wb5rmg.somenet.net ->
<- http://www.linkedin.com/in/alansieg * My 'Day Job' ->
------------------------------
Message: 10
Date: Sat, 25 Apr 2009 00:20:36 +0900
From: Mineo Wakita <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] ANUSAT heard
To: amsat-bb@xxxxx.xxx
Message-ID: <30C9C4F0380594ei7m-wkt@xxxxxxxxx.xx.xx>
Content-Type: text/plain; charset=us-ascii
I heard and saved ANUSAT carrier wave (2.8MB).
This is a very very weak signal with a doppler.
ANUSAT, 13:00-13:11UTC, Mel 57, 137.400MHz
http://www.ne.jp/asahi/hamradio/je9pel/90424anu.wav
http://www.ne.jp/asahi/hamradio/je9pel/90424anu.jpg
ANUSAT information,
Telecommand : VHF(PCM/FSK/AM), 100 bits/sec, 149.2 MHz
Telemetry : VHF(PCM/FSK/AM), 256 bits/sec, 137.4 MHz
ANUSAT
1 34808U 09019B 09113.18398593 -.00000289 00000-0 00000+0 0 127
2 34808 041.2102 148.9969 0109770 026.6096 083.2692 15.29388015 488
http://www.isro.org/pressrelease/Apr20_2009.htm
http://beswaminathan.googlepages.com/Anusat.pdf
http://bsidharth1205.googlepages.com/research
Thanks your these information for ANUSAT.
JE9PEL, Mineo Wakita
------------------------------
Message: 11
Date: Sat, 25 Apr 2009 00:30:03 +0900
From: Mineo Wakita <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] Re: ANUSAT heard
To: amsat-bb@xxxxx.xxx
Message-ID: <31C9C4F189EF80ei7m-wkt@xxxxxxxxx.xx.xx>
Content-Type: text/plain; charset=us-ascii
I heard and saved ANUSAT carrier wave (2.8MB).
This is a very very weak signal with a doppler.
ANUSAT, 13:00-13:11UTC, Mel 57, 137.400MHz
http://www.ne.jp/asahi/hamradio/je9pel/90424anu.wav
http://www.ne.jp/asahi/hamradio/je9pel/90424anu.jpg
ANUSAT information,
Telecommand : VHF(PCM/FSK/AM), 100 bits/sec, 149.2 MHz
Telemetry : VHF(PCM/FSK/AM), 256 bits/sec, 137.4 MHz
ANUSAT
1 34808U 09019B 09113.18398593 -.00000289 00000-0 00000+0 0 127
2 34808 041.2102 148.9969 0109770 026.6096 083.2692 15.29388015 488
http://www.isro.org/pressrelease/Apr20_2009.htm
http://beswaminathan.googlepages.com/Anusat.pdf
http://bsidharth1205.googlepages.com/research
Thanks your these information for ANUSAT.
JE9PEL, Mineo Wakita
------------------------------
Message: 12
Date: Fri, 24 Apr 2009 15:59:35 +0000 (UTC)
From: w7lrd@xxxxxxx.xxx
Subject: [amsat-bb] AO-51 U/S
To: amsat-bb@xxxxx.xxx
Message-ID:
<1075957961.1435951240588775916.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx
.xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
At 1707Z, (next pass) I will be looking for W. coast US & Canada, KL7 for
anyone with U/S capability.
73 Bob W7LRD
------------------------------
Message: 13
Date: Fri, 24 Apr 2009 10:57:36 -0700 (PDT)
From: Mark Spencer <mspencer12345@xxxxx.xx>
Subject: [amsat-bb] Re: FLTSATCOM Hacked
To: amsat-bb@xxxxx.xxx
Message-ID: <532740.78968.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
IMHO the issues you are referring to are?probably not cases of deliberate
hacking of the satellites, rather cases of illegal operations inadvertently
interfering with amateur satellites.??? The FLTSATCOM case?seems to involve
pirates deliberately communicating via the satellites.???In my view having
pirates routinely communicating via amateur satellites would be a real problem
for us.????
If the amateur community is ever in the position to launch a satellite that
provides similar performance to one of the transponders on the?FLTSATCOM birds
then we should think about how access might be restricted to amateurs, or how
the system could be designed in a way to make it un attractive for pirates.??
The FLTSATCOM case is probably a worst case (ie. a GEO sat that seems to use
FM, supports the use of simple antennas, and works in frequency bands that are
easy to acquire or modify?equipment for.)
----- Original Message ----
From: Bruce <kk5do@xxxxx.xxx>
To: Daniel Schultz <n8fgv@xxx.xxx>
Cc: "<amsat-bb@xxxxx.xxx>" <amsat-bb@xxxxx.xxx>
Sent: Thursday, April 23, 2009 7:44:30 PM
Subject: [amsat-bb] Re: FLTSATCOM Hacked
our amateur radio satellites have already been hijacked and there was?
nothing we could do. those cber's with modified radios, the over?
powered portable phones, and the taxis south of the border.
73...bruce
Sent from my iPhone
On Apr 23, 2009, at 9:36 PM, "Daniel Schultz" <n8fgv@xxx.xxx> wrote:
_______________________________________________
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
__________________________________________________________________
Ask a question on any topic and get answers from real people. Go to Yahoo!
Answers and share what you know at http://ca.answers.yahoo.com
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 4, Issue 197
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