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CX2SA > SATDIG 26.07.08 02:48l 1138 Lines 34827 Bytes #999 (0) @ WW
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Sent: 080726/0048Z @:CX2SA.LAV.URY.SA #:20995 [Minas] FBB7.00e $:20995_CX2SA
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Delfi-C3 Tranponder now activated over Europe (Trevor)
2. Re: Delfi-C3 Tranponder now activated over Europe (Dave Aitch)
3. Re: FO29 report (John Price)
4. Re: VHF UHF Rig (Andrew Harris)
5. Re: Delfi-C3 Tranponder now activated over Europe (G0MRF(AT)aol.com)
6. Re: VHF UHF Rig (Robert Bruninga)
7. Re: Delfi-C3 Tranponder now activated over Europe (Alan Cresswell)
8. Re: VHF UHF Rig (Andrew Harris)
9. Dish surface 'flatness' (Peter Ellis)
10. FO-29 is back again ! (SV1BSX)
11. Re: FO-29 is back again No2 (SV1BSX)
----------------------------------------------------------------------
Message: 1
Date: Fri, 25 Jul 2008 19:54:07 +0000 (GMT)
From: Trevor <m5aka(AT)yahoo.co.uk>
Subject: [amsat-bb] Delfi-C3 Tranponder now activated over Europe
To: AMSAT BB <amsat-bb(AT)amsat.org>
Message-ID: <901109.74507.qm(AT)web27207.mail.ukl.yahoo.com>
Content-Type: text/plain; charset=utf-8
Delfi-C3 Tranponder now activated over Europe
The Delfi-C3 435 to 145 MHz SSB/CW transponponder has now been activated..
It will be switched on duing this weekend whenever it is within range of
Europe and will automatically switch back to science (telemetry) mode when it
goes into eclipse about 1 hour later.
This means that only those within range of the European passes will be able to
use it.
The Delfi-C3 team will be giving presentations on their exciting new satellite
during the AMSAT-UK Colloquium taking place at the University of Surrey, home
of the Surrey Space Centre.
The presentations start at 09:05 am (0805GMT) on Saturday July 26th and will
will be streamed live to the web to a worldwide audience at
http://www.batc.tv/
For more info see
http://www.uk.amsat.org/content/view/658/68/
----
__________________________________________________________
Not happy with your email address?.
Get the one you really want - millions of new email addresses available now at
Yahoo! http://uk.docs.yahoo.com/ymail/new.html
------------------------------
Message: 2
Date: Fri, 25 Jul 2008 21:16:39 +0100
From: "Dave Aitch" <dave(AT)g1ocn.com>
Subject: [amsat-bb] Re: Delfi-C3 Tranponder now activated over Europe
To: "'Trevor'" <m5aka(AT)yahoo.co.uk>
Cc: amsat-bb(AT)amsat.org
Message-ID: <000f01c8ee93$59dce0b0$0d96a210$(AT)com>
Content-Type: text/plain; charset="us-ascii"
Did you actually hear anything at all during
the last pass to the east of the UK Trevor ?
Cheers, Dave.
-----Original Message-----
From: On Behalf Of Trevor
Sent: 25 July 2008 20:54
To: AMSAT BB
Subject: [amsat-bb] Delfi-C3 Tranponder now activated over Europe
Delfi-C3 Tranponder now activated over Europe
------------------------------
Message: 3
Date: Fri, 25 Jul 2008 16:24:28 -0400
From: "John Price" <n4qwf1(AT)gmail.com>
Subject: [amsat-bb] Re: FO29 report
To: SV1BSX <sv1bsx(AT)yahoo.gr>, "amsat-bb(AT)amsat.org"
<amsat-bb(AT)amsat.org>
Message-ID:
<8d1b8e80807251324w14651a03uf1a3bde887742436(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
This morning over FM07 the satellite was and working. The beacon was
strong. I sent it a CW tone with the 847 power turned to zero and
heard it on return nicely. Seems it is on the way back. Wonderful job
by the controllers. A big thank you for all your effort.
73's << John
On Fri, Jul 25, 2008 at 1:52 PM, SV1BSX <sv1bsx(AT)yahoo.gr> wrote:
>
>>
>>
>> Glad to report that the FO29 beacon and transponder were active on the
>> 1036 pass over the UK this morning
>>
>>
>> Managed a QSO with PA1TNO at 1039 using low power (less than 5 w) both
>> ways good news indead.
>> Regards Robert G8ATE
>>
>
> Hi Robert,
>
> thanks for great report, I am also very glad about that as the FO-29
> was my favorite Satellite.
>
> However, it's very interesting to notice that:
>
> as I observed on my tracking software the FO-29 was in "eclipse"
> from 09:11 - 09:46 Z (eclipse duration 35 mins, over Pacific).
> Then, came on Sunlight over Antarctica and it was illuminated till your QSO
> (AT) 10:36Z.
>
> That means probably the battery -somehow- it can maintain now the
> Satellite "ON" after long eclipse-periods
>
> -OR-
>
> the Satellite was activated - when came on Sunlight , without JARL's
> ground station command !!!
> As I remember, the automatic turn-ON of Satellite it was NOT possible till
> now, for unknown reasons. It was necessary always a ground station
> command in order to activate the Satellite.
>
> Something has changed into FO-29 ?
>
> I hope ! I have my fingers crossed !
>
> 73, Mak SV1BSX
>
>
> _______________________________________________
> 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
>
--
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: 4
Date: Fri, 25 Jul 2008 17:19:09 -0400
From: "Andrew Harris" <andrew.unit(AT)gmail.com>
Subject: [amsat-bb] Re: VHF UHF Rig
To: AMSAT-BB <amsat-bb(AT)amsat.org>
Message-ID:
<fa247160807251419v6c504d28sa0da4e2ea704e50a(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi everyone,
Is there a radio that is small and lightweight that I could
interface to a computer easily to receive and transmit packets to
AO-51? I need one that I would not have to tinker with by hand; I
want to use the radio (and the AO-51 pacsat) as the primary means to
communicate with an ocean-deployed robot. Obviously my hand would not
be there to correct for doppler, etc.
-andrew
On Fri, Jul 25, 2008 at 12:55 PM, i8cvs <domenico.i8cvs(AT)tin.it> wrote:
> Hi All,
>
> My Kenwood TS-790E has absolutely no "birdies" in 2 m ,70 cm and 23 cm
> and this is why I like it very much.
>
> Tanks very much the OM that sold it to me as used to buy a new TS-2000X
> and his "birdies" !
>
> 73" de
>
> i8CVS Domenico
>
> ----- Original Message -----
> From: "John Price" <n4qwf1(AT)gmail.com>
> To: "Andrew Glasbrenner" <glasbrenner(AT)mindspring.com>; <amsat-
bb(AT)amsat.org>
> Sent: Friday, July 25, 2008 4:54 PM
> Subject: [amsat-bb] Re: VHF UHF Rig
>
>
>> My 847 has a number of birdies in the satellite band. I use a magic
>> notch to silence them. It is
>> not the perfect solution but it works.
>>
>> 73's << John
>>
>> On Fri, Jul 25, 2008 at 10:32 AM, Andrew Glasbrenner
>> <glasbrenner(AT)mindspring.com> wrote:
>> > The TS2000 generates an internal signal (a "birdie") on the downlink of
>> > SO-50 and AO-27. This signal overwhelms the satellite signal in most
> cases,
>> > making it difficult if no impossible to use on those two very popular
>> > satellites.
>> >
>> > 73, Drew KO4MA
>> >
>> > ----- Original Message -----
>> > From: "Terry Dillard" <tdillard(AT)gmail.com>
>> > To: <AMSAT-BB(AT)amsat.org>
>> > Sent: Friday, July 25, 2008 9:55 AM
>> > Subject: [amsat-bb] Re: VHF UHF Rig
>> >
>> >
>> >> Pardon my ignorance, but what the heck is a "birdy problem"?
>> >>
>> >> --
>> >> Terry Dillard, KI4YZI
>> >> www.ki4yzi.com
>> >> "Veritas Vos Liberabit"
>> >>
>> >>
>> >> On 7/24/08, Sebastian <w4as(AT)bellsouth.net> wrote:
>> >>>
>> >>> Oh boy, and here I just bought a used dual band mobile on the cheap
>> >>> (no transmit) to take care of the birdy problem.
>> >>>
>> >>> Do you have any idea why the birdy would show up on a different
>> >>> radio? Could it be a matter of a lack of shielding? It just doesn't
>> >>> make any sense to me why a different rig would get that interference
>> >>> on receive, and even when using a different antenna.
>> >>>
>> >>> Others have suggested using a preamp on 440, and turning off the
>> >>> 2000's internal preamp and lowering the rf gain, therefore using the
>> >>> preamp to get rid of most of the birdy.
>> >>>
>> >>> But I guess I'll find out for sure when my other rig gets here.
>> >>>
>> >>> 73 de W4AS
>> >>> Sebastian
>> >>>
>> >>> On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
>> >>>
>> >>> > On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller <mmiller(AT)nctc.com>
>> >>> > wrote:
>> >>> >> Thinking about selling 847.....Which rig is best for
>> >>> >> satellite..work.?
>> >>> >>
>> >>> >> ICOM 910 H
>> >>> >> Kenwood 2000
>> >>> >>
>> >>> >> opinions ....your 2 cents
>> >>> >
>> >>> > I own a TS-2000. The birdie problem on SO-50 and AO-27 is quite
> real,
>> >>> > and there is no fix I know of. I find that the birdie is so bad that
>> >>> > even if I use a different receiver on UHF, I pick up the birdie on
> it
>> >>> > as well! So it is a worse radio regarding satellite work than the
> ICOM
>> >>> > if you care to work these birds. However, if you consider the fact
>> >>> > that a fine HF radio is thrown in at no extra cost, that there is
>> >>> > continuously adjustable filtering also at no cost, you might prefer
>> >>> > that trade-off. I'm reasonably pleased with mine.
>> >>> >
>> >>> > However, if money were no issue, I would get the ICOM for satellite
>> >>> > work and a different HF radio with even better characteristics.
>> >>> >
>> >>> > HTH,
>> >>> >
>> >>> > 73, Bruce
>> >>> > VE9QRP
>> >>>
>> >> _______________________________________________
>> >> 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
>> >
>>
>>
>>
>> --
>> 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!"
>> _______________________________________________
>> 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: 5
Date: Fri, 25 Jul 2008 17:53:24 EDT
From: G0MRF(AT)aol.com
Subject: [amsat-bb] Re: Delfi-C3 Tranponder now activated over Europe
To: dave(AT)g1ocn.com
Cc: amsat-bb(AT)amsat.org
Message-ID: <c38.38bcdd6a.35bba554(AT)aol.com>
Content-Type: text/plain; charset="US-ASCII"
In a message dated 25/07/2008 20:41:01 GMT Standard Time, dave(AT)g1ocn.com
writes:
Did you actually hear anything at all during
the last pass to the east of the UK Trevor ?
Cheers, Dave.
Heard a 2m beacon sending CW. " Hi de Delfi c3 " apx 9pm UK time
That's new to me.
Thanks
David G0MRF
------------------------------
Message: 6
Date: Fri, 25 Jul 2008 17:55:39 -0400
From: "Robert Bruninga" <bruninga(AT)usna.edu>
Subject: [amsat-bb] Re: VHF UHF Rig
To: "'Andrew Harris'" <andrew.unit(AT)gmail.com>, "'AMSAT-BB'"
<amsat-bb(AT)amsat.org>
Message-ID: <685A73A53F00414299F5134F59F99190(AT)ewlab.usna.edu>
Content-Type: text/plain; charset="us-ascii"
> Is there a radio that is small and lightweight
> that I could interface to a computer easily to
> receive and transmit packets to AO-51?
> I want to use the radio (and the AO-51 pacsat)
> as the primary means to communicate with an
> ocean-deployed robot.
Use any of the APRS radios (D7, D70, D710). They all have 9600
baud TNC's built in... Operate in UI digipeat mode assuming your
command/telemetry is sparse and infrequent and not high volume..
Bob, WB4APR
Obviously my hand would not
> be there to correct for doppler, etc.
>
> -andrew
>
> On Fri, Jul 25, 2008 at 12:55 PM, i8cvs
<domenico.i8cvs(AT)tin.it> wrote:
> > Hi All,
> >
> > My Kenwood TS-790E has absolutely no "birdies" in 2 m ,70
> cm and 23 cm
> > and this is why I like it very much.
> >
> > Tanks very much the OM that sold it to me as used to buy a
> new TS-2000X
> > and his "birdies" !
> >
> > 73" de
> >
> > i8CVS Domenico
> >
> > ----- Original Message -----
> > From: "John Price" <n4qwf1(AT)gmail.com>
> > To: "Andrew Glasbrenner" <glasbrenner(AT)mindspring.com>;
> <amsat-bb(AT)amsat.org>
> > Sent: Friday, July 25, 2008 4:54 PM
> > Subject: [amsat-bb] Re: VHF UHF Rig
> >
> >
> >> My 847 has a number of birdies in the satellite band. I use
a magic
> >> notch to silence them. It is
> >> not the perfect solution but it works.
> >>
> >> 73's << John
> >>
> >> On Fri, Jul 25, 2008 at 10:32 AM, Andrew Glasbrenner
> >> <glasbrenner(AT)mindspring.com> wrote:
> >> > The TS2000 generates an internal signal (a "birdie") on
> the downlink of
> >> > SO-50 and AO-27. This signal overwhelms the satellite
> signal in most
> > cases,
> >> > making it difficult if no impossible to use on those two
> very popular
> >> > satellites.
> >> >
> >> > 73, Drew KO4MA
> >> >
> >> > ----- Original Message -----
> >> > From: "Terry Dillard" <tdillard(AT)gmail.com>
> >> > To: <AMSAT-BB(AT)amsat.org>
> >> > Sent: Friday, July 25, 2008 9:55 AM
> >> > Subject: [amsat-bb] Re: VHF UHF Rig
> >> >
> >> >
> >> >> Pardon my ignorance, but what the heck is a "birdy
problem"?
> >> >>
> >> >> --
> >> >> Terry Dillard, KI4YZI
> >> >> www.ki4yzi.com
> >> >> "Veritas Vos Liberabit"
> >> >>
> >> >>
> >> >> On 7/24/08, Sebastian <w4as(AT)bellsouth.net> wrote:
> >> >>>
> >> >>> Oh boy, and here I just bought a used dual band mobile
> on the cheap
> >> >>> (no transmit) to take care of the birdy problem.
> >> >>>
> >> >>> Do you have any idea why the birdy would show up on a
different
> >> >>> radio? Could it be a matter of a lack of shielding?
> It just doesn't
> >> >>> make any sense to me why a different rig would get
> that interference
> >> >>> on receive, and even when using a different antenna.
> >> >>>
> >> >>> Others have suggested using a preamp on 440, and
> turning off the
> >> >>> 2000's internal preamp and lowering the rf gain,
> therefore using the
> >> >>> preamp to get rid of most of the birdy.
> >> >>>
> >> >>> But I guess I'll find out for sure when my other rig
gets here.
> >> >>>
> >> >>> 73 de W4AS
> >> >>> Sebastian
> >> >>>
> >> >>> On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
> >> >>>
> >> >>> > On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller
> <mmiller(AT)nctc.com>
> >> >>> > wrote:
> >> >>> >> Thinking about selling 847.....Which rig is best for
> >> >>> >> satellite..work.?
> >> >>> >>
> >> >>> >> ICOM 910 H
> >> >>> >> Kenwood 2000
> >> >>> >>
> >> >>> >> opinions ....your 2 cents
> >> >>> >
> >> >>> > I own a TS-2000. The birdie problem on SO-50 and
> AO-27 is quite
> > real,
> >> >>> > and there is no fix I know of. I find that the
> birdie is so bad that
> >> >>> > even if I use a different receiver on UHF, I pick up
> the birdie on
> > it
> >> >>> > as well! So it is a worse radio regarding satellite
> work than the
> > ICOM
> >> >>> > if you care to work these birds. However, if you
> consider the fact
> >> >>> > that a fine HF radio is thrown in at no extra cost,
> that there is
> >> >>> > continuously adjustable filtering also at no cost,
> you might prefer
> >> >>> > that trade-off. I'm reasonably pleased with mine.
> >> >>> >
> >> >>> > However, if money were no issue, I would get the
> ICOM for satellite
> >> >>> > work and a different HF radio with even better
> characteristics.
> >> >>> >
> >> >>> > HTH,
> >> >>> >
> >> >>> > 73, Bruce
> >> >>> > VE9QRP
> >> >>>
> >> >> _______________________________________________
> >> >> 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
> >> >
> >>
> >>
> >>
> >> --
> >> 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!"
> >> _______________________________________________
> >> 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: 7
Date: Fri, 25 Jul 2008 22:34:37 -0000
From: "Alan Cresswell" <alancresswell(AT)xtra.co.nz>
Subject: [amsat-bb] Re: Delfi-C3 Tranponder now activated over Europe
To: "'AMSAT BB'" <amsat-bb(AT)amsat.org>
Message-ID: <001b01c8eea6$9f8b56b0$0401010a(AT)Dell1>
Content-Type: text/plain; charset="us-ascii"
The transponder was on over ZL this morning 2036UT pass with weak signals
from transponder downlink and beacon.
Active again on the 2212UT pass with very good signals from both transponder
downlink and beacon.
Appears to have a 6kHz offset on the downlink.
Alan
ZL2BX
-----Original Message-----
From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org] On
Behalf Of Trevor
Sent: Friday, 25 July 2008 19:54
To: AMSAT BB
Subject: [amsat-bb] Delfi-C3 Tranponder now activated over Europe
Delfi-C3 Tranponder now activated over Europe
The Delfi-C3 435 to 145 MHz SSB/CW transponponder has now been activated..
It will be switched on duing this weekend whenever it is within range of
Europe and will automatically switch back to science (telemetry) mode when
it goes into eclipse about 1 hour later.
This means that only those within range of the European passes will be able
to use it.
The Delfi-C3 team will be giving presentations on their exciting new
satellite during the AMSAT-UK Colloquium taking place at the University of
Surrey, home of the Surrey Space Centre.
The presentations start at 09:05 am (0805GMT) on Saturday July 26th and will
will be streamed live to the web to a worldwide audience at
http://www.batc.tv/
For more info see
http://www.uk.amsat.org/content/view/658/68/
----
__________________________________________________________
Not happy with your email address?.
Get the one you really want - millions of new email addresses available now
at Yahoo! http://uk.docs.yahoo.com/ymail/new.html
_______________________________________________
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: 8
Date: Fri, 25 Jul 2008 19:28:30 -0400
From: "Andrew Harris" <andrew.unit(AT)gmail.com>
Subject: [amsat-bb] Re: VHF UHF Rig
To: bruninga(AT)usna.edu
Cc: AMSAT-BB <amsat-bb(AT)amsat.org>
Message-ID:
<fa247160807251628w284a3046m11b8eba7ffffe678(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi Bob,
Thanks for the info. I actually own a Kenwood TH-D7. Is that what
you're referring to? I was under the impression that the TNC on the
TH-D7 is permanently crippled and I couldn't use it to effectively
communicate in both directions to a pacsat.
-andrew
On Fri, Jul 25, 2008 at 5:55 PM, Robert Bruninga <bruninga(AT)usna.edu> wrote:
>> Is there a radio that is small and lightweight
>> that I could interface to a computer easily to
>> receive and transmit packets to AO-51?
>> I want to use the radio (and the AO-51 pacsat)
>> as the primary means to communicate with an
>> ocean-deployed robot.
>
> Use any of the APRS radios (D7, D70, D710). They all have 9600
> baud TNC's built in... Operate in UI digipeat mode assuming your
> command/telemetry is sparse and infrequent and not high volume..
>
> Bob, WB4APR
>
> Obviously my hand would not
>> be there to correct for doppler, etc.
>>
>> -andrew
>>
>> On Fri, Jul 25, 2008 at 12:55 PM, i8cvs
> <domenico.i8cvs(AT)tin.it> wrote:
>> > Hi All,
>> >
>> > My Kenwood TS-790E has absolutely no "birdies" in 2 m ,70
>> cm and 23 cm
>> > and this is why I like it very much.
>> >
>> > Tanks very much the OM that sold it to me as used to buy a
>> new TS-2000X
>> > and his "birdies" !
>> >
>> > 73" de
>> >
>> > i8CVS Domenico
>> >
>> > ----- Original Message -----
>> > From: "John Price" <n4qwf1(AT)gmail.com>
>> > To: "Andrew Glasbrenner" <glasbrenner(AT)mindspring.com>;
>> <amsat-bb(AT)amsat.org>
>> > Sent: Friday, July 25, 2008 4:54 PM
>> > Subject: [amsat-bb] Re: VHF UHF Rig
>> >
>> >
>> >> My 847 has a number of birdies in the satellite band. I use
> a magic
>> >> notch to silence them. It is
>> >> not the perfect solution but it works.
>> >>
>> >> 73's << John
>> >>
>> >> On Fri, Jul 25, 2008 at 10:32 AM, Andrew Glasbrenner
>> >> <glasbrenner(AT)mindspring.com> wrote:
>> >> > The TS2000 generates an internal signal (a "birdie") on
>> the downlink of
>> >> > SO-50 and AO-27. This signal overwhelms the satellite
>> signal in most
>> > cases,
>> >> > making it difficult if no impossible to use on those two
>> very popular
>> >> > satellites.
>> >> >
>> >> > 73, Drew KO4MA
>> >> >
>> >> > ----- Original Message -----
>> >> > From: "Terry Dillard" <tdillard(AT)gmail.com>
>> >> > To: <AMSAT-BB(AT)amsat.org>
>> >> > Sent: Friday, July 25, 2008 9:55 AM
>> >> > Subject: [amsat-bb] Re: VHF UHF Rig
>> >> >
>> >> >
>> >> >> Pardon my ignorance, but what the heck is a "birdy
> problem"?
>> >> >>
>> >> >> --
>> >> >> Terry Dillard, KI4YZI
>> >> >> www.ki4yzi.com
>> >> >> "Veritas Vos Liberabit"
>> >> >>
>> >> >>
>> >> >> On 7/24/08, Sebastian <w4as(AT)bellsouth.net> wrote:
>> >> >>>
>> >> >>> Oh boy, and here I just bought a used dual band mobile
>> on the cheap
>> >> >>> (no transmit) to take care of the birdy problem.
>> >> >>>
>> >> >>> Do you have any idea why the birdy would show up on a
> different
>> >> >>> radio? Could it be a matter of a lack of shielding?
>> It just doesn't
>> >> >>> make any sense to me why a different rig would get
>> that interference
>> >> >>> on receive, and even when using a different antenna.
>> >> >>>
>> >> >>> Others have suggested using a preamp on 440, and
>> turning off the
>> >> >>> 2000's internal preamp and lowering the rf gain,
>> therefore using the
>> >> >>> preamp to get rid of most of the birdy.
>> >> >>>
>> >> >>> But I guess I'll find out for sure when my other rig
> gets here.
>> >> >>>
>> >> >>> 73 de W4AS
>> >> >>> Sebastian
>> >> >>>
>> >> >>> On Jul 24, 2008, at 7:00 PM, Bruce Robertson wrote:
>> >> >>>
>> >> >>> > On Wed, Jul 23, 2008 at 11:31 PM, Mike Miller
>> <mmiller(AT)nctc.com>
>> >> >>> > wrote:
>> >> >>> >> Thinking about selling 847.....Which rig is best for
>> >> >>> >> satellite..work.?
>> >> >>> >>
>> >> >>> >> ICOM 910 H
>> >> >>> >> Kenwood 2000
>> >> >>> >>
>> >> >>> >> opinions ....your 2 cents
>> >> >>> >
>> >> >>> > I own a TS-2000. The birdie problem on SO-50 and
>> AO-27 is quite
>> > real,
>> >> >>> > and there is no fix I know of. I find that the
>> birdie is so bad that
>> >> >>> > even if I use a different receiver on UHF, I pick up
>> the birdie on
>> > it
>> >> >>> > as well! So it is a worse radio regarding satellite
>> work than the
>> > ICOM
>> >> >>> > if you care to work these birds. However, if you
>> consider the fact
>> >> >>> > that a fine HF radio is thrown in at no extra cost,
>> that there is
>> >> >>> > continuously adjustable filtering also at no cost,
>> you might prefer
>> >> >>> > that trade-off. I'm reasonably pleased with mine.
>> >> >>> >
>> >> >>> > However, if money were no issue, I would get the
>> ICOM for satellite
>> >> >>> > work and a different HF radio with even better
>> characteristics.
>> >> >>> >
>> >> >>> > HTH,
>> >> >>> >
>> >> >>> > 73, Bruce
>> >> >>> > VE9QRP
>> >> >>>
>> >> >> _______________________________________________
>> >> >> 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
>> >> >
>> >>
>> >>
>> >>
>> >> --
>> >> 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!"
>> >> _______________________________________________
>> >> 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: 9
Date: Sat, 26 Jul 2008 08:00:26 +1000
From: Peter Ellis <vk1kep(AT)gmail.com>
Subject: [amsat-bb] Dish surface 'flatness'
To: amsat-bb(AT)amsat.org
Message-ID: <488A4CFA.6060703(AT)gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I am now the proud owner of a very 'second-hand' 3m mesh-covered
skeleton dish.
The mesh covering is metaphorical, rather than actual. I watched the
dish on its back while as a group of small children rolled the dish back
and forth and trampled holes in the mesh. That's the reason I was able
to ask for it. "Please take it away," was the manager's reply to my query.
Now, I need to re-mesh the dish, but I need to decide what 'flatness'
('true-ness') the surface should be. There has to be a formula, that
encompasses things like: frequency of operation, curvature or focus
distance, etc.
I've done some looking online, but can't find it readily.
Suggestions, and discussion, please?
Please note: If you're going to also make product, brand name, or
supplier suggestions, then be generic as suppliers and products in VK
(Australia) will differ from where most list members will be sited.
With thanks,
Peter
VK1KEP
------------------------------
Message: 10
Date: Sat, 26 Jul 2008 02:05:36 +0300
From: "SV1BSX" <sv1bsx(AT)yahoo.gr>
Subject: [amsat-bb] FO-29 is back again !
To: <eu-amsat(AT)yahoogroups.com>
Cc: amsat-bb(AT)amsat.org
Message-ID: <002b01c8eeab$0ac1a3e0$0b09a8c0(AT)zeus>
Content-Type: text/plain; charset="windows-1253"
Hello all,
after Robert-G8ATE's report on Amsat-BB, this evening I tried together with
my friend
Dimitris, SW1JGW, a test on FO-29.
Well, yes indeed, the Satellite is active again ! Just after the AOS we
heard clear
the Beacon, and then I had a nice QSO with SW1JGW (21:36Z) ! After that I
changed
my frequency a bit lower and I had a 2nd QSO with DL6HP (21:38 Z).
Both, Dimitris and I, we were QRP ! 5 Watts for Uplink were enough for
excellent return
signals on Downlink. By using QRP we tried to avoid any overloading of the
bird.
The Satellite was really Booming, always 55 - 59 with "crystal audio".
However, at 21:38 my return-signal rapidly decreased, but even much lower it
was easily readable.
After that I interrupted my TX and I return onto Beacon frequency. Q5 now, but
still "clear" !
Later I noticed that on my tracking software, precisely at this time the
Satellite came on a new Eclipse !
So, probably the old-Batteries are not strong enough in order to support the
same Downlink-power
in eclipse, like that on Sunlight. Also I observed some FMing at this point
and I lost the
signal before the LOS, but on this direction I have not "clear horizon" (but
High buildings),
so I can't say with accuracy if the Satellite was still "ON" or not. Sorry !
Anyway, the FO-29 is back again ! Great news !
CU on FO-29 !
73 de Mak, SV1BSX
Email: sv1bsx "AT" yahoo .gr
URL : http://sv1bsx.50webs.com
------------------------------
Message: 11
Date: Sat, 26 Jul 2008 03:09:26 +0300
From: "SV1BSX" <sv1bsx(AT)yahoo.gr>
Subject: [amsat-bb] Re: FO-29 is back again No2
To: <eu-amsat(AT)yahoogroups.com>
Cc: amsat-bb(AT)amsat.org
Message-ID: <006701c8eeb4$008c5560$0b09a8c0(AT)zeus>
Content-Type: text/plain; charset="windows-1253"
Hello again,
Just a few minutes ago FO-29 was in my range for 2nd time this night (orbit
#58964) and it was
active again, strong and healthy !
I heard it clear from 5 degr (AT) 23:18 Z, over Scandinavia. At 22:23Z came on
a new Eclipse
again... however it's obvious that, as I observed very carefully this time,
the Satellite has
not any problem also into Eclipse! I did not notice any decreasing of
Downlink power this
time, nothing at all. I sent several times CQ on CW and SSB, too. No problem
!
Always BOOOMing ! Loud & Clear signal !
I lost the signal at 23:29 (5 degr). It is absolutely normal from my
location that.
After my 2nd observation, it's obvious that (my opinion) now the batteries
can maintain the Satellite "ON",
even if goes through Eclipses. I don't know how is possible to re-born old-
batteries on Space, however...
Congratulations to JARL for that ! Well done !
My compliments Gentlemen... I vail . -
73, Mak SV1BSX
----- Original Message -----
From: SV1BSX
To: eu-amsat(AT)yahoogroups.com
Cc: amsat-bb(AT)amsat.org ; i8cvs
Sent: Saturday, July 26, 2008 2:05 AM
Subject: [eu-amsat] FO-29 is back again !
Hello all,
after Robert-G8ATE's report on Amsat-BB, this evening I tried together with
my friend
Dimitris, SW1JGW, a test on FO-29.
Well, yes indeed, the Satellite is active again ! Just after the AOS we
heard clear
the Beacon, and then I had a nice QSO with SW1JGW (21:36Z) ! After that I
changed
my frequency a bit lower and I had a 2nd QSO with DL6HP (21:38 Z).
Both, Dimitris and I, we were QRP ! 5 Watts for Uplink were enough for
excellent return
signals on Downlink. By using QRP we tried to avoid any overloading of the
bird.
The Satellite was really Booming, always 55 - 59 with "crystal audio".
However, at 21:38 my return-signal rapidly decreased, but even much lower it
was easily readable.
After that I interrupted my TX and I return onto Beacon frequency. Q5 now,
but still "clear" !
Later I noticed that on my tracking software, precisely at this time the
Satellite came on a new Eclipse !
So, probably the old-Batteries are not strong enough in order to support the
same Downlink-power
in eclipse, like that on Sunlight. Also I observed some FMing at this point
and I lost the
signal before the LOS, but on this direction I have not "clear horizon" (but
High buildings),
so I can't say with accuracy if the Satellite was still "ON" or not. Sorry !
Anyway, the FO-29 is back again ! Great news !
CU on FO-29 !
73 de Mak, SV1BSX
Email: sv1bsx "AT" yahoo ..gr
URL : http://sv1bsx.50webs.com
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