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CX2SA > SATDIG 03.06.09 05:03l 982 Lines 29809 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: Re; Full duplex: same band ? (Nigel Gunn G8IFF/W8IFF)
2. Re: true duplex radios (Martin)
3. Re: true duplex radios (OZ1MY)
4. Re: true duplex radios (Alan P. Biddle)
5. Re: Hawaii BL11 on AO51 today? (Glenn AA5PK)
6. Re: true duplex radios (Tony Langdon)
7. Re: true duplex radios (Andrew Koenig)
8. Re: Full Duplex Radios (Sigil)
9. Re: Full Duplex Radios (Nigel Gunn G8IFF/W8IFF)
10. Full duplex radios (Sil - ZL2CIA)
11. Re: Full duplex radios (Nigel Gunn G8IFF/W8IFF)
12. AO-51 mode ? (John Price)
13. Re: AO-51 mode ? (Andrew Glasbrenner)
14. (no subject) (Howard Kowall)
15. AO-7 at 13:15 UTC on 3 June (n3tl@xxxxxxxxx.xxxx
16. Re: Portable QSLs (Gary "Joe" Mayfield)
17. Re: true duplex radios (k0vty@xxxx.xxxx
----------------------------------------------------------------------
Message: 1
Date: Tue, 02 Jun 2009 19:00:36 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: Re; Full duplex: same band ?
To: "Henk, PA3GUO" <hamoen@xxx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4A2576D4.3040507@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Agreed, Henk, but we're talking telecommunications terminology.
Your old fashioned wired telephone does full duplex in the same band (baseband
audio) and has done so for over a hundred
years.
Henk, PA3GUO wrote:
> Hi Nigel
>
>> Full Duplex can be both receive and transmit simultaneously
>> in the same band or on the same frequency.
>
> There will be very few radios I guess that can at the same time
> receive as well as transmit on the same band / frequency ...
>
> At least my THD7 and TS2000 can do full duplex, but not on the same band.
>
> However I guess it's a grammar thing, as I do not see an application
> for such either :-)
>
> Henk, PA3GUO
> (still like my TS-2000 a lot, many years after buying it, it still can do
> whatever I like these days: eg. look at http://www.vimeo.com/4911267)
>
>
>
>
>
>
>
>
> _______________________________________________
> 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
>
>
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.339 / Virus Database: 270.12.50/2150 - Release Date: 06/02/09
06:47:00
>
--
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937
825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF), 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.
------------------------------
Message: 2
Date: Tue, 02 Jun 2009 21:02:39 +0200
From: Martin <tmm@xxxxxxx.xx>
Subject: [amsat-bb] Re: true duplex radios
Cc: AMSAT-bb@xxxxx.xxx
Message-ID: <4A25774F.7030402@xxxxxxx.xx>
Content-Type: text/plain; charset=windows-1252; format=flowed
Hi Jim and others.
For ordinary Repeaters the Rx/Tx in the same band is mandatory. But just
think of the filtering needed for TX'ing lots og watts just 600kHz away
from your Rx-frq.
This is also the reason why most repeaters (at least that I know of)
uses really big cavity-filters.
But for Rx/Tx on the same frequency - Forget it. What would be the
purpose anyway?
In my terms, a full-duplex radio is a radio that listens on one band,
whilst transmitting on another.
Regards
OZ1TMM, Martin
Jim Heck wrote:
> Hi All,
>
> In my experience, you dont have to listen to the output channal of a
repeater,
> while transmitting to its input, ie you dont have to hear your own signals
coming
> back through the repeater. BUT you do (ideally) when working through a
satellite.
>
> Again im my experience, such a radio as Greg has described is called a
"half
> duplex" one.
>
> The big advantage of using a full duplex radio for satellites is that you
can
> check if you are being rebroadcast by the satellite or not, without relying
on
> others to tell you. (You can also change the polority of the up link signal,
for
> maximium smoke!)
>
> 73 Jim G3WGM
>
>> -----Original Message-----
>> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxxxx
>> Behalf Of Greg D.
>> Sent: 02 June 2009 07:12
>> To: clintbrad4d@xxxxxxxxx.xxxx amsat-bb@xxxxx.xxx
>> Subject: [amsat-bb] Re: true duplex radios
>>
>>
>>
>> {queue thunder clap}
>>
>> Wait a minute... How can a radio be capable of cross-band repeat and not
>> be full duplex? I believe the answer is no. Cross-band (analog)
>> repeating is inherently full duplex. So, perhaps this is a simple way to
>> ask a non-satellite person, without having to explain what duplex means.
>>
>> By the way, my Alinco DR-610 mobile rig is also full-duplex. You may add
>> it to the list. (In fact, it's got some down-right-weird modes, between
>> the two sides of the radio, that it's sometimes anyone's guess what will
>> happen when you key up.)
>>
>> Greg KO6TH
>>
>>> From: clintbrad4d@xxxxxxxxx.xxx
>>> To: amsat-bb@xxxxx.xxx
>>> Date: Mon, 1 Jun 2009 12:37:16 -0700
>>> Subject: [amsat-bb] Re: true duplex radios
>>>
>>> >> ... Yaesu FT-8800 ...
>>>
>>> Really? Dual-receive, indeed. And will perform crossband repeating.
>>> But I can transmit on one band and simultaneously hear myself on
>>> another with a FT-8800?
>>> _______________________________________________
>>> 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
>> _________________________________________________________________
>> Lauren found her dream laptop. Find the PC that?s right for you.
>> http://www.microsoft.com/windows/choosepc/?ocid=ftp_val_wl_290
>> _______________________________________________
>> 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
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.339 / Virus Database: 270.12.48/2147 - Release Date:
>> 05/31/09 20:45:00
>>
>
> _______________________________________________
> 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: Tue, 2 Jun 2009 21:51:43 +0200
From: "OZ1MY" <oz1my@xxxxxx.xx>
Subject: [amsat-bb] Re: true duplex radios
To: "Martin" <tmm@xxxxxxx.xx>
Cc: AMSAT-bb@xxxxx.xxx
Message-ID: <000401c9e3bb$9498c840$6401a8c0@xxxxxx.xx>
Content-Type: text/plain; charset="Windows-1252"
Hi Martin and other AMSAT'ers,
This is a bit beside the subject but I seemed to recall that
OSCAR-III was running full duplex in the 2 metre band:
http://www.amsat.org/amsat-
new/satellites/satInfo.php?satID=26&retURL=satellites/all_oscars.php
That is not on the same frequency - but the same band.
If you look at some systems like the Marisat system or some
of the scientific satellites in the 2 GHz band it is the same.
To return to the subject I hope someone will gather all the
information about full duplex transceivers that have been
on the amsat-bb during the last days.
73 OZ1MY
Ib
----- Original Message -----
From: "Martin" <tmm@xxxxxxx.xx>
Cc: <AMSAT-bb@xxxxx.xxx>
Sent: Tuesday, June 02, 2009 9:02 PM
Subject: [amsat-bb] Re: true duplex radios
Hi Jim and others.
For ordinary Repeaters the Rx/Tx in the same band is mandatory. But just
think of the filtering needed for TX'ing lots og watts just 600kHz away
from your Rx-frq.
This is also the reason why most repeaters (at least that I know of)
uses really big cavity-filters.
But for Rx/Tx on the same frequency - Forget it. What would be the
purpose anyway?
In my terms, a full-duplex radio is a radio that listens on one band,
whilst transmitting on another.
Regards
OZ1TMM, Martin
Jim Heck wrote:
> Hi All,
>
> In my experience, you dont have to listen to the output channal of a
repeater,
> while transmitting to its input, ie you dont have to hear your own signals
coming
> back through the repeater. BUT you do (ideally) when working through a
satellite.
>
> Again im my experience, such a radio as Greg has described is called a
"half
> duplex" one.
>
> The big advantage of using a full duplex radio for satellites is that
you can
> check if you are being rebroadcast by the satellite or not, without
relying on
> others to tell you. (You can also change the polority of the up link
signal, for
> maximium smoke!)
>
> 73 Jim G3WGM
>
>> -----Original Message-----
>> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxxxx
>> Behalf Of Greg D.
>> Sent: 02 June 2009 07:12
>> To: clintbrad4d@xxxxxxxxx.xxxx amsat-bb@xxxxx.xxx
>> Subject: [amsat-bb] Re: true duplex radios
>>
>>
>>
>> {queue thunder clap}
>>
>> Wait a minute... How can a radio be capable of cross-band repeat and not
>> be full duplex? I believe the answer is no. Cross-band (analog)
>> repeating is inherently full duplex. So, perhaps this is a simple way to
>> ask a non-satellite person, without having to explain what duplex means.
>>
>> By the way, my Alinco DR-610 mobile rig is also full-duplex. You may add
>> it to the list. (In fact, it's got some down-right-weird modes, between
>> the two sides of the radio, that it's sometimes anyone's guess what will
>> happen when you key up.)
>>
>> Greg KO6TH
>>
>>> From: clintbrad4d@xxxxxxxxx.xxx
>>> To: amsat-bb@xxxxx.xxx
>>> Date: Mon, 1 Jun 2009 12:37:16 -0700
>>> Subject: [amsat-bb] Re: true duplex radios
>>>
>>> >> ... Yaesu FT-8800 ...
>>>
>>> Really? Dual-receive, indeed. And will perform crossband repeating.
>>> But I can transmit on one band and simultaneously hear myself on
>>> another with a FT-8800?
>>> _______________________________________________
>>> 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
>> _________________________________________________________________
>> Lauren found her dream laptop. Find the PC that?s right for you.
>> http://www.microsoft.com/windows/choosepc/?ocid=ftp_val_wl_290
>> _______________________________________________
>> 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
>>
>> No virus found in this incoming message.
>> Checked by AVG - www.avg.com
>> Version: 8.5.339 / Virus Database: 270.12.48/2147 - Release Date:
>> 05/31/09 20:45:00
>>
>
> _______________________________________________
> 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: 4
Date: Tue, 2 Jun 2009 15:24:30 -0500
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: "'OZ1MY'" <oz1my@xxxxxx.xx>
Cc: AMSAT-bb@xxxxx.xxx
Message-ID: <872EFA8013284C44911559B7DCC12484@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
A good discussion of OSCAR III here:
http://projectoscar.files.wordpress.com/2008/03/o3_translator.pdf
Alan
WA4SCA
------------------------------
Message: 5
Date: Tue, 2 Jun 2009 15:48:47 -0500
From: "Glenn AA5PK" <aa5pk@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Hawaii BL11 on AO51 today?
To: <AMSAT-BB@xxxxx.xxx>
Message-ID: <F3929D96C20848D18F018D06A1CF8EAD@xxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
The distance could have been stretched a little farther east had Robert been
able to break through the West Coast wall :O)
Glenn AA5PK in DM91
------------------------------
Message: 6
Date: Wed, 03 Jun 2009 06:59:46 +1000
From: Tony Langdon <vk3jed@xxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: Martin <tmm@xxxxxxx.xx>
Cc: AMSAT-bb@xxxxx.xxx
Message-ID: <4a2592cc.2a528c0a.20fc.43da@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 05:02 AM 6/3/2009, Martin wrote:
>Hi Jim and others.
>
>For ordinary Repeaters the Rx/Tx in the same band is mandatory. But just
>think of the filtering needed for TX'ing lots og watts just 600kHz away
>from your Rx-frq.
>This is also the reason why most repeaters (at least that I know of)
>uses really big cavity-filters.
Either that or _very_ widely spaces antennas. For example, to avoid
the need of rather large cavities, 10m repeaters often use two sites,
linked by UHF, to separate Rx and Tx.
>But for Rx/Tx on the same frequency - Forget it. What would be the
>purpose anyway?
Nice way to create a feedback loop. :D You can create an appearance
of full duplex by using a high speed switching scheme on a digital
transmission. In fact, this is exactly what happens if you run
Echolink over a wifi connection. The radio itself is half duplex,
single frequency, but the high data rate and fast T/R switching allow
full duplex for any VoIP on top of it, at the price of a tiny amount
of latency.
>In my terms, a full-duplex radio is a radio that listens on one band,
>whilst transmitting on another.
Nope, full duplex refers to any communication channel capable of
transmitting and receiving information simultaneously. While I know
of no radio capable of running full duplex on the same frequency, as
someone pointed out, the humble analog (landline) telephone does exactly that.
73 de VK3JED / VK3IRL
http://vkradio.com
------------------------------
Message: 7
Date: Tue, 2 Jun 2009 16:07:07 -0500
From: Andrew Koenig <ke5gdb@xxxxx.xxx>
Subject: [amsat-bb] Re: true duplex radios
To: Andrew Koenig <ke5gdb@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<2f52b89b0906021407q206a3e71y9c9345a2bba6f0a5@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I've added a lot of Alinco radios, a few HT's and a base rig. Hopefully this
is complete.
Now the fun begins. Adding the "tone/no tone" column :-). I'll probably
spend a couple hours on Universal Radio's website when school gets out
trying to find that info.
73 de KE5GDB
HTs -
Icom IC-W2A
Icom IC-24AT
Icom IC-W31A
Icom IC-W32
Icom IC-32AT
Icom IC-Z1A
Icom IC-X2A (440MHz/1.2GHz) Yaesu FT-470
Yaesu FT-530
Yaesu FR-51R
Kenwood TH-D7
Kenwood TH-75A Kenwood TH-77
Kenwood TH-78
Kenwood TH-79A
Alinco DJ-G5T
Alinco DJ-580T
Alinco DJ-G7
Mobile rigs -
Alinco DR-570T
Alinco DR-590T
Alinco DR-599T
Alinco DR-600T
Alinco DR-605T
Alinco DR-610T
Alinco DR-620T
Alinco DR-635T
Kenwood TM732
Kenwood TM733Kenwood TM741
Kenwood TM742
Kenwood TM941
Kenwood TM942
Kenwood TM-D700/710
Yaesu FT-4700 Yaesu FT-5100
Yaesu FT-5200
Yaesu FT-8800
Yaesu FT-8900
Icom 2728H
Icom IC2800
Icom IC-2340
Icom IC-2710
Icom IC-2720
Icom IC-2820
Icom IC-Delta-100
Heathkit HW-24/HW-24A
Base rigs -Yaesu FT-726 (with OSCAR Module)
Yaesu FT-736
Yaesu FT-847
Kenwood TS-2000
Icom 820
Icom 821
Icom IC-910H
Icom IC-970
Kenwood TS-790A/E
--
Andrew Koenig
KE5GDB
------------------------------
Message: 8
Date: Wed, 03 Jun 2009 11:45:17 +1200
From: Sigil <caleriffic@xxxxxxxx.xxx.xx>
Subject: [amsat-bb] Re: Full Duplex Radios
To: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Cc: Amsat Reflector <amsat-bb@xxxxx.xxx>
Message-ID: <4A25B98D.8010202@xxxxxxxx.xxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Nigel Gunn G8IFF/W8IFF wrote:
> Not exactly.
> Full Duplex can be both receive and transmit simultaneously in the same
> band or on the same frequency.
> Doesn't have to be in different bands.
>
>
Nigel,
Yes, of course, that's true. A single band repeater is a full duplex radio.
I don't think their are any Ham radios that operate full duplex in a
single band. Of course, I could easily be wrong. Do you know of any?
Sil
------------------------------
Message: 9
Date: Wed, 03 Jun 2009 00:01:56 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: Full Duplex Radios
To: Sigil <caleriffic@xxxxxxxx.xxx.xx>
Cc: Amsat Reflector <amsat-bb@xxxxx.xxx>
Message-ID: <4A25BD74.1040805@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
There are plenty of commercial receiver/transmitter pairs but they all need
external filtering.
I don't know of any amateur transceivers that fall into that category.
Sigil wrote:
>
>
> Yes, of course, that's true. A single band repeater is a full duplex radio.
>
> I don't think their are any Ham radios that operate full duplex in a
> single band. Of course, I could easily be wrong. Do you know of any?
>
------------------------------
Message: 10
Date: Wed, 03 Jun 2009 12:23:04 +1200
From: Sil - ZL2CIA <zl2cia@xxxxx.xxx>
Subject: [amsat-bb] Full duplex radios
To: Amsat Reflector <amsat-bb@xxxxx.xxx>, nigel@xxxxx.xxx
Message-ID: <4A25C268.8020600@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> Nigel,
>
>
> Yes, of course, that's true. A single band repeater is a full duplex
radio.
>
> I don't think their are any Ham radios that operate full duplex in a
> single band. Of course, I could easily be wrong. Do you know of any?
>
>
>
> Sil
"There", not "their" - sheesh
Sil
------------------------------
Message: 11
Date: Wed, 03 Jun 2009 00:38:24 +0000
From: Nigel Gunn G8IFF/W8IFF <nigel@xxxxx.xxx>
Subject: [amsat-bb] Re: Full duplex radios
To: Sil - ZL2CIA <zl2cia@xxxxx.xxx>
Cc: Amsat Reflector <amsat-bb@xxxxx.xxx>
Message-ID: <4A25C600.2060008@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
At least "their" is a proper word.
Sheesh isn't in the dictionary.
Sil - ZL2CIA wrote:
>
> > Nigel,
> >
> >
> > Yes, of course, that's true. A single band repeater is a full duplex
> radio.
> >
> > I don't think their are any Ham radios that operate full duplex in a
> > single band. Of course, I could easily be wrong. Do you know of any?
> >
> >
> >
> > Sil
>
> "There", not "their" - sheesh
>
> Sil
>
>
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.339 / Virus Database: 270.12.50/2150 - Release Date: 06/02/09
06:47:00
>
--
Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937
825 5032
Amateur Radio G8IFF W8IFF (was KC8NHF), 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.
------------------------------
Message: 12
Date: Tue, 2 Jun 2009 20:44:47 -0400
From: John Price <n4qwf1@xxxxx.xxx>
Subject: [amsat-bb] AO-51 mode ?
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID:
<8d1b8e80906021744o1c6e592dwda65232f20bc1c49@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Anyone know if the bird is still in May configuration? I did not get
to work it this evening. Grandson music concert took priority
--
N4QWF Amateur Radio Operator
AO-7,AO-27,FO-29,SO-50,AO-51,VO-52,ISS
Email N4QWF@xxxxx.xxx
Echolink nodes #110903 -L #388463
http://home.comcast.net/~n4qwf/site/
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: 13
Date: Tue, 2 Jun 2009 20:48:43 -0400
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 mode ?
To: "John Price" <n4qwf1@xxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <3C545FA2D0D449FDAF508C5D72C706C7@xxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Still in normal mode. As soon as the weekly conference call is over I'll
have time to update the webpage with the new schedule. Sorry about the
delay.
73, Drew KO4MA
----- Original Message -----
From: "John Price" <n4qwf1@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Tuesday, June 02, 2009 8:44 PM
Subject: [amsat-bb] AO-51 mode ?
> Anyone know if the bird is still in May configuration? I did not get
> to work it this evening. Grandson music concert took priority
>
> --
> N4QWF Amateur Radio Operator
> AO-7,AO-27,FO-29,SO-50,AO-51,VO-52,ISS
> Email N4QWF@xxxxx.xxx
> Echolink nodes #110903 -L #388463
> http://home.comcast.net/~n4qwf/site/
> 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@xxxxx.xxx. Opinions expressed are those of the author.
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Message: 14
Date: Tue, 2 Jun 2009 20:02:13 -0500
From: "Howard Kowall" <hkowall@xxxx.xx>
Subject: [amsat-bb] (no subject)
To: "AMSAT-BB@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Message-ID: <003901c9e3e6$ee6b1c30$6701a8c0@xxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello
Is there anyone out there using WXTrack for radio and rotor control
thanx
Howard
VE4ISP
------------------------------
Message: 15
Date: Wed, 03 Jun 2009 01:26:27 +0000
From: n3tl@xxxxxxxxx.xxx
Subject: [amsat-bb] AO-7 at 13:15 UTC on 3 June
To: AMSAT-BB@xxxxx.xxx
Message-ID:
<060320090126.7411.4A25D1430002EA4B00001CF322216128369B0A02D2089B9A019C0
4040A0DBF049BCC02@xxx.xxx>
Content-Type: text/plain
Hey Everyone,
I just looked at tomorrow's passes of AO-7, and the one that will have me in
the footprint beginning at about 9:06 Eastern Daylight Time (13:06 UTC) hits a
maximum elevation of 87.5 degrees.
Beginning at about 9:15 EDT (13:15 UTC), I'm going to be calling CQ and/or
looking for contacts near mid passband, between 145.950 and 145.951. I'll be
running 500 mW rf out, and would really enjoy getting a contact or two on AO-7
using total flea power.
Thanks in advance to anyone who is on the pass and might listen for N3TL.
73 to all,
Tim - N3TL
------------------------------
Message: 16
Date: Tue, 2 Jun 2009 21:39:27 -0500
From: "Gary \"Joe\" Mayfield" <gary_mayfield@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Portable QSLs
To: "'Justin Pinnix'" <justin@xxxxxxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Message-ID: <COL0-DAV109E47DA490035A76C8C078A4A0@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Justin,
I have never heard of one of my cards being rejected, and I have helped
many to VUCC by operating portable.
Strike out your home grid, then add portable from Grid, county and state.
You should be good to go with that and you will make the card checker happy.
On LOTW I have gotten a new certificate and attached the grid, county and
state information to the certificate for those QSOs. Let's just hope the
League gets around to accepting LOTW for VUCC some day as they have implied
they would.
73,
Joe kk0sd
P.S. I am taking grid requests for a summer trip to my south EN01? EN02?
EN03? EN23? Something else?
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Justin Pinnix
Sent: Tuesday, June 02, 2009 1:13 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Portable QSLs
If you are operating away from home and want to send out QSL cards, is it
acceptable to use your "home" card and note corrections to the location?
Can I just put "portable FM17" in the notes field? Should I strike
through my home grid?
73
AJ4MJ/P FM25 (15 May - 17 May 2009)
AJ4MJ/P FM07 (30 May - 1 June 2009)
AJ4MJ FM05 (otherwise)
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
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Message: 17
Date: Tue, 2 Jun 2009 22:22:04 CDT
From: k0vty@xxxx.xxx
Subject: [amsat-bb] Re: true duplex radios
To: APBIDDLE@xxxxxxx.xxxx amsat-bb@xxxxx.xxx
Message-ID: <20090602.222205.1464.8.k0vty@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi Alan
Memories:
14 March 1965, My first Satellite QSO.
OSCAR III went up on March 9 1965 and the battery lasted 18 days.
After two year of designing and building for this day I made my first
satellite QSO (CW)
1965 was a much different time for 2 meters and all that went along with
that frequency
There was three of us on 2 meters locally in those days, Frank (W0EMS),
Omaha, NE , Sid (K0DOM), Lincoln, NE and myself, Joe (K0VTY) , Ithaca ,
NE.
Sid was working for Hygain and Frank only worked 2 meter cw.
Sid and I had been bitten by the satillite bug and Frank just wanted to
watch.
Evening gab fests on 2 kept us all on track.
My 2 meter preamp design using a pair of 7077's ceramic tubes and a pair
of 11 element HB yagi's
made up the Oscar III LEO receiving station.
A 6360 electron tube transmitting converter (28 to 144) for SSB and CW (
Halicrafter HT-37 driver) worked FB.
Antennas were at 40 feet fully AZ and EL hand controlled.
In those days there were no computer to do the things done today.
The second pass that evening went over Utah.
On 144.108, at 0839z K0DOM responded to my CQ.
We lost the bird as it passed over Alaska
I recorded the audio so we could play it back to Frank and Sid after each
pass
whether we made contact or not just to listen to the other guys trying to
work the bird.
Those were the good old days when the only tracking method was using half
a Globe
sitting on a board so it would pivot and align the Longitude on the globe
to a mark on the board
where longitude equator crossing times could be used as published for
OSCAR III.
Amateur satillite activity progressed rapidly with DX being the driver
using HEO birds.
When the cold war found need for a right now communications need between
Washington and Moscow
the Molniya orbit was developed so satellite communication could be
provided.
If it worked for that it likewise would work for Hams on a HEO bird,
63.4 inclination.
It took a while to get there but it was a great run of amateur radio
enjoyment.
Lots of Amsat membership, many inovation all the time.
Publication for satellite DX monthly with Satellite Orital elements to
use for tracking
One Publication , Oscar Satellite Report , a commercial pubication made
Satellite DX prime.
AO-40 was to be the cream of the crop, and it surely was in design.
At my age I no doubt have seen my last HEO DX QSO .
Especailly those QSO's that come after you already have over 200 intities
comfirmed and those left
out there are the entties that lie near the horizon at 8000 plus miles
away and the hole in the tree has to line up just at the right time on
that orbit for a few moments.
I have rambled on but that is what you get by providing old memories of
OSCAR III
Thanks Alan and 73's
Joe K0VTY
========================
On Tue, 2 Jun 2009 15:24:30 -0500 "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
writes:
> A good discussion of OSCAR III here:
>
> http://projectoscar.files.wordpress.com/2008/03/o3_translator.pdf
>
> Alan
> WA4SCA
>
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the
> author.
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>
>
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------------------------------
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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!
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End of AMSAT-BB Digest, Vol 4, Issue 256
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