| |
CX2SA > SATDIG 18.05.10 19:37l 849 Lines 30893 Bytes #999 (0) @ WW
BID : AMSATBB5226
Read: GUEST
Subj: AMSAT-BB-digest V5 226
Path: IZ3LSV<IW0QNL<ON4HU<PY1AYH<PY1AYH<CX2SA
Sent: 100518/1827Z @:CX2SA.LAV.URY.SA #:60444 [Minas] FBB7.00e $:AMSATBB5226
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. AO-40 question(s) (Ron Overdrive)
2. Negai TLE update (Mineo Wakita)
3. AMSAT stamps 100% to AMSAT (Bob- W7LRD)
4. H-IIA Launch postponed (Mineo Wakita)
5. Re: Icom 9100 (tosca005@xxx.xxxx
6. AO-51 offline (Andrew Glasbrenner)
7. Re: Icom 9100 (Jonathan Guthrie)
8. Argentina Special Event Station (JoAnne Maenpaa)
9. Re: Icom 9100 (Edward R Cole)
10. Latest version SatPC32 (Dave Guimont)
11. Re: H-IIA Launch postponed (Mineo Wakita)
12. Please do not use AO-51 while eclipsed (Andrew Glasbrenner)
13. Re: Please do not use AO-51 while eclipsed (Andrew Glasbrenner)
14. Special Event (Peter Portanova)
15. AMSAT at the Dayton Hamvention Videos On-line Now
(JoAnne Maenpaa)
16. Re: AO-51 Still Off? (B J)
17. Re: Icom 9100 (tosca005@xxx.xxxx
18. Re: Latest version SatPC32 (George Henry)
----------------------------------------------------------------------
Message: 1
Date: Mon, 17 May 2010 15:50:08 -0400
From: Ron Overdrive <ronoverdrive@xxxxxxxx.xxx>
Subject: [amsat-bb] AO-40 question(s)
To: amsat-bb@xxxxx.xxx
Message-ID:
<AANLkTinMjrNmQEDhz4DEZQMP7dGKIpPB1-29Hk_vk8cR@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
So I'm considering putting together something that can work AO-40 and
similar satellites, but everywhere I look says you need 2 radios or full
duplex. Never really said why so I'm curious why its required to have 2
radios (which just seems more complex & expensive) or full duplex
to operate on this HEO. Couldn't I use a laptop and a data cable to control
a rig like a Yaesu FT-817 to line up the Rx and Tx?
------------------------------
Message: 2
Date: Tue, 18 May 2010 05:21:03 +0900
From: "Mineo Wakita" <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] Negai TLE update
To: <amsat-bb@xxxxx.xxx>
Message-ID: <81DE5F2586164F4FB4724DCD8D3D5125@xxxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-2022-jp";
reply-type=original
Negai
1 00000U 000000 10137.91382380 .00000000 00000-0 00000-0 0 000
2 00000 29.9660 238.9027 0000001 120.7250 357.1250 15.90813690 000
Tanegashima Web Camera
http://space.jaxa.jp/tnsc/webcam/index_e.shtml
Live Broadcast
http://www.jaxa.jp/countdown/f17/live/index_e.html
MITSUBISHI Heavy Industries,LTD. Countdown Report
http://h2a.mhi.co.jp/mission/results/f17countdown_en.html
JE9PEL, Mineo Wakita
------------------------------
Message: 3
Date: Mon, 17 May 2010 20:42:16 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
Subject: [amsat-bb] AMSAT stamps 100% to AMSAT
To: amsat-bb@xxxxx.xxx
Message-ID:
<1928414873.18532861274128936659.JavaMail.root@xxxxxxx.xxxxxxxxxx.xx.xxxx.xxxx
xxx.xxx>
Content-Type: text/plain; charset=utf-8
This will be my final push for selling these stamps.
In the spirit of the Dayton $5000 challenge I am offering on Ebay my AMSAT
framed stamps.? 100% of the proceeds go to AMSAT.? I expect nothing less
than a spirited bidding battle for these stamps.? Remember we deal with
rocket science, and rocket science is not cheap!? Now will that fine
gentleman from So. Cal. up the ante so he can have these along?with that
AO-40 (sobsob) bracket thingy?? Good luck to all who participate.
http://shop.ebay.com/?_from=R40&_trksid=p3984.m570.l1313&_nkw=amsat+stamps&_sa
cat=See-All-Categories
73 Bob W7LRD
?
------------------------------
Message: 4
Date: Tue, 18 May 2010 06:45:43 +0900
From: "Mineo Wakita" <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] H-IIA Launch postponed
To: <amsat-bb@xxxxx.xxx>
Message-ID: <465E3AD5C6314BFFAFB6CD1F15418434@xxxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-2022-jp";
reply-type=original
H-IIA Launch was pstponed in after today.
JE9PEL, Mineo Wakita
------------------------------
Message: 5
Date: 17 May 2010 17:38:31 -0500
From: tosca005@xxx.xxx
Subject: [amsat-bb] Re: Icom 9100
To: Sebastian <w4as@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <Gophermail.2.0.1005171738310.5727@xxxx.xx.xxx.xxx>
Content-Type: text/plain; format=flowed; charset=UTF-8
On May 16 2010, Sebastian wrote:
> Perhaps others such as DEMI, will see this as an opportunity and come up
> with alternatives?
Well, keep in mind that DEMI's strength is in transverters, and what is
hard to obtain for satellite operation from most common-place existing
equipment is a full-duplex transceiver. I don't think that DEMI is likely
to start building transceivers, but if you had a true full-duplex
transceiver, they would have transverters available to upgrade the radio to
the satellite bands needed.
Here's a thought: buy two SoftRocks for a lot less than the price of the
Flex 5000 -- one would be the v6.3Rx/Tx and the other could be the V9 Rx
only. This would net you two independent receivers and one transmitter, and
with clever wiring, selection of VHF & up transverters, and maybe a little
bit of software development, you could turn that into a software-defined
radio that would be capable of full-duplex cross-band operation. (The V9 Rx
would be the primary receiver, the receiver in the V6.3Rx/Tx would be
"spare" or "extra" or even ignored.) You'd need to configure the
transverters with "split IF", and use two coaxial relays to route the 28
MHz SoftRock IF Rx and Tx separately to the correct receive and transmit
transverters. A bit of innovation/homebrewing would be needed for
convenient band-switching, since you would need to switch two different
transverters into the correct "position" depending on the mode: V/U vs. U/V
vs. V/S vs. U/S vs. L/S vs. L/U vs. whatever other modes you wanted to
support. But 4 transverters (145, 435, 1269, and 2400 MHz) would give you
lots of satellite modes. Oh, don't forget there are some birds with HF
links and the SoftRock can do HF natively too...
If only I had the time to work on such a thing...
Ideally, the transverters would be dual frequency, so that you could tune
to 432 terrestrial or 435 satellite; 1269 satellite or 1296 terrestrial;
and 2304 terrestrial or 2400 satellite. Newer DEMI transverters with the
synthesized LO board can be configured that way, at least on the higher
bands. Then you'd have not only a kick-@xx satellite system, but also an
outstanding weak-signal terrestrial system.
Unfortunately, DEMI is once again revamping their lineup of products. Of
course, this is good for us who want the latest and best, but bad for us
who want something right NOW. Prices and specs are a little bit harder to
obtain from DEMI right now, but I expect that the wait will be worth it.
73 de W0JT
>On May 15, 2010, at 9:43 PM, Michael Tondee wrote:
>
>> I guess once I put the upcoming V/U module in my Flex 5000 I'll have
>> that amount of money in it but I won't have had to spend it all at once
>> and IMHO I'll have a markedly better radio. Also one that isn't outdated
>> a day after I walk out of the store with it.
>>
>> On 5/15/2010 7:22 PM, Mik Forsythe wrote:
>>> Just left Dayton a few hours ago. Icom said that it is basically a
>>> 7600 and a 910. It is bigger than the 910. It was in a display case so
>>> I can't tell you what the feel was like of the weight. Price is in the
>>> $4,000.00 range so that will kill a lot of the satellite market if you
>>> ask me.
------------------------------
Message: 6
Date: Mon, 17 May 2010 18:54:18 -0400
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] AO-51 offline
To: Amsat-BB <amsat-bb@xxxxx.xxx>
Message-ID: <4BF1C91A.9090402@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
AO-51 is offline for the short term future. When we get it back on,
we'll be on 145.92/435.3. If you hear it, feel free to use it.
73, Drew KO4MA
AMSAT-NA VP Operations
------------------------------
Message: 7
Date: Mon, 17 May 2010 18:22:40 -0500
From: Jonathan Guthrie <ka8kpn@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Icom 9100
To: amsat-bb@xxxxx.xxx
Message-ID: <4BF1CFC0.4070907@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Full duplex transceiver?
Back in the dim dawn of history, there used to be those who constructed
transmitters that were separate from receivers. Although constructing
such a thing is beyond me, I would like to see someone create a device
that was intended to feed the input of an upconverter. I can already
get general-coverage receivers at reasonable cost. If I'm computer
controlling one or the other of them, or both, there is no real
advantage to having the in the same physical box.
I can understand why such a thing might be less than perfectly useful
for those who want a portable station, but it would seem to me to be
just fine for someone who wants to operate a fixed station.
On 05/17/2010 05:38 PM, tosca005@xxx.xxx wrote:
> On May 16 2010, Sebastian wrote:
>
>> Perhaps others such as DEMI, will see this as an opportunity and come up
>> with alternatives?
>
> Well, keep in mind that DEMI's strength is in transverters, and what is
> hard to obtain for satellite operation from most common-place existing
> equipment is a full-duplex transceiver. I don't think that DEMI is likely
> to start building transceivers, but if you had a true full-duplex
> transceiver, they would have transverters available to upgrade the radio to
> the satellite bands needed.
>
> Here's a thought: buy two SoftRocks for a lot less than the price of the
> Flex 5000 -- one would be the v6.3Rx/Tx and the other could be the V9 Rx
> only. This would net you two independent receivers and one transmitter, and
> with clever wiring, selection of VHF& up transverters, and maybe a little
> bit of software development, you could turn that into a software-defined
> radio that would be capable of full-duplex cross-band operation. (The V9 Rx
> would be the primary receiver, the receiver in the V6.3Rx/Tx would be
> "spare" or "extra" or even ignored.) You'd need to configure the
> transverters with "split IF", and use two coaxial relays to route the 28
> MHz SoftRock IF Rx and Tx separately to the correct receive and transmit
> transverters. A bit of innovation/homebrewing would be needed for
> convenient band-switching, since you would need to switch two different
> transverters into the correct "position" depending on the mode: V/U vs. U/V
> vs. V/S vs. U/S vs. L/S vs. L/U vs. whatever other modes you wanted to
> support. But 4 transverters (145, 435, 1269, and 2400 MHz) would give you
> lots of satellite modes. Oh, don't forget there are some birds with HF
> links and the SoftRock can do HF natively too...
>
> If only I had the time to work on such a thing...
>
> Ideally, the transverters would be dual frequency, so that you could tune
> to 432 terrestrial or 435 satellite; 1269 satellite or 1296 terrestrial;
> and 2304 terrestrial or 2400 satellite. Newer DEMI transverters with the
> synthesized LO board can be configured that way, at least on the higher
> bands. Then you'd have not only a kick-@xx satellite system, but also an
> outstanding weak-signal terrestrial system.
>
> Unfortunately, DEMI is once again revamping their lineup of products. Of
> course, this is good for us who want the latest and best, but bad for us
> who want something right NOW. Prices and specs are a little bit harder to
> obtain from DEMI right now, but I expect that the wait will be worth it.
>
> 73 de W0JT
>
>> On May 15, 2010, at 9:43 PM, Michael Tondee wrote:
>>
>>> I guess once I put the upcoming V/U module in my Flex 5000 I'll have
>>> that amount of money in it but I won't have had to spend it all at once
>>> and IMHO I'll have a markedly better radio. Also one that isn't outdated
>>> a day after I walk out of the store with it.
>>>
>>> On 5/15/2010 7:22 PM, Mik Forsythe wrote:
>>>> Just left Dayton a few hours ago. Icom said that it is basically a
>>>> 7600 and a 910. It is bigger than the 910. It was in a display case so
>>>> I can't tell you what the feel was like of the weight. Price is in the
>>>> $4,000.00 range so that will kill a lot of the satellite market if you
>>>> ask me.
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
>
>
!DSPAM:117,4bf1cfd4170036849314807!
------------------------------
Message: 8
Date: Mon, 17 May 2010 19:56:39 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
Subject: [amsat-bb] Argentina Special Event Station
To: <amsat-bb@xxxxx.xxx>
Message-ID: <000001caf624$fa3eddc0$eebc9940$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hello everyone,
Waiting for the next ANS weekend news cycle will miss this event:
DXNL 1676 - May 19, 2010 DX Newsletter a free and weekly service of DARC
Committee "DX and HF contesting"
ARGENTINA, SPECIAL EVENT STATIONS
The "Radio Club Ushuaia" (LU8XW) is planning an activity from the city
Tolhuin (SA-008, WAP WACA Ref ARG-23) to celebrate its 25th anniversary
Operation will take place in SSB, CW, PSK, RTTY and via satellites from May
22, 0100 UTC, until May 24, 0300 UTC. QSLs via WD9EWK or LoTW. All QSOs
count for the "Radio Club Ushuaia Permanent Diploma". Further information is
available via e-mail to lu8xw@xxxxx.xxx.xx or you can check their website
at: http://www.lu8xw.com.ar
Hope this helps someone catch a good one!
--
73 de JoAnne K9JKM
k9jkm@xxxxx.xxx
Editor, AMSAT News Service
Copy Editor, AMSAT Journal
------------------------------
Message: 9
Date: Mon, 17 May 2010 17:31:35 -0800
From: Edward R Cole <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Icom 9100
To: tosca005@xxx.xxxx Sebastian <w4as@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <201005180131.o4I1Vapo001134@xxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 02:38 PM 5/17/2010, tosca005@xxx.xxx wrote:
>On May 16 2010, Sebastian wrote:
>
> > Perhaps others such as DEMI, will see this as an opportunity and come up
> > with alternatives?
>
>Well, keep in mind that DEMI's strength is in transverters, and what is
>hard to obtain for satellite operation from most common-place existing
>equipment is a full-duplex transceiver. I don't think that DEMI is likely
>to start building transceivers, but if you had a true full-duplex
>transceiver, they would have transverters available to upgrade the radio to
>the satellite bands needed.
Completely doable with current xvtrs. Tell them what frequencies you want.
>Here's a thought: buy two SoftRocks for a lot less than the price of the
>Flex 5000 -- one would be the v6.3Rx/Tx and the other could be the V9 Rx
>only. This would net you two independent receivers and one transmitter, and
>with clever wiring, selection of VHF & up transverters, and maybe a little
>bit of software development, you could turn that into a software-defined
>radio that would be capable of full-duplex cross-band operation. (The V9 Rx
>would be the primary receiver, the receiver in the V6.3Rx/Tx would be
>"spare" or "extra" or even ignored.) You'd need to configure the
>transverters with "split IF"
Huh? Why? Put a xvtr for the uplink band on the Tx and another xvtr
for the downlink for the Rx.
>, and use two coaxial relays to route the 28
>MHz SoftRock IF Rx and Tx separately to the correct receive and transmit
>transverters.
I thought you had two separate Softrocks, so why the relays?
> A bit of innovation/homebrewing would be needed for
>convenient band-switching, since you would need to switch two different
>transverters into the correct "position" depending on the mode: V/U vs. U/V
>vs. V/S vs. U/S vs. L/S vs. L/U vs. whatever other modes you wanted to
>support. But 4 transverters (145, 435, 1269, and 2400 MHz) would give you
>lots of satellite modes.
four xvtrs would give you every conceivable combination of up and
down link: V/U, U/V, V/L*, L/V, V/S, S/V, U/L*, L/U, U/S, S/U, L/S, S/L*
* These modes are not allowed for Amateur Radio space-coms.
If each xvtr was configured for separate Rx and Tx antenna and IF
connections the configuration tree would be simpler. I count nine
configurations (excluding HF bands).
If eighteen coax relays seem a bit much, make a coax patch panel and
use coax jumpers to configure for the mode you want.
> Oh, don't forget there are some birds with HF
>links and the SoftRock can do HF natively too...
>
>If only I had the time to work on such a thing...
>
>Ideally, the transverters would be dual frequency, so that you could tune
>to 432 terrestrial or 435 satellite; 1269 satellite or 1296 terrestrial;
>and 2304 terrestrial or 2400 satellite.
With the newest xvtrs using PLL in place of xtal oscillators; this is
a dc switch to shift LO's. I am installing PLL's into my 1296 and
3400 DEMI xvtrs.
>Newer DEMI transverters with the
>synthesized LO board can be configured that way, at least on the higher
>bands. Then you'd have not only a kick-@xx satellite system, but also an
>outstanding weak-signal terrestrial system.
DEMI is planning for PLL from VHF up (when they can get to it). PLL
available now 1296 and up.
>Unfortunately, DEMI is once again revamping their lineup of products. Of
>course, this is good for us who want the latest and best, but bad for us
>who want something right NOW. Prices and specs are a little bit harder to
>obtain from DEMI right now, but I expect that the wait will be worth it.
Prices are announced on the webpage. Some of the xvtrs are shipping
in June (I have 144/28 ordered). They are shipping assembled units
first, then will offer kits later in the summer.
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
EME: 144-600w, 432-100w, 1296-60w, 3400-fall 2010
DUBUS Magazine USA Rep dubususa@xxxxxxx.xxx
======================================
------------------------------
Message: 10
Date: Mon, 17 May 2010 22:08:09 -0700
From: Dave Guimont <dguimon1@xxx.xx.xxx>
Subject: [amsat-bb] Latest version SatPC32
To: amsat-bb@xxxxx.xxx
Message-ID: <24.7D.28303.5B022FB4@xxxxxxxxxxxxx.xxxx.xx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Yesterday I downloaded and installed the latest version of Erich's
wonderful program on a newer PC, XP.
I've been using an older version of his excellent program for as many
years as it has been in existence.
I made a couple of contacts on the latest version today, and was
surprised when an "audible" rang out!!
I'm sure I can find an explanation in his outstanding documentation,
but can someone tell me what it is saying? My 88 year old ears
couldn't decipher it as I have to crank up the gain to hear my contact...
73, Dave, WB6LLO
dguimon1@xxx.xx.xxx
Disagree: I learn....
Pulling for P3E...
------------------------------
Message: 11
Date: Tue, 18 May 2010 19:50:33 +0900
From: "Mineo Wakita" <ei7m-wkt@xxxxxxxxx.xx.xx>
Subject: [amsat-bb] Re: H-IIA Launch postponed
To: <amsat-bb@xxxxx.xxx>
Message-ID: <CB15C6FD4E3F45A8AEA61CC3884A6A11@xxxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-2022-jp";
reply-type=original
Launch: 20 May 2010, 21:58:22UTC
http://www.jaxa.jp/index_e.html
JE9PEL, Mineo Wakita
------------------------------
Message: 12
Date: Tue, 18 May 2010 07:15:37 -0400
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Please do not use AO-51 while eclipsed
To: Amsat-BB <amsat-bb@xxxxx.xxx>, ans-editor@xxxxx.xxx
Message-ID: <4BF276D9.5070609@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
We've turned the repeater back on on AO-51, along with the PL. I have a
favor to ask of our Southern Hemisphere users, including those in South
America, Southern Africa, Australia, and New Zealand. Please avoid using
AO-51 while the satellite is eclipsed. Most tracking programs indicate
illuminated or eclipsed states, and it can always be found by whether
the footprint of the satellite is crossing or in contact with the
footprint of the sun. Generally this is occurring when the satellite is
south of 30 degrees latitude at present.
I realize this is a large favor to ask, but the alternative right now is
moving to a scheduled type operation, which I would like to avoid.
Please pass this to your friends, other users you know, and your
national satellite email lists and forums.
Thank you and 73,
Drew KO4MA
AMSAT-NA VP Operations
------------------------------
Message: 13
Date: Tue, 18 May 2010 07:32:23 -0400
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Please do not use AO-51 while eclipsed
To: Amsat-BB <amsat-bb@xxxxx.xxx>, ans-editor@xxxxx.xxx
Message-ID: <4BF27AC7.8000302@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Andrew Glasbrenner wrote:
> Generally this is occurring when the satellite is
> south of 30 degrees latitude at present.
That should read "south of 30 degrees south latitude"...sorry.
73, Drew KO4MA
------------------------------
Message: 14
Date: Tue, 18 May 2010 08:46:42 -0400
From: Peter Portanova <roic@xxxxxxxxx.xxx>
Subject: [amsat-bb] Special Event
To: amsAT-BB@xxxxx.xxx
Message-ID: <9EF4543C38924FB4B53F700C4AE431AF@xxxx>
Content-Type: text/plain; charset=iso-8859-1
Hello,
I want to thank all the stations that contacted W2GSB/APM on AO-27 this past
Saturday, we had a group of Amateur Operators that heard the pass, here is
one e-mail that is typical when you do a live presentation.
73's Pete
WB2OQQ
www.massapequanyweather.com
Hi Pete,
I enjoyed working with you on Saturday at the Air Power Museum.
A person can read all the info in the world, but there's nothing like seeing
the equipment work in real life.
I'm hooked. I'll be ordering my antenna this week.
See you soon,
73 - George
K2KVI
------------------------------
Message: 15
Date: Tue, 18 May 2010 08:37:04 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
Subject: [amsat-bb] AMSAT at the Dayton Hamvention Videos On-line Now
To: <amsat-bb@xxxxx.xxx>
Message-ID: <001101caf68f$3488d7a0$9d9a86e0$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hello Everyone,
Thanks to David Jordan, AA4KN and David Larsen, KK4WW links to two YouTube
videos of AMSAT at the Dayton Hamvention can be viewed by clicking the links
at http://www.amsat.org.
+ AMSAT Treasurer, Keith Baker, KB1SF describes AMSAT's efforts
in Cubesat development.
+ AMSAT VP User Services, and AMSAT Project Manager for ARISSat-1,
Gould Smith, WA4SXM discusses ARISSat-1 in detail.
Also, while you're on the amsat page, scroll down for the latest news from
the AO-51 Control Team.
--
73 de JoAnne K9JKM
k9jkm@xxxxx.xxx
Editor, AMSAT News Service
Copy Editor, AMSAT Journal
------------------------------
Message: 16
Date: Tue, 18 May 2010 07:11:55 -0700 (PDT)
From: B J <top_gun_canada@xxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 Still Off?
To: amsat-bb@xxxxx.xxx
Message-ID: <189808.84046.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
I listened and called for over 5 minutes starting at 1400 UTC.? I didn't
hear anything here in DO33.
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 17
Date: 18 May 2010 11:00:28 -0500
From: tosca005@xxx.xxx
Subject: [amsat-bb] Re: Icom 9100
To: Edward R Cole <kl7uw@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <Gophermail.2.0.1005181100280.4949@xxxx.xx.xxx.xxx>
Content-Type: text/plain; format=flowed; charset=UTF-8
On May 17 2010, Edward R Cole wrote:
>At 02:38 PM 5/17/2010, tosca005@xxx.xxx wrote:
>>
>>Here's a thought: buy two SoftRocks for a lot less than the price of the
>>Flex 5000 -- one would be the v6.3Rx/Tx and the other could be the V9 Rx
>> only.
>Huh? Why? Put a xvtr for the uplink band on the Tx and another xvtr
>for the downlink for the Rx.
Because the SoftRock v6.3Rx/Tx is half-duplex only. It receives OR it
transmits, but doesn't do both at the same time. So my proposal is that an
Rx/Tx unit provides the transmit, and a completely separate Rx only model
provides the receive.
>>, and use two coaxial relays to route the 28
>>MHz SoftRock IF Rx and Tx separately to the correct receive and transmit
>>transverters.
>
>I thought you had two separate Softrocks, so why the relays?
Not an Rx/Tx relay. What I was imagining (and similar to what I am building
myself) uses a single pole, 6-position coaxial SMA relay. For satellite use
(full-duplex), the Tx port goes to the common, and the Tx port of 6
different transverters go onto the six selectable ports. The Rx port goes
to a second 6-way relay common, and the six poles go to the Rx side of 6
different bands.
Six-pole relays are hard to find, you might find it easier to come up with
4- pole relays, but I snatched up a bunch of six-pole relays from eBay a
few years back. In fact, i snatched up twice as many as I really wanted at
the time, because my regular auction looked to be in jeopardy of losing, so
I bid on a Buy-it-now auction, and of course, won both.
Four-pole relays would be plenty for V, U, L, and S bands in all legal
combinations.
In my application for terrestrial use, one 6-pole relay goes to a 10M SDR
common, and the 6 poles go to (1) HF, (2) 50 MHz Xvt, (3) 144 MHz Xvt, (4)
222 MHz Xvt, (5) 432 MHz Xvt, (6) to a special 2M-10M intermediate Xvt,
which goes to another 6-pole relay, and from there to the 6 higher bands:
902, 1296, 2304, 3456, 5760, and 10368 that all need a 2M IF instead of a
10M IF.
>> A bit of innovation/homebrewing would be needed for
>>convenient band-switching, since you would need to switch two different
>> transverters into the correct "position" depending on the mode: V/U vs.
>> U/V
>>vs. V/S vs. U/S vs. L/S vs. L/U vs. whatever other modes you wanted to
>>support. But 4 transverters (145, 435, 1269, and 2400 MHz) would give you
>>lots of satellite modes.
>
>four xvtrs would give you every conceivable combination of up and
>down link: V/U, U/V, V/L*, L/V, V/S, S/V, U/L*, L/U, U/S, S/U, L/S, S/L*
>* These modes are not allowed for Amateur Radio space-coms.
>
>If each xvtr was configured for separate Rx and Tx antenna and IF
>connections the configuration tree would be simpler. I count nine
>configurations (excluding HF bands).
>If eighteen coax relays seem a bit much, make a coax patch panel and
>use coax jumpers to configure for the mode you want.
One 4-pole relay for the Tx side, and one 4-pole relay for the Rx side
(well, you only need 3-pole since L-band is not an acceptable downlink) and
two rotary switches to select the Rx band and the Tx band would do it. But
wouldn't you prefer to be able to just push a button labelled "L/S" and
have the Tx and Rx relays switched to the appropriate band positions?
That's what I ment with innovation / homebrewing for convenient band
switching.
>>Ideally, the transverters would be dual frequency, so that you could tune
>>to 432 terrestrial or 435 satellite; 1269 satellite or 1296 terrestrial;
>>and 2304 terrestrial or 2400 satellite.
>
>With the newest xvtrs using PLL in place of xtal oscillators; this is
>a dc switch to shift LO's. I am installing PLL's into my 1296 and
>3400 DEMI xvtrs.
Yeah, I bought one for my 10368 MHz transverter, but haven't gotten around
to installing it in place of the MicroLO board. I even have a 10 MHz
rubidium standard to lock it onto the correct frequency. More projects than
time to work on them!
>>Newer DEMI transverters with the
>>synthesized LO board can be configured that way, at least on the higher
>>bands. Then you'd have not only a kick-@xx satellite system, but also an
>>outstanding weak-signal terrestrial system.
>
>DEMI is planning for PLL from VHF up (when they can get to it). PLL
>available now 1296 and up.
That's good to know. I realized they were working down the bands in their
quest to redesign their transverters to all work with the PLL board. I
didn't know that they already had 1269/1296 and 2304/2400 PLL transverter
configurations ready.
>>Unfortunately, DEMI is once again revamping their lineup of products. Of
>>course, this is good for us who want the latest and best, but bad for us
>>who want something right NOW. Prices and specs are a little bit harder to
>>obtain from DEMI right now, but I expect that the wait will be worth it.
>
>Prices are announced on the webpage. Some of the xvtrs are shipping
>in June (I have 144/28 ordered). They are shipping assembled units
>first, then will offer kits later in the summer.
Per the web site:
No prices currently listed for 6M through 70cm bands. "in redevelopment"
No PLL models announced for 33cm and 23cm yet.
All models from 13cm and higher frequency now listed as PLL models with
pricing information.
You may have more information than I do on that. I pretty much stay chained
to my desk here in the sub-basement most of the day.,.
73 de W0JT
------------------------------
Message: 18
Date: Tue, 18 May 2010 11:20:53 -0700 (PDT)
From: George Henry <ka3hsw@xxx.xxx>
Subject: [amsat-bb] Re: Latest version SatPC32
To: AMSAT <amsat-bb@xxxxx.xxx>
Message-ID: <325974.34589.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
If you have "Voice announce" enabled in Setup > Options, just before AOS, it
will say "Satellite A O fifty one rising" (or whatever satellite happens to
be coming over the horizon...).? Under Setup there is also a Speech Setup
option to let you select from several voices, and adjust the speed, volume,
and pitch of the announcements.
George, KA3HSW
----- Original Message ----
> From: Dave Guimont <dguimon1@xxx.xx.xxx>
> To: amsat-bb@xxxxx.xxx
> Sent: Tue, May 18, 2010 12:08:09 AM
> Subject: [amsat-bb] Latest version SatPC32
>
> Yesterday I downloaded and installed the latest version of Erich's
wonderful
> program on a newer PC, XP.
I've been using an older version of his
> excellent program for as many
years as it has been in existence.
I
> made a couple of contacts on the latest version today, and was
surprised
> when an "audible" rang out!!
I'm sure I can find an explanation in his
> outstanding documentation,
but can someone tell me what it is saying??
> My 88 year old ears
couldn't decipher it as I have to crank up the gain to
> hear my contact...
? ? ? ? ? ? 73,
> Dave, WB6LLO
? ? ? ? ? ? ? ? > ymailto="mailto:dguimon1@xxx.xx.xxxx
> href="mailto:dguimon1@xxx.xx.xxxx>dguimon1@xxx.xx.xxx
? ?
> ? ? ? ? ? ? ? ? Disagree: I
> learn....
? ? ? ? ? ? ? Pulling for
> P3E...
------------------------------
_______________________________________________
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 5, Issue 226
****************************************
Read previous mail | Read next mail
| |
