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CX2SA > SATDIG 05.01.12 01:04l 851 Lines 27768 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: What Happened to the PacSats? (Andre)
2. Re: Preliminary Keplerarian elements for Vega launch
(g0mrf@xxx.xxxx
3. EL97 on 7January AO-27 (John Papay)
4. Re: What Happened to the PacSats? (Andre)
5. Re: What Happened to the PacSats? (Clayton Coleman W5PFG)
6. ARRISAT-1 Last Known 2-way Contact (Rob Styles)
7. Re: ARISSat-1 Last Known 2-way Contact (Rob Styles)
8. Re: Need East Coast (Mervyn Hecht)
9. NEW ENGLAND (Mervyn Hecht)
10. HO-68 (John Mac)
11. Re: What Happened to the PacSats? (Andrew Glasbrenner)
12. Re: Need East Coast (Dave Webb KB1PVH)
13. Re: What Happened to the PacSats? (G0MRF@xxx.xxxx
14. Re: Looking for a G3RUH dish (K5OE)
15. Re: HO-68 (Stephen E. Belter)
16. Re: HO-68 (Trevor .)
17. Re: What Happened to the PacSats? (Francisco Costa, CT1EAT)
----------------------------------------------------------------------
Message: 1
Date: Wed, 04 Jan 2012 21:02:52 +0100
From: Andre <sats@xxxxxx.xxxxx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: What Happened to the PacSats?
Message-ID: <4F04B06C.3010206@xxxxxx.xxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
There are still the aprs sats like iss pcsat go-32 and maybe some more I
forgot.
offcourse this is direct digpeating and not store and forward but can
still be a lot fun.
73 Andre PE1RDW
Op 4-1-2012 20:27, Mark L. Hammond schreef:
> Hi Chris,
>
> The golden days of the Pacsat Store/forward operations appear to be
> gone for now, if not for good...I am still addicted, and wish everyday
> for a rebirth...
>
> The old pacsat birds are up there, just not functional. For a while a
> few years ago, we had AO-16 running in voice mode (FM up, side band
> down)! That was fun. But it only works when the bird is warm from
> full sunlight--which won't occur for like 10 more years...sigh.
>
> LO-19 emits a very low level carrier (most can't see it, or deny it's
> there...but it is ;) )
> WO-18 is like AO-16--transmitter won't stay on.
> IO-26 is stuck in bootloader mode, emitting bursts of telemetry from
> time to time.
>
> Now, the GOOD news--read about Delphi3C and ISIS. There is some
> digital downloading/telemetry that will be available perhaps by the
> end of the year on a few new birds. Then, add Fucube-1 and -2, and
> there will be more digital telemetry to collect.
>
> But the Pacsat BBS operations as you remember them don't exist now.
> But there IS a lot of telemetry to be collected. The good news is
> that many of these will be using software based modems, available free
> of charge!
>
> 73,
>
> Mark N8MH (admitted digital nut)
>
> On Mon, Jan 2, 2012 at 10:55 PM, Chris Maness<chris@xxxxxxxxxxx.xxx> wrote:
>> About 12 years ago, I was really into amateur radio satellites (the
>> analog birds). I always wanted to try the PacSats, but I was a
>> college student, and could not afford all of the necessary hardware.
>> I tried to do it in software (and ended up falling in love with
>> Linux). Now I have a good source of income, and was looking into
>> dabbling in the PacSats, but looking at the Amsat website, it looks
>> like none of the old birds are up. So are there any plans to restore
>> store and forward messaging capability in future ham radio birds? Is
>> this currently still possible and I am just missing something?
>>
>> Thanks,
>> Chris Maness
>> KQ6UP
>> _______________________________________________
>> 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: 2
Date: Wed, 4 Jan 2012 15:16:05 -0500 (EST)
From: g0mrf@xxx.xxx
To: glasbrenner@xxxxxxxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Preliminary Keplerarian elements for Vega
launch
Message-ID: <8CE9934D22B3071-15D8-58929@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Hi Drew.
If you would like to have a look at the Vega orbit, find a LEO sat in NOVA
and change the following:
Inclination 70 degrees
Mean motion 14.05
Eccentricity 0.079
It does not show everything correctly because of launch time but it does
show coverage and an orbital period near 105 minutes.
Thanks
David G0MRF
-----Original Message-----
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Sent: Wed, 4 Jan 2012 18:21
Subject: [amsat-bb] Preliminary Keplerarian elements for Vega launch
Does anyone have any preliminary keps for this one? I'm not so worried about
whether they are correct with respect to launch/pass times, but just for a
generic orbit of the same dimensions. I think it's supposed to be
350x1500km, 71
degree inclination, or thereabouts?
73, Drew KO4MA
_______________________________________________
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: Wed, 04 Jan 2012 15:17:16 -0500
From: John Papay <john@xxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] EL97 on 7January AO-27
Message-ID: <498060.12548.qm@xxxxxxx.xxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
I've had several requests for EL97. I will plan to be on the
AO-27 pass at 1824z or so on Saturday, 7 January 2012. This
pass should work well for the eastern half of the US. If there
are any west coast stations that need it, I will stay for the
next AO-27 pass at 2005z. If you can't make the 1824z pass but
want to try the next pass please email me. Otherwise I'll just
operate on the 1824z pass.
73,
John K8YSE/4
------------------------------
Message: 4
Date: Wed, 04 Jan 2012 21:57:36 +0100
From: Andre <sats@xxxxxx.xxxxx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: What Happened to the PacSats?
Message-ID: <4F04BD40.8090503@xxxxxx.xxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Op 4-1-2012 21:29, Chris Maness schreef:
> I have been looking into using the APRS digipeater on the ISS to send
> txt messages. Is this possible? I go hiking and camping a lot, and
> it would be cool to at least digipeat through the ISS. What would be
> even better is an email sat. Store and forward to gatway stations
> that relay emails like winlink does. This would be great for
> outbackers and people in developing areas that don't have this
> ability. The gateway station could approve and foreward inbound email
> too so that way the messages are sent like 3rd party traffic. No spam
> and junk like that.
>
> Just a Thought,
> Chris Maness
> KQ6UP
Short emails are posible trough iss
http://wa8lmf.net/bruninga/aprs/sset-email.GIF
it's one way only but good enough for checkin messages, there are enough
monitoring stations to cover most needs, africa might be a bit hard at
places but even there, there should be posibileties.
73 Andre PE1RDW
73 Andre PE1RDW
------------------------------
Message: 5
Date: Wed, 4 Jan 2012 15:00:16 -0600
From: Clayton Coleman W5PFG <kayakfishtx@xxxxx.xxx>
To: APBIDDLE@xxxxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: What Happened to the PacSats?
Message-ID:
<CAPovOwefVpuFN2Gkxq6bBQ--85cFFfUScgn9v4OGrGX=r2VZPw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
I've been wondering if the issue is not lack of interest but lack of
education and marketing. If newer hams were to see and understand the
benefits of a store-and-forward PacSat, I believe you'd see a level of
support as strong as days passed. I have been playing with
terrestrial packet and digital modes for 20 years and the thought of
exchanging messages via satellite excites me. Unfortunately I did not
partake in the PacSats' capabilities when they were functional.
73
Clayton
W5PFG
On Wed, Jan 4, 2012 at 1:24 PM, Alan P. Biddle <APBIDDLE@xxxxxx.xxx> wrote:
> Chris,
>
> Like you, I really enjoyed the old digital birds. ?However, the interest in
> that has fallen off. ?AO-51 did have a very nice system, and a few other
> satellites have had more traditional Packet BBS capabilities. ?The interest
> just does not seem to be there, when the old satellites died, there were not
> replaced.
>
> 73s,
>
> Alan
> WA4SCA
>
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of Chris Maness
> Sent: Monday, January 02, 2012 9:56 PM
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] What Happened to the PacSats?
>
> About 12 years ago, I was really into amateur radio satellites (the
> analog birds). ?I always wanted to try the PacSats, but I was a
> college student, and could not afford all of the necessary hardware.
> I tried to do it in software (and ended up falling in love with
> Linux). ?Now I have a good source of income, and was looking into
> dabbling in the PacSats, but looking at the Amsat website, it looks
> like none of the old birds are up. ?So are there any plans to restore
> store and forward messaging capability in future ham radio birds? ?Is
> this currently still possible and I am just missing something?
>
> Thanks,
> Chris Maness
> KQ6UP
> _______________________________________________
> 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: 6
Date: Wed, 4 Jan 2012 21:20:19 +0000
From: Rob Styles <robpegs@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] ARRISAT-1 Last Known 2-way Contact
Message-ID: <BLU0-SMTP171EB47D6A573FA12DD6ECEB1970@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Maybe this the last confirmed Two-way contact via Arrisat-1 ?
03/01/2012 15:20 2E0SQL-GW1FKY sent 55 rx 58-9
73
Rob M0TFO
------------------------------
Message: 7
Date: Wed, 4 Jan 2012 21:38:53 +0000
From: Rob Styles <robpegs@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: ARISSat-1 Last Known 2-way Contact
Message-ID: <BLU0-SMTP298792B7E233EDDFEBB88E9B1970@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Sorry had a sticky RRR
On 4 Jan 2012, at 21:20, Rob Styles wrote:
> Maybe this the last confirmed Two-way contact via ARISSat-1?
> 03/01/2012 15:20 2E0SQL-GW1FKY sent 55 rx 58-9
>
> 73
> Rob M0TFO
------------------------------
Message: 8
Date: Wed, 4 Jan 2012 14:09:07 -0800
From: Mervyn Hecht <mervynhecht@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Need East Coast
Message-ID: <985E6808-A073-41F4-A61D-43126E46C2AD@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Steve, maybe you could email me the calls of the people you worked and I
could contact them?
Merv
mervynhecht@xxxxx.xxx
------------------------------
Message: 9
Date: Wed, 4 Jan 2012 14:10:33 -0800
From: Mervyn Hecht <mervynhecht@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] NEW ENGLAND
Message-ID: <5AE96EF2-C6DB-461F-968A-C1D878505778@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
OK, maybe my last post was too general in asking about East Coast contacts.
If anyone is New York or New Jersey sees this message please contact me to
set up a schedule. Merv K)6E
------------------------------
Message: 10
Date: Thu, 5 Jan 2012 09:05:37 +1100
From: John Mac <vk2fak@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] HO-68
Message-ID:
<CANiF7qMi9T-LLCW2zRftUQA-b34RB04UJfVypjbaALzof8g10w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi all...
I am wondering with the lack of Operational Satellites up at the
moment.....what is actually wrong with HO-68...
All I could find out is that it had a scheduling problem, so what does
this mean...its hardware or software...?
With the limited life of these birds I would think they would
implement something to at least get part of it working...if at all
possible.
John
------------------------------
Message: 11
Date: Wed, 4 Jan 2012 17:16:36 -0500 (GMT-05:00)
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: APBIDDLE@xxxxxxx.xxxx "'Chris Maness'" <chris@xxxxxxxxxxx.xxx>,
amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: What Happened to the PacSats?
Message-ID:
<10668997.1325715397119.JavaMail.root@xxxxxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Warning! My opinion follows:
Many of the pacsats were university sats built for missions similar to
today's cubesats. GO-32, the Korean ones, the University of Surrey ones,
Tiuansat, etc. They operated in the amateur bands, and were generally open
access to the store and forward parts, while also carrying out experiments,
imaging, and training.
Somewhere along the line, things went closed. While cubes have drawn down
the pool of these size and type sats being launched, they are still
happening, and without amateur two-way missions. Without malice, I'm going
to point to Edusat, and the Unisat series as the most visible of these in
recent memory. There are others also, including from the US and Japan.
The question we should be asking ourselves is what caused this? Is it
something hams did to put off the unis? Is it lack of involvement in the
early phases, or just lack of interest or understanding of what we might
provide such a program in return? How did we get to a point where a 25 or 50
kg satellite, using amateur frequencies, has no two way package in it? More
importantly, how do we get back to the way it was before?
Note I'm not disputing these programs right to exist, just that something
has changed, and it's in our self-interest to figure it out.
73, Drew KO4MA
-----Original Message-----
>From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
>Sent: Jan 4, 2012 2:24 PM
>To: 'Chris Maness' <chris@xxxxxxxxxxx.xxx>, amsat-bb@xxxxx.xxx
>Subject: [amsat-bb] Re: What Happened to the PacSats?
>
>Chris,
>
>Like you, I really enjoyed the old digital birds. However, the interest in
>that has fallen off. AO-51 did have a very nice system, and a few other
>satellites have had more traditional Packet BBS capabilities. The interest
>just does not seem to be there, when the old satellites died, there were not
>replaced.
>
>73s,
>
>Alan
>WA4SCA
>
>
>-----Original Message-----
>From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
>Behalf Of Chris Maness
>Sent: Monday, January 02, 2012 9:56 PM
>To: amsat-bb@xxxxx.xxx
>Subject: [amsat-bb] What Happened to the PacSats?
>
>About 12 years ago, I was really into amateur radio satellites (the
>analog birds). I always wanted to try the PacSats, but I was a
>college student, and could not afford all of the necessary hardware.
>I tried to do it in software (and ended up falling in love with
>Linux). Now I have a good source of income, and was looking into
>dabbling in the PacSats, but looking at the Amsat website, it looks
>like none of the old birds are up. So are there any plans to restore
>store and forward messaging capability in future ham radio birds? Is
>this currently still possible and I am just missing something?
>
>Thanks,
>Chris Maness
>KQ6UP
>_______________________________________________
>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: 12
Date: Wed, 4 Jan 2012 17:24:56 -0500
From: Dave Webb KB1PVH <kb1pvh@xxxxx.xxx>
To: Mervyn Hecht <mervynhecht@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Need East Coast
Message-ID:
<CAEMY9FcanwYr_TkAV1Wo01r=fXqoDaH0OKDSuFPC0nvOkV2=2g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Merv,
Maybe you could list the states you are looking to work.
Dave - KB1PVH
Sent from my Verizon Wireless DROID X
------------------------------
Message: 13
Date: Wed, 4 Jan 2012 17:35:10 -0500 (EST)
From: G0MRF@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: What Happened to the PacSats?
Message-ID: <3240f.2fb55fa.3c362e1e@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
Hi Clayton / Alan
Since the original launch of the store and forward satellites - Was it the
mid 1980s? -we've had all sorts of terrestrial methods of doing the same
thing. E-mail, texting, social media etc. All have depleted interest.
Arissat has (sorry...had...sob..) some very innovative technologies and the
digital voice announcements were particularly effective. Personally, in
an era of limited communication range from LEOs, I would really like to see
some experimental stored and forwarded voice messages. For example, Imagine
a 'transponder' that would allow 30 seconds of voice recording over the
mid-west USA combined with a command to allow the satellite to transmit that
message in 20 minutes time when it's over Europe. Sounds difficult, but a
CTCSS tone or DTMF could be used to tell the satellite what delay was
required before retransmission. I'm not sure the ARRL would like the idea
issuing
worked all continents awards for a QSO that takes 3 hours to complete, but
it would be fun.
73
David G0MRF
In a message dated 04/01/2012 21:08:55 GMT Standard Time,
kayakfishtx@xxxxx.xxx writes:
I've been wondering if the issue is not lack of interest but lack of
education and marketing. If newer hams were to see and understand the
benefits of a store-and-forward PacSat, I believe you'd see a level of
support as strong as days passed. I have been playing with
terrestrial packet and digital modes for 20 years and the thought of
exchanging messages via satellite excites me. Unfortunately I did not
partake in the PacSats' capabilities when they were functional.
73
Clayton
W5PFG
On Wed, Jan 4, 2012 at 1:24 PM, Alan P. Biddle <APBIDDLE@xxxxxx.xxx> wrote:
> Chris,
>
> Like you, I really enjoyed the old digital birds. However, the interest
in
> that has fallen off. AO-51 did have a very nice system, and a few other
> satellites have had more traditional Packet BBS capabilities. The
interest
> just does not seem to be there, when the old satellites died, there were
not
> replaced.
>
> 73s,
>
> Alan
> WA4SCA
>
>
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of Chris Maness
> Sent: Monday, January 02, 2012 9:56 PM
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] What Happened to the PacSats?
>
> About 12 years ago, I was really into amateur radio satellites (the
> analog birds). I always wanted to try the PacSats, but I was a
> college student, and could not afford all of the necessary hardware.
> I tried to do it in software (and ended up falling in love with
> Linux). Now I have a good source of income, and was looking into
> dabbling in the PacSats, but looking at the Amsat website, it looks
> like none of the old birds are up. So are there any plans to restore
> store and forward messaging capability in future ham radio birds? Is
> this currently still possible and I am just missing something?
>
> Thanks,
> Chris Maness
> KQ6UP
> _______________________________________________
> 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
_______________________________________________
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: 14
Date: Wed, 4 Jan 2012 17:37:34 -0500 (EST)
From: K5OE <k5oe@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Looking for a G3RUH dish
Message-ID:
<8CE994896723740-1874-6C1FD@xxxxxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Bob,
Regarding your Cu wire dish... you might look at the Tek Sharp dishes as an
easier alternative to "rolling your own." I picked one up on ebay about a
year ago and put it in my attic... waiting for amsat-dl :-)
http://www.plumdragon.com/teksharp/hr_AO-40_products.htm
Drew,
I have a spare PF dish about 60 cm, but it is steel, not aluminum like the
G3RUH. I used it on AO-40 for 24 GHz. Let me know off-list if you want it.
73,
Jerry, K5OE
---- previous message ----
You probably have one of the K5GNA "BBQ" dishes. The G3RUH is a solid round
spun dish.
73, Drew
-----Original Message-----
>From: Bob Bruninga <bruninga@xxxx.xxx>
>Sent: Jan 3, 2012 2:19 PM
>To: 'Andrew Glasbrenner' <glasbrenner@xxxxxxxxxx.xxx>, 'amsat-bb'
><amsat-bb@xxxxx.xxx>
>Subject: RE: [amsat-bb] Looking for a G3RUH dish
>
>> I'm looking for one of the 60cm G3RUH dishes
>
>Got one, (but not available).
>
>Questions: I measured reflector grid separation as .88 inches which works
>out to be about 0.18 wavelength. I always thought the grid had to be
>tighter than 0.1 inches to be an effective "surface".
>
>Maybe the difference with almost double the spacing is not that significant?
>(especially for a steel one which would be quite heavy.
>
>Reason I am asking is that I also need another S band dish (at 70 MPH on the
>roof of a tracking van) and we are thinking about building one by using an
>old solid 6' TVRO dish as a form and laying in copper wire and soldering it
>to copper straps. With all that labor, I'd not want to get the spacing
>wrong.
>
>Bob, Wb4APR
>
------------------------------
Message: 15
Date: Wed, 4 Jan 2012 17:39:54 -0500
From: "Stephen E. Belter" <seb@xxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: HO-68
Message-ID:
<51668A33220E754EABE6583357ECEE2D01BA220897@xxxxxxxx.xxxxxx.xxxxx>
Content-Type: text/plain; charset="us-ascii"
John,
Alan Kung, BA1DU and CEO of CAMSAT was one of the speakers at the Dayton
AMSAT Forum. He reported that HO-68 is suffering from a bad relay or relay
driver that is used to switch from the beacon to the transponder. The
likelihood of recovery is low, but not zero.
Here is the explanation from Alan's slide. These are exact quotes, not my
interpretation:
-- The current situation is the transponders will be difficult to switch the
RF PA from beacon mode to transponder mode
-- The RF relay or its drive circuit is failing, it is a stick relay.
Probability of success of switch is probably a few tenth
-- On the other hand, up to now the both solar and lithium-ion batteries are
in very nice condition
-- The exhibitions of the thermal-control, onboard flight computer and TT&C
are also excellent.
73, Steve N9IP
--
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of John Mac
Sent: Wednesday, January 04, 2012 5:06 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] HO-68
Hi all...
I am wondering with the lack of Operational Satellites up at the
moment.....what is actually wrong with HO-68...
All I could find out is that it had a scheduling problem, so what does this
mean...its hardware or software...?
With the limited life of these birds I would think they would implement
something to at least get part of it working...if at all possible.
John
------------------------------
Message: 16
Date: Wed, 4 Jan 2012 22:45:39 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: HO-68
Message-ID:
<1325717139.75535.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
As I recall it was a problem with a relay.
73 Trevor M5AKA
--- On Wed, 4/1/12, John Mac <vk2fak@xxxxx.xxx> wrote:
> Hi all...
>
> I am wondering with the lack of Operational Satellites up
> at the
> moment.....what is actually wrong with HO-68...
>
> All I could find out is that it had a scheduling problem,
> so what does
> this mean...its hardware or software...?
>
> With the limited life of these birds I would think they
> would
> implement something to at least get part of it working...if
> at all
> possible.
>
> John
------------------------------
Message: 17
Date: Wed, 4 Jan 2012 22:50:25 -0000
From: "Francisco Costa, CT1EAT" <listas_ct1eat@xxxx.xx>
To: "Chris Maness" <chris@xxxxxxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: What Happened to the PacSats?
Message-ID: <E05E027678394BF6B37870B9D98F3336@xxxxxxxxxxxxxxx>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Hi Chris
IMHO Pacsat interest decrease at same
rate internet connections increase.
By early 90's, electronic messaging was
something new, and not available to ordinary
people, like us hams.
But now we can do it almost anywhere in the
world, for an infinite fraction of the price,
with minimal equipment.
We no longer need radios, antennas, pre-amp,
az/ev rotators, trackers, PC running 24h, etc.
No more need to wait for a 15 min pass,
stay in queue, miss our turn, go back to the
end, and wait for the the next pass for the
remaining 1 kb to complete the file...
Yes, it was fun (specialy to built and leave
the station working unatended), but those days
are over! Sorry.
73 F.Costa, CT1EAT
http://ct1eat.no.sapo.pt
----- Mensagem original -----
De: "Chris Maness" <chris@xxxxxxxxxxx.xxx>
Para: <amsat-bb@xxxxx.xxx>
Enviado: ter?a-feira, 3 de Janeiro de 2012 3:55
Assunto: [amsat-bb] What Happened to the PacSats?
> About 12 years ago, I was really into amateur radio satellites (the
> analog birds). I always wanted to try the PacSats, but I was a
> college student, and could not afford all of the necessary hardware.
> I tried to do it in software (and ended up falling in love with
> Linux). Now I have a good source of income, and was looking into
> dabbling in the PacSats, but looking at the Amsat website, it looks
> like none of the old birds are up. So are there any plans to restore
> store and forward messaging capability in future ham radio birds? Is
> this currently still possible and I am just missing something?
>
> Thanks,
> Chris Maness
> KQ6UP
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
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>
------------------------------
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End of AMSAT-BB Digest, Vol 7, Issue 9
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