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CX2SA > SATDIG 04.03.08 02:00l 724 Lines 25774 Bytes #999 (0) @ WW
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Today's Topics:
1. Re: recent AO-40 efforts?----- Original Message -----
(Andrew Glasbrenner)
2. AO51 college nights march 4th and March 27th (Dr. Jay Garlitz)
3. R: Re: recent AO-40 efforts? (Francesco Grappi)
4. Re: recent AO-40 efforts? (w7lrd(AT)comcast.net)
5. Efficient Planning of the FT-847 Memory Registers
(Gary Schuchardt)
6. Re: Efficient Planning of the FT-847 Memory Registers
(Alan P. Biddle)
7. Re: Efficient Planning of the FT-847 Memory Registers
(Anthony Monteiro)
8. AO-7 Web Logging (Alan)
9. Re: recent AO-40 efforts? (kc6uqh)
10. Re: recent AO-40 efforts? (John Becker, W?JAB)
11. Re: recent AO-40 efforts? (Vince Fiscus, KB7ADL)
12. Re: Very few passes (Robert Bruninga)
----------------------------------------------------------------------
Message: 1
Date: Sun, 2 Mar 2008 15:13:12 -0500
From: "Andrew Glasbrenner" <glasbrenner(AT)mindspring.com>
Subject: [amsat-bb] Re: recent AO-40 efforts?----- Original Message
-----
To: "Peter Guelzow" <peter.guelzow(AT)kourou.de>
Cc: AMSAT-BB(AT)amsat.org
Message-ID: <4FA4ED1C02DB42A99319476CCC5991D2(AT)Andrewlaptop>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
> 73s Peter
>
> BTW: Are there still people listening for AO-10?
All the time, at least once a week.
Thanks for the explanation and post Peter.
73, Drew KO4MA
------------------------------
Message: 2
Date: Sun, 2 Mar 2008 15:36:16 -0500
From: "Dr. Jay Garlitz" <drjay(AT)gatordental.com>
Subject: [amsat-bb] AO51 college nights march 4th and March 27th
To: <amsat-bb(AT)amsat.org>
Message-ID: <00ed01c87ca5$10a2ec60$6602a8c0(AT)home>
Content-Type: text/plain; charset="us-ascii"
Per the AO51 schedule for March a second V/U repeater (Uplink: 145.880 MHz
FM, NO PL Tone Downlink: 435.150 MHz FM) will be active at various times
during the month. College Club and personal student stations have planned
college nights from 23:30 UTC to 04:00 UTC and will be active on this AO51
repeater March 4th and March 27th. Make sure to spread the word to any
college students or club members that you might know.
We hope all AO51 users will come on to the repeater and work the college
stations. If you are a college alumnus please add your school and year to
your report/exchange (i.e. University of Florida, 1978 in my case). The
repeater will be less busy than unusual and there should be ample time to
exchange this extra information.
The Entry line needed to append your SatPC32 doppler.sqf file is:
AO-51,435150,145880,FM,FM,Nor,0,0,Voice V/U
Also look for college stations to be on SO50, AO7, VO52, and GO32 on those
same evenings. I look forward to seeing you on the birds meeting the
students. Your involvement and mentorship is appreciated.
Yours in assisting the next generation of leaders in Amateur Radio and AMSAT
73, Dr. Jay Garlitz, AA4FL
Faculty Advisor, Gator Amateur Radio Club at UF, club station W4DFU
www.gatorradio.org <http://www.gatorradio.org/>
jgarlitz(AT)ufl.edu
------------------------------
Message: 3
Date: Sun, 2 Mar 2008 21:42:17 +0100
From: "Francesco Grappi" <f.grappi(AT)tin.it>
Subject: [amsat-bb] R: Re: recent AO-40 efforts?
To: <amsat-bb(AT)amsat.org>
Message-ID: <000001c87ca5$e7ee2090$0201a8c0(AT)master>
Content-Type: text/plain; charset="us-ascii"
Hi Peter,
thank you very much for the informations regarding AO-40
and your effort on this.....fingers crossed....
73"
Frank IW4DVZ
-----Messaggio originale-----
Da: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org] Per
conto
di Peter Guelzow
Inviato: domenica 2 marzo 2008 20.32
A: kd6ire(AT)sbcglobal.net
Cc: AMSAT-BB(AT)amsat.org
Oggetto: [amsat-bb] Re: recent AO-40 efforts?
Hi Don and Auke,
> I believe AO-40 was designed by AMSAT to not allow both sets of batteries
to
> be disconnected. We should have learned with AO-7 that every satellite
> should be able to work on solar power alone as eventually all batteries
will
> fail. It is my understanding that the only chance we have is if the
> batteries burn open some day in the future.
>
This is not the problem... you can not compare a spacecraft like AO-7
with Phase 3 satellites...
AO-40 would not work just from solar power and without batteries.
The battery works as big capacitor for the transponders. In mean, the
power budget would be positive, but during high peak on the transponder
due to load, the transponder would drain current from the battery as the
peak power would not be sufficient for the generated power from the
solar cells. Without the battery, the transponder would be very
unstable as the voltage breaks down. And even worse, the voltage break
down would cause the IHU (onboard computer) to make a power down reset.
So we could probably only have telemetry beacon, nothing else...
During each eclipse pass, sometimes every orbit, the computer would also
reset again and again.
Since all the software must be reloaded from ground, this is a task we
could not provide every day.
But without computer, we would quickly loose orientation of the
spacecraft and thus, the solar panelsl would quickly point away from the
sun.. and that's is it..
Look at AO-10 to understand what I mean..
AO-40 was never designed to work without battery and this would also
make totally no sense..
The problem was, that the Main Battery died so quickly in a totally
catastrophic failure, which no one could have foreseen.
Time for the command stations was too short to charge the Auxiliary
Battery and do the switch over...
Command stations have tried to send command to the spacecraft since the
battery failure, but the rate of these attempts decreased over the last
couple of years.
We at AMSAT-DL currently plan to make a new attempt using our 20m dish
from Bochum. There we would have a lot of power and very good ears too..
However, I can not give an exact date when the will happen. Also it may
need several weeks of attempts, since the attitude of AO-40 in regard to
the sun is unknown.
If we try at the wrong time, the solar cells may not generate any power
due to bad sun angle..
We will indeed keep you all informed when we do our first try to recover
AO-40 from Bochum...
73s Peter
BTW: Are there still people listening for AO-10?
> -----Original Message-----
> From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org]
On
> Behalf Of Auke de Jong, VE6PWN
> Sent: Saturday, March 01, 2008 7:53 PM
> To: AMSAT-BB
> Subject: [amsat-bb] recent AO-40 efforts?
>
> I noticed that during the last period of documented efforts to recover
AO-40
> 4 years ago, there were promising results about hearing faint signals. By
> my interpretation of those old reports, they basically confirmed that the
> command receiver was working but could not get much else done with it.
Now
> that it has been officially silent for several years, has anyone tried to
> send commands to it in order to disconnect the (shorted) battery banks via
> the relays onboard? Given the changing sun-angles on the arrays and the
> passage of time, as well as possible heating of certain onboard components
> due to the constant supply of solar power to the shorted batteries, could
> there be any possibility of (energizing) the battery-disconnect relays? I
> presume that they are in a fail-close arrangement, because if they were
> fail-open, they should have already done-so due to the shunted power
system.
> Also, could the solar panels have fuses that have opened? could such
fuses
> be re-settable?
>
> I would be interested to hear what knowledge there exists about the
present
> status of AO-40, especially what "google" couldn't fetch.
>
> Auke de Jong
> VE6PWN
> DO33go
> Edmonton, AB
>
> _______________________________________________
> 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: 4
Date: Sun, 02 Mar 2008 21:10:01 +0000
From: w7lrd(AT)comcast.net
Subject: [amsat-bb] Re: recent AO-40 efforts?
To: kd6ire(AT)sbcglobal.net, <AMSAT-BB(AT)amsat.org>
Message-ID:
<030220082110.27821.47CB17A900065B1700006CAD22165384960B9D04C999(AT)comc
ast.net>
Content-Type: text/plain
Just dreaming-It's the year 2035 and 90 year old W7LRD, heard AO-40 for the
first time in over thirty years. Using very antique equipment, that was not
controled by mental telepathy.
73 Bob
--
"if this were easy, everyone would be doing it"
-------------- Original message --------------
From: "Don Ferguson" <kd6ire(AT)sbcglobal.net>
> Auke de Jong,
>
> I believe AO-40 was designed by AMSAT to not allow both sets of batteries to
> be disconnected. We should have learned with AO-7 that every satellite
> should be able to work on solar power alone as eventually all batteries will
> fail. It is my understanding that the only chance we have is if the
> batteries burn open some day in the future.
>
> Someone else my be able to correct my understanding if I have misunderstood
> the AO-40 design. Hopefully those who designed the power system have moved
> on and we now have some better insight.
>
> Don
> -----Original Message-----
> From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org]
On
> Behalf Of Auke de Jong, VE6PWN
> Sent: Saturday, March 01, 2008 7:53 PM
> To: AMSAT-BB
> Subject: [amsat-bb] recent AO-40 efforts?
>
> I noticed that during the last period of documented efforts to recover AO-40
> 4 years ago, there were promising results about hearing faint signals. By
> my interpretation of those old reports, they basically confirmed that the
> command receiver was working but could not get much else done with it. Now
> that it has been officially silent for several years, has anyone tried to
> send commands to it in order to disconnect the (shorted) battery banks via
> the relays onboard? Given the changing sun-angles on the arrays and the
> passage of time, as well as possible heating of certain onboard components
> due to the constant supply of solar power to the shorted batteries, could
> there be any possibility of (energizing) the battery-disconnect relays? I
> presum e that they are in a fail-close arrangement, because if they were
> fail-open, they should have already done-so due to the shunted power system.
> Also, could the solar panels have fuses that have opened? could such fuses
> be re-settable?
>
> I would be interested to hear what knowledge there exists about the present
> status of AO-40, especially what "google" couldn't fetch.
>
> Auke de Jong
> VE6PWN
> DO33go
> Edmonton, AB
>
> _______________________________________________
> 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: Sun, 2 Mar 2008 16:32:10 -0500 (Eastern Standard Time)
From: "Gary Schuchardt" <gschuchardt(AT)gp.hrcoxmail.com>
Subject: [amsat-bb] Efficient Planning of the FT-847 Memory Registers
To: <AMSAT-BB(AT)amsat.org>
Message-ID: <47CB1CDA.000080.03936(AT)EAGLEWINGS>
Content-Type: Text/Plain; charset="windows-1250"
Hi
I am new at satellite communications. I have the Yaesu FT-847 rig, the
G-5500 EL/AZ rotator and the EA4TX RCI-SE rotator controller interface and
NOVA tracking program. I am using the MixW logging program. My antennas
are mostly M2 for satellite communications, including the 436CP30 and 2MCP14
beams, and eggbeaters. The G-5500 EL/AZ has been arranged to also turn the
MQ-36SR HF six band beam in the same direction as the M2 beams. It works
great.
I am sure that there are several AMSAT members that have similar equipment
and especially using the FT-847 rig. The rig has 78 general purpose memory
channels and 12 satellite memory registers. Am I correct in stating that
the rig's general purpose channels are not really good for satellite
purposes and that I am limited to the 12 satellite memory registers?
Scanning could be very helpful too.
I am looking for the best way to program satellite frequencies into the rig
for efficient and effective use of it's capabilities. If you have a listing
showing how you arranged the frequencies, I would appreciate your sharing
this information with me. There must be some time saving involved in
preplanning the satellites into the rig.
Thank you.
Gary
N0EZH
Chesapeake VA USA
------------------------------
Message: 6
Date: Sun, 2 Mar 2008 16:26:57 -0600
From: "Alan P. Biddle" <APBIDDLE(AT)UNITED.NET>
Subject: [amsat-bb] Re: Efficient Planning of the FT-847 Memory
Registers
To: <AMSAT-BB(AT)amsat.org>
Message-ID: <000401c87cb4$86eff750$6501a8c0(AT)WA4SCA>
Content-Type: text/plain; charset="us-ascii"
Gary,
Sounds like you have an excellent starter station there. :) You can
certainly use the FT-847 satellite memories, but my strong suggestion is
don't. They work pretty well with HEO birds near apogee where the Doppler
shift is small and/or constant, but for the existing LEO birds, that isn't
the case. My recommendation is to use one of the computer control programs
to drive the frequency of the rig. You will enjoy the convenience, and on
the SSB linear transponder birds, so will the people you work.
SATPC32 is truly excellent, and the reasonable registration fee goes
completely to AMSAT for development. Ham Radio Deluxe also does a good job,
is free, but the Doppler correction is a bit wonky. Simon is going to fix
that Real Soon Now. Note that if you do use SATC32, you will need to
transfer the QSO info manually, but I find that a very minor inconvenience.
It is pretty canned.
If you do use the memories, you are in effect treating the rig as a giant
HT, which throws away a lot of functionality.
73s,
Alan
WA4SCA
------------------------------
Message: 7
Date: Sun, 02 Mar 2008 17:36:46 -0500
From: Anthony Monteiro <aa2tx(AT)comcast.net>
Subject: [amsat-bb] Re: Efficient Planning of the FT-847 Memory
Registers
To: "Gary Schuchardt" <gschuchardt(AT)gp.hrcoxmail.com>,
<AMSAT-BB(AT)amsat.org>
Message-ID: <20080302223644.832MaiH00E8a8(AT)mailbox5.ucsd.edu>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Hi Gary,
You are barking up the wrong tree!
By far the best way to tune the radios is automatically via
auto-tuning. That way, you can always add new satellites,
you will always be on frequency, and you never have
to worry about silly doppler tuning.
Once you try auto-tuning, you will wonder why anyone would ever
do it any other way. It is much easier to manually point
the antennas than it is to tune for doppler so go for
it all the way. You will not be sorry!
73,
Tony AA2TX
---
At 04:32 PM 3/2/2008, Gary Schuchardt wrote:
>Hi
>
>I am new at satellite communications. I have the Yaesu FT-847 rig, the
>G-5500 EL/AZ rotator and the EA4TX RCI-SE rotator controller interface and
>NOVA tracking program. I am using the MixW logging program. My antennas
>are mostly M2 for satellite communications, including the 436CP30 and 2MCP14
>beams, and eggbeaters. The G-5500 EL/AZ has been arranged to also turn the
>MQ-36SR HF six band beam in the same direction as the M2 beams. It works
>great.
>
>I am sure that there are several AMSAT members that have similar equipment
>and especially using the FT-847 rig. The rig has 78 general purpose memory
>channels and 12 satellite memory registers. Am I correct in stating that
>the rig's general purpose channels are not really good for satellite
>purposes and that I am limited to the 12 satellite memory registers?
>Scanning could be very helpful too.
>
>I am looking for the best way to program satellite frequencies into the rig
>for efficient and effective use of it's capabilities. If you have a listing
>showing how you arranged the frequencies, I would appreciate your sharing
>this information with me. There must be some time saving involved in
>preplanning the satellites into the rig.
>
>Thank you.
>
>Gary
>N0EZH
>Chesapeake VA USA
>_______________________________________________
>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: Sun, 2 Mar 2008 20:26:27 -0600
From: "Alan" <alan.thoren(AT)mts.net>
Subject: [amsat-bb] AO-7 Web Logging
To: "'AmsatBB'" <amsat-bb(AT)amsat.org>
Message-ID: <001201c87cd5$fc0bd010$0602a8c0(AT)athlon>
Content-Type: text/plain; charset="us-ascii"
Well I've seen the mess on the AO-7 log I can appreciate where John is
coming from.
I'm a regular user of the log, but, have never placed an entry on it until
tonight. As an infrequent and intermittent sat user I can never remember
AO-7 's mode. I don't have an HF downlink so it is an excellent reference
for me to check to see if it is in mode B, or, as tonight, to see that it
would switch to mode B while over me.
So I decided to fill in an entry. Yikes! How hard is that?
My 2 cents...
ps Roger VA7MG in beautiful Gibson's Landing - sorry I missed you tonight.
I tried, I heard you and Clare VE3NPC, but she sure was noisy tonight as she
flew well east of the terminator.
------------------------------
Message: 9
Date: Sun, 2 Mar 2008 18:35:09 -0800
From: "kc6uqh" <kc6uqh(AT)cox.net>
Subject: [amsat-bb] Re: recent AO-40 efforts?
To: <w7lrd(AT)comcast.net>, <kd6ire(AT)sbcglobal.net>, <AMSAT-BB(AT)amsat.org>
Message-ID: <002001c87cd7$33347d70$0200a8c0(AT)kc6uqh>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Interesting the speculation, this spacecraft suffered an onboard explosion
that rendered several transponders inopperative. Was it a short or an open?
leaky batteries and corossion, who knows? many efforts were made to resume
contact and all failed. Everyone of us wishes it would return, but the
chance of that happening is well beyound the point of diminishing returns.
If someone has time to listen lets not discourage them , but offer no
encouragement either. Their efforts might be better spent on SETTI.
Art, KC6UQH
----- Original Message -----
From: <w7lrd(AT)comcast.net>
To: <kd6ire(AT)sbcglobal.net>; <AMSAT-BB(AT)amsat.org>
Sent: Sunday, March 02, 2008 1:10 PM
Subject: [amsat-bb] Re: recent AO-40 efforts?
> Just dreaming-It's the year 2035 and 90 year old W7LRD, heard AO-40 for
> the first time in over thirty years. Using very antique equipment, that
> was not controled by mental telepathy.
> 73 Bob
>
>
> --
> "if this were easy, everyone would be doing it"
>
> -------------- Original message --------------
> From: "Don Ferguson" <kd6ire(AT)sbcglobal.net>
>
>> Auke de Jong,
>>
>> I believe AO-40 was designed by AMSAT to not allow both sets of batteries
>> to
>> be disconnected. We should have learned with AO-7 that every satellite
>> should be able to work on solar power alone as eventually all batteries
>> will
>> fail. It is my understanding that the only chance we have is if the
>> batteries burn open some day in the future.
>>
>> Someone else my be able to correct my understanding if I have
>> misunderstood
>> the AO-40 design. Hopefully those who designed the power system have
>> moved
>> on and we now have some better insight.
>>
>> Don
>> -----Original Message-----
>> From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org]
On
>> Behalf Of Auke de Jong, VE6PWN
>> Sent: Saturday, March 01, 2008 7:53 PM
>> To: AMSAT-BB
>> Subject: [amsat-bb] recent AO-40 efforts?
>>
>> I noticed that during the last period of documented efforts to recover
>> AO-40
>> 4 years ago, there were promising results about hearing faint signals. By
>> my interpretation of those old reports, they basically confirmed that the
>> command receiver was working but could not get much else done with it.
>> Now
>> that it has been officially silent for several years, has anyone tried to
>> send commands to it in order to disconnect the (shorted) battery banks
>> via
>> the relays onboard? Given the changing sun-angles on the arrays and the
>> passage of time, as well as possible heating of certain onboard
>> components
>> due to the constant supply of solar power to the shorted batteries, could
>> there be any possibility of (energizing) the battery-disconnect relays? I
>> presum e that they are in a fail-close arrangement, because if they were
>> fail-open, they should have already done-so due to the shunted power
>> system.
>> Also, could the solar panels have fuses that have opened? could such
>> fuses
>> be re-settable?
>>
>> I would be interested to hear what knowledge there exists about the
>> present
>> status of AO-40, especially what "google" couldn't fetch.
>>
>> Auke de Jong
>> VE6PWN
>> DO33go
>> Edmonton, AB
>>
>> _______________________________________________
>> 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: 10
Date: Sun, 02 Mar 2008 20:50:30 -0600
From: "John Becker, W?JAB" <w0jab(AT)big-river.net>
Subject: [amsat-bb] Re: recent AO-40 efforts?
To: amsat-bb(AT)amsat.org
Message-ID: <5.2.0.9.2.20080302204956.01c424e0(AT)big-river.net>
Content-Type: text/plain; charset="us-ascii"
Got to tell you this one.
I listen for the middle beacon from time to time.
The other evening while cleaning and oiling the ol
28 RTTY machine the wife's cat got in here and
onto the desk. Must have hit just the right keys
while walking across the keyboard and started
a WAV file of the MB. My heart missed more
then one beat.
John, W0JAB
if there is a fork in the road - take it !
At 03:10 PM 3/2/2008, you wrote:
>Just dreaming-It's the year 2035 and 90 year old W7LRD, heard AO-40 for the
first time in over thirty years. Using very antique equipment, that was not
controled by mental telepathy.
>73 Bob
------------------------------
Message: 11
Date: Mon, 03 Mar 2008 09:01:36 -0700
From: "Vince Fiscus, KB7ADL" <vlfiscus(AT)mcn.net>
Subject: [amsat-bb] Re: recent AO-40 efforts?
To: amsat-bb(AT)amsat.org
Message-ID: <5.2.1.1.2.20080303085311.00a83010(AT)pop.mcn.net>
Content-Type: text/plain; charset="iso-8859-1"; format=flowed
At 08:50 PM 3/2/08 -0600, "John Becker, W?JAB" <w0jab(AT)big-river.net>wrote:
>Got to tell you this one.
>I listen for the middle beacon from time to time.
>The other evening while cleaning and oiling the ol
>28 RTTY machine the wife's cat got in here and
>onto the desk. Must have hit just the right keys
>while walking across the keyboard and started
>a WAV file of the MB. My heart missed more
>then one beat.
Now that's funny.
I was going through my Amsat computer directory and I deleted AE4JY's
AO40Rcv telemetry capturing software. Maybe I should have kept it
installed a while longer.
KB7ADL
------------------------------
Message: 12
Date: Mon, 3 Mar 2008 14:10:56 -0500
From: "Robert Bruninga" <bruninga(AT)usna.edu>
Subject: [amsat-bb] Re: Very few passes
To: "'Fred \(VE3FAL\)'" <flesnick(AT)tbaytel.net>, <amsat-bb(AT)amsat.org>
Message-ID: <006601c87d62$4eec86d0$42577a83(AT)ewlab.usna.edu>
Content-Type: text/plain; charset="us-ascii"
> Guess we have to wait for the batteries to charge
> on the birds. Only weak signals from PCSat and
> nothing from ISS.
If you look at the ground track of PCSAT compared to the sun,
you will see that the satelite is getting nearer and nearer to
passing under the sun at noon local time in the Northern
Hemisphere. When PCSAT's ground track is near noon local time,
then you can work it usually just fine in the Northern
Hemisphere using the call W3ADO-1 for digipeating. I think next
week will probably be best.
Bob, Wb4APR
------------------------------
_______________________________________________
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End of AMSAT-BB Digest, Vol 3, Issue 115
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