| |
CX2SA > SATDIG 13.03.11 21:05l 273 Lines 9560 Bytes #999 (0) @ WW
BID : AMSATBB6153
Read: GUEST
Subj: AMSAT-BB-digest V6 153
Path: IZ3LSV<IK2XDE<DB0RES<ON0AR<HS1LMV<DB0ZAV<CX2SA
Sent: 110313/1903Z @:CX2SA.LAV.URY.SA #:58307 [Minas] FBB7.00e $:AMSATBB6153
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. 2M1EUB/P QRV SCOTLAND 20/3/11 (paul robinson)
2. Re: Is it 100% impossible to work a satellite below
thehorizon? (i8cvs)
3. Fwd: Next "HV Satcom Net date! (Stuart Balanger)
4. Re: ISS Digipeaer over Japan (Edward R. Cole)
5. Re: Anyone using PacsatTools for Linux? (Bent, OZ6BL)
----------------------------------------------------------------------
Message: 1
Date: Sun, 13 Mar 2011 16:11:32 +0000 (GMT)
From: paul robinson <pushbiker2004@xxxxx.xx.xx>
Subject: [amsat-bb] 2M1EUB/P QRV SCOTLAND 20/3/11
To: amsat-bb@xxxxx.xxx
Message-ID: <242400.17919.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Hi group opperations from scotland will begin this year 20/march ,depending
on WX as there is plenty of snow about there!...ill be qrv for one week.
Ill be opperating from the van, so could be interesting as ive spent all
winter seting it up ,hope to be able to be on the mountains rather than
below them...fun starts from io87rj E.Scotland and arround that area...more
info qrz.com .
?
Ill also be posting later in the year other interesting opperations from
western islands of scotland,including sky,Harris and Lewis ...some rare
islands to sat opps! dates will follow later in the year .73 de paul 2E1EUB
/2M1EUB/P
------------------------------
Message: 2
Date: Sun, 13 Mar 2011 18:27:31 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: Is it 100% impossible to work a satellite
below thehorizon?
To: "Bill Dzurilla" <billdz.geo@xxxxx.xxx>, "Amsat - BBs"
<amsat-bb@xxxxx.xxx>
Message-ID: <005801cbe1a3$eef14820$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Bill, NZ5N
When AO40 was alive and well I experimented many QSO's with several
stations in USA when the elevation of AO40 for me in JN70ES was already
-2 or -3 degrees belove my free horizon using InstantTrack for tracking
The AO40 downlinh was obviously in 2401.300 MHz but my uplink was in
70 cm or 23 cm and my negative elevation was monitored by those stations in
USA using all the same set of keplerian elements but with different tracking
programs and all gives the same results that the elevation for me was
negative.
To explain this uncommon below the horizon propagation anomaly I believe
that is my QTH location that play an important rule because my building is
located only 100 meters from the beach and the antennas are 50 meters above
the sea level and so it is possible that propably in presence of
particular temperature and humidity and pressure conditions a duct similar
to a wave guide is developed over the sea so that my signals and the
satellite signals are traveling into the duct for many miles allowing the
QSO to be made with AO40 belove my horizon.
Another station i8KCL in my QTH wich home is many undred meters behind my
back and more high them me over the sea level he was never able to receive
AO40 with -2 or -3 degrees belove the horizon or made a two way QSO with the
above negative elevation because probably owing of his home altitude he was
not in condition to enter his signals into the suspected duct.
I do not remember the call letter of the many stations in USA experimenting
with me the above propagation anomaly but if some of them are reading this
AMSAT-BB please drop a line in responce.
Best 73" de
i8CVS Domenico
----- Original Message -----
From: "Bill Dzurilla" <billdz.geo@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Sunday, March 13, 2011 1:25 AM
Subject: [amsat-bb] Is it 100% impossible to work a satellite below
thehorizon?
> I was giving a presentation at our club meeting called Working DX on the
Satellites and afterwards someone had a good question: is it at all possible
that tropo, skip, or other form of enhanced propagation can enable a contact
via a satellite below the horizon?
>
> It has never happened to me. Has it ever happened?
>
> 73, Bill NZ5N
>
>
>
> _______________________________________________
> 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: Sun, 13 Mar 2011 13:35:08 -0400
From: Stuart Balanger <wa2bss@xxxxx.xxx>
Subject: [amsat-bb] Fwd: Next "HV Satcom Net date!
To: AMSAT-BB@xxxxx.xxx
Message-ID:
<AANLkTi=Wr9Eu7X2yr-LbX9D+zaE6sNPHa060CcfASdyK@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
*Hi all,
Am sorry that Lee didn't include my article in the ANS Weekly Bullitin (Week
of 3/13)
73,.Stu (WA2BSS)
*
---------- Forwarded message ----------
From: Stuart Balanger <wa2bss@xxxxx.xxx>
Date: Thu, Mar 10, 2011 at 6:06 AM
Subject: Next "HV Satcom Net date!
To: ans-editor@xxxxx.xxx
*The next "HV satcom"group net is Thursday March 17
(St. Patties day); at 8PM (EDT; UTC4) on the 146.97 MHz
Repeater with an Echolink node of "N2EYH-L"
& the Mt.Beacon ARC Hamfest Sunday April 10.
More info (Satcom"): www.hvsatcom.org
More info (Mt.Beacon ARC) : www.wr2abb.org/home/
73,.Stu (WA2BSS)
*
------------------------------
Message: 4
Date: Sun, 13 Mar 2011 09:49:31 -0800
From: "Edward R. Cole" <kl7uw@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: ISS Digipeaer over Japan
To: "Bob Bruninga " <bruninga@xxxx.xxx>, amsat-bb@xxxxx.xxx
Message-ID: <201103131749.p2DHnV32079889@xxxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
At 07:28 AM 3/13/2011, Bob Bruninga wrote:
>Toyo san,
>
>A few more ideas. It is easy to manually estimate ISS pass times
>every day once you have heard a pass.
>See: http://aprs.org/MobileLEOtracking.html
>
>1) ISS over Japan today is between about 0830 to 1830 JST.
>
>2) When you hear the first pass, then you will have additional
>passes every 91 minutes or so that day.
>
>3) Each day a given GOOD pass is 23 minutes later.
>
>4) But overall-long-term pattern is moving earlier every other day
>by 51 minutes.
>
>5) So in one week from now, the time window will be 0600 to 1600
>
>6) The pass pattern is about the same. First 2 passes peak to the
>SE, then NW. Then a low northern pass, then the last two passes are
>NE and then SW.
>
>You can get EXACT pass times from http://heavens-above.com and
>select a city. However, this web page does not show the 1 or 2 low
>passes each day below 10 degrees elevation.
>
>The problem with using the ISS digipeater is that the survivors in
>the devistated area do not know the frequency (145.825). One way to
>solve this is to look for opportunity for someone to take a portable
>digipeater on an airplane over devistated area. The new TH-D72 HT
>can digipeat now! So have someone with a D72 catch a ride in an
>aircraft one day.
>
>The D72 can BEACON on 144.64 a MESSAGE BULLETIN with info about the
>ISS digipeater and the time-window. WHile it is aloft, it can also
>act as a digipeater on Japanese APRS channel 144.64 and can also
>capture a list of any APRS stations or mobiles on the air.
>
>The short bulletins might say something like this:
>
>TO: BLN1
>MSG: ISS Digi on 145.825 between 0830 to 1830
>
>TO: BLN2
>MSG: Passes are 6 min long every 91 minutes
>
>TO: BLN3
>MSG: Every day, passes are 23 minutes later
>
>TO: BLN4
>MSG: Time window moves EARLIER 51m every 2 days
>
>Keep bulletins to under 45 characters to make sure that every radio
>display can see the full bulletin (D7 screen limit).
All good suggestions except the last one. I think the road system is
devastated as all the relief work has been by air in the severest hit
areas. ~ Ed , KL7UW
>But in small area like Japan, I think it might be easier just to try
>to drive APRS mobiles (acting as digipeaters) to nearby hill tops on
>144.64 normal APRS Japanese Frequency and keep everyone on same
>frequency without confusion.
>
>Bob, WB4APR
>
>_______________________________________________
>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
73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ 500 KHz - 10-GHz www.kl7uw.com
EME: 144-1.4kw, 432-100w, 1296-testing*, 3400-winter?
DUBUS Magazine USA Rep dubususa@xxxxxxx.xxx
======================================
------------------------------
Message: 5
Date: Sun, 13 Mar 2011 16:30:01 +0100
From: "Bent, OZ6BL" <oz6bl@xxxx.xx>
Subject: [amsat-bb] Re: Anyone using PacsatTools for Linux?
To: amsat-bb@xxxxx.xxx
Message-ID: <4D7CE2F9.6000807@xxxx.xx>
Content-Type: text/plain; charset=UTF-8; format=flowed
Hi Eric
On 2011-03-13 00:28, Eric Christensen wrote:
> Anyone using PacsatTools for Linux? I just installed the software but
> can't quite figure out what's going on with it. Thanks.
>
We use PacsatTools at OZ7SAT. It works best if you also use PB/PG for
Linux (http://fern.dk/?PB%2FPG)
We mostly use pbdir and occasionally pfhadd and phs but rarely the rest.
The README file should tell the full story.
Best 73 de Bent/OZ6BL
------------------------------
_______________________________________________
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 6, Issue 153
****************************************
Read previous mail | Read next mail
| |
