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CX2SA > SATDIG 08.08.16 21:50l 639 Lines 21313 Bytes #999 (0) @ WW
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Sent: 160808/2044Z @:CX2SA.SAL.URY.SOAM #:50564 [Salto] FBB7.00e $:AMSATBB11251
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. N8RO Portable Operations (Ronald Oldham)
2. Re: N8RO Portable Operations (B J)
3. Es'hail-2 re-scheduled for launch in Q3/2017 (Peter Guelzow)
4. DO44 (Lee Ernstrom)
5. Re: DO44 (Richard Tejera)
6. FUNcube-1 mode (Graham Shirville)
7. NO-84 questions (Mark Lunday)
8. Re: NO-84 questions (Mvivona)
9. Re: NO-84 questions (KO6TZ Bob)
10. Re: NO-84 questions (Joe)
11. Re: NO-84 questions (Paul Stoetzer)
12. Ceuta & Melilla and grid IM76 in FM Sats 12th-16h August
(F?lix P?ez)
13. DO44 (Chris Vernon)
14. Modulating UHF Retro Reflector at RF? (Robert Bruninga)
15. Re: Modulating UHF Retro Reflector at RF? (Greg D)
----------------------------------------------------------------------
Message: 1
Date: Sun, 7 Aug 2016 02:45:40 +0000 (UTC)
From: Ronald Oldham <rgoldham@xxxxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] N8RO Portable Operations
Message-ID:
<1489120662.403251.1470537940024.JavaMail.yahoo@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
We will start a road trip on Thursday Aug 11. The trip will head north to
OK, KS, NE, SD, ND and SK. We will then head west on the Trans Canadian
Highway to AB & BC. From BC we will go to WA, MT, WY, CO and then work our
way home to TX on Friday August 26. While the trip is primarily a vacation,
I will attempt to make satellite contacts, hopefully one or two a day, on
XW-2C, AO-85, SO-50 and FO-29 along the way. Possible grid activations
include: EM03/04, EN00/01, EN04/05, DN88/89, DO50/60, DO11/21, CO90, CN99,
CN78/88, CN97/96, DN36/37, DN75/76, DN71 and DM95. I hope to contact many of
you during this trip.
73,
Ron ? N8RO
------------------------------
Message: 2
Date: Sun, 7 Aug 2016 04:27:44 +0000
From: B J <va6bmj@xxxxx.xxx>
To: Ronald Oldham <rgoldham@xxxxxxxxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] N8RO Portable Operations
Message-ID:
<CAP7QzkNiVzJTOAKKaMuemj9yS6Rq1e4c6w-=g5YwXw0wyMeKkw@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
On 8/7/16, Ronald Oldham <rgoldham@xxxxxxxxx.xxx> wrote:
> We will start a road trip on Thursday Aug 11. The trip will head north to
> OK, KS, NE, SD, ND and SK. We will then head west on the Trans Canadian
> Highway to AB & BC. From BC we will go to WA, MT, WY, CO and then work our
> way home to TX on Friday August 26. While the trip is primarily a vacation,
> I will attempt to make satellite contacts, hopefully one or two a day, on
> XW-2C, AO-85, SO-50 and FO-29 along the way. Possible grid activations
> include: EM03/04, EN00/01, EN04/05, DN88/89, DO50/60, DO11/21, CO90, CN99,
> CN78/88, CN97/96, DN36/37, DN75/76, DN71 and DM95. I hope to contact many of
> you during this trip.
<snip>
I'm usually on FO-29 during the local afternoon, which would be after
1900 UTC. There are lots of grid squares in southern Alberta and B.
C. that I haven't worked yet.
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 3
Date: Sun, 7 Aug 2016 22:24:18 +0200
From: Peter Guelzow <peter.guelzow@xxxxxx.xx>
To: amsat forum <forum@xxxxxxxx.xxx>, AMSAT-BB <AMSAT-BB@xxxxx.xxx>
Subject: [amsat-bb] Es'hail-2 re-scheduled for launch in Q3/2017
Message-ID: <e4f04404-bf67-d774-93b4-1ebcf7fa2aee@xxxxxx.xx>
Content-Type: text/plain; charset=utf-8
We have been informed by Es'hailSat Qatar Satellite company, that the
launch of Es'hail-2 with the first P4-A geostationary amateur radio
transponder is shifted to Q3/2017.
The announcement is available on the corporate Es'hailSat website at
https://www.eshailsat.qa/en/satellites/index/
73s Peter, DB2OS
------------------------------
Message: 4
Date: Sun, 7 Aug 2016 15:24:32 -0600
From: Lee Ernstrom <lee.ernstrom@xxxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] DO44
Message-ID: <48A7437F-0AD8-4004-B799-893E54C28087@xxxxxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Today on the 2013 UTC pass of SO-50 I heard VE6CMV in DO44. When I tried
calling him I quickly learned that my Alinco hand held had a dead battery.
Hopefully he will be around on the next SO-50 pass.
WA7HQD, Doc
Sent from my iPad
------------------------------
Message: 5
Date: Sun, 07 Aug 2016 14:59:16 -0700
From: Richard Tejera <Saguaroastro@xxx.xxx>
To: Lee Ernstrom <lee.ernstrom@xxxxxxxx.xxx>, 'AMSAT'
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] DO44
Message-ID: <yxdfuywfudwyaw99uax8o80e.1470607156769@xxxxx.xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Been there, done that. Pretty sure it's not an exclusive club.
Rick Tejera K7TEJ
Saguaro Astronomy Club
www.SaguaroAstro.org
Thunderbird Amateur Radio Club
www.w7tbc.org
On August 7, 2016, at 14:24, Lee Ernstrom <lee.ernstrom@xxxxxxxx.xxx> wrote:
Today on the 2013 UTC pass of SO-50 I heard VE6CMV in DO44. When I tried
calling him I quickly learned that my Alinco hand held had a dead battery.
Hopefully he will be around on the next SO-50 pass.
WA7HQD, Doc
Sent from my iPad
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 6
Date: Sun, 7 Aug 2016 23:05:32 +0100
From: "Graham Shirville" <g.shirville@xxxxxxxxxx.xxx>
To: <funcube@xxxxxxxxxxx.xx.xx>, "AMSAT BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] FUNcube-1 mode
Message-ID: <E346E0F0B4F5456EA86905B0F0F8CC3C@xxxxxxx.xxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi All,
FUNcube-1 is now (22:04 UTC) back in autonomous mode...high power tlm is
active when in sunlight and transponder with low power tlm when in eclipse.
73
Graham
G3VZV
------------------------------
Message: 7
Date: Sun, 7 Aug 2016 19:28:43 -0400
From: "Mark Lunday" <wd4elg@xxxxx.xx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] NO-84 questions
Message-ID: <186201d1f103$700b26f0$502174d0$@xx.xxx>
Content-Type: text/plain; charset="us-ascii"
2315Z pass.
I could see someone in the passband, but it showed as 6 traces rather than
one. Does that mean the transponder was overdriven with PSK?
I attempted to see if I could get through and at least see my downlink, but
no luck. I figured even without the Doppler-compensated software, I should
see my signal..30 watts to an off-center-fed dipole at 56 feet.
Thoughts/suggestions welcome.
Mark Lunday, WD4ELG
Greensboro, NC FM06be
wd4elg@xxxx.xxx
http://wd4elg.blogspot.com
------------------------------
Message: 8
Date: Sun, 7 Aug 2016 20:07:59 -0400
From: Mvivona <Mvivona@xxxxx.xxx>
To: Mark Lunday <wd4elg@xxxxx.xx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] NO-84 questions
Message-ID: <411A9950-93FC-4D78-AA45-242E9C0C067F@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Just curious. Doesn't the ionosphere have an attenuation on 10 meters?
Michael KC4ZVA
On Aug 7, 2016, at 7:28 PM, Mark Lunday <wd4elg@xxxxx.xx.xxx> wrote:
2315Z pass.
I could see someone in the passband, but it showed as 6 traces rather than
one. Does that mean the transponder was overdriven with PSK?
I attempted to see if I could get through and at least see my downlink, but
no luck. I figured even without the Doppler-compensated software, I should
see my signal..30 watts to an off-center-fed dipole at 56 feet.
Thoughts/suggestions welcome.
Mark Lunday, WD4ELG
Greensboro, NC FM06be
wd4elg@xxxx.xxx
http://wd4elg.blogspot.com
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Sun, 7 Aug 2016 17:39:54 -0700
From: KO6TZ Bob <my.callsign@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] NO-84 questions
Message-ID: <ab4b1476-e4a5-8892-c932-3000f33e78dc@xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8; format=flowed
Mark,
I was not on NO-84 today, but there may have been a 10 m north/south
band opening. I do not think only 30w will turn on the FM transmitter
from North America. During good band openings, I have seen LU and PY
stations turn on the satellite. If what you saw were terrestrial
stations, the traces should have been skewed, probably at different rates.
I use NO-84 regularly, it takes 80-100 watts into a 1/2 wave vertical to
keep the FM transmitter turned on. The downlink signal is strong and EZ
copy, but however, when noise is high on 10 meters, it re-transmits this
noise onto the FM downlink, making for hard copy.
BOB
KO6TZ
2315Z pass.
I could see someone in the passband, but it showed as 6 traces rather than
one. Does that mean the transponder was overdriven with PSK?
I attempted to see if I could get through and at least see my downlink, but
no luck. I figured even without the Doppler-compensated software, I should
see my signal..30 watts to an off-center-fed dipole at 56 feet.
Thoughts/suggestions welcome.
Mark Lunday, WD4ELG
Greensboro, NC FM06be
wd4elg at arrl.net
http://wd4elg.blogspot.com
------------------------------
Message: 10
Date: Sun, 7 Aug 2016 19:55:59 -0500
From: Joe <nss@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] NO-84 questions
Message-ID: <c178f37d-074e-89a6-5c55-b733fa30326d@xxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
if it did then Oscar 7 and similar would not have worked, how about the
Russian birds too 15 and 10 meters.
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 8/7/2016 7:07 PM, Mvivona via AMSAT-BB wrote:
> Just curious. Doesn't the ionosphere have an attenuation on 10 meters?
>
> Michael KC4ZVA
>
>
> On Aug 7, 2016, at 7:28 PM, Mark Lunday <wd4elg@xxxxx.xx.xxx> wrote:
>
> 2315Z pass.
>
> I could see someone in the passband, but it showed as 6 traces rather than
> one. Does that mean the transponder was overdriven with PSK?
>
> I attempted to see if I could get through and at least see my downlink, but
> no luck. I figured even without the Doppler-compensated software, I should
> see my signal..30 watts to an off-center-fed dipole at 56 feet.
>
> Thoughts/suggestions welcome.
>
> Mark Lunday, WD4ELG
> Greensboro, NC FM06be
> wd4elg@xxxx.xxx
> http://wd4elg.blogspot.com
>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>
>
>
------------------------------
Message: 11
Date: Sun, 7 Aug 2016 21:05:04 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: Joe <nss@xxx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] NO-84 questions
Message-ID:
<CABzOSOrcFfdp109hhp+Q_yT-BAoJAL5L_GEimsww4oXt6N2jMA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Those satellites all had resonant 10 meter antennas (as the downlink).
Even so, attenuation when the band is open is easily noticeable.
NO-84 has a non-resonant whip for the uplink. It's 72" long. A
full-size 1/4 wave monopole would be 99.8". That presents an
additional challenge requiring higher uplink power (WB4APR recommends
75 watts to a 1/4 wave vertical, about 3 times what was suggested at
launch).
73,
Paul, N8HM
On Sun, Aug 7, 2016 at 8:55 PM, Joe <nss@xxx.xxx> wrote:
> if it did then Oscar 7 and similar would not have worked, how about the
> Russian birds too 15 and 10 meters.
>
> Joe WB9SBD
> Sig
> The Original Rolling Ball Clock
> Idle Tyme
> Idle-Tyme.com
> http://www.idle-tyme.com
>
> On 8/7/2016 7:07 PM, Mvivona via AMSAT-BB wrote:
>>
>> Just curious. Doesn't the ionosphere have an attenuation on 10 meters?
>>
>> Michael KC4ZVA
>>
>>
>> On Aug 7, 2016, at 7:28 PM, Mark Lunday <wd4elg@xxxxx.xx.xxx> wrote:
>>
>> 2315Z pass.
>>
>> I could see someone in the passband, but it showed as 6 traces rather than
>> one. Does that mean the transponder was overdriven with PSK?
>>
>> I attempted to see if I could get through and at least see my downlink,
>> but
>> no luck. I figured even without the Doppler-compensated software, I
>> should
>> see my signal..30 watts to an off-center-fed dipole at 56 feet.
>>
>> Thoughts/suggestions welcome.
>>
>> Mark Lunday, WD4ELG
>> Greensboro, NC FM06be
>> wd4elg@xxxx.xxx
>> http://wd4elg.blogspot.com
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership. Opinions
>> expressed
>> are solely those of the author, and do not reflect the official views of
>> AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership. Opinions
>> expressed
>> are solely those of the author, and do not reflect the official views of
>> AMSAT-NA.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
>>
>>
>>
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 12
Date: Mon, 8 Aug 2016 12:39:08 +0200
From: F?lix P?ez <ea4gqs@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Ceuta & Melilla and grid IM76 in FM Sats 12th-16h
August
Message-ID: <57a8614c.6211c20a.475ef.f147@xx.xxxxxx.xxx>
Content-Type: text/plain; charset="utf-8"
Hi Friends,
As promised I will act?vate the autonomous city of Ceuta (DXCC entity Ceuta
& Melilla) between days 12th-16th. I don?t know how many passes I will be
able to work. Most of the time I will be in Algeciras city (gid IM76) that I
will also activate.
It is a family trip so I don?t have all the free time I would like. Anyway
most probable passes will be on Friday / Saturday / Sunday. Callsign will be
EA9/EA4GQS.
Activations from grid IM76 will be worked as EA4GQS/P
Thanks and I hope I can give you the entity!
Felix ? EA4GQS
------------------------------
Message: 13
Date: Mon, 8 Aug 2016 11:57:12 -0600
From: Chris Vernon <ve6cmv@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] DO44
Message-ID:
<CAAfTu5c4z8Xtv9NZGDr_F5zti+mOEP1JNgxtueTvZ1Cc-Qn=kQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I will be active on SO50 19.55utc pass
Chris VE6CMV DO44 Cold Lake Alberta.
------------------------------
Message: 14
Date: Mon, 8 Aug 2016 16:05:47 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Modulating UHF Retro Reflector at RF?
Message-ID:
<CALdCfNLY9UTfaGECg+rquuwmre_NnORPqp4KLojP6UjMOb++mA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
At the SMALLSAT conference there are always presentations on modulating
optical retroreflectors so very low power passive pspacecraft can still
communicate telemetry by simply modulating the mirror of a laser reflector.
Can we do this at RF? Unfortunately the 218 MHz megawatt radar fence in
Texas is now shut down... But, now with the amateur radio announcement of
the return of the HAARP ionosphere transmitters in Alaska, there too is
another high power CW system. But it is at HF.
http://www.arrl.org/news/haarp-facility-to-reopen-in-2017-under-new-ownership
So what other HUGE power continuous RF emitters are there that transmits
straight up that could be used by a passivle ON/OFF modulation of a
resonant dipole in space to convey a few bits of data from a piece of wire
in space?
I assume this is a 1/R^4 range equation. If I do the numbers right, a
passive dipole only 200 miles up with a 10 megawatts ERP transmitter at 300
MHz could be detected by a good low noise CW receiver using a 15 dBi
receive antenna at -128 dBm in a CW bandwidth? How many dB can this be
improved with DSP processing?
Its just a mind game. A small matchbox size satellite with dipole antenna
could at least report a few bits of data per pass over the radar beam?
I think the Airforce is re-building the radar fence but at S band. At that
frequency some gain can be added with multi passive dipoles on a cubesat
size satellite gravity gradient stabilized to keep it pointed down. If it
could be made to work, what could we do with it?
Just thinking...
Bob, WB4APR
------------------------------
Message: 15
Date: Mon, 8 Aug 2016 13:42:07 -0700
From: Greg D <ko6th.greg@xxxxx.xxx>
To: Robert Bruninga <bruninga@xxxx.xxx>
Cc: amsat bb <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Modulating UHF Retro Reflector at RF?
Message-ID: <57A8EE9F.1080305@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Woah. Are you basically suggesting an "RFID thing" at orbital distances?
How many bits could you transmit during the brief transit through the
fence? RFID is a pretty low data rate scheme, no?
Greg KO6TH
Robert Bruninga wrote:
> At the SMALLSAT conference there are always presentations on modulating
> optical retroreflectors so very low power passive pspacecraft can still
> communicate telemetry by simply modulating the mirror of a laser reflector.
>
> Can we do this at RF? Unfortunately the 218 MHz megawatt radar fence in
> Texas is now shut down... But, now with the amateur radio announcement of
> the return of the HAARP ionosphere transmitters in Alaska, there too is
> another high power CW system. But it is at HF.
>
http://www.arrl.org/news/haarp-facility-to-reopen-in-2017-under-new-ownership
>
> So what other HUGE power continuous RF emitters are there that transmits
> straight up that could be used by a passivle ON/OFF modulation of a
> resonant dipole in space to convey a few bits of data from a piece of wire
> in space?
>
> I assume this is a 1/R^4 range equation. If I do the numbers right, a
> passive dipole only 200 miles up with a 10 megawatts ERP transmitter at 300
> MHz could be detected by a good low noise CW receiver using a 15 dBi
> receive antenna at -128 dBm in a CW bandwidth? How many dB can this be
> improved with DSP processing?
>
> Its just a mind game. A small matchbox size satellite with dipole antenna
> could at least report a few bits of data per pass over the radar beam?
>
> I think the Airforce is re-building the radar fence but at S band. At that
> frequency some gain can be added with multi passive dipoles on a cubesat
> size satellite gravity gradient stabilized to keep it pointed down. If it
> could be made to work, what could we do with it?
>
> Just thinking...
>
> Bob, WB4APR
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
expressed
> are solely those of the author, and do not reflect the official views of
AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
Subject: Digest Footer
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
http://www.amsat.org/mailman/listinfo/amsat-bb
------------------------------
End of AMSAT-BB Digest, Vol 11, Issue 251
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