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CX2SA > SATDIG 30.05.18 17:25l 1167 Lines 36386 Bytes #999 (0) @ WW
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Sent: 180530/1519Z @:CX2SA.SAL.URY.SOAM #:44026 [Salto] FBB7.00e $:AMSATBB13182
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: LongJiang and Doppler correction (Joe)
2. help with yaesu 5500 rotator (Nick Pugh)
3. Re: Help with SatPC32 Labjack Yaesu 5500 rotator control (Alan)
4. Re: Emails from AMSAT Website (jim@?????.????
5. Re: LongJiang and Doppler correction (Mike Rupprecht)
6. Re: Help with SatPC32 Labjack Yaesu 5500 rotator control
(John Kludt)
7. Re: Emails from AMSAT Website (Joe)
8. Re: Help with SatPC32 Labjack Yaesu 5500 rotator control (Alan)
9. Re: LongJiang and Doppler correction (Dimitry Borzenko)
----------------------------------------------------------------------
Message: 1
Date: Wed, 30 May 2018 08:02:21 -0500
From: Joe <nss@???.???>
To: Mike Rupprecht <mail@??????????????.??>, 'Dimitry Borzenko'
<dibor@?????.???>, 'AMSAT BB' <amsat-bb@?????.???>
Subject: Re: [amsat-bb] LongJiang and Doppler correction
Message-ID: <51453fb6-3ecc-fff3-03b3-76a1893b5873@???.???>
Content-Type: text/plain; charset=windows-1252; format=flowed
I lost the specifications of their Lunar orbits.
I remember they were highly elliptical orbits.
But even with the highly variable distance from the Moon, From our
viewpoint here on Earth, How far away from the Moon does it actually
get? 1/2 a degree? 1 degree? Or what?
In other words with typical Amateur antennas beam widths, why not simply
use tracking data for the Moon itself?
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 5/30/2018 6:56 AM, Mike Rupprecht wrote:
> Hi Dimitry,
>
> TLE are useles in lunar orbit.
>
> You have to update the tracking file in all four decoders.
>
> https://github.com/bg2bhc/dslwp_doc/blob/master/program_tracking_dslwp-b_201
> 80529.txt
>
> (or later files)
>
> 73 Mike
> DK3WN
>
> -----Urspr?ngliche Nachricht-----
> Von: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? Im Auftrag von Dimitry
> Borzenko
> Gesendet: 30 May 2018 10:36
> An: AMSAT BB
> Betreff: Re: [amsat-bb] LongJiang and Doppler correction
>
> Hello.
> Have problem with running Live CD.
> Have made USB bootable diskONkey , system is runs.
> Mun Downlink Proxy is configured and Orbit TLE can be downloaded, but ALL
> ports is NOT connected!
> RTL is running and freq. calibrated.
> Also while running Decoder got 4 terminals running and have some message
> about "File is not find or EOF ....."
>
> What I did wrong?
>
> de 4z5cp.
>
>
> ------ Original Message ------
> From: "Scott" <scott23192@?????.???>
> To: "AMSAT BB" <amsat-bb@?????.???>
> Sent: 30.05.2018 2:30:33
> Subject: Re: [amsat-bb] LongJiang and Doppler correction
>
>> Hi Jean Marc.
>>
>> I have tried to follow the news of these lunar satellites. While
>> several of the guys with DSN capability have received the S-Band
>> downlinks, I'm not aware of anyone hearing anything on 70cm past the
>> first day as the sats left Earth.
>>
>> In fact, even though I am listening every night for the 70cm telemetry
>> (using the team's GNU Radio flowgraphs), I have not heard any
>> confirmation that the 70cm transmitter is even on (telemetry -or- JT4).
>>
>> -Scott, K4KDR
>>
>>
>> =======================================================
>>
>> -----Original Message----- From: Jean Marc Momple
>> Sent: Tuesday, May 29, 2018 12:37 PM
>> To: AMSAT BB
>> Subject: Re: [amsat-bb] LongJiang and Doppler correction
>>
>> Dear All,
>>
>> May be a stupid question for the experts, but genuine from me.
>>
>> Has anyone received any FT4G beacon signal from the Longiang Sats so
>> far?
>>
>> I have being trying to do so for the past week without success.
>>
>> 73
>>
>>
>> Jean Marc (3B8DU)
>>
>>
>>
>>
>>> On May 26, 2018, at 8:54 PM, Nico Janssen <hamsat@??????.??> wrote:
>>>
>>>
>>> In the coming days the doppler shift on the 70 cm downlink of
>>> LongJiang 2 will vary between +2000 and -2200 Hz (for my QTH).
>>> This can easily be calculated with GMAT using the script I published a
>>> couple of hours ago (see my earlier post).
>>>
>>> 73,
>>> Nico PA0DLO
>>>
>>> On 26-05-18 17:44, charlie@??????????????.???????????.??.?? wrote:
>>>> Michael
>>>>
>>>> I think that there are three main components to the Doppler shift for
>>>> a satellite orbiting the moon.
>>>>
>>>> 1. Earth rotation moving the observer toward the moon at moonrise
>>>> (+ve
>>>> Doppler) and moonset (-ve).
>>>>
>>>> 2. Earth-moon distance variation (smaller than 1, and very slowly
>>>> changing in comparison).
>>>>
>>>> 3. Orbital velocity of the satellite itself.
>>>>
>>>> 1 and 2 are easy to work out using EME software, eg WSJT-X or
>>>> Moonsked. I can't help with 3.
>>>>
>>>> Taking today as an example, total of 1 and 2 for the moon vary from ~
>>>> +3
>>>> to -4.5kHz at S-Band.
>>>>
>>>> With DSN satellites many of us use(d) JPL Horizons to calculate
>>>> Doppler shift for Deep Space missions. Observing the Doppler shift
>>>> change when probes were captured by the target planet was quite
>>>> interesting (a slowly changing shift to a cyclic one).
>>>>
>>>> 73
>>>>
>>>> Charlie G3WDG
>>>>
>>>>> I find that an interesting question. One would think that since
>>>>> the
>>>> moon
>>>>> orbits the earth at a much much slower rate than a satellite that
>>>>> there would be almost no Doppler correction required. If you
>>>>> compensate for the speed of the orbit around the moon that is also
>>>>> at a much lower speed than a Earth satellite would be traveling at.
>>>>> Earth satellites are in the 17,000 mph range and moon satellites are
>>>>> in the 2000 mile an hour range orbiting speed. Also the chance that
>>>>> the satellite orbiting the moon could be at such an axis where it is
>>>>> in full visibility the earth the whole time, at that point there
>>>>> would not be a Doppler correction based upon satellite velocity only
>>>>> the moon's velocity. Will be interesting to hear the experts chime
>>>>> in on this.
>>>>>
>>>>> Michael Vivona
>>>>> Sent from my iPad
>>>>>
>>>>> On May 25, 2018, at 5:49 PM, Stefan Wagener <wageners@?????.???>
>>>>> wrote:
>>>>>
>>>>> The problem will not be the pointing (you could just point to the
>>>>> moon :-) Pending distance, speed and orbit around the moon and
>>>>> position to earth, you might have a difficult time adjusting for
>>>>> doppler. I let more knowledgable folks chip in on this one.
>>>>>
>>>>> Stefan, VE4NSA
>>>>>
>>>>>> On Fri, May 25, 2018 at 2:40 PM Jordan Trewitt
>>>>>> <jmtrewitt@?????.???>
>>>>>> wrote:
>>>>>>
>>>>>> If it was the 70 cm downlink, you might be able to schedule
>>>>>> something with someone else's SATNOGS station (idk how that'd work
>>>>>> with getting a rotator to work though), if they have a large enough
>>>>>> yagi that is.
>>>>>> -Jordan
>>>>>> KF5COQ
>>>>>>
>>>>>>> On Fri, May 25, 2018, 12:46 PM Zach Metzinger <zmetzing@?????.???>
>>>>>>> wrote:
>>>>>>>
>>>>>>>> On 05/25/18 11:25, Nico Janssen wrote:
>>>>>>>>
>>>>>>>> It is confirmed from China that LongJiang 2 has performed a
>>>>>>>> successful braking maneuver, so that it is now in lunar orbit.
>>>>>>>> No further details yet.
>>>>>>> Nico,
>>>>>>>
>>>>>>> Do you know of any WebSDRs which are pointed and tuned to the
>>>>>>> downlink signals?
>>>>>>>
>>>>>>> 73,
>>>>>>>
>>>>>>> --- Zach
>>>>>>> N0ZGO
>> _______________________________________________
>> Sent via AMSAT-BB@?????.???. 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@?????.???. 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@?????.???. 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: 2
Date: Wed, 30 May 2018 08:54:07 -0500
From: "Nick Pugh" <quadpugh@?????????.???>
To: "'Amsat BB'" <AMSAT-BB@?????.???>
Subject: [amsat-bb] help with yaesu 5500 rotator
Message-ID: <04ae01d3f81d$ae7fafa0$0b7f0ee0$@?????????.???>
Content-Type: text/plain; charset="us-ascii"
Hello Amsat-ers
I am using an Yaesu 5500 rotator controlled by a Lab jack under Satpc32
v8.1. Intermittently the rotator stall under computer control. The LED on
the lab jack indicate a signal to control the rotator to move but no
movement. Terminating Satpc32 the rotator works normal. Suggestions??
Nick k6qxj
------------------------------
Message: 3
Date: Wed, 30 May 2018 09:18:50 -0500
From: "Alan" <wa4sca@?????.???>
To: "'AMSAT BB'" <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Help with SatPC32 Labjack Yaesu 5500 rotator
control
Message-ID: <000201d3f821$223c9040$66b5b0c0$@?????.???>
Content-Type: text/plain; charset="us-ascii"
Same here, beginning a week or so back. Investigating, but so far nothing
determined. Using WIN7 64-bit, and wondering if there was something in the
recent updates.
73,
Alan
WA4SCA
<-----Original Message-----
<From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of Nick
<Pugh
<Sent: Wednesday, May 30, 2018 08:54 AM
<To: 'Amsat BB' <AMSAT-BB@?????.???>
<Subject: [amsat-bb] help with yaesu 5500 rotator
<
<Hello Amsat-ers
<
<
<
<I am using an Yaesu 5500 rotator controlled by a Lab jack under Satpc32
<v8.1. Intermittently the rotator stall under computer control. The LED on
<the lab jack indicate a signal to control the rotator to move but no
<movement. Terminating Satpc32 the rotator works normal. Suggestions??
<
<
<
<
<
<
<
<Nick k6qxj
<
<_______________________________________________
<Sent via AMSAT-BB@?????.???. 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: 4
Date: Wed, 30 May 2018 07:23:36 -0700 (PDT)
From: "jim@?????.???? <jim@?????.???>
To: "AMSAT BB" <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Emails from AMSAT Website
Message-ID: <1527690216.166524990@????.?????????.???>
Content-Type: text/plain;charset=UTF-8
"Ken M" <va7kbm@... said:
> These and many other email issues are why, IMHO, the current old-style
AMSAT mailing list should be converted to a more modern web-based forum that
can be organized by topic.
Please NO!
My primary reason is that I receive E-Mails from around 60 E-Mail lists.
Some are quite active and some go weeks without any messages. I can
guarantee that I am NOT going to go to 60 different forums several times per
day to see if there is something interesting to read. E-Mail lists may not
be the best solution, but they don't require massive effort to go get the
information. With some E-Mail sorting in your E-Mail client, it is pretty
easy to organize messages from an E-Mail list.
73
-----
Jim Walls - K6CCC
jim@?????.???
------------------------------
Message: 5
Date: Wed, 30 May 2018 16:23:48 +0200
From: "Mike Rupprecht" <mail@??????????????.??>
To: "'Dimitry Borzenko'" <dibor@?????.???>, "'AMSAT BB'"
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] LongJiang and Doppler correction
Message-ID: <005e01d3f821$d3f20860$7bd61920$@??>
Content-Type: text/plain; charset="utf-8"
Dimitry,
the default directory is /home/lilac/lilacsat/gr-dslwp/examples/
Edit the correct path in the Program Tracking CC block.
73 Mike
DK3WN
-----Urspr?ngliche Nachricht-----
Von: Dimitry Borzenko [mailto:dibor@?????.????
Gesendet: 30 May 2018 14:58
An: Mike Rupprecht; 'AMSAT BB'
Betreff: Re: AW: [amsat-bb] LongJiang and Doppler correction
Hello Mike.
I saw new files but I do not know where I should to put this file (which
folder?).
Regards.
------ Original Message ------
From: "Mike Rupprecht" <mail@??????????????.??>
To: "'Dimitry Borzenko'" <dibor@?????.???>; "'AMSAT BB'"
<amsat-bb@?????.???>
Sent: 30.05.2018 14:56:51
Subject: AW: [amsat-bb] LongJiang and Doppler correction
>Hi Dimitry,
>
>TLE are useles in lunar orbit.
>
>You have to update the tracking file in all four decoders.
>
>https://github.com/bg2bhc/dslwp_doc/blob/master/program_tracking_dslwp-
>b_201
>80529.txt
>
>(or later files)
>
>73 Mike
>DK3WN
>
>-----Urspr?ngliche Nachricht-----
>Von: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? Im Auftrag von
>Dimitry Borzenko
>Gesendet: 30 May 2018 10:36
>An: AMSAT BB
>Betreff: Re: [amsat-bb] LongJiang and Doppler correction
>
>Hello.
>Have problem with running Live CD.
>Have made USB bootable diskONkey , system is runs.
>Mun Downlink Proxy is configured and Orbit TLE can be downloaded, but
>ALL ports is NOT connected!
>RTL is running and freq. calibrated.
>Also while running Decoder got 4 terminals running and have some
>message about "File is not find or EOF ....."
>
>What I did wrong?
>
>de 4z5cp.
>
>
>------ Original Message ------
>From: "Scott" <scott23192@?????.???>
>To: "AMSAT BB" <amsat-bb@?????.???>
>Sent: 30.05.2018 2:30:33
>Subject: Re: [amsat-bb] LongJiang and Doppler correction
>
>>Hi Jean Marc.
>>
>>I have tried to follow the news of these lunar satellites. While
>>several of the guys with DSN capability have received the S-Band
>>downlinks, I'm not aware of anyone hearing anything on 70cm past the
>>first day as the sats left Earth.
>>
>>In fact, even though I am listening every night for the 70cm telemetry
>>(using the team's GNU Radio flowgraphs), I have not heard any
>>confirmation that the 70cm transmitter is even on (telemetry -or-
>>JT4).
>>
>>-Scott, K4KDR
>>
>>
>>=======================================================
>>
>>-----Original Message----- From: Jean Marc Momple
>>Sent: Tuesday, May 29, 2018 12:37 PM
>>To: AMSAT BB
>>Subject: Re: [amsat-bb] LongJiang and Doppler correction
>>
>>Dear All,
>>
>>May be a stupid question for the experts, but genuine from me.
>>
>>Has anyone received any FT4G beacon signal from the Longiang Sats so
>>far?
>>
>>I have being trying to do so for the past week without success.
>>
>>73
>>
>>
>>Jean Marc (3B8DU)
>>
>>
>>
>>
>>>On May 26, 2018, at 8:54 PM, Nico Janssen <hamsat@??????.??> wrote:
>>>
>>>
>>>In the coming days the doppler shift on the 70 cm downlink of
>>>LongJiang 2 will vary between +2000 and -2200 Hz (for my QTH).
>>>This can easily be calculated with GMAT using the script I published
>>>a couple of hours ago (see my earlier post).
>>>
>>>73,
>>>Nico PA0DLO
>>>
>>>On 26-05-18 17:44, charlie@??????????????.???????????.??.?? wrote:
>>>>Michael
>>>>
>>>>I think that there are three main components to the Doppler shift
>>>>for a satellite orbiting the moon.
>>>>
>>>>1. Earth rotation moving the observer toward the moon at moonrise
>>>>(+ve
>>>>Doppler) and moonset (-ve).
>>>>
>>>>2. Earth-moon distance variation (smaller than 1, and very slowly
>>>>changing in comparison).
>>>>
>>>>3. Orbital velocity of the satellite itself.
>>>>
>>>>1 and 2 are easy to work out using EME software, eg WSJT-X or
>>>>Moonsked. I can't help with 3.
>>>>
>>>>Taking today as an example, total of 1 and 2 for the moon vary from
>>>>~
>>>>+3
>>>>to -4.5kHz at S-Band.
>>>>
>>>>With DSN satellites many of us use(d) JPL Horizons to calculate
>>>>Doppler shift for Deep Space missions. Observing the Doppler shift
>>>>change when probes were captured by the target planet was quite
>>>>interesting (a slowly changing shift to a cyclic one).
>>>>
>>>>73
>>>>
>>>>Charlie G3WDG
>>>>
>>>> > I find that an interesting question. One would think that since
>>>> > the
>>>>moon
>>>>>orbits the earth at a much much slower rate than a satellite that
>>>>>there would be almost no Doppler correction required. If you
>>>>>compensate for the speed of the orbit around the moon that is also
>>>>>at a much lower speed than a Earth satellite would be traveling at.
>>>>>Earth satellites are in the 17,000 mph range and moon satellites
>>>>>are in the 2000 mile an hour range orbiting speed. Also the chance
>>>>>that the satellite orbiting the moon could be at such an axis where
>>>>>it is in full visibility the earth the whole time, at that point
>>>>>there would not be a Doppler correction based upon satellite
>>>>>velocity only the moon's velocity. Will be interesting to hear the
>>>>>experts chime in on this.
>>>>>
>>>>>Michael Vivona
>>>>>Sent from my iPad
>>>>>
>>>>>On May 25, 2018, at 5:49 PM, Stefan Wagener <wageners@?????.???>
>>>>>wrote:
>>>>>
>>>>>The problem will not be the pointing (you could just point to the
>>>>>moon :-) Pending distance, speed and orbit around the moon and
>>>>>position to earth, you might have a difficult time adjusting for
>>>>>doppler. I let more knowledgable folks chip in on this one.
>>>>>
>>>>>Stefan, VE4NSA
>>>>>
>>>>>>On Fri, May 25, 2018 at 2:40 PM Jordan Trewitt
>>>>>><jmtrewitt@?????.???>
>>>>>>wrote:
>>>>>>
>>>>>>If it was the 70 cm downlink, you might be able to schedule
>>>>>>something with someone else's SATNOGS station (idk how that'd work
>>>>>>with getting a rotator to work though), if they have a large
>>>>>>enough yagi that is.
>>>>>>-Jordan
>>>>>>KF5COQ
>>>>>>
>>>>>>>On Fri, May 25, 2018, 12:46 PM Zach Metzinger
>>>>>>><zmetzing@?????.???>
>>>>>>>wrote:
>>>>>>>
>>>>>>>>On 05/25/18 11:25, Nico Janssen wrote:
>>>>>>>>
>>>>>>>>It is confirmed from China that LongJiang 2 has performed a
>>>>>>>>successful braking maneuver, so that it is now in lunar orbit.
>>>>>>>>No further details yet.
>>>>>>>Nico,
>>>>>>>
>>>>>>>Do you know of any WebSDRs which are pointed and tuned to the
>>>>>>>downlink signals?
>>>>>>>
>>>>>>>73,
>>>>>>>
>>>>>>>--- Zach
>>>>>>>N0ZGO
>>
>>_______________________________________________
>>Sent via AMSAT-BB@?????.???. 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@?????.???. 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: Wed, 30 May 2018 10:28:29 -0400
From: John Kludt <johnnykludt@?????.???>
To: "Alan (AMSAT)" <APBIDDLE@???????.???>
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Help with SatPC32 Labjack Yaesu 5500 rotator
control
Message-ID:
<CABsMmtQFZisMPa6mRAv3trarQ3FvWRw5zCntgaXJtQy1U0bZMQ@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
Alan and Nick,
If you think it may be update related try the "Run as Administrator" option
(right click on the desk top icon then <Run as Administrator>. This has
been solving a number of issues for me lately, all related to Windows
security changes to be in compliance with the new EU privacy laws. It is a
long shot but it costs you nothing and if it doesn't fix the problem at
least you have discovered one easy thing to do that didn't work.
John K4SQC
On Wed, May 30, 2018 at 10:18 AM, Alan <wa4sca@?????.???> wrote:
> Same here, beginning a week or so back. Investigating, but so far nothing
> determined. Using WIN7 64-bit, and wondering if there was something in the
> recent updates.
>
> 73,
>
> Alan
> WA4SCA
>
>
> <-----Original Message-----
> <From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? On Behalf Of Nick
> <Pugh
> <Sent: Wednesday, May 30, 2018 08:54 AM
> <To: 'Amsat BB' <AMSAT-BB@?????.???>
> <Subject: [amsat-bb] help with yaesu 5500 rotator
> <
> <Hello Amsat-ers
> <
> <
> <
> <I am using an Yaesu 5500 rotator controlled by a Lab jack under Satpc32
> <v8.1. Intermittently the rotator stall under computer control. The LED on
> <the lab jack indicate a signal to control the rotator to move but no
> <movement. Terminating Satpc32 the rotator works normal. Suggestions??
> <
> <
> <
> <
> <
> <
> <
> <Nick k6qxj
> <
> <_______________________________________________
> <Sent via AMSAT-BB@?????.???. 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@?????.???. 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: 7
Date: Wed, 30 May 2018 09:28:32 -0500
From: Joe <nss@???.???>
To: "jim@?????.???? <jim@?????.???>, AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Emails from AMSAT Website
Message-ID: <3fa8ac08-2c45-35a6-2ef2-e765a040ba4c@???.???>
Content-Type: text/plain; charset=windows-1252; format=flowed
If this went to a web page forum, I'm gone.
Most E Mail programs allow you to organize messages also.
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 5/30/2018 9:23 AM, jim@?????.??? wrote:
> "Ken M" <va7kbm@... said:
>
>> These and many other email issues are why, IMHO, the current old-style
AMSAT mailing list should be converted to a more modern web-based forum that
can be organized by topic.
> Please NO!
>
> My primary reason is that I receive E-Mails from around 60 E-Mail lists.
Some are quite active and some go weeks without any messages. I can
guarantee that I am NOT going to go to 60 different forums several times per
day to see if there is something interesting to read. E-Mail lists may not
be the best solution, but they don't require massive effort to go get the
information. With some E-Mail sorting in your E-Mail client, it is pretty
easy to organize messages from an E-Mail list.
>
> 73
> -----
> Jim Walls - K6CCC
> jim@?????.???
>
>
> _______________________________________________
> Sent via AMSAT-BB@?????.???. 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: 8
Date: Wed, 30 May 2018 09:41:06 -0500
From: "Alan" <wa4sca@?????.???>
To: "'John Kludt'" <johnnykludt@?????.???>, "'Alan \(AMSAT\)'"
<APBIDDLE@???????.???>
Cc: 'AMSAT BB' <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Help with SatPC32 Labjack Yaesu 5500 rotator
control
Message-ID: <000201d3f824$3e6cdfb0$bb469f10$@?????.???>
Content-Type: text/plain; charset="utf-8"
John,
Good suggestion, but "unfortunately" I already run it as an administrator.
Bad security practice, but as you say, it can eliminate odd problems.
The Meltdown/Spectre patch has caused a noticeable performance hit on my
machine, even though it is very capable. I am wondering if it may be
causing a timing problem? Fortunately the problem only occurs every 2-3
days, but is annoying for unattended operation. SatPC32/Labjack have been
running flawlessly for literally years.
73,
Alan
WA4SCA
<-----Original Message-----
<From: John Kludt [mailto:johnnykludt@?????.????
<Sent: Wednesday, May 30, 2018 09:28 AM
<To: Alan (AMSAT) <APBIDDLE@???????.???>
<Cc: AMSAT BB <amsat-bb@?????.???>
<Subject: Re: [amsat-bb] Help with SatPC32 Labjack Yaesu 5500 rotator control
<
<Alan and Nick,
<
<If you think it may be update related try the "Run as Administrator" option
<(right click on the desk top icon then <Run as Administrator>. This has been
<solving a number of issues for me lately, all related to Windows security
<changes to be in compliance with the new EU privacy laws. It is a long
shot but
<it costs you nothing and if it doesn't fix the problem at least you have
<discovered one easy thing to do that didn't work.
<
<John K4SQC
<
<On Wed, May 30, 2018 at 10:18 AM, Alan <wa4sca@?????.???
<<mailto:wa4sca@?????.???> > wrote:
<
<
< Same here, beginning a week or so back. Investigating, but so far
<nothing
< determined. Using WIN7 64-bit, and wondering if there was
<something in the
< recent updates.
<
< 73,
<
< Alan
< WA4SCA
<
<
< <-----Original Message-----
< <From: AMSAT-BB [mailto:amsat-bb-bounces@?????.???
<<mailto:amsat-bb-bounces@?????.???> ] On Behalf Of Nick
< <Pugh
< <Sent: Wednesday, May 30, 2018 08:54 AM
< <To: 'Amsat BB' <AMSAT-BB@?????.??? <mailto:AMSAT-
<BB@?????.???> >
< <Subject: [amsat-bb] help with yaesu 5500 rotator
< <
< <Hello Amsat-ers
< <
< <
< <
< <I am using an Yaesu 5500 rotator controlled by a Lab jack under
<Satpc32
< <v8.1. Intermittently the rotator stall under computer control. The LED
<on
< <the lab jack indicate a signal to control the rotator to move but no
< <movement. Terminating Satpc32 the rotator works normal.
<Suggestions??
< <
< <
< <
< <
< <
< <
< <
< <Nick k6qxj
< <
< <_______________________________________________
< <Sent via AMSAT-BB@?????.??? <mailto:AMSAT-BB@?????.???> .
<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
<<http://www.amsat.org/mailman/listinfo/amsat-bb>
<
< _______________________________________________
< Sent via AMSAT-BB@?????.??? <mailto:AMSAT-BB@?????.???> .
<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 <http://www.amsat.org/mailman/listinfo/amsat-bb>
<
<
------------------------------
Message: 9
Date: Wed, 30 May 2018 15:10:29 +0000
From: "Dimitry Borzenko" <dibor@?????.???>
To: "Mike Rupprecht" <mail@??????????????.??>, "'AMSAT BB'"
<amsat-bb@?????.???>
Subject: Re: [amsat-bb] LongJiang and Doppler correction
Message-ID: <em1a51faae-aa67-4b8d-966f-004c2be1956c@?????>
Content-Type: text/plain; format=flowed; charset=utf-8
Hi Mike.
Understood.
Program Tracking CC block request exact file, path is not enough.
I should to change every day/ two days Program Tracking CC setting for
each demodulator?
Or I do not understand something?
Regards.
------ Original Message ------
From: "Mike Rupprecht" <mail@??????????????.??>
To: "'Dimitry Borzenko'" <dibor@?????.???>; "'AMSAT BB'"
<amsat-bb@?????.???>
Sent: 30.05.2018 17:23:48
Subject: AW: AW: [amsat-bb] LongJiang and Doppler correction
>Dimitry,
>
>the default directory is /home/lilac/lilacsat/gr-dslwp/examples/
>Edit the correct path in the Program Tracking CC block.
>
>73 Mike
>DK3WN
>
>-----Urspr?ngliche Nachricht-----
>Von: Dimitry Borzenko [mailto:dibor@?????.????
>Gesendet: 30 May 2018 14:58
>An: Mike Rupprecht; 'AMSAT BB'
>Betreff: Re: AW: [amsat-bb] LongJiang and Doppler correction
>
>Hello Mike.
>I saw new files but I do not know where I should to put this file
>(which folder?).
>
>Regards.
>
>
>------ Original Message ------
>From: "Mike Rupprecht" <mail@??????????????.??>
>To: "'Dimitry Borzenko'" <dibor@?????.???>; "'AMSAT BB'"
><amsat-bb@?????.???>
>Sent: 30.05.2018 14:56:51
>Subject: AW: [amsat-bb] LongJiang and Doppler correction
>
>>Hi Dimitry,
>>
>>TLE are useles in lunar orbit.
>>
>>You have to update the tracking file in all four decoders.
>>
>>https://github.com/bg2bhc/dslwp_doc/blob/master/program_tracking_dslwp-
>>b_201
>>80529.txt
>>
>>(or later files)
>>
>>73 Mike
>>DK3WN
>>
>>-----Urspr?ngliche Nachricht-----
>>Von: AMSAT-BB [mailto:amsat-bb-bounces@?????.???? Im Auftrag von
>>Dimitry Borzenko
>>Gesendet: 30 May 2018 10:36
>>An: AMSAT BB
>>Betreff: Re: [amsat-bb] LongJiang and Doppler correction
>>
>>Hello.
>>Have problem with running Live CD.
>>Have made USB bootable diskONkey , system is runs.
>>Mun Downlink Proxy is configured and Orbit TLE can be downloaded, but
>>ALL ports is NOT connected!
>>RTL is running and freq. calibrated.
>>Also while running Decoder got 4 terminals running and have some
>>message about "File is not find or EOF ....."
>>
>>What I did wrong?
>>
>>de 4z5cp.
>>
>>
>>------ Original Message ------
>>From: "Scott" <scott23192@?????.???>
>>To: "AMSAT BB" <amsat-bb@?????.???>
>>Sent: 30.05.2018 2:30:33
>>Subject: Re: [amsat-bb] LongJiang and Doppler correction
>>
>>>Hi Jean Marc.
>>>
>>>I have tried to follow the news of these lunar satellites. While
>>>several of the guys with DSN capability have received the S-Band
>>>downlinks, I'm not aware of anyone hearing anything on 70cm past the
>>>first day as the sats left Earth.
>>>
>>>In fact, even though I am listening every night for the 70cm
>>>telemetry
>>>(using the team's GNU Radio flowgraphs), I have not heard any
>>>confirmation that the 70cm transmitter is even on (telemetry -or-
>>>JT4).
>>>
>>>-Scott, K4KDR
>>>
>>>
>>>=======================================================
>>>
>>>-----Original Message----- From: Jean Marc Momple
>>>Sent: Tuesday, May 29, 2018 12:37 PM
>>>To: AMSAT BB
>>>Subject: Re: [amsat-bb] LongJiang and Doppler correction
>>>
>>>Dear All,
>>>
>>>May be a stupid question for the experts, but genuine from me.
>>>
>>>Has anyone received any FT4G beacon signal from the Longiang Sats so
>>>far?
>>>
>>>I have being trying to do so for the past week without success.
>>>
>>>73
>>>
>>>
>>>Jean Marc (3B8DU)
>>>
>>>
>>>
>>>
>>>>On May 26, 2018, at 8:54 PM, Nico Janssen <hamsat@??????.??> wrote:
>>>>
>>>>
>>>>In the coming days the doppler shift on the 70 cm downlink of
>>>>LongJiang 2 will vary between +2000 and -2200 Hz (for my QTH).
>>>>This can easily be calculated with GMAT using the script I published
>>>>a couple of hours ago (see my earlier post).
>>>>
>>>>73,
>>>>Nico PA0DLO
>>>>
>>>>On 26-05-18 17:44, charlie@??????????????.???????????.??.?? wrote:
>>>>>Michael
>>>>>
>>>>>I think that there are three main components to the Doppler shift
>>>>>for a satellite orbiting the moon.
>>>>>
>>>>>1. Earth rotation moving the observer toward the moon at moonrise
>>>>>(+ve
>>>>>Doppler) and moonset (-ve).
>>>>>
>>>>>2. Earth-moon distance variation (smaller than 1, and very slowly
>>>>>changing in comparison).
>>>>>
>>>>>3. Orbital velocity of the satellite itself.
>>>>>
>>>>>1 and 2 are easy to work out using EME software, eg WSJT-X or
>>>>>Moonsked. I can't help with 3.
>>>>>
>>>>>Taking today as an example, total of 1 and 2 for the moon vary from
>>>>>~
>>>>>+3
>>>>>to -4.5kHz at S-Band.
>>>>>
>>>>>With DSN satellites many of us use(d) JPL Horizons to calculate
>>>>>Doppler shift for Deep Space missions. Observing the Doppler shift
>>>>>change when probes were captured by the target planet was quite
>>>>>interesting (a slowly changing shift to a cyclic one).
>>>>>
>>>>>73
>>>>>
>>>>>Charlie G3WDG
>>>>>
>>>>> > I find that an interesting question. One would think that since
>>>>> > the
>>>>>moon
>>>>>>orbits the earth at a much much slower rate than a satellite that
>>>>>>there would be almost no Doppler correction required. If you
>>>>>>compensate for the speed of the orbit around the moon that is also
>>>>>>at a much lower speed than a Earth satellite would be traveling
>>>>>>at.
>>>>>>Earth satellites are in the 17,000 mph range and moon satellites
>>>>>>are in the 2000 mile an hour range orbiting speed. Also the chance
>>>>>>that the satellite orbiting the moon could be at such an axis
>>>>>>where
>>>>>>it is in full visibility the earth the whole time, at that point
>>>>>>there would not be a Doppler correction based upon satellite
>>>>>>velocity only the moon's velocity. Will be interesting to hear the
>>>>>>experts chime in on this.
>>>>>>
>>>>>>Michael Vivona
>>>>>>Sent from my iPad
>>>>>>
>>>>>>On May 25, 2018, at 5:49 PM, Stefan Wagener <wageners@?????.???>
>>>>>>wrote:
>>>>>>
>>>>>>The problem will not be the pointing (you could just point to the
>>>>>>moon :-) Pending distance, speed and orbit around the moon and
>>>>>>position to earth, you might have a difficult time adjusting for
>>>>>>doppler. I let more knowledgable folks chip in on this one.
>>>>>>
>>>>>>Stefan, VE4NSA
>>>>>>
>>>>>>>On Fri, May 25, 2018 at 2:40 PM Jordan Trewitt
>>>>>>><jmtrewitt@?????.???>
>>>>>>>wrote:
>>>>>>>
>>>>>>>If it was the 70 cm downlink, you might be able to schedule
>>>>>>>something with someone else's SATNOGS station (idk how that'd
>>>>>>>work
>>>>>>>with getting a rotator to work though), if they have a large
>>>>>>>enough yagi that is.
>>>>>>>-Jordan
>>>>>>>KF5COQ
>>>>>>>
>>>>>>>>On Fri, May 25, 2018, 12:46 PM Zach Metzinger
>>>>>>>><zmetzing@?????.???>
>>>>>>>>wrote:
>>>>>>>>
>>>>>>>>>On 05/25/18 11:25, Nico Janssen wrote:
>>>>>>>>>
>>>>>>>>>It is confirmed from China that LongJiang 2 has performed a
>>>>>>>>>successful braking maneuver, so that it is now in lunar orbit.
>>>>>>>>>No further details yet.
>>>>>>>>Nico,
>>>>>>>>
>>>>>>>>Do you know of any WebSDRs which are pointed and tuned to the
>>>>>>>>downlink signals?
>>>>>>>>
>>>>>>>>73,
>>>>>>>>
>>>>>>>>--- Zach
>>>>>>>>N0ZGO
>>>
>>>_______________________________________________
>>>Sent via AMSAT-BB@?????.???. 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@?????.???. 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
>>
>
------------------------------
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_______________________________________________
Sent via amsat-bb@?????.???.
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without requiring membership. Opinions expressed
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AMSAT-NA.
Not an AMSAT member? Join now to support the amateur satellite program!
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------------------------------
End of AMSAT-BB Digest, Vol 13, Issue 182
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