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CX2SA > SATDIG 25.10.18 01:34l 795 Lines 28537 Bytes #999 (0) @ WW
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Sent: 181024/2329Z @:CX2SA.SAL.URY.SOAM #:56484 [Salto] FBB7.00e $:AMSATBB13351
From: CX2SA@CX2SA.SAL.URY.SOAM
To : SATDIG@WW
Today's Topics:
1. Re: FoxTelem with Linux? (Apostolos Kefalas)
2. Re: FoxTelem with Linux? (Hans BX2ABT)
3. Re: FoxTelem with Linux? (Paul Stoetzer)
4. icom IC821H SUB mode (alex weimer)
5. Portable, Full-Duplex Transceiver (ronald mosher)
6. Re: Portable, Full-Duplex Transceiver (Mike Diehl)
7. Re: icom IC821H SUB mode (Bob)
8. Re: icom IC821H SUB mode (alex weimer)
9. Re: Intro AMSAT presentation (Joe Spier)
10. Re: Portable, Full-Duplex Transceiver (R.T.Liddy)
11. Re: Intro AMSAT presentation (Greg D)
12. Extended info about calibrating your LVB tracker and G5500
rotor (Burns Fisher)
13. Re: Need help figuring out ISS Packet UPlink stuff (Bob KD7YZ)
----------------------------------------------------------------------
Message: 1
Date: Wed, 24 Oct 2018 16:33:33 +0300
From: Apostolos Kefalas <sv1ljj@????.???>
To: Wendy and Terry Osborne <wandtosborne@?????.???>,
amsat-bb@?????.???
Subject: Re: [amsat-bb] FoxTelem with Linux?
Message-ID: <1540388013.2454.2.camel@????.???>
Content-Type: text/plain; charset="UTF-8"
Hi,
1. Install "PulseAudio Volume control" (pavucontrol)
2. Start gqrx and Foxtelem
3. On the "Recording" tab of "PulseAudio Volume control" set Foxtelem
"capture from" to "monitor of build in audio"
4. Set your audio levels.
You are ready!
73
Apostolos
On Wed, 2018-10-24 at 16:42 +1300, Wendy and Terry Osborne wrote:
> Hi Folks,
>
> I have just got an old Toshiba A100 laptop running on Linux.
> I have GPredict, gqrx and FoxTelem running.
>
> Does anyone have any ideas on how to get gqrx feeding audio to
> FoxTelem?
> Thanks,
> 73,
> Terry Osborne ZL2BAC
> _______________________________________________
> 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, 24 Oct 2018 22:04:03 +0800
From: Hans BX2ABT <hans.bx2abt@???.?????.???>
To: Wendy and Terry Osborne <wandtosborne@?????.???>,
amsat-bb@?????.???
Subject: Re: [amsat-bb] FoxTelem with Linux?
Message-ID: <a3df611d-e6a8-0f43-4c98-05fc48ae9756@???.?????.???>
Content-Type: text/plain; charset=utf-8; format=flowed
I assume it is a distro running PulsAudio and that all audio is working.
In your next post please tell us what distro you're using, that would be
helpful.
1) First install pavucontrol. Fire it up and also start GQRX and Foxtelem.
2) Pavucontrol has 5 tabs, go to the "Recording" one.
3) You will see something like "ALSA plug-in [java]: Alsa Capture????
from .....". (Foxtelem is a Java application, hence the mention of Java).
4) Click on the rectangle that comes after "from" and you will get a
number of choices depending on the number of sound cards. It will
probably be two options only.
5) pick the options with "Monitor of" in front of it. If correct you
will see the VU-meter below it come to live, which means that Foxtelem
should be picking up audio.
6) Be proud of yourself for putting an old laptop to good use and start
enjoying it.
If it doesn't work out mail me directly and I can provide you with some
screen shots. The method that Paul N8HM mentioned will probably also
work, but? you will lose audio output from your speakers.
HTH,
Hans
BX2ABT
On 10/24/18 11:42 AM, Wendy and Terry Osborne wrote:
> Hi Folks,
>
> I have just got an old Toshiba A100 laptop running on Linux.
> I have GPredict, gqrx and FoxTelem running.
>
> Does anyone have any ideas on how to get gqrx feeding audio to FoxTelem?
> Thanks,
> 73,
> Terry Osborne ZL2BAC
> _______________________________________________
> 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: 3
Date: Wed, 24 Oct 2018 10:11:54 -0400
From: Paul Stoetzer <n8hm@????.???>
To: hans.bx2abt@???.?????.???
Cc: AMSAT BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] FoxTelem with Linux?
Message-ID:
<CABzOSOpboCAaDFpvGt_zh=pXtqgLi3mbLTnjjkXWQyTe9xqH4A@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
"The method that Paul N8HM mentioned will probably also work, but you
will lose audio output from your speakers."
I have used the module-virtual-source method and, while it's true that
you lose the audio output to speakers from Gqrx, you can send the
audio to the speakers from FoxTelem.
73,
Paul, N8HM
On Wed, Oct 24, 2018 at 10:04 AM Hans BX2ABT <hans.bx2abt@???.?????.???>
wrote:
>
> I assume it is a distro running PulsAudio and that all audio is working.
> In your next post please tell us what distro you're using, that would be
> helpful.
>
> 1) First install pavucontrol. Fire it up and also start GQRX and Foxtelem.
>
> 2) Pavucontrol has 5 tabs, go to the "Recording" one.
>
> 3) You will see something like "ALSA plug-in [java]: Alsa Capture
> from .....". (Foxtelem is a Java application, hence the mention of Java).
>
> 4) Click on the rectangle that comes after "from" and you will get a
> number of choices depending on the number of sound cards. It will
> probably be two options only.
>
> 5) pick the options with "Monitor of" in front of it. If correct you
> will see the VU-meter below it come to live, which means that Foxtelem
> should be picking up audio.
>
> 6) Be proud of yourself for putting an old laptop to good use and start
> enjoying it.
>
> If it doesn't work out mail me directly and I can provide you with some
> screen shots. The method that Paul N8HM mentioned will probably also
> work, but you will lose audio output from your speakers.
>
> HTH,
>
>
> Hans
>
> BX2ABT
>
> On 10/24/18 11:42 AM, Wendy and Terry Osborne wrote:
> > Hi Folks,
> >
> > I have just got an old Toshiba A100 laptop running on Linux.
> > I have GPredict, gqrx and FoxTelem running.
> >
> > Does anyone have any ideas on how to get gqrx feeding audio to FoxTelem?
> > Thanks,
> > 73,
> > Terry Osborne ZL2BAC
> > _______________________________________________
> > 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: 4
Date: Wed, 24 Oct 2018 12:43:02 -0400 (EDT)
From: alex weimer <ingejack@???.???>
To: amsat-bb@?????.???
Subject: [amsat-bb] icom IC821H SUB mode
Message-ID: <181147494.428087.1540399382643@???????.???.???>
Content-Type: text/plain; charset=UTF-8
I have an Icom IC821H which is running flawlessly with the exception of the
SUB light flashing intermittently while in SAT Mode ! It doesn't seem to
affect the operation however it is annoying to see it continuously blinking
Sub Sub Sub etc. I have the squelch set the highest and the audio set the
lowest on the SUB band. I can shut off the SUB band completely but that
doesn't help when I want to be in Full Duplex mode for the sats.
Does anyone else owning an ICOM IC821H have this problem ? I would be
interested to find out iof there is a cure for it or if this is just SOP for
this radio ! There is nothing in the manual pertaining to this problem.
Thanks JACK KC7MG
------------------------------
Message: 5
Date: Wed, 24 Oct 2018 09:59:20 -0700
From: "ronald mosher" <rfmosher@???.???>
To: <amsat-bb@?????.???>
Subject: [amsat-bb] Portable, Full-Duplex Transceiver
Message-ID: <000801d46bba$e87ecc20$b97c6460$@???.???>
Content-Type: text/plain; charset="US-ASCII"
I am new to satellite communication and this is my first post. My setup so
far includes an Arrow antenna on a camera tripod, an SDR (RSP) and SatPC32
software on a Surface Pro. I would like to buy a portable, HF/VHF/UHF,
Full-Duplex transceiver that I can use for both portable HF QRP and for
satellite work. So far, I have not been able to find such a radio. Any
recommendations would be much appreciated.
Also, I would like to buy or build an AZ-EL rotator that is suitable for a
portable setup. I am leaning toward building as a less expensive
alternative. I have been studying the WRAPS version by WA8SME and the Mini
Mk-2 by VK3FOWL and VK3YSP. Both look to be of about equal construction
complexity. Any thoughts on either if these rotators, or any other
inexpensive rotator would also be very much appreciated.
It is exciting to be learning a new phase of ham radio and to be a part of
this group. Thank you for any suggestions.
73,
Ron K0PGE
------------------------------
Message: 6
Date: Wed, 24 Oct 2018 15:00:10 -0400
From: Mike Diehl <diehl.mike.a@?????.???>
To: ronald mosher <rfmosher@???.???>
Cc: amsat-bb@?????.???
Subject: Re: [amsat-bb] Portable, Full-Duplex Transceiver
Message-ID: <62502C21-7FFC-407C-B5DB-872A569D4D14@?????.???>
Content-Type: text/plain; charset=utf-8
I?m unaware of a QRP HF rig that can do full duplex satellite as well.
However, since yaesu doesn?t make an official FT-1634 you can make one with
2 FT-817?s, one for the uplink and the other for down. If you?re buying new
it would be two FT-818?s so I guess that would make it an FT-1636.
There are some rigs that do HF and satellite like the TS-2000 and IC-9100
but they?re not QRP rigs.
73,
Mike Diehl
W8LID/VE6LID
> On Oct 24, 2018, at 12:59, ronald mosher <rfmosher@???.???> wrote:
>
> I am new to satellite communication and this is my first post. My setup so
> far includes an Arrow antenna on a camera tripod, an SDR (RSP) and SatPC32
> software on a Surface Pro. I would like to buy a portable, HF/VHF/UHF,
> Full-Duplex transceiver that I can use for both portable HF QRP and for
> satellite work. So far, I have not been able to find such a radio. Any
> recommendations would be much appreciated.
>
>
>
> Also, I would like to buy or build an AZ-EL rotator that is suitable for a
> portable setup. I am leaning toward building as a less expensive
> alternative. I have been studying the WRAPS version by WA8SME and the Mini
> Mk-2 by VK3FOWL and VK3YSP. Both look to be of about equal construction
> complexity. Any thoughts on either if these rotators, or any other
> inexpensive rotator would also be very much appreciated.
>
>
>
> It is exciting to be learning a new phase of ham radio and to be a part of
> this group. Thank you for any suggestions.
>
> 73,
>
> Ron K0PGE
>
> _______________________________________________
> 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, 24 Oct 2018 15:51:34 -0400
From: Bob <WB4SON@?????.???>
To: ingejack@???.???
Cc: AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] icom IC821H SUB mode
Message-ID:
<CAPonRZ8FjgcR8xe8X_stb2c=6AJbuvNxnweSx7OAvL_NQPr9XA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
I can't speak for the IC821, but the behavior you describe is perfectly
normal for the IC-910H and IC-9100. Every time that SATPC32 updates the
uplink frequency it has to momentarily change to the SUB band to do so.
That's what the blink is, it is SATPC32 doing its job. If you notice the
73, Bob, WB4SON
On Wed, Oct 24, 2018 at 12:46 PM alex weimer <ingejack@???.???> wrote:
> I have an Icom IC821H which is running flawlessly with the exception of
> the SUB light flashing intermittently while in SAT Mode ! It doesn't seem
> to affect the operation however it is annoying to see it continuously
> blinking Sub Sub Sub etc. I have the squelch set the highest and the audio
> set the lowest on the SUB band. I can shut off the SUB band completely but
> that doesn't help when I want to be in Full Duplex mode for the sats.
>
> Does anyone else owning an ICOM IC821H have this problem ? I would be
> interested to find out iof there is a cure for it or if this is just SOP
> for this radio ! There is nothing in the manual pertaining to this
> problem. Thanks JACK KC7MG
> _______________________________________________
> 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, 24 Oct 2018 16:03:04 -0400 (EDT)
From: alex weimer <ingejack@???.???>
To: Bob <WB4SON@?????.???>
Cc: AMSAT-BB <amsat-bb@?????.???>
Subject: Re: [amsat-bb] icom IC821H SUB mode
Message-ID: <856042422.414312.1540411384416@???????.???.???>
Content-Type: text/plain; charset=UTF-8
Thanks Bob. That is exactly what is happening. Now that I know it is normal
I can sleep tonight not having to worry about it 73 JACK KC7MG
> On October 24, 2018 at 3:51 PM Bob <WB4SON@?????.???> wrote:
>
> I can't speak for the IC821, but the behavior you describe is
perfectly normal for the IC-910H and IC-9100. Every time that SATPC32
updates the uplink frequency it has to momentarily change to the SUB band to
do so. That's what the blink is, it is SATPC32 doing its job. If you
notice the
>
> 73, Bob, WB4SON
>
>
> On Wed, Oct 24, 2018 at 12:46 PM alex weimer < ingejack@???.???
mailto:ingejack@???.??? > wrote:
>
> > > I have an Icom IC821H which is running flawlessly with the
exception of the SUB light flashing intermittently while in SAT Mode ! It
doesn't seem to affect the operation however it is annoying to see it
continuously blinking Sub Sub Sub etc. I have the squelch set the highest
and the audio set the lowest on the SUB band. I can shut off the SUB band
completely but that doesn't help when I want to be in Full Duplex mode for
the sats.
> >
> > Does anyone else owning an ICOM IC821H have this problem ? I
would be interested to find out iof there is a cure for it or if this is
just SOP for this radio ! There is nothing in the manual pertaining to this
problem. Thanks JACK KC7MG
> > _______________________________________________
> > 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
> >
> > >
------------------------------
Message: 9
Date: Wed, 24 Oct 2018 13:15:02 -0700
From: Joe Spier <wao@???.???>
To: "Keith E. Brandt, WD9GET" <wd9get@?????.???>, johnbrier@?????.????
AMSAT <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Intro AMSAT presentation
Message-ID: <9d34aca1-d00b-8d3e-2c66-162d14c9e110@???.???>
Content-Type: text/plain; charset=utf-8; format=flowed
Keith,
Please don't use the PowerPoint I gave to SFARC. It's been painfully
pointed out to me the many errors in it. AMSAT Ambassadors are working
on a 5 powerpoint set for intro to clubs, etc. Should be available shortly.
-73, Joe Spier, K6WAO
President, AMSAT
On 10/23/18 5:20 PM, Keith E. Brandt, WD9GET wrote:
> Thanks John, but I should have specified I'd prefer a PowerPoint deck so I
> could tweak it to the specific group.
>
> On Tue, Oct 23, 2018 at 7:09 PM John Brier <johnbrier@?????.???> wrote:
>
>> Here is a video of one:
>>
>> https://www.youtube.com/watch?v=IDSv3z7a_x4
>>
>>
>> On Tue, Oct 23, 2018 at 8:05 PM Keith E. Brandt, WD9GET <wd9get@?????.???>
>> wrote:
>>
>>> Could someone please send me a basic AMSAT presentation that I could use
>>> as a basis for a club presentation?
>>> --
>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>> Keith E. Brandt, MD, MPH
>>> /wd9get@?????.????
>>>
>>> /Christianity and science are opposed? but only in the same sense as my
>>> thumb
>>> and forefinger are opposed- and between them I can grasp everything.
>>> /?Sir William Bragg (Nobel Prize for Physics- 1915)
>>>
>>> *This message transmitted with 100% recycled electrons
>>> _______________________________________________
>>> 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: 10
Date: Wed, 24 Oct 2018 21:19:55 +0000 (UTC)
From: "R.T.Liddy" <k8bl@?????????.???>
To: Mike Diehl <diehl.mike.a@?????.???>, ronald mosher
<rfmosher@???.???>
Cc: "amsat-bb@?????.???? <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Portable, Full-Duplex Transceiver
Message-ID: <783358435.423002.1540415995495@????.?????.???>
Content-Type: text/plain; charset=UTF-8
Ron,
I have an ICOM IC-820 All-Mode rig that I have been using
as a portable/rover for over 6 years. My antenna, like yours,
is an Arrow on a camera tripod. The rig is powered from whatever
vehicle I'm using at the time. All the Satellite info I need
is from my Phone using the AmsatDroidFree App and I control
the Rig and Antenna completely manually. Logging is done with
a Digital Recorder with the Mic placed in one of the earpieces
of my headphones to record both sides of the QSOs. I transcribe
the info later for uploading to LoTW.
To date, I've roved in 115 Grids in 3 Countries and made thousands
of Satellite QSOs. This is a very minimal straightforward setup
that works very well. I've never felt the need for having any
kind of automated control of a rig or antenna while out in the
hinterlands. It just creates more things to set up and take down
and have go wrong when you're plugging/unplugging a bunch of
things over and over again. My theory is the "KISS" principle
for portable operating.
GL/73, Bob K8BL
________________________________
From: Mike Diehl <diehl.mike.a@?????.???>
To: ronald mosher <rfmosher@???.???>
Cc: amsat-bb@?????.???
Sent: Wednesday, October 24, 2018 3:00 PM
Subject: Re: [amsat-bb] Portable, Full-Duplex Transceiver
I?m unaware of a QRP HF rig that can do full duplex satellite as well.
However, since yaesu doesn?t make an official FT-1634 you can make one with
2 FT-817?s, one for the uplink and the other for down. If you?re buying new
it would be two FT-818?s so I guess that would make it an FT-1636.
There are some rigs that do HF and satellite like the TS-2000 and IC-9100
but they?re not QRP rigs.
73,
Mike Diehl
W8LID/VE6LID
> On Oct 24, 2018, at 12:59, ronald mosher <rfmosher@???.???> wrote:
>
> I am new to satellite communication and this is my first post. My setup so
> far includes an Arrow antenna on a camera tripod, an SDR (RSP) and SatPC32
> software on a Surface Pro. I would like to buy a portable, HF/VHF/UHF,
> Full-Duplex transceiver that I can use for both portable HF QRP and for
> satellite work. So far, I have not been able to find such a radio. Any
> recommendations would be much appreciated.
>
>
>
> Also, I would like to buy or build an AZ-EL rotator that is suitable for a
> portable setup. I am leaning toward building as a less expensive
> alternative. I have been studying the WRAPS version by WA8SME and the Mini
> Mk-2 by VK3FOWL and VK3YSP. Both look to be of about equal construction
> complexity. Any thoughts on either if these rotators, or any other
> inexpensive rotator would also be very much appreciated.
>
>
>
> It is exciting to be learning a new phase of ham radio and to be a part of
> this group. Thank you for any suggestions.
>
> 73,
>
> Ron K0PGE
>
> _______________________________________________
> 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: 11
Date: Wed, 24 Oct 2018 14:30:15 -0700
From: Greg D <ko6th.greg@?????.???>
To: Joe Spier <wao@???.???>, "Keith E. Brandt, WD9GET"
<wd9get@?????.???>, johnbrier@?????.???? AMSAT <amsat-bb@?????.???>
Subject: Re: [amsat-bb] Intro AMSAT presentation
Message-ID: <6b250c1c-705e-9aa8-2a98-acf97d2c17b5@?????.???>
Content-Type: text/plain; charset=UTF-8
Awww, it wasn't that bad. But I haven't given out the actual deck,
presuming it's probably evolved. Good to hear that it's doing so. The
video reference was a suggestion for potential presentation content.
Greg KO6TH
Joe Spier wrote:
> Keith,
>
> Please don't use the PowerPoint I gave to SFARC. It's been painfully
> pointed out to me the many errors in it. AMSAT Ambassadors are working
> on a 5 powerpoint set for intro to clubs, etc. Should be available
> shortly.
>
> -73, Joe Spier, K6WAO
> President, AMSAT
>
> On 10/23/18 5:20 PM, Keith E. Brandt, WD9GET wrote:
>> Thanks John, but I should have specified I'd prefer a PowerPoint deck
>> so I
>> could tweak it to the specific group.
>>
>> On Tue, Oct 23, 2018 at 7:09 PM John Brier <johnbrier@?????.???> wrote:
>>
>>> Here is a video of one:
>>>
>>> https://www.youtube.com/watch?v=IDSv3z7a_x4
>>>
>>>
>>> On Tue, Oct 23, 2018 at 8:05 PM Keith E. Brandt, WD9GET
>>> <wd9get@?????.???>
>>> wrote:
>>>
>>>> Could someone please send me a basic AMSAT presentation that I
>>>> could use
>>>> as a basis for a club presentation?
>>>> --
>>>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>>> Keith E. Brandt, MD, MPH
>>>> /wd9get@?????.????
>>>>
>>>> /Christianity and science are opposed? but only in the same sense
>>>> as my
>>>> thumb
>>>> and forefinger are opposed- and between them I can grasp everything.
>>>> /?Sir William Bragg (Nobel Prize for Physics- 1915)
>>>>
>>>> *This message transmitted with 100% recycled electrons
>>>> _______________________________________________
>>>> 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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Message: 12
Date: Wed, 24 Oct 2018 17:43:26 -0400
From: Burns Fisher <burns@??????.??>
To: AMSAT BB <amsat-bb@?????.???>
Cc: g0lvb@?????.???
Subject: [amsat-bb] Extended info about calibrating your LVB tracker
and G5500 rotor
Message-ID:
<CABX7KxV=KvuUXO6rXcK5EmDh9mNJ=hRGbHbwZ1dxJOZg=akxyA@????.?????.???>
Content-Type: text/plain; charset="UTF-8"
For some reason the 5500 and the LVB in my system got out of whack. It may
have been when I switched from "450 degree azimuth" mode to "flip" (i.e.
180 elevation) mode. I don't know. But even after calibrating the LVB
several times, it would not set the elevation to 180 and setting it to
90 degrees ended up something like 15 degrees off.
I took the LVB cover off to access the connections to the 5500, and
discovered that far from sending an analog voltage of 2 to 4.5V to equal 0
to 180 degrees as the Yaesu docs say, the 5500 was sending 0V to 5.5 or
so. A bit more work found that the LVB did not respond to much more than
5V. I assume that is the reference voltage on the A/D converter.
A look at the schematic on the 5500 found a pot that appeared to adjust the
voltage to the LVB independently of the meters. There is zero
documentation, but the back of the 5500 case actually has 4 pots: Max
meter and Max output for both Az and El. So holding my breath, I turned
the Max Output pot and sure enough the voltage to the LVB went down. I set
the rotor elevation to 180 degrees (by eye) and then turned the pot till
the LVB readout just started changing. Then I used the LVB calibration
procedure to match that location to what the LVB thought was 180. Voila!
90 is now pretty good too.
In retrospect, this is not inobvious; however the fact that the Yaesu docs
say 2V to 4.5V and the fact that the LVB was not responding beyond a
certain elevation required some investigation. Hopefully this little post
will save someone else from having to repeat the investigation.
73,
Burns, WB1FJ
------------------------------
Message: 13
Date: Wed, 24 Oct 2018 19:23:10 -0400
From: Bob KD7YZ <kd7yz@???????????.??>
To: amsat-bb@?????.???
Subject: Re: [amsat-bb] Need help figuring out ISS Packet UPlink stuff
Message-ID: <6c91b713-bda8-0b83-5681-8ad971b24db6@???????????.??>
Content-Type: text/plain; charset=utf-8
On 10/23/2018 11:40, Jean Marc Momple wrote:
> 2) After a while fed-up with all that I put everything to default and try
again, and just played with the Signallink Tx volume starting at the minimum
level and it simply worked out first time. Was just over modulating.
Winner! Jean Marc
I played with the audio and ended up get DigiPeated off he ISS.
So I have A rigblaster that works the IC-910H. T^he have their own audio
codec and a knob on the box. Then there is Sound Control Panel in Win-10
... and so forth and so on .
It may be that I had them combined, too high. I did reduce severely and
that did not affect the output power.
thanks for the help everyone.
--
73,
Bob KD7YZ
------------------------------
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Sent via amsat-bb@?????.???.
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AMSAT-NA.
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End of AMSAT-BB Digest, Vol 13, Issue 351
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