| |
CX2SA > SATDIG 30.11.09 10:22l 834 Lines 29901 Bytes #999 (0) @ WW
BID : AMSATBB4632
Read: GUEST
Subj: AMSAT-BB-digest V4 632
Path: IZ3LSV<IK2XDE<DB0RES<ON0AR<HS1LMV<CX2SA
Sent: 091130/0820Z @:CX2SA.LAV.URY.SA #:21521 [Minas] FBB7.00e $:AMSATBB4632
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. Yubileiniy-2 (Trevor .)
2. Stand alone real time tracker (William Leijenaar)
3. Re: Stand alone real time tracker (w4upd)
4. Re: Stand alone real time tracker (Andre PH7AT)
5. Re: Stand alone real time tracker (Andre PH7AT)
6. AO-51 mode change (Andrew Glasbrenner)
7. Re: Stand alone real time tracker (Bruce Robertson)
8. Frustration (Michael Tondee)
9. Re: Frustration (Andrew Glasbrenner)
10. Re: Frustration (Bruce Robertson)
11. Re: Frustration (w4upd)
12. Boost To higher Orbits? (Idle-Tyme)
13. Re: Frustration (Michael Tondee)
14. IC-32A/Arrow antenna with duplexer (Mike)
15. Auto-Tune (RFI-EMI-GUY)
16. Re: Auto-Tune (Luc Leblanc)
17. Re: Auto-Tune (Greg D.)
----------------------------------------------------------------------
Message: 1
Date: Sun, 29 Nov 2009 21:13:26 +0000 (GMT)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
Subject: [amsat-bb] Yubileiniy-2
To: amsat-bb@xxxxx.xxx
Message-ID: <500076.821.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Can't remember if this link has been posted before
http://www.iss-reshetnev.com/?cid=news&nid=136
It's concerning Yubileiniy-2 which is slated for a December 28 launch into a
1400 km orbit. It mentions Aerospace Vehicle Laboratory ROSTO providing the
radio system, didn't they also do RS-15 ?
The first Yubileiniy used 435 MHz.
73 Trevor M5AKA
------------------------------
Message: 2
Date: Sun, 29 Nov 2009 14:11:35 -0800 (PST)
From: William Leijenaar <pe1rah@xxxxx.xxx>
Subject: [amsat-bb] Stand alone real time tracker
To: amsat-bb@xxxxx.xxx
Message-ID: <264356.54443.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Hi AMSATs,
For some longer time I have been looking for a way to get a stand-alone
real-time satellite tracking system, without the use of a dual-core, GHz
speed power consuming computer :o) To my suprise I didn't found much, only
one design called trakbox which can be found E.g at the following tapr
website:
http://www.tapr.org/kits_trakbox.html
Unfortunatly it is not available anymore, and the mean reason I guess is the
outdated components.
I found out that the design originates from JAMSAT. Maybe someone has data
(schematic, PCB layout, source code) of this design ?
I wonder with todays highly integrated microcontrollers if there is some
modern kind of real-time-tracker available ?
I am looking for a system that works just seconds after switching on the
power supply and not something that first has to boat 15min and needs a
mouse to work.
73, PE1RAH
William Leijenaar
www.leijenaarelectronics.nl
---
Send instant messages to your online friends http://uk.messenger.yahoo.com
------------------------------
Message: 3
Date: Sun, 29 Nov 2009 17:23:50 -0500
From: w4upd <updwrb@xxxxxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Stand alone real time tracker
To: William Leijenaar <pe1rah@xxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <4B12F476.40705@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
GO to the following FTP location at my site. I think you'll find what
you need there. If not let me know and I'll look to see if I have other
info related to the Trakbox.
ftp://bristor-assoc.com/pub/Amateur/TrakBox/
Reid, W4UPD
William Leijenaar wrote:
> Hi AMSATs,
>
> For some longer time I have been looking for a way to get a stand-alone
real-time satellite tracking system, without the use of a dual-core, GHz
speed power consuming computer :o) To my suprise I didn't found much, only
one design called trakbox which can be found E.g at the following tapr
website:
> http://www.tapr.org/kits_trakbox.html
>
> Unfortunatly it is not available anymore, and the mean reason I guess is
the outdated components.
> I found out that the design originates from JAMSAT. Maybe someone has data
(schematic, PCB layout, source code) of this design ?
>
> I wonder with todays highly integrated microcontrollers if there is some
modern kind of real-time-tracker available ?
> I am looking for a system that works just seconds after switching on the
power supply and not something that first has to boat 15min and needs a
mouse to work.
>
> 73, PE1RAH
> William Leijenaar
> www.leijenaarelectronics.nl
> ---
>
> Send instant messages to your online friends http://uk.messenger.yahoo.com
> _______________________________________________
> 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
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 9.0.709 / Virus Database: 270.14.87/2535 - Release Date: 11/29/09
14:31:00
>
>
------------------------------
Message: 4
Date: Mon, 30 Nov 2009 00:23:11 +0100
From: Andre PH7AT <ph7at@xxxxx.xxx>
Subject: [amsat-bb] Re: Stand alone real time tracker
To: amsat-bb@xxxxx.xxx
Message-ID: <4B13025F.70701@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi William,
Check out the LVB tracker by Howard G6LVB.
You can "upgrade" the standard version to be a stand-alone tracker unit.
It uses a PIC 18F2620 microcontroller.
73, Andre PH7AT
William Leijenaar wrote:
> Hi AMSATs,
>
> For some longer time I have been looking for a way to get a stand-alone
real-time satellite tracking system, without the use of a dual-core, GHz
speed power consuming computer :o) To my suprise I didn't found much, only
one design called trakbox which can be found E.g at the following tapr
website:
> http://www.tapr.org/kits_trakbox.html
>
> Unfortunatly it is not available anymore, and the mean reason I guess is
the outdated components.
> I found out that the design originates from JAMSAT. Maybe someone has data
(schematic, PCB layout, source code) of this design ?
>
> I wonder with todays highly integrated microcontrollers if there is some
modern kind of real-time-tracker available ?
> I am looking for a system that works just seconds after switching on the
power supply and not something that first has to boat 15min and needs a
mouse to work.
>
> 73, PE1RAH
> William Leijenaar
> www.leijenaarelectronics.nl
> ---
>
> Send instant messages to your online friends http://uk.messenger.yahoo.com
> _______________________________________________
> 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: 5
Date: Mon, 30 Nov 2009 00:33:44 +0100
From: Andre PH7AT <ph7at@xxxxx.xxx>
Subject: [amsat-bb] Re: Stand alone real time tracker
To: amsat-bb@xxxxx.xxx
Message-ID: <4B1304D8.3000801@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
And here is the missing link...
http://www.g6lvb.com/Articles/LVBTracker2/index.htm
73, Andre PH7AT
Andre PH7AT wrote:
> Hi William,
>
> Check out the LVB tracker by Howard G6LVB.
> You can "upgrade" the standard version to be a stand-alone tracker unit.
> It uses a PIC 18F2620 microcontroller.
>
> 73, Andre PH7AT
>
>
> William Leijenaar wrote:
>
>> Hi AMSATs,
>>
>> For some longer time I have been looking for a way to get a stand-alone
real-time satellite tracking system, without the use of a dual-core, GHz
speed power consuming computer :o) To my suprise I didn't found much, only
one design called trakbox which can be found E.g at the following tapr
website:
>> http://www.tapr.org/kits_trakbox.html
>>
>> Unfortunatly it is not available anymore, and the mean reason I guess is
the outdated components.
>> I found out that the design originates from JAMSAT. Maybe someone has
data (schematic, PCB layout, source code) of this design ?
>>
>> I wonder with todays highly integrated microcontrollers if there is some
modern kind of real-time-tracker available ?
>> I am looking for a system that works just seconds after switching on the
power supply and not something that first has to boat 15min and needs a
mouse to work.
>>
>> 73, PE1RAH
>> William Leijenaar
>> www.leijenaarelectronics.nl
>> ---
>>
>
------------------------------
Message: 6
Date: Sun, 29 Nov 2009 18:43:33 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] AO-51 mode change
To: Amsat-BB <amsat-bb@xxxxx.xxx>, AO51 Modes <ao51-modes@xxxxx.xxx>
Message-ID: <4B130725.5060008@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
AO-51 is back to it's normal configuration, 145.920/435.300 repeater at
510mw, and 1268.700/435.150 BBS at 540mw. The digipeater is on, and I
apologize to our Japanese friends who are fond of using the digipeater
that we have neglected to make sure it stays on.
The BBS is set to a slightly higher than normal power to assist with
collection of background WOD (whole orbit data) for a few days. Later
this week we will attempt to flip the spacecraft for the first time
using the reversible magnet. This should result in a slightly better
downlink in the Southern Hemisphere, and slightly poorer in the Northern
Hemisphere. Careful, calibrated measurements pre- and post- maneuver are
welcome to ao51-modes@xxxxx.xxx.
Twitter users can receive tweets from the AO-51 command team at
http://twitter.com/AMSAT or by adding "AMSAT" to your follow list.
73, Drew KO4MA
------------------------------
Message: 7
Date: Sun, 29 Nov 2009 19:54:53 -0400
From: Bruce Robertson <ve9qrp@xxxxx.xxx>
Subject: [amsat-bb] Re: Stand alone real time tracker
To: w4upd <updwrb@xxxxxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxxx William Leijenaar <pe1rah@xxxxx.xxx>
Message-ID:
<49657a760911291554q713ab951wad5b97f8e43ee542@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On Sun, Nov 29, 2009 at 6:23 PM, w4upd <updwrb@xxxxxxxxxxxxx.xxx> wrote:
> GO to the following FTP location at my site. I think you'll find what
> you need there. If not let me know and I'll look to see if I have other
> info related to the Trakbox.
>
> ? ? ? ? ?ftp://bristor-assoc.com/pub/Amateur/TrakBox/
>
> Reid, W4UPD
>
>
>
> William Leijenaar wrote:
>> Hi AMSATs,
>>
>> For some longer time I have been looking for a way to get a stand-alone
real-time satellite tracking system, without the use of a dual-core, GHz
speed power consuming computer :o) To my suprise I didn't found much, only
one design called trakbox which can be found E.g at the following tapr
website:
>> http://www.tapr.org/kits_trakbox.html
>>
>> Unfortunatly it is not available anymore, and the mean reason I guess is
the outdated components.
>> I found out that the design originates from JAMSAT. Maybe someone has
data (schematic, PCB layout, source code) of this design ?
>>
>> I wonder with todays highly integrated microcontrollers if there is some
modern kind of real-time-tracker available ?
>> I am looking for a system that works just seconds after switching on the
power supply and not something that first has to boat 15min and needs a
mouse to work.
>>
William --
It depends what you mean by tracker, since the word is a bit widely
used in English. It could mean 1) a device that, in response to az/el
values submitted on a serial line, controls antenna rotors to track a
satellite, or 2) a device that calculates those az/el values (as well
as downlink and uplink frequencies, e.g.), or 3) something that does
both of these tasks.
There are many commercial and one-off instances of #1. Trackbox above
is an instance of #3, though I don't believe it is still being kitted.
The LVBtracker is best known as an instance of #1 above, but in fact
the latest version is an example of #3 above. It is available from
AMSAT-UK as a kit, and from AMSAT-NA as a completed product.
If you'd like to explore an extremely low-power and small footprint
device that will do #2 above, you might want to consider the
qrpTracker libraries and applications I've written and ported for the
Arduino platform, available at http://code.google.com/p/qrptracker/
with a website at http://sites.google.com/site/qrptracker/ I think
hobbiests might find this easy to work with because the various
building blocks -- like Plan 13 tracking code, TLE-storage and -access
routines and rig-control activies -- have been packaged into C++
classes. Moreover, the Arduino hardware is ubiquitous, standard and
relatively cheap.
My youtube video demoing how this code and hardware could be used
onboard a satellite to save power made the rounds a couple of weeks
ago:
http://www.youtube.com/watch?v=QSUK7Jq3LCY
In a day or so I hope to post a video of the same device
doppler-tuning my FT-817. The long-term terrestrial goal is to provide
a satellite-selecting and doppler tuning 'dongle' for this and the
TH-D7A.
73, Bruce
http://ve9qrp.blogspot.com
------------------------------
Message: 8
Date: Sun, 29 Nov 2009 19:02:48 -0500
From: Michael Tondee <mat_62@xxxxxxxxxxxx.xxx>
Subject: [amsat-bb] Frustration
To: AMSAT-BB@xxxxx.xxx
Message-ID: <4B130BA8.9060505@xxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I've been trying to get my receive setup going the last few days but I'm
having horrible results. I have my 11 element 70cm "cheap yagi" back up
on the mast and my homebrew SaebrTrack and OR-360 AZ/EL TV rotator
system interfaced to SatPC32.
I have an ARR preamp mounted at the mast fed with a seperate 12VDC
feed and about a 40 foot run of JEFA brand LMR 400. Once I get into
the shack there is a bit of patchwork to the cables. I'm using a Yaesu
VX3 to receive and due to the SMA connector on the HT and not wanting to
strain it I have a 4 foot adapter cable of LMR 100 that goes from an
SMA to a SO-239. I then have to use a short length of coax with a PL-259
to N male to mate up with a N barrel connector connected to my LMR 400
coming from outside. Now obviously, I know this isn't optimum and eats
up valuable RF and I intend to change it ASAP but I'm hearing
absolutely nothing on AO-51 passes. Not even the hint of signals.
I'm thinking with that preamp in the line I should at lest hear
something discernible besides noise regardless of the patchwork of
cables. Am I off base in thinking this? I did catch just a bit of
discernible signal off SO-50 last night but it was almost overhead.
I'm not a beginner at this but I'm frustrated. Perhaps I'm putting too
much faith in the preamp to push the signals through my hodgepodge of
adapters and cables? Any thoughts are appreciated.
73,
Michael, W4HIJ
------------------------------
Message: 9
Date: Sun, 29 Nov 2009 19:17:50 -0500
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Frustration
To: Michael Tondee <mat_62@xxxxxxxxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Message-ID: <4B130F2E.8000301@xxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Do you hear a noise increase when you power up the preamp? If not, are
you sure you are getting power to it? Can you hear terrestrial
repeaters, and does the signal change when you cycle the preamp power?
Check your ins and outs on the preamp to make sure they didn't get
reversed. Same thing for any diplexer you may be using as a high pass
filter.
More of the obvious...sure you are tracking correctly, and at the right
time?
I wouldn't suspect any of the cabling or adapters other than one being
flat out broken. The preamp should easily overcome any shortcomings of
the cable you've described.
73, Drew KO4MA
------------------------------
Message: 10
Date: Sun, 29 Nov 2009 20:29:27 -0400
From: Bruce Robertson <ve9qrp@xxxxx.xxx>
Subject: [amsat-bb] Re: Frustration
To: Michael Tondee <mat_62@xxxxxxxxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Message-ID:
<49657a760911291629o5af32dcfsfd4542e956f46b96@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On Sun, Nov 29, 2009 at 8:02 PM, Michael Tondee <mat_62@xxxxxxxxxxxx.xxx>
wrote:
> I've been trying to get my receive setup going the last few days but I'm
> having horrible results. I have my 11 element 70cm "cheap yagi" back up
> on the mast and my homebrew SaebrTrack and OR-360 ?AZ/EL TV rotator
> system interfaced to SatPC32.
> ?I have an ARR preamp mounted at the mast fed with a seperate 12VDC
> feed and about a 40 foot run of ?JEFA ?brand LMR 400. Once I get into
> the shack there is a bit of patchwork to the cables. I'm using a Yaesu
> VX3 to receive and due to the SMA connector on the HT and not wanting to
> strain it I have a 4 foot adapter cable ?of ?LMR 100 that goes from an
> SMA to a SO-239. I then have to use a short length of coax with a PL-259
> to N male to mate up with a N barrel connector connected to my LMR 400
> coming from outside. Now obviously, I know this isn't optimum and eats
> up valuable RF and I intend to change it ASAP ?but I'm hearing
> absolutely nothing on AO-51 passes. Not even the hint of signals.
> I'm thinking with that preamp in the line I should at lest hear
> something discernible besides noise regardless of the patchwork of
> cables. Am I off base in thinking this? I did catch just a bit of
> discernible signal off ?SO-50 last night but it was almost overhead.
> ?I'm not a beginner at this but I'm frustrated. Perhaps I'm putting too
> much faith in the preamp to push the signals through my hodgepodge of
> adapters and cables? Any thoughts are appreciated.
> 73,
> Michael, W4HIJ
Michael --
I think something is quite amiss here, perhaps a connector is bad or a
bad joint in one of the cables. I bet a couple of hours with a
volt-ohmmeter will find the guilty party. Alternatively, you could be
in a bad noise situation.
By way of comparison, because of my digital project right now I have a
very minimal station, with a 70cm vertical antenna soldered directly
onto a N-connector. About 10' of LMR400 goes to the preamp, which then
has another 100' of cable to my FT-817. AO-51 is not great copy, but I
know it is there. Similarly, all the usual cubesats in CW mode, and
SEEDS (CO-66) with its fine FM signal of cheering Japanese
school-children.
(Actually, this got me thinking that SEEDS would make a pretty good
way of evaluating two side-by-side receiving systems. Pass the
resulting wav files through a SSTV decoder, and the one with the
better picture wins!)
You might consider making a very simple vertical antenna, attaching it
to one end of the preamp with a very small patch cord between it and
the radio, and using that as a kind of baseline.
73, Bruce
--
http://ve9qrp.blogspot.com
------------------------------
Message: 11
Date: Sun, 29 Nov 2009 19:40:21 -0500
From: w4upd <updwrb@xxxxxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Frustration
To: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
Cc: AMSAT-BB@xxxxx.xxx
Message-ID: <4B131475.4000108@xxxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I concur with what Drew states here. I am presently using (not by
choice) a minimum setup with a 1/4 wave 2 meter homebrew groundplane for
70cm reception. I have an in-shack pre-amp that I use when I get serious
in working AO-71 but I hear it rather well above 20 degrees without the
preamp. I am limited to about 20 degrees or higher due to using the
ground plane and a Ringo Ranger II for the two meter up link. Above 20
degrees the ground plan works well but the Ringo begins to lose signal
due to radiation angle.
I recommend following Drew's suggestion and also insure that your array
is pointed correctly. An 11 element array can be narrow enough to easily
null out the signal if you are not in the 15 - 20 degrees beam width.
Reid, W4UPD
Andrew Glasbrenner wrote:
> Do you hear a noise increase when you power up the preamp? If not, are
> you sure you are getting power to it? Can you hear terrestrial
> repeaters, and does the signal change when you cycle the preamp power?
>
> Check your ins and outs on the preamp to make sure they didn't get
> reversed. Same thing for any diplexer you may be using as a high pass
> filter.
>
> More of the obvious...sure you are tracking correctly, and at the right
> time?
>
> I wouldn't suspect any of the cabling or adapters other than one being
> flat out broken. The preamp should easily overcome any shortcomings of
> the cable you've described.
>
> 73, Drew KO4MA
>
------------------------------
Message: 12
Date: Sun, 29 Nov 2009 18:49:45 -0600
From: Idle-Tyme <nss@xxx.xxx>
Subject: [amsat-bb] Boost To higher Orbits?
To: AMSAT-BB@xxxxx.xxx
Message-ID: <4B1316A9.7080906@xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi all,
This is now WAY out in crazy thinking. But we all know how a wind speed
anemometer works right? The flat side has more resistance to the
"Wind" than the rounded front side, so it has greater pressure exerted
on it right? This would even work with not so much half spheres as in a
traditional anemometer but with like pyramids shapes i would also think.
Now does solar "Wind' have pressures similar to air "Wind"? obviously
it does or they wouldn't be thinking if trying to use it right?
I know it's exceedingly small amounts of pressure. but if we were to
launch into an orbit that is as close to the equator as possible and the
bird deploys as large as possible equivalent of an anemometer cup and
it's positioned so that it's base is perpendicular to the solar wind
when it is directly at right angles to the earth and sun.
This tiny push, and then 180 deg later less push then 180 deg later
more push etc.
think this bird could ever so slowly in a spiral raise it's orbit?
Crazy? what's anyone think?
Joe WB9SBD
--
*The Original Rolling Ball Clock
http://www.idle-tyme.com*
------------------------------
Message: 13
Date: Sun, 29 Nov 2009 20:21:58 -0500
From: Michael Tondee <mat_62@xxxxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Frustration
To: Amsat BB <amsat-bb@xxxxx.xxx>
Message-ID: <4B131E36.30502@xxxxxxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Andrew,
I definitely can heart an increase in noise when I power up the preamp
and also see an S-meter response. Unfortunately I have absolutely no
terrestrial repeaters within my range on 70cm. I've never been able to
get into one even back in the days when I had my TS-2000X. Never been
able to hear them either. Checked the preamp cables to make sure they
weren't backwards also.
In reference to some questions from others I've had, I am compensating
for doppler on receive and I've checked all my cables except for the 40
foot piece of LMR 400 for open or short with an ohmmeter.
Just for giggles I decided to see if I could copy NOAA weather on 162
Mhz band and I can. Don't know if that means anything. I will check my
antenna pointing. Getting an accurate fix on true north has sort of been
my achilles heel before but I've managed.There is not that much
declination here. When I did happen to pick up the brief SO-50
transmission last night the rotator was making a fairly large change in
Azimuth though. I may just whip up a quick little groundplane to give me
a baseline as someone suggested also.
Thanks for all the responses I've gotten so far.
Michael
Andrew Glasbrenner wrote:
> Do you hear a noise increase when you power up the preamp? If not, are
> you sure you are getting power to it? Can you hear terrestrial
> repeaters, and does the signal change when you cycle the preamp power?
>
> Check your ins and outs on the preamp to make sure they didn't get
> reversed. Same thing for any diplexer you may be using as a high pass
> filter.
>
> More of the obvious...sure you are tracking correctly, and at the
> right time?
>
> I wouldn't suspect any of the cabling or adapters other than one being
> flat out broken. The preamp should easily overcome any shortcomings of
> the cable you've described.
>
> 73, Drew KO4MA
> ------------------------------------------------------------------------
>
>
> No virus found in this incoming message.
> Checked by AVG - www.avg.com
> Version: 8.5.426 / Virus Database: 270.14.87/2535 - Release Date: 11/29/09
19:31:00
>
>
------------------------------
Message: 14
Date: Sun, 29 Nov 2009 22:22:16 -0500
From: "Mike" <sar911@xxxxxxxxx.xxx>
Subject: [amsat-bb] IC-32A/Arrow antenna with duplexer
To: "'Amsat-Bb@xxxxx. Org'" <amsat-bb@xxxxx.xxx>
Message-ID: <000901ca716c$515349e0$f3f9dda0$@xxx>
Content-Type: text/plain; charset="us-ascii"
IC-32A/battery/desk charger/HM-54 speaker mike/antenna/manual/Arrow II
antenna with duplexer. $300.00 firm and includes shipping
------------------------------
Message: 15
Date: Sun, 29 Nov 2009 23:52:50 -0500
From: RFI-EMI-GUY <Rhyolite@xxxxxxxx.xxx>
Subject: [amsat-bb] Auto-Tune
To: amsat-bb@xxxxx.xxx
Message-ID: <4B134FA2.5070501@xxxxxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I have been having a debate with my son about the overuse of Auto-Tune
in music. Personally, I find it irritating. Then it occurred to me that
I had proposed on this BB a long time ago that it would be nifty to have
a DSP (Like Timewave DSP-599) that would correct for doppler. Has
anyone tried Auto-Tune to correct doppler on a linear transponder?
--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"?
"Use only Genuine Interocitor Parts" Tom Servo ;-P
------------------------------
Message: 16
Date: Mon, 30 Nov 2009 00:20:58 -0500
From: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Subject: [amsat-bb] Re: Auto-Tune
To: amsat-bb@xxxxx.xxx
Message-ID: <4B130FEA.13306.431BB00@xxxxxxxxxxx.xxxxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1
On 29 Nov 2009 at 23:52, RFI-EMI-GUY wrote:
Date sent: Sun, 29 Nov 2009 23:52:50 -0500
From: RFI-EMI-GUY <Rhyolite@xxxxxxxx.xxx>
Subject: [amsat-bb] Auto-Tune
To: amsat-bb@xxxxx.xxx
Send reply to: Rhyolite@xxxxxxxx.xxx
Organization: Central Scrutinizer
> I have been having a debate with my son about the overuse of Auto-Tune
> in music. Personally, I find it irritating. Then it occurred to me that
> I had proposed on this BB a long time ago that it would be nifty to have
> a DSP (Like Timewave DSP-599) that would correct for doppler. Has
> anyone tried Auto-Tune to correct doppler on a linear transponder?
>
> --
> Joe Leikhim K4SAT
> "The RFI-EMI-GUY"?
>
A variation used here. On my PCR 1000 i correct the doppler on my 2.4 GHZ
downconverter IF with the AFC frequency tuning. It is effective
but signal should be always present it loose track in the signal fades but
easily corrected manually. Never tested yet on a SSB or CW
signal only on FM.
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
DSTAR urcall VE2DWE
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 17
Date: Mon, 30 Nov 2009 00:08:59 -0800
From: "Greg D." <ko6th_greg@xxxxxxx.xxx>
Subject: [amsat-bb] Re: Auto-Tune
To: <amsat-bb@xxxxx.xxx>
Message-ID: <BLU133-W119500D1A2525909F93855A9970@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
I believe that automatic tuning of the downlink receiver will only work with
FM, as an output of the FM discriminator can be used to give an error
(difference) signal for tuning. I don't believe this is possible with an
arbitrary SSB signal. The only way SSB/CW can work is to have a known
signal to analyze, such as digital or a single CW communication channel.
The software used to decode AO-40 middle beacon, for example, was capable of
providing a tuning output, and I've seen CW and PSK sound card software do
some limited tracking as well. But a random (i.e. voice) SSB signal? Don't
think that's possible.
Greg KO6TH
> From: lucleblanc6@xxxxxxxxx.xx
> To: amsat-bb@xxxxx.xxx
> Date: Mon, 30 Nov 2009 00:20:58 -0500
> Subject: [amsat-bb] Re: Auto-Tune
>
> On 29 Nov 2009 at 23:52, RFI-EMI-GUY wrote:
>
> Date sent: Sun, 29 Nov 2009 23:52:50 -0500
> From: RFI-EMI-GUY <Rhyolite@xxxxxxxx.xxx>
> Subject: [amsat-bb] Auto-Tune
> To: amsat-bb@xxxxx.xxx
> Send reply to: Rhyolite@xxxxxxxx.xxx
> Organization: Central Scrutinizer
>
> > I have been having a debate with my son about the overuse of Auto-Tune
> > in music. Personally, I find it irritating. Then it occurred to me that
> > I had proposed on this BB a long time ago that it would be nifty to have
> > a DSP (Like Timewave DSP-599) that would correct for doppler. Has
> > anyone tried Auto-Tune to correct doppler on a linear transponder?
> >
> > --
> > Joe Leikhim K4SAT
> > "The RFI-EMI-GUY"?
> >
> A variation used here. On my PCR 1000 i correct the doppler on my 2.4 GHZ
downconverter IF with the AFC frequency tuning. It is effective
> but signal should be always present it loose track in the signal fades but
easily corrected manually. Never tested yet on a SSB or CW
> signal only on FM.
> "-"
>
>
> Luc Leblanc VE2DWE
> Skype VE2DWE
> www.qsl.net/ve2dwe
> DSTAR urcall VE2DWE
> WAC BASIC CW PHONE SATELLITE
>
>
>
> _______________________________________________
> 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
_________________________________________________________________
Bing brings you maps, menus, and reviews organized in one place.
http://www.bing.com/search?q=restaurants&form=MFESRP&publ=WLHMTAG&crea=TEXT_MF
ESRP_Local_MapsMenu_Resturants_1x1
------------------------------
_______________________________________________
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 4, Issue 632
****************************************
Read previous mail | Read next mail
| |
