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CX2SA > SATDIG 11.12.09 18:48l 1103 Lines 34790 Bytes #999 (0) @ WW
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Sent: 091211/1644Z @:CX2SA.LAV.URY.SA #:24227 [Minas] FBB7.00e $:AMSATBB4650
From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. SatPC32 rotor steering via COM1 and G6LVB interface (Jan Lind)
2. New Kenwood HT (Clint Bradford)
3. NZ5N on this weekend from Jamaica FK18 (Bill Dzurilla)
4. Re: G-5500 problem (i8cvs)
5. Re: G-5500 problem (Paul Baldock)
6. Re: G-5500 problem (Paul Baldock)
7. Re: New Kenwood HT (Bruce Robertson)
8. Re: G-5500 problem (i8cvs)
9. Loosing the north!!! (Luc Leblanc)
10. Re: Loosing the north!!! (Danny Casier)
11. AO-51 trasatlantic QSO possible now (Luc Leblanc)
12. Re: AO-51 trasatlantic QSO possible now (John Heath)
13. Re: G-5500 problem (Alan P. Biddle)
14. Re: Loosing the north!!! (Luc Leblanc)
15. Re: AO-51 trasatlantic QSO possible now (Luc Leblanc)
----------------------------------------------------------------------
Message: 1
Date: Thu, 10 Dec 2009 20:23:49 +0100
From: "Jan Lind" <janlind@xxxx.xx>
Subject: [amsat-bb] SatPC32 rotor steering via COM1 and G6LVB
interface
To: <amsat-bb@xxxxx.xxx>
Message-ID: <AF37F95156874E0490B66628CBFCE9A9@xxxxxxxxxxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hello SAT-friends.
Has anyone managed to run the rotor steering from SatPC32 via the normal
COM1 port.
Setup here: WinXP, SatPC32, G6LVB interface, G-5500 Yaesu rotor and IC-910H.
G6LVB interface programmed and calibrated via COM1 as instructed, all works
fine; buttons on G6LVB interface for rotor control works fine, so cabling
should be ok.
Starting up SatPC32, SDX starts as well, and Az/El is passed to SDX, as it
should, but nothing happens on the G-5500; the same result if Az/El is
manually input'ed via SDX.
On a SerialMonitor, all commands looks fine, and correct.
Closes down SatPC32 and starts a TerminalSimulator (Putty) on COM1; types in
a command like w100 45, and voila, the rotor acts as it should; command
syntax seen on the SerialMonitor matches the commands, sent from SatPC32.
But... there is one difference: RTS on the serial port is low when SatPC32
starts, but high when the TerminalSimulator (Putty) starts; I believe thats
the reason commands are not transferred to the rotor (reply >?)
I know in the end, that I have to control the rotor via the FTDI USB
interface (virtuel COM-port), but haven't had the time to build it yet, and
then CAT-control the IC-910H via the COM1 port; I have tested it, and it
works fine (with RTS 12V set in the program).
And what would the situation have been, if I only had 2 COM-ports, and no
available USB-port.
If my problem really is, that RTS is low, can I then solve my problem, just
by pulling-up the RTS pin, or should I just finish that FTDI USB interface,
and forget all about it.
Vy 73 de OZ5JR Jan
E-mail: oz5jr@xxxx.xx
------------------------------
Message: 2
Date: Thu, 10 Dec 2009 12:23:27 -0800
From: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Subject: [amsat-bb] New Kenwood HT
To: amsat-bb@xxxxx.xxx
Message-ID: <6D41DC0D-6B10-4BEE-9F10-7B5B193DF95F@xxxxxxxxx.xxx>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Kenwood USA has no idea exactly when their new HF/6M and new HT will
be available for sale in the US.
The new handheld (informally "replacing" the TH-D7AG) is expected to
be intro'd in 2010. It will have APRS / Kenwood Sky Command / TNC / DX
Packet Cluster / GPS.
Kenwood USA has no further information at this time - neither features
nor ETA.
SOURCE: Customer Service Manager of Kenwood USA
Clint
------------------------------
Message: 3
Date: Thu, 10 Dec 2009 12:26:59 -0800 (PST)
From: Bill Dzurilla <billdz.geo@xxxxx.xxx>
Subject: [amsat-bb] NZ5N on this weekend from Jamaica FK18
To: amsat-bb@xxxxx.xxx
Cc: fm-satellite@xxxxxxxxxxx.xxx
Message-ID: <139674.67276.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
In case anyone missed me last year, I'll again be taking by HT and Arrow
antenna to Jamaica this weekend. It's a business trip so I can't predict
when I'll be on, but arriving Friday afternoon and leaving Monday noon.
Please send s.a.s.e. if you work me and want a QSL, or use LOTW/eQSL.
73, Bill NZ5N
------------------------------
Message: 4
Date: Thu, 10 Dec 2009 22:31:53 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: G-5500 problem
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>, "Paul Baldock"
<pbaldock@xxxxxxx.xxx>
Message-ID: <001601ca79e0$3164b840$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Paul, KW7Y
I suppose that you measure:
Between A6 and A4 for CCW = 4.4 ohm
Between A6 and A5 for CW = 4.4 ohm
I suggest you to put an AC ammeter 5 Amps f.s. in series between the
common terminal A6 of the control box and the wire coming up to A6
in the motor.
In this condition the AC current running CW or CCW must be about
the same.
If the current increases when the motor stuks in CW position then there
is a mechanical problem inside the rotator.
If the current is low when the motor stucks in CW position probably the
capacitor C 35 losted capacity and if the current is zero probably the
limit switch SW-7 inside the rotator is defective.
Unfortunately if the AC capacitor C35 = 100 uF AC wich is connected
between A4 and A5 inside the rotator losted capacity you cannot measure
its capacity from the shack.
The motor is a brusheless AC asyncronous motor using the starting
capacitor C 35 to produce a 90? phase shift between both windings.
73" de
i8CVS Domenico
----- Original Message -----
From: "Paul Baldock" <pbaldock@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Sent: Thursday, December 10, 2009 3:22 AM
Subject: [amsat-bb] G-5500 problem
> I have a G-5500 that sometimes will not turn clock wise(CW) but will
> turn counter clockwise (CCW) OK. When it is working OK in both
> directions each winding (CW and CCW) measures about 4.4 Ohms in the
> shack. When it will not turn CW that winding measures about 2.2 ohms
> (The CCW winding still measures 4.4 ohms).
>
> The Controller is fine, so the problem is in the motor.
>
> Does this motor have brushes?
>
> Any thoughts on what the problem might be?
>
> Thanks
>
> - Paul KW7Y
>
> _______________________________________________
> 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: Thu, 10 Dec 2009 15:30:18 -0800
From: Paul Baldock <pbaldock@xxxxxxx.xxx>
Subject: [amsat-bb] Re: G-5500 problem
To: "i8cvs" <domenico.i8cvs@xxx.xx>, <amsat-bb@xxxxx.xxx>
Message-ID: <0KUG00AIAMMJV1C0@xxxxxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1; format=flowed
Thanks for your thoughts.
The current is about 2A when stuck or moving. (Same in both directions)
I can get it to move if I up the voltage a little
with a series transformer. Nominal voltage is
about 28V in the shack. By adding 10V it moves
fine. So temporarily I will add a series voltage
to "kick start" it, until the wx warms up and I can service the rotor.
Regards
- Paul KW7Y
At 01:31 PM 12/10/2009, you wrote:
>Hi Paul, KW7Y
>
>I suppose that you measure:
>
>Between A6 and A4 for CCW = 4.4 ohm
>Between A6 and A5 for CW = 4.4 ohm
>
>I suggest you to put an AC ammeter 5 Amps f.s. in series between the
>common terminal A6 of the control box and the wire coming up to A6
>in the motor.
>
>In this condition the AC current running CW or CCW must be about
>the same.
>
>If the current increases when the motor stuks in CW position then there
>is a mechanical problem inside the rotator.
>
>If the current is low when the motor stucks in CW position probably the
>capacitor C 35 losted capacity and if the current is zero probably the
>limit switch SW-7 inside the rotator is defective.
>
>Unfortunately if the AC capacitor C35 = 100 uF AC wich is connected
>between A4 and A5 inside the rotator losted capacity you cannot measure
>its capacity from the shack.
>
>The motor is a brusheless AC asyncronous motor using the starting
>capacitor C 35 to produce a 90? phase shift between both windings.
>
>73" de
>
>i8CVS Domenico
>
>----- Original Message -----
>From: "Paul Baldock" <pbaldock@xxxxxxx.xxx>
>To: <amsat-bb@xxxxx.xxx>
>Sent: Thursday, December 10, 2009 3:22 AM
>Subject: [amsat-bb] G-5500 problem
>
>
> > I have a G-5500 that sometimes will not turn clock wise(CW) but will
> > turn counter clockwise (CCW) OK. When it is working OK in both
> > directions each winding (CW and CCW) measures about 4.4 Ohms in the
> > shack. When it will not turn CW that winding measures about 2.2 ohms
> > (The CCW winding still measures 4.4 ohms).
> >
> > The Controller is fine, so the problem is in the motor.
> >
> > Does this motor have brushes?
> >
> > Any thoughts on what the problem might be?
> >
> > Thanks
> >
> > - Paul KW7Y
> >
> > _______________________________________________
> > 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: 6
Date: Thu, 10 Dec 2009 17:06:32 -0800
From: Paul Baldock <pbaldock@xxxxxxx.xxx>
Subject: [amsat-bb] Re: G-5500 problem
To: "i8cvs" <domenico.i8cvs@xxx.xx>, <amsat-bb@xxxxx.xxx>
Message-ID: <0KUG003PAR6G7690@xxxxxxxxx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1; format=flowed
I think I have confirmed that the problem is the
motor capacitor. I have connected a 47uF Bi-Polar
Cap across the motor connections in the shack,
which is effectively across the 100uF up at the
motor (unless a limit switch opens), and all
seems to be working in both directions now.
- Paul
At 03:30 PM 12/10/2009, you wrote:
>Thanks for your thoughts.
>
>The current is about 2A when stuck or moving. (Same in both directions)
>
>I can get it to move if I up the voltage a little
>with a series transformer. Nominal voltage is
>about 28V in the shack. By adding 10V it moves
>fine. So temporarily I will add a series voltage
>to "kick start" it, until the wx warms up and I can service the rotor.
>
>Regards
>
>- Paul KW7Y
>
>
>
>At 01:31 PM 12/10/2009, you wrote:
> >Hi Paul, KW7Y
> >
> >I suppose that you measure:
> >
> >Between A6 and A4 for CCW = 4.4 ohm
> >Between A6 and A5 for CW = 4.4 ohm
> >
> >I suggest you to put an AC ammeter 5 Amps f.s. in series between the
> >common terminal A6 of the control box and the wire coming up to A6
> >in the motor.
> >
> >In this condition the AC current running CW or CCW must be about
> >the same.
> >
> >If the current increases when the motor stuks in CW position then there
> >is a mechanical problem inside the rotator.
> >
> >If the current is low when the motor stucks in CW position probably the
> >capacitor C 35 losted capacity and if the current is zero probably the
> >limit switch SW-7 inside the rotator is defective.
> >
> >Unfortunately if the AC capacitor C35 = 100 uF AC wich is connected
> >between A4 and A5 inside the rotator losted capacity you cannot measure
> >its capacity from the shack.
> >
> >The motor is a brusheless AC asyncronous motor using the starting
> >capacitor C 35 to produce a 90? phase shift between both windings.
> >
> >73" de
> >
> >i8CVS Domenico
> >
> >----- Original Message -----
> >From: "Paul Baldock" <pbaldock@xxxxxxx.xxx>
> >To: <amsat-bb@xxxxx.xxx>
> >Sent: Thursday, December 10, 2009 3:22 AM
> >Subject: [amsat-bb] G-5500 problem
> >
> >
> > > I have a G-5500 that sometimes will not turn clock wise(CW) but will
> > > turn counter clockwise (CCW) OK. When it is working OK in both
> > > directions each winding (CW and CCW) measures about 4.4 Ohms in the
> > > shack. When it will not turn CW that winding measures about 2.2 ohms
> > > (The CCW winding still measures 4.4 ohms).
> > >
> > > The Controller is fine, so the problem is in the motor.
> > >
> > > Does this motor have brushes?
> > >
> > > Any thoughts on what the problem might be?
> > >
> > > Thanks
> > >
> > > - Paul KW7Y
> > >
> > > _______________________________________________
> > > 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
>
>
>_______________________________________________
>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: 7
Date: Thu, 10 Dec 2009 21:27:52 -0400
From: Bruce Robertson <ve9qrp@xxxxx.xxx>
Subject: [amsat-bb] Re: New Kenwood HT
To: Clint Bradford <clintbrad4d@xxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Message-ID:
<49657a760912101727s52dd2006w31036579e25407f0@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On a related topic, does anyone know of other HTs whose frequency can
be controlled through the serial port like the TH-D7A? How about
mobile units, especially dual frequency ones? I'm working on that
micro-controller full doppler tuning and would like to know what
viable targets there are outside the FT-817.
On Thu, Dec 10, 2009 at 4:23 PM, Clint Bradford
<clintbrad4d@xxxxxxxxx.xxx> wrote:
> Kenwood USA has no idea exactly when their new HF/6M and new HT will
> be available for sale in the US.
>
> The new handheld (informally "replacing" the TH-D7AG) is expected to
> be intro'd in 2010. It will have APRS / Kenwood Sky Command / TNC / DX
> Packet Cluster / GPS.
>
> Kenwood USA has no further information at this time - neither features
> nor ETA.
>
> SOURCE: Customer Service Manager of Kenwood USA
>
> Clint
> _______________________________________________
> 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
>
--
http://ve9qrp.blogspot.com
------------------------------
Message: 8
Date: Fri, 11 Dec 2009 02:51:29 +0100
From: "i8cvs" <domenico.i8cvs@xxx.xx>
Subject: [amsat-bb] Re: G-5500 problem
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>, "Paul Baldock"
<pbaldock@xxxxxxx.xxx>
Message-ID: <003001ca7a04$753efac0$0201a8c0@xxx.xx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Paul, KW7Y
To put a critical component like an electrolitic Bi-Polar capacitor
inside the G-5500 rotator is a very bad idea from Yaesu because if
the capacitor shorts out then it is necessary to dissable the antennas.
You are fortunate enought that your capacitor only looses capacity.
Much better is the old KR-500 with it's capacitor inside the control
box.
By the way.....problem solved !
73" de
i8CVS Domenico
----- Original Message -----
From: "Paul Baldock" <pbaldock@xxxxxxx.xxx>
To: "i8cvs" <domenico.i8cvs@xxx.xx>; <amsat-bb@xxxxx.xxx>
Sent: Friday, December 11, 2009 2:06 AM
Subject: Re: [amsat-bb] Re: G-5500 problem
I think I have confirmed that the problem is the
motor capacitor. I have connected a 47uF Bi-Polar
Cap across the motor connections in the shack,
which is effectively across the 100uF up at the
motor (unless a limit switch opens), and all
seems to be working in both directions now.
- Paul
At 03:30 PM 12/10/2009, you wrote:
>Thanks for your thoughts.
>
>The current is about 2A when stuck or moving. (Same in both directions)
>
>I can get it to move if I up the voltage a little
>with a series transformer. Nominal voltage is
>about 28V in the shack. By adding 10V it moves
>fine. So temporarily I will add a series voltage
>to "kick start" it, until the wx warms up and I can service the rotor.
>
>Regards
>
>- Paul KW7Y
>
>
>
>At 01:31 PM 12/10/2009, you wrote:
> >Hi Paul, KW7Y
> >
> >I suppose that you measure:
> >
> >Between A6 and A4 for CCW = 4.4 ohm
> >Between A6 and A5 for CW = 4.4 ohm
> >
> >I suggest you to put an AC ammeter 5 Amps f.s. in series between the
> >common terminal A6 of the control box and the wire coming up to A6
> >in the motor.
> >
> >In this condition the AC current running CW or CCW must be about
> >the same.
> >
> >If the current increases when the motor stuks in CW position then there
> >is a mechanical problem inside the rotator.
> >
> >If the current is low when the motor stucks in CW position probably the
> >capacitor C 35 losted capacity and if the current is zero probably the
> >limit switch SW-7 inside the rotator is defective.
> >
> >Unfortunately if the AC capacitor C35 = 100 uF AC wich is connected
> >between A4 and A5 inside the rotator losted capacity you cannot measure
> >its capacity from the shack.
> >
> >The motor is a brusheless AC asyncronous motor using the starting
> >capacitor C 35 to produce a 90? phase shift between both windings.
> >
> >73" de
> >
> >i8CVS Domenico
> >
> >----- Original Message -----
> >From: "Paul Baldock" <pbaldock@xxxxxxx.xxx>
> >To: <amsat-bb@xxxxx.xxx>
> >Sent: Thursday, December 10, 2009 3:22 AM
> >Subject: [amsat-bb] G-5500 problem
> >
> >
> > > I have a G-5500 that sometimes will not turn clock wise(CW) but will
> > > turn counter clockwise (CCW) OK. When it is working OK in both
> > > directions each winding (CW and CCW) measures about 4.4 Ohms in the
> > > shack. When it will not turn CW that winding measures about 2.2 ohms
> > > (The CCW winding still measures 4.4 ohms).
> > >
> > > The Controller is fine, so the problem is in the motor.
> > >
> > > Does this motor have brushes?
> > >
> > > Any thoughts on what the problem might be?
> > >
> > > Thanks
> > >
> > > - Paul KW7Y
> > >
> > > _______________________________________________
> > > 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
>
>
>_______________________________________________
>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: 9
Date: Thu, 10 Dec 2009 16:32:42 -0500
From: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Subject: [amsat-bb] Loosing the north!!!
To: amsat-bb@xxxxx.xxx
Cc: eu-amsat@xxxxxxxxxxx.xxx
Message-ID: <4B2122AA.21966.109405B@xxxxxxxxxxx.xxxxxxxxx.xx>
Content-Type: text/plain; charset=US-ASCII
Again my Alfa Spid AZ rotor act again yesterday evening it loose his north
setting as it is electronicly set with the control box. Very
easy to reset but in the middle of a snow storm (25cm) i was unable to find
something to point the beam physically to the north.
At the same time there was an AO-51 pass i adjust the rotor to an estimated
north and i follow the whole pass manually writing down the
real calculated azimuth and the one i got from a maximum signal swinging the
rotor back an forth.
I make another pass doing the same operation to fined tuned my pointing and
today on the 1549 EDT pass i was able to get the satelllite at
1 degrees AOS ans LOS!! signal was S7 most of the time and reaching S9 near
TCA?
I don't know if AO-51 is still pointing towards the southern hemisphere but
i notice only one deep fade and signal was much better than the
first attitude change days and i think he never was so strong?
I'm guessing my "scientific" previous north pointing was bad or my UHF beam
is shooting not towards he point? I'm always using automatic AZ
tracking could be i was shooting aside of the target for a while...
Just try this on a pass could be you will be astonish too?
If AO-51 was returned back to his normal attitude i will have to reavaluate
all of what i wrote above.
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
DSTAR urcall VE2DWE
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 10
Date: Fri, 11 Dec 2009 08:37:10 +0100
From: "Danny Casier" <Danny.casier@xxxxxx.xx>
Subject: [amsat-bb] Re: Loosing the north!!!
To: <amsat-bb@xxxxx.xxx>
Cc: eu-amsat@xxxxxxxxxxx.xxx
Message-ID: <9992CDA6C8A547C88B71212130D7992B@xxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"
It depends what antenna system you have. If you use high gain antenna
system, how can you see the differens?
Best way is comparing with a no directional antenna before and after the
clip over of the sat. But that's to late for that now. Perhaps we can start
start to messure and after next clip over we can start al over again so we
can compare the data. Messurements must be done with several passes and same
equipment.
73
Dan ON5UE
-----Oorspronkelijk bericht-----
Van: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx Namens
Luc Leblanc
Verzonden: donderdag 10 december 2009 22:33
Aan: amsat-bb@xxxxx.xxx
CC: eu-amsat@xxxxxxxxxxx.xxx
Onderwerp: [amsat-bb] Loosing the north!!!
Again my Alfa Spid AZ rotor act again yesterday evening it loose his north
setting as it is electronicly set with the control box. Very
easy to reset but in the middle of a snow storm (25cm) i was unable to find
something to point the beam physically to the north.
At the same time there was an AO-51 pass i adjust the rotor to an estimated
north and i follow the whole pass manually writing down the
real calculated azimuth and the one i got from a maximum signal swinging the
rotor back an forth.
I make another pass doing the same operation to fined tuned my pointing and
today on the 1549 EDT pass i was able to get the satelllite at
1 degrees AOS ans LOS!! signal was S7 most of the time and reaching S9 near
TCA?
I don't know if AO-51 is still pointing towards the southern hemisphere but
i notice only one deep fade and signal was much better than the
first attitude change days and i think he never was so strong?
I'm guessing my "scientific" previous north pointing was bad or my UHF beam
is shooting not towards he point? I'm always using automatic AZ
tracking could be i was shooting aside of the target for a while...
Just try this on a pass could be you will be astonish too?
If AO-51 was returned back to his normal attitude i will have to reavaluate
all of what i wrote above.
"-"
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
No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 9.0.709 / Virus Database: 270.14.102/2556 - Release Date: 12/10/09
08:36:00
------------------------------
Message: 11
Date: Fri, 11 Dec 2009 04:36:21 -0500
From: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Subject: [amsat-bb] AO-51 trasatlantic QSO possible now
To: amsat-bb@xxxxx.xxx
Cc: eu-amsat@xxxxxxxxxxx.xxx
Message-ID: <4B21CC45.11049.527EA7@xxxxxxxxxxx.xxxxxxxxx.xx>
Content-Type: text/plain; charset=US-ASCII
Each 3 days AO-51 footprint reach eastern NA and Europe. This "very early"
morning pass here at 0855 UTC put in range of the east of North
America (me...at least): Northern Europe and most of Scandinavia. The next
similar pass will be on Monday December 14 at 0837 UTC. This
pass will cover from a line starting at the South of Spain to the north
border of Italy covering near the whole western European continent
UK as well Scandinavia will also be in range.
Signal on this morning low pass about 7 deg here was Q5 S6 to S7. If there
is any takers i can set my alarm clock to be QRV next Monday
morning but i know it is a working day could be not the best pass to have a
lot of stations but it is not a too bad thing considering the
limitation of a one channel sat.
Best time to have a look over the Atlantic from FN36KA.
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
DSTAR urcall VE2DWE
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 12
Date: Fri, 11 Dec 2009 11:05:18 +0000 (GMT)
From: John Heath <g7hia@xxxxxxxxxx.xxx>
Subject: [amsat-bb] Re: AO-51 trasatlantic QSO possible now
To: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Cc: amsat-bb@xxxxx.xxx
Message-ID: <275560.73801.qm@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Hi Luc,
No satellite capability at present but I can confirm for anyone on the BB
who hasn't tried it, ?transatlantic contacts are perfectly possible via
AO-51.? With most of Europe out of the footprint you will probably have the
satellite to yourselves.
Another great time to try, when the passes are sutiable is around midnight
UTC into western USA and Canada. 5W is plenty. Just Nortyh amarica,
Scandinavia and Scotland in the footprint.
73 John G7HIA
________________________________
From: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
To: amsat-bb@xxxxx.xxx
Cc: eu-amsat@xxxxxxxxxxx.xxx
Sent: Friday, 11 December, 2009 9:36:21
Subject: [amsat-bb] AO-51 trasatlantic QSO possible now
Each 3 days AO-51 footprint reach eastern NA and Europe. This "very early"
morning pass here at 0855 UTC put in range of the east of North
America (me...at least): Northern Europe and most of Scandinavia. The next
similar pass will be on Monday December 14 at 0837 UTC. This
pass will cover from a line starting at the South of Spain to the north
border of Italy covering near the whole western European continent?
UK as well Scandinavia will also be in range.
Signal on this morning low pass about 7 deg here was Q5 S6 to S7. If there
is any takers i can set my alarm clock to be QRV next Monday
morning but i know it is a working day could be not the best pass to have a
lot of stations but it is not a too bad thing considering the
limitation of a one channel sat.
Best time to have a look over the Atlantic from FN36KA.
"-"
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.
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------------------------------
Message: 13
Date: Fri, 11 Dec 2009 05:30:48 -0600
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: G-5500 problem
To: "'i8cvs'" <domenico.i8cvs@xxx.xx>, "'AMSAT-BB'"
<amsat-bb@xxxxx.xxx>, "'Paul Baldock'" <pbaldock@xxxxxxx.xxx>
Message-ID: <2D41626F9B6B4EA78C72C8B1BCB48948@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi,
Another reason not to put the capacitor in the rotator is that it is exposed
to large temperature swings, which will definitely shorting its life.
Alan
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of i8cvs
Sent: 10 December, 2009 19:51
To: AMSAT-BB; Paul Baldock
Subject: [amsat-bb] Re: G-5500 problem
Hi Paul, KW7Y
To put a critical component like an electrolitic Bi-Polar capacitor
inside the G-5500 rotator is a very bad idea from Yaesu because if
the capacitor shorts out then it is necessary to dissable the antennas.
You are fortunate enought that your capacitor only looses capacity.
Much better is the old KR-500 with it's capacitor inside the control
box.
By the way.....problem solved !
73" de
i8CVS Domenico
----- Original Message -----
From: "Paul Baldock" <pbaldock@xxxxxxx.xxx>
To: "i8cvs" <domenico.i8cvs@xxx.xx>; <amsat-bb@xxxxx.xxx>
Sent: Friday, December 11, 2009 2:06 AM
Subject: Re: [amsat-bb] Re: G-5500 problem
I think I have confirmed that the problem is the
motor capacitor. I have connected a 47uF Bi-Polar
Cap across the motor connections in the shack,
which is effectively across the 100uF up at the
motor (unless a limit switch opens), and all
seems to be working in both directions now.
- Paul
At 03:30 PM 12/10/2009, you wrote:
>Thanks for your thoughts.
>
>The current is about 2A when stuck or moving. (Same in both directions)
>
>I can get it to move if I up the voltage a little
>with a series transformer. Nominal voltage is
>about 28V in the shack. By adding 10V it moves
>fine. So temporarily I will add a series voltage
>to "kick start" it, until the wx warms up and I can service the rotor.
>
>Regards
>
>- Paul KW7Y
>
>
>
>At 01:31 PM 12/10/2009, you wrote:
> >Hi Paul, KW7Y
> >
> >I suppose that you measure:
> >
> >Between A6 and A4 for CCW = 4.4 ohm
> >Between A6 and A5 for CW = 4.4 ohm
> >
> >I suggest you to put an AC ammeter 5 Amps f.s. in series between the
> >common terminal A6 of the control box and the wire coming up to A6
> >in the motor.
> >
> >In this condition the AC current running CW or CCW must be about
> >the same.
> >
> >If the current increases when the motor stuks in CW position then there
> >is a mechanical problem inside the rotator.
> >
> >If the current is low when the motor stucks in CW position probably the
> >capacitor C 35 losted capacity and if the current is zero probably the
> >limit switch SW-7 inside the rotator is defective.
> >
> >Unfortunately if the AC capacitor C35 = 100 uF AC wich is connected
> >between A4 and A5 inside the rotator losted capacity you cannot measure
> >its capacity from the shack.
> >
> >The motor is a brusheless AC asyncronous motor using the starting
> >capacitor C 35 to produce a 90? phase shift between both windings.
> >
> >73" de
> >
> >i8CVS Domenico
> >
> >----- Original Message -----
> >From: "Paul Baldock" <pbaldock@xxxxxxx.xxx>
> >To: <amsat-bb@xxxxx.xxx>
> >Sent: Thursday, December 10, 2009 3:22 AM
> >Subject: [amsat-bb] G-5500 problem
> >
> >
> > > I have a G-5500 that sometimes will not turn clock wise(CW) but will
> > > turn counter clockwise (CCW) OK. When it is working OK in both
> > > directions each winding (CW and CCW) measures about 4.4 Ohms in the
> > > shack. When it will not turn CW that winding measures about 2.2 ohms
> > > (The CCW winding still measures 4.4 ohms).
> > >
> > > The Controller is fine, so the problem is in the motor.
> > >
> > > Does this motor have brushes?
> > >
> > > Any thoughts on what the problem might be?
> > >
> > > Thanks
> > >
> > > - Paul KW7Y
> > >
> > > _______________________________________________
> > > 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
>
>
>_______________________________________________
>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
_______________________________________________
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: 14
Date: Fri, 11 Dec 2009 09:52:29 -0500
From: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Subject: [amsat-bb] Re: Loosing the north!!!
To: amsat-bb@xxxxx.xxx
Message-ID: <4B22165D.4221.173EC28@xxxxxxxxxxx.xxxxxxxxx.xx>
Content-Type: text/plain; charset=US-ASCII
On 11 Dec 2009 at 8:37, Danny Casier wrote:
Date sent: Fri, 11 Dec 2009 08:37:10 +0100
From: Danny Casier <Danny.casier@xxxxxx.xx>
Subject: [amsat-bb] Re: Loosing the north!!!
To: amsat-bb@xxxxx.xxx
Copies to: eu-amsat@xxxxxxxxxxx.xxx
> It depends what antenna system you have. If you use high gain antenna
> system, how can you see the differens?
> Best way is comparing with a no directional antenna before and after the
> clip over of the sat. But that's to late for that now. Perhaps we can start
> start to messure and after next clip over we can start al over again so we
> can compare the data. Messurements must be done with several passes and same
> equipment.
>
> 73
> Dan ON5UE
>
I have 24 elements UHF linear yagi and after the switch i got a lot of small
fades with a huge one. When i realign correctly the antenna
all those small fades disappear and i got only one small one per pass. I
agree it's not the best way to test it but my main concern was my
correct alignment to the north and i can confirm it was effective as i am
able now to hear many satellites from 1 degrees up to half a
degree at LOS.
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
DSTAR urcall VE2DWE
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 15
Date: Fri, 11 Dec 2009 10:22:12 -0500
From: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Subject: [amsat-bb] Re: AO-51 trasatlantic QSO possible now
To: amsat-bb@xxxxx.xxx
Message-ID: <4B221D54.12350.18F2304@xxxxxxxxxxx.xxxxxxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-1
On 11 Dec 2009 at 11:05, John Heath wrote:
Date sent: Fri, 11 Dec 2009 11:05:18 +0000 (GMT)
From: John Heath <g7hia@xxxxxxxxxx.xxx>
Subject: Re: [amsat-bb] AO-51 trasatlantic QSO possible now
To: Luc Leblanc <lucleblanc6@xxxxxxxxx.xx>
Copies to: amsat-bb@xxxxx.xxx
> Hi Luc,
>
> No satellite capability at present but I can confirm for anyone on the BB
who hasn't tried it, ?transatlantic contacts are perfectly possible via
AO-51.? With most of Europe out of the footprint you will probably have the
satellite to yourselves.
>
> Another great time to try, when the passes are sutiable is around midnight
UTC into western USA and Canada. 5W is plenty. Just Nortyh amarica,
Scandinavia and Scotland in the footprint.
>
> 73 John G7HIA
>
>
>
Thank's John i will check it and you're right this morning 0355EDT (0855UTC)
i was alone on the satellite over the Atlantic At a time in
the pass the footprint touch Europe Greenland Africa and the Caribbean
Islands.
There is also other pass but they are too far east from FN36 to be workable
but the Canadian maritime provinces especially Newfoundland is
often available on many pass but i never hear a station from there on
satellite.
"-"
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 member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 4, Issue 650
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