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CX2SA > SATDIG 04.08.12 21:03l 623 Lines 20961 Bytes #999 (0) @ WW
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Subj: AMSAT-BB-digest V7 245
Path: IZ3LSV<IK2XDE<ON4HU<CX2SA
Sent: 120804/1902Z @:CX2SA.SAL.URY.SA #:64409 [Salto] FBB7.00e $:AMSATBB7245
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. EM46 operation! (K4FEG)
2. Active Birds (kp hpjr)
3. Re: Yaesu 5500 rotor question (i8cvs)
4. Re: Active Birds (Paul Delaney - K6HR)
5. Re: Active Birds (Andrew Glasbrenner)
6. Re: Active Birds (kp hpjr)
7. Portable EM46 (K4FEG)
8. Re: Yaesu 5500 rotor question (David Palmer KB5WIA)
9. US Virgin Islands Satellite Operator (Wyatt Dirks)
10. Re: US Virgin Islands Satellite Operator (Michael Bales)
11. LA4FPA (Wyatt Dirks)
12. Antenna Polarization Technical Question (Thomas Doyle)
13. Antenna Polarization Technical Question (andrew abken)
14. Re: US Virgin Islands Satellite Operator (Greg D)
----------------------------------------------------------------------
Message: 1
Date: Fri, 03 Aug 2012 14:02:17 -0500
From: K4FEG <K4FEG@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] EM46 operation!
Message-ID: <501C2039.5040703@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Rickey, WA4NVM is operating portable from EM46, he asked if I would post
up for him the following information:
If you need confirmation for the grid square EM46, please send WA4NVM an
email with the contact details, No SASE is necessary. Rick said he would
be happy to confirm the satellite contacts.
If you didn't see his previous post, he is operating FM satellites only
this trip. He will be in EM46 for tonight and some of the weekend.
73 all!
RAT de WA4NVM/p EM46
c/o K4FEG
------------------------------
Message: 2
Date: Fri, 3 Aug 2012 19:09:51 -0500
From: kp hpjr <inservice2him@xxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Active Birds
Message-ID: <BAY148-W62BF18851E05350AB19A8EBC90@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
What birds are currently available to use?
And what modes?
Thanks
Kirk, n0kk
------------------------------
Message: 3
Date: Sat, 4 Aug 2012 03:06:04 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: <kc5qbc@xxxxxx.xxx>
Cc: Amsat Buleitin Board <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Yaesu 5500 rotor question
Message-ID: <000001cd71dd$d2b809c0$0301a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Floyd, KC5QBC
With the upper assembly separated from the lover part of the rotor
rotate the azimuth motor until the position of the slider of the 500
ohm potentiometer comes mid way i.e. 250 + 250 ohm i.e. until it
will show the same voltage of about 3 volt betwen terminals 1 and
2 and terminals 2 and 3
Terminal 2 is the slider of the potentiometer i.e. is the cursor.
Now mechanically mount again the upper part of the motor hood
midway betwen both limit switches.
It's all you have to do to get again the calibration between the
potentiometer and the upper part of the assembly.
73" de
i8CVS Domenico
----- Original Message -----
From: "Floyd Rodgers" <kc5qbc@xxxxxx.xxx>
Cc: "Amsat Buleitin Board" <amsat-bb@xxxxx.xxx>
Sent: Thursday, August 02, 2012 3:10 AM
Subject: [amsat-bb] Yaesu 5500 rotor question
> I had a 5500 azmith rotator lockup over winter. I finally had time to
> take it down and find the problem. Now a different problem. I forgot to
> mark the housing position before separating the upper/lower azmith
> assemblies. I think I know where it was pointed, but how can I tell
> where it should be aligned? Is this really a non issue?
> _______________________________________________
> 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: 4
Date: Fri, 03 Aug 2012 20:43:36 -0700
From: "Paul Delaney - K6HR" <paul.hamradio@xxxxxxx.xxx>
To: "'kp hpjr'" <inservice2him@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Active Birds
Message-ID: <170277C2889D4E80862C759C273C7E9D@xxxxxx>
Content-Type: text/plain; charset=US-ASCII
http://www.amsat.org/amsat-new/satellites/status.php
Paul Delaney - K6HR
paul.hamradio@xxxxxxx.xxx
http://k6hr.dyndns.org:8080
> -----Original Message-----
> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> Behalf Of kp hpjr
> Sent: Friday, August 03, 2012 17:10
> To: amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Active Birds
>
>
> What birds are currently available to use?
> And what modes?
> Thanks
> Kirk, n0kk
>
> _______________________________________________
> 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: Sat, 4 Aug 2012 00:08:19 -0400 (GMT-04:00)
From: Andrew Glasbrenner <glasbrenner@xxxxxxxxxx.xxx>
To: Paul Delaney - K6HR <paul.hamradio@xxxxxxx.xxx>, "'kp hpjr'"
<inservice2him@xxxxxxx.xxx>, amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Active Birds
Message-ID:
<24440095.1344053299885.JavaMail.root@xxxxxxxxxxxxxx.xxx.xx.xxxxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
If you want to make two-way QSOs, look at AO-7, FO-29, VO-52, SO-50, AO-27,
and the ISS
73, Drew KO4MA
-----Original Message-----
>From: Paul Delaney - K6HR <paul.hamradio@xxxxxxx.xxx>
>Sent: Aug 3, 2012 11:43 PM
>To: 'kp hpjr' <inservice2him@xxxxxxx.xxx>, amsat-bb@xxxxx.xxx
>Subject: [amsat-bb] Re: Active Birds
>
>
>
>http://www.amsat.org/amsat-new/satellites/status.php
>
>Paul Delaney - K6HR
>paul.hamradio@xxxxxxx.xxx
>http://k6hr.dyndns.org:8080
>
>> -----Original Message-----
>> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
>> Behalf Of kp hpjr
>> Sent: Friday, August 03, 2012 17:10
>> To: amsat-bb@xxxxx.xxx
>> Subject: [amsat-bb] Active Birds
>>
>>
>> What birds are currently available to use?
>> And what modes?
>> Thanks
>> Kirk, n0kk
>>
>> _______________________________________________
>> 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: 6
Date: Fri, 3 Aug 2012 23:48:54 -0500
From: kp hpjr <inservice2him@xxxxxxx.xxx>
To: <glasbrenner@xxxxxxxxxx.xxx>, <paul.hamradio@xxxxxxx.xxx>,
"amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Active Birds
Message-ID: <BAY148-W8ED696CC6E46A94B29B76EBC90@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Thanks...
CU on the birds.
> Date: Sat, 4 Aug 2012 00:08:19 -0400
> From: glasbrenner@xxxxxxxxxx.xxx
> To: paul.hamradio@xxxxxxx.xxxx inservice2him@xxxxxxx.xxxx amsat-bb@xxxxx.xxx
> Subject: [amsat-bb] Re: Active Birds
>
> If you want to make two-way QSOs, look at AO-7, FO-29, VO-52, SO-50,
AO-27, and the ISS
>
> 73, Drew KO4MA
>
>
> -----Original Message-----
> >From: Paul Delaney - K6HR <paul.hamradio@xxxxxxx.xxx>
> >Sent: Aug 3, 2012 11:43 PM
> >To: 'kp hpjr' <inservice2him@xxxxxxx.xxx>, amsat-bb@xxxxx.xxx
> >Subject: [amsat-bb] Re: Active Birds
> >
> >
> >
> >http://www.amsat.org/amsat-new/satellites/status.php
> >
> >Paul Delaney - K6HR
> >paul.hamradio@xxxxxxx.xxx
> >http://k6hr.dyndns.org:8080
> >
> >> -----Original Message-----
> >> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
> >> Behalf Of kp hpjr
> >> Sent: Friday, August 03, 2012 17:10
> >> To: amsat-bb@xxxxx.xxx
> >> Subject: [amsat-bb] Active Birds
> >>
> >>
> >> What birds are currently available to use?
> >> And what modes?
> >> Thanks
> >> Kirk, n0kk
> >>
> >> _______________________________________________
> >> 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: 7
Date: Sat, 04 Aug 2012 00:18:00 -0500
From: K4FEG <K4FEG@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Portable EM46
Message-ID: <501CB088.3060004@xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Wa4NVM can be reached at wa4nvm@xxxxx.xxx while he is in EM46. Be sure
and drop him an email if you need EM46 confirmed.
73 everyone!
Frank; K4FEG, D.W.B. of EM55
------------------------------
Message: 8
Date: Fri, 3 Aug 2012 22:23:10 -0700
From: David Palmer KB5WIA <kb5wia@xxxxx.xxx>
To: i8cvs <domenico.i8cvs@xxx.xx>
Cc: Amsat Buleitin Board <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Yaesu 5500 rotor question
Message-ID:
<CAO-vtPPC3p-oB5LQN1eOjiKbo5SfuDbuz87dKE76Jog2Py1kPQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi Floyd,
Domenico's advice is quite good. I also wrote a section on aligning a
g5500 az rotator from scratch, its at the bottom of this post:
http://kb5wia.blogspot.com/2012/03/az-el-antenna-system-new-70cm-yagi-and.html
73 de Dave KB5WIA
On Aug 3, 2012 6:18 PM, "i8cvs" <domenico.i8cvs@xxx.xx> wrote:
> Hi Floyd, KC5QBC
>
> With the upper assembly separated from the lover part of the rotor
> rotate the azimuth motor until the position of the slider of the 500
> ohm potentiometer comes mid way i.e. 250 + 250 ohm i.e. until it
> will show the same voltage of about 3 volt betwen terminals 1 and
> 2 and terminals 2 and 3
>
> Terminal 2 is the slider of the potentiometer i.e. is the cursor.
>
> Now mechanically mount again the upper part of the motor hood
> midway betwen both limit switches.
>
> It's all you have to do to get again the calibration between the
> potentiometer and the upper part of the assembly.
>
> 73" de
>
> i8CVS Domenico
>
> ----- Original Message -----
> From: "Floyd Rodgers" <kc5qbc@xxxxxx.xxx>
> Cc: "Amsat Buleitin Board" <amsat-bb@xxxxx.xxx>
> Sent: Thursday, August 02, 2012 3:10 AM
> Subject: [amsat-bb] Yaesu 5500 rotor question
>
>
> > I had a 5500 azmith rotator lockup over winter. I finally had time to
> > take it down and find the problem. Now a different problem. I forgot to
> > mark the housing position before separating the upper/lower azmith
> > assemblies. I think I know where it was pointed, but how can I tell
> > where it should be aligned? Is this really a non issue?
> > _______________________________________________
> > 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: Sat, 4 Aug 2012 01:58:02 -0500
From: Wyatt Dirks <wyattdirks@xxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] US Virgin Islands Satellite Operator
Message-ID: <BAY151-W418BBFF98B639AB0A684EECDC90@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Fellow Satellite Operators,
On the 2nd I was glad to make contact with KP2CT on FO-29 for his first
satellite contact and my first contact from the US Virgin Islands. We have
been talking for about a month now and on our second attempt we made it. For
equipment he has a Icom 706 and an arrow antenna. He is manually tuning for
Doppler and still getting the hang of it. I know some other stations
reported hearing him on the 1st of August on our first attempt for contact.
He is going to only be on the SSB satellites for now and probably only FO-29
due to the ease of working semi duplex on mode J vs mode B. Though we might
try on VO52 at some point. He is still picking up on things that make it
easier and need to trouble shoot a few problems we found during our first QSO!
He will try to be QRV on fo29 during the next few week ends and possibly
during the week depending on his free time due to his unpredictable work
schedule. He also asked that people not try to contact him for skeds. If he
knows he can make a Certain pass or passes I will try to make an effort to
post to the BB.
Good Dx!
73 Wyatt
AC0RA
------------------------------
Message: 10
Date: Sat, 4 Aug 2012 05:35:27 -0400
From: Michael Bales <mikebales@xxxxxxxx.xxx>
To: <wyattdirks@xxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: US Virgin Islands Satellite Operator
Message-ID: <BAY152-W64794E0B897A07680D4873B2C90@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi all- I'm relatively new to sat operations/ but not ham radio(novice in
1987 then general in 1996), and noticed this message. I've been researching
alot and now have suitable equipment for working birds. How would I go
about finding someone(s) to schedule a few contacts with, as opposed to
calling cq to no-one inparticular? Any info/help is greatly appreciated...
73 - Mike - k8mcb
> From: wyattdirks@xxx.xxx
> To: amsat-bb@xxxxx.xxx
> Date: Sat, 4 Aug 2012 01:58:02 -0500
> Subject: [amsat-bb] US Virgin Islands Satellite Operator
>
>
> Fellow Satellite Operators,
>
> On the 2nd I was glad to make contact with KP2CT on FO-29 for his first
satellite contact and my first contact from the US Virgin Islands. We have
been talking for about a month now and on our second attempt we made it. For
equipment he has a Icom 706 and an arrow antenna. He is manually tuning for
Doppler and still getting the hang of it. I know some other stations
reported hearing him on the 1st of August on our first attempt for contact.
>
> He is going to only be on the SSB satellites for now and probably only
FO-29 due to the ease of working semi duplex on mode J vs mode B. Though we
might try on VO52 at some point. He is still picking up on things that make
it easier and need to trouble shoot a few problems we found during our first
QSO!
>
> He will try to be QRV on fo29 during the next few week ends and possibly
during the week depending on his free time due to his unpredictable work
schedule. He also asked that people not try to contact him for skeds. If he
knows he can make a Certain pass or passes I will try to make an effort to
post to the BB.
>
> Good Dx!
>
> 73 Wyatt
> AC0RA
>
>
>
>
>
> _______________________________________________
> 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: 11
Date: Sat, 4 Aug 2012 06:38:52 -0500
From: Wyatt Dirks <wyattdirks@xxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] LA4FPA
Message-ID: <BAY151-W417887DD985FE0545663D7CDC90@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Good morning
LA4FPA, Ering has asked me to post that he will be qrv on fo-29 and ao-27
this weekend from Vigra Island which is in JP32 and IOTA EU-056.
Good DX!
73 Wyatt
AC0RA
------------------------------
Message: 12
Date: Sat, 4 Aug 2012 09:46:40 -0500
From: Thomas Doyle <tomdoyle1948@xxxxx.xxx>
To: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] Antenna Polarization Technical Question
Message-ID:
<CAHnRQRLxd4CQZzrdPD+nVz9C3WE0E6Own9zAySfV61BqrYm_Ew@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
I had a actual qso on FO-29 the other day and during the contact
circular polarization switching was discussed.
The station I was talking with described a very large change in
received signal strength when switching
between LHCP and RHCP. I have heard other people mention this and I
recall some change when using
AO-10 with my switchable KLM's back in the good old days.
I have been trying to figure out why there would be such a big change.
Here is a collection of theories/questions.
I would appreciate comments on any or all of them. This is a bit
complex so a direct reply is probably best.
- In a perfect world if the satellite antenna is linearly polarized
LH-RH switching would not make any difference.
- In a real world it is unlikely that the ground station receive
antenna is truly circular. It is somewhat elliptical.
Question: if the receive antenna has an elliptical pattern does the
angle of the major axis change when
switching LH - RH.
This is a complex question related to the nature of what caused the
elliptical distortion in the pattern.
Perhaps someone has measured this. If the angle of the major axis
receive antenna pattern changes when
switching between LH and RH and the satellite antenna is linearly
polarized this could account for some change
in received signal strength. Other than that I am at a loss to explain
why switching LH-RH on a receive antenna
would cause a large change in the strength of a signal received from a
linear antenna.
tnx & 73 W9KE Tom Doyle
------------------------------
Message: 13
Date: Sat, 4 Aug 2012 17:44:28 +0000
From: andrew abken <kn6za@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Antenna Polarization Technical Question
Message-ID: <COL102-W230856ACDCE8D32FD990CDE7C90@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Tom,
I thought fo-29 was transmitting circular. Would not surprise me if I was
wrong:)
Andy,
kn6za
------------------------------
Message: 14
Date: Sat, 04 Aug 2012 10:49:34 -0700
From: Greg D <ko6th.greg@xxxxx.xxx>
To: Michael Bales <mikebales@xxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: US Virgin Islands Satellite Operator
Message-ID: <501D60AE.1020905@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii; format=flowed
Hi Mike,
Generally, Sat operators don't call CQ, at least not like they do on HF.
Especially on the FM birds, the general protocol is to throw your call
sign in during a pause in the activity, when you can find one. It's more
like working through a busy terrestrial FM repeater. The trick is to be
able to tell the difference between a break in the traffic, where
nobody's keyed up, and a double (or triple, or quadruple), where you'd
just be adding to the confusion. If there's someone you want to work
specifically, quickly injecting <their call sign> <your call sign> is
most likely to fit. Spare the phonetics until you need to be precise;
clarity with speed is the objective.
If there's nobody on, or in a quiet part of an SSB/CW bird's bandpass, a
brief CQ Satellite de <call sign> is needed to let people know you're
there, and so they can get roughly tuned to you. Hopefully you have full
duplex capability (being able to listen while you're transmitting), so
you can tell if someone else is keying up. Satellite contacts tend to be
fairly quick, since the passes are so short. Round-tables are possible
on the SSB/CW birds, and even fun, but you need to keep things moving.
Because SSB/CW doesn't have the capture effect that FM has, full duplex
operation on an SSB/CW bird means you can even talk at the same time and
be understood.
As for arranging a scheduled contact, the neat thing about Satellite
communication is that you can predict with mathematical certainty when
the "band" will be open. Let us know when you'll be on, and on what
bird, and I'm sure you'll have lots of company. Good luck, and enjoy!
Greg KO6TH
Michael Bales wrote:
> Hi all- I'm relatively new to sat operations/ but not ham radio(novice in
1987 then general in 1996), and noticed this message. I've been researching
alot and now have suitable equipment for working birds. How would I go
about finding someone(s) to schedule a few contacts with, as opposed to
calling cq to no-one inparticular? Any info/help is greatly appreciated...
73 - Mike - k8mcb
------------------------------
_______________________________________________
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 7, Issue 245
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