I am setting up a satellite station and have the following question. Does it matter if you use a south center or north center rotor. Is there advantages using one over the other.
Doug. KE4MSG
What type of rotor do you have???
73 de Angelo
--------------------------------------------------------- If you don't ask, you will never know!!
From: douglaswillets@verizon.net To: amsat-bb@amsat.org Date: Sun, 6 Nov 2011 09:28:05 -0500 Subject: [amsat-bb] Rotor
I am setting up a satellite station and have the following question. Does it matter if you use a south center or north center rotor. Is there advantages using one over the other.
Doug. KE4MSG _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
I have: Rradio= Kenwood ts 2000 Software= Satpc32 Rotor controller=Easy-rotor- control 3d (ERC_3D) Elevation=Yaesu 5400 Azimuth=Ham IV
________________________________ From: Angelo Glorioso n5uxt@hotmail.com To: amsat-bb@amsat.org Sent: Sunday, November 6, 2011 1:41 PM Subject: [amsat-bb] Re: Rotor
What type of rotor do you have???
73 de Angelo
--------------------------------------------------------- If you don't ask, you will never know!!
From: douglaswillets@verizon.net To: amsat-bb@amsat.org Date: Sun, 6 Nov 2011 09:28:05 -0500 Subject: [amsat-bb] Rotor
I am setting up a satellite station and have the following question. Does it matter if you use a south center or north center rotor. Is there advantages using one over the other.
Doug. KE4MSG _______________________________________________ Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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
With that rotor it is recommend to use south center.
73 de Angelo
--------------------------------------------------------- If you don't ask, you will never know!!
Date: Sun, 6 Nov 2011 11:06:52 -0800 From: lambright2001@yahoo.com Subject: Re: [amsat-bb] Re: Rotor To: n5uxt@hotmail.com CC: amsat-bb@amsat.org
I have: Rradio= Kenwood ts 2000 Software= Satpc32 Rotor controller=Easy-rotor- control 3d (ERC_3D) Elevation=Yaesu 5400 Azimuth=Ham IV
From: Angelo Glorioso n5uxt@hotmail.com To: amsat-bb@amsat.org Sent: Sunday, November 6, 2011 1:41 PM Subject: [amsat-bb] Re: Rotor
What type of rotor do you have???
73 de Angelo
--------------------------------------------------------- If you don't ask, you will never know!!
From: douglaswillets@verizon.net To: amsat-bb@amsat.org Date: Sun, 6 Nov 2011 09:28:05 -0500 Subject: [amsat-bb] Rotor
I am setting up a satellite station and have the following question. Does it matter if you use a south center or north center rotor. Is there advantages using one over the other.
Doug. KE4MSG _______________________________________________ Sent via AMSAT-BB@amsat.org. 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@amsat.org. 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
Hi Doug, KE4MSG
Since OSCAR-6 and all LEO satellites I have used north center rotors with limit swiches operating on south and I got problems pointing exactly the antennas during the ascending orbits when the satellite comes from south.
If you use south center rotors than the limit switches will operate on north and you will get the same problem for descending orbits when the LEO satellites comes from north.
For HEO satellite like OSCAR-10, OSCAR-13 and AO40 I have used another antenna system with south center rotor and limit switches operating on north because for most of the time the above HEO satellites were available with azimuth changing from west to south to east or vice versa but never passing through north.
73" de
i8CVS Domenico
----- Original Message ----- From: "DOUGLAS WILLETS" douglaswillets@verizon.net To: amsat-bb@amsat.org Sent: Sunday, November 06, 2011 3:28 PM Subject: [amsat-bb] Rotor
I am setting up a satellite station and have the following question. Does it matter if you use a south center or north center rotor. Is there advantages using one over the other.
Doug. KE4MSG _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
Doug, If you use a 180 Degree elevation rotator no. Passes almost always end up on one stop or another of the TV type rotators. By offsetting the "N" end of the rotator to the NE or NW and using the elevation rotator to pick the side of travel which coverers the current pass will prevent any running out of rotation during a pass. If you can find a 1&1/2 turn azimuth rotator the problem goes away completely.
Art,KC6UQH
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of DOUGLAS WILLETS Sent: Sunday, November 06, 2011 6:28 AM To: amsat-bb@amsat.org Subject: [amsat-bb] Rotor
I am setting up a satellite station and have the following question. Does it matter if you use a south center or north center rotor. Is there advantages using one over the other.
Doug. KE4MSG _______________________________________________ Sent via AMSAT-BB@amsat.org. 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
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participants (5)
-
Angelo Glorioso -
Art McBride -
DOUGLAS WILLETS -
DOUGLAS WILLETS -
i8cvs