AZ-EL system

Discussion in 'Satellite and Space Communications' started by KC8CTC, Apr 17, 2012.

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  1. KC8CTC

    KC8CTC Ham Member QRZ Page

    I ws looking and Googling a AZ-EL system to start for SATs. I got an ICOM IC-821 an thought this would be a good radio...wanted to do birds. I have an arrow for FM but wanted to build AZ-EL system for SATs. Anyway...I guess I have a lot of reading to do...STAMPS PICS control with cpu .

    I was hoping for a little easier entry into the system and the sticker shock WOW.....I know that the antenna system can be expensive but I look at the you tube and not everyone is using the y-5500 some of the related links do not work...guess article to old,

    I guess I am trying to find someone that has something that is a starter system that works or recommendations
     
  2. W9GB

    W9GB Ham Member QRZ Page

    Terry,

    The Yeasu G-5500 AZ-EL rotator system price has risen significantly since the March 2011
    Japanese earthquake & tsunami. Yaesu had some operations and sub-contractors in that region,
    Yaesu stated in late March 2011 that they moved some production to China.

    Due to the short-term unavailability of replacement motors for the Yaesu G-5500,
    David Palmer, KB5WIA actually rewound his damaged AC motor (and documented the work).
    http://kb5wia.blogspot.com/2012/03/yaesu-g5500-rotator-motor-repair.html

    A stepper motor AZ-EL system was shown at 2010 AMSAT conference,
    but I have not seen recent advertisements about that system.

    On YouTube in 2009, kuroshinin1 shows a stepper based system.

    Some telescopes have done the same with stepper motors
    http://www.bbastrodesigns.com/steppercircuit.html
     
    Last edited: Apr 17, 2012
  3. VK5TM

    VK5TM Ham Member QRZ Page

    Here's a link to the info on the 2010 Amsat AZEl system.

    http://kc4ri.com/index.php?p=1_7_SLCP-Sat-Tracker

    I have done a lot of searching for AzEl systems for the same thing.

    "Cheap" or "inexpensive" don't come into the equation for commercial systems and while there are a few Youtube videos of homemade systems, actual construction info is very sparse.

    I will be building one for myself with steppers that I will document on my website, but not for some time yet as other things are taking priority.

    Terry VK5TM
     
  4. KC8CTC

    KC8CTC Ham Member QRZ Page

    I have found 2 Alliance u-100...I am thinking of using them but I can't seem to locate all the info needed to build control interface or if a kit or pc board is available...anyone using the u-100 that would like to share. I think I can figure the Stamp programming out...I know it ma take awhile but the reward at the end of the tunnel will be nice.

    Maybe someone has updated the system and could assist...is anyone using the Saebrtrack controller? that is with the U-100 rotors
     
  5. W9GB

    W9GB Ham Member QRZ Page

    Terry -

    Many aspects of amateur radio are DIY, with only a handful of restrictions, pertaining to RF transmissions.

    The AMSAT-BB reflector previous conversations (you can check their archives for more)
    http://www.mail-archive.com/amsat-bb@amsat.org/msg01793.html

    Yes, some AMSAT operators have used the Alliance U-100/U-110 for
    azimuth & elevation control of satellite antennas.
    http://groups.yahoo.com/group/fm-satellite/message/2022

    K8DAV Stamp control
    http://www.k8dav.com/
    U-100 Project
    http://www.k8dav.com/u100_info.htm
    ==
    Bill Erwin, N9CX Control System for U-100
    http://n9cx.net/SWODS_AZ_EL_v1.0.ppt
     
    Last edited: Apr 21, 2012
  6. W5PFG

    W5PFG Premium Subscriber QRZ Page

    Regarding those rotors, many do use them... Recently one of my friends acquired a pair of them and has been using them. You might email AC0RA as he recently put up a pair of them.
     
  7. KC8CTC

    KC8CTC Ham Member QRZ Page

    If I were using separate AZ and EL rotors I see that there are Yaesu G-550 available for EL which would work for AZ to make a tracking system with the available control boxes and tacking boxes like the LVB Tracker?
     
  8. KC8CTC

    KC8CTC Ham Member QRZ Page

    Could a Yaesu g550 and a Yaesu G450 rotors be combined or interfaced for an AZ-EL system? using either the LVB tracker or rs 232 Yaesu interface.
     
  9. KB1PVH

    KB1PVH XML Subscriber QRZ Page

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