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Author Topic: BATC “DigiTwist” Project — Low-cost Az-El tracking using SatTV parts  (Read 1974 times)
W9GB
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Posts: 3148




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« on: October 26, 2017, 05:30:48 PM »

British Amateur Television Club (BATC)
https://wiki.batc.tv/DigiTwist

BATC Forum
http://www.batc.org.uk/forum/viewtopic.php?f=2&t=5181

DigiTwist is an experimental 2 axis satellite tracker, primarily for the HamTV transmitter on the ISS. 2 broadcast satellite dish positioners are connected together and are controlled by a dual Diseqc pcb. The estimated cost of the 2 positioners, the joiner bar and the controller is £130.

Technomate TM-2600 M3 DiSEqC Motor — All Metal Geared
https://www.world-of-satellite.co.uk/Technomate-TM-2600-M3-DiSEqC-Motor-All-Metal-Geared

It is experimental in the sense that the satellite positioners were never meant to be used in this way and may fail. Development is continuing, particularly as to the size of the dish that can be carried. The 40cm dish shown is just for demonstration purposes. It has not yet received the ISS, mainly due to lack of opportunity.

More construction details and software, for early adopters of the test version of the Diseqc control pcb, will appear here shortly. The most difficult part is the drilling of the complex shape of the positioner rotor arm in the joiner bar. Quotations are currently being sought for production of a batch. To gauge demand, it would be helpful to register an interest by PMing or emailing me. g4ewj at yahoo dot com
« Last Edit: October 26, 2017, 05:34:48 PM by W9GB » Logged
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