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Message: <blockquote data-quote="franksanderdo" data-source="post: 746597" data-attributes="member: 357262">Hi lnb15kI have done some trials with secondary refeloctors on one of my dishes and found the following:1. You can improve a little a poorly focussing large dish.2. It is some effort as you have to find the best "focus" of the large dish, and than produce a secondary fitting to that.3. producing the secondary is far easier than the primary as it is much smaller 4. It helps a lot if you can adjust lnb distance to secondary dish for refocusing.As my primary dish (1.4m) was prodicung in best position a 8cm diameter and 3 cm long focuspoint I did the trials with a 12cm secondary.As the secondary has to have opposite shape I one of those wide range mirrors you can stick to you mirror on the car. With that I improved the signal appr. 5%.See you aroundFrank</blockquote>