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  1. J

    Sirio Gainmaster Halfwave

    Yes thanks for the advice. Makes sense now :) I slid the poles down each other to 1783mm for each which was 3566mm in total. I found that 130mm came off the wire after the adjustments. I dont really know what the center freq is by default but hopefully I will be near 1.1 swr on 27.500 where I...
  2. J

    Sirio Gainmaster Halfwave

    Thanks Bob Yes I need to orginise a lift to the side of the building, access isnt that good. Height is about 36ft to roofline and then I have a 9ft mounting pole. So expect to 5-6ft above roof line. So should be good I hope. Once this is up its staying up as the lift hire is quite expensive and...
  3. J

    Sirio Gainmaster Halfwave

    I hope someone can help. I am about to install an old setup I have had not used for about 20 years and have so but the recpection is poor. So I purchased a Sirio Gainmaster Halfwave and want to get it mounted on the roof. The only thing is I am confused as to where I should cut the antenna...
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