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the coils on the starduster 800 served a similar purpose to the traps on multiband antennas, to allow it to be used on more than one band, in the starduster m800's case 27 mhz and 88-108 mhz fm stereo. i think they would have only shortened the radials by a short amount as you say.

i doubt the starduster with coil loaded radials would be much less efficient than the full size version, when uk cb was first legalised the thunderpole antenna was the reverse of the shortened radial starduster in that the radials were full sized but the radiator was shortened, anyway to cut a long story short it was a very much underrated and very effective antenna here, efficiency wasn't hugely or even noticeably down on a standard starduster m400.

funnily enough the sirio tornado 27 or 827 with shortened
radials ain't that far down on antennas with full sized radials either. i think once you go by a certain length of radial,approx 1/8 of a wave then the gain becomes less and less, but the benefit that its less of an eyesore may well outweigh any performance gains, especially if you have retarded neighbours.

<blockquote data-quote="jazzsinger" data-source="post: 288710" data-attributes="member: 7426">the coils on the starduster 800 served a similar purpose to the traps on multiband antennas, to allow it to be used on more than one band, in the starduster m800&#039;s case 27 mhz and 88-108 mhz fm stereo. i think they would have only shortened the radials by a short amount as you say.i doubt the starduster with coil loaded radials would be much less efficient than the full size version, when uk cb was first legalised the thunderpole antenna was the reverse of the shortened radial starduster in that the radials were full sized but the radiator was shortened, anyway to cut a long story short it was a very much underrated and very effective antenna here, efficiency wasn&#039;t hugely or even noticeably down on a standard starduster m400. funnily enough the sirio tornado 27 or 827 with shortenedradials ain&#039;t that far down on antennas with full sized radials either. i think once you go by a certain length of radial,approx 1/8 of a wave then the gain becomes less and less, but the benefit that its less of an eyesore may well outweigh any performance gains, especially if you have retarded neighbours.</blockquote>

[QUOTE="jazzsinger, post: 288710, member: 7426"] the coils on the starduster 800 served a similar purpose to the traps on multiband antennas, to allow it to be used on more than one band, in the starduster m800's case 27 mhz and 88-108 mhz fm stereo. i think they would have only shortened the radials by a short amount as you say. i doubt the starduster with coil loaded radials would be much less efficient than the full size version, when uk cb was first legalised the thunderpole antenna was the reverse of the shortened radial starduster in that the radials were full sized but the radiator was shortened, anyway to cut a long story short it was a very much underrated and very effective antenna here, efficiency wasn't hugely or even noticeably down on a standard starduster m400. funnily enough the sirio tornado 27 or 827 with shortened radials ain't that far down on antennas with full sized radials either. i think once you go by a certain length of radial,approx 1/8 of a wave then the gain becomes less and less, but the benefit that its less of an eyesore may well outweigh any performance gains, especially if you have retarded neighbours. [/QUOTE]

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