Knights Electrocom

An optional groundplane kit to fit on the Solarcon A99.

The kit consists of 4 fibreglass groundplanes, approx 6ft long, and a mounting collar.
The collar fits at the base of the A99 and the groundplanes are angled downwards at approx 34'

Original Solarcon GPK, made in USA (not to be confused with cheap UK copies).

An optional groundplane kit to fit on the Solarcon Imax 2000.

The kit consists of 4 fibreglass groundplanes, approx 6ft long, and a mounting bracket.

Original Solarcon GPK, made in USA (not to be confused with cheap UK copies).

This kit does not fit the Solarcon A99

A replacement top section for the Solarcon A99 base antenna.

Limited stock available of the original Firestik A99 upgrade. Made in USA.

Not only is this shorter than the original A99 top section, but also claims a higher gain because it is wound (like a Firestik) rather than just a straight wire.

Everyone who has used one has reported some gain over the standard A99.

A replacement top section for the Solarcon A99 base antenna.

Originally these were made by Firestik and proved very popular, but they have not been available for several years now - so Thunderpole have now made their own version of it in the UK!

Not only is this shorter than the original A99 top section, but also claims a higher gain because it is wound (like a Firestik) rather than just a straight wire.

Everyone who has used one has reported some gain over the standard A99.

Single replacement groundplane radial for Sirio 827 antenna.

A full set of 8 replacement groundplane radials for Sirio 827 antenna.

This plastic ring clamps over the radials of the 827 to stop them vibrating in the wind.

Anyone with an 827 will know the way the radials "sing" in the wind, this simple device eliminates that problem.

Replacement set of the telescopic sections of the Sirio 827.  Consists of all sections except the base and first section.

Sirio replacement top section with anti-static "ball".  This fits various Sirio antenna such as the 1/2 wave and 5/8 wave (ie antennas which come with this top as standard).

Note: this does NOT fit the 827

A replacement set of plastic sleeves to suit various Sirio base antennas.

A groundplane kit to allow you to use a mobile antenna in your loft etc.

Consists of a small aluminium plate (approx 6" square) with a hole in the middle to accept a standard antenna mount. Attached to this are 4 aluminium groundplanes approx 1.5m long, which lie flat on the ground.

Not ideal, but with a reasonable mobile antenna this will work better than any of the "loft" antennas.

Replacement centre for centre-fed dipole.

Ideal for homebrew construction.

Note: design has changed slightly from picture