A very high quality 5/8 wave antenna with groundplanes. This is one of the best base antenna available.
This is basically an upgrade of the Sirio 827, it is the same antenna but with just 2 additions:
- Includes Anti Vibration Ring
- Has an anti-static cap on the top tuning tip.
Made from aluminium with Magnesium for better radio conductivity and maximum strength. This is certainly the strongest aluminium antenna available.
The large open coil prevents any build up of water or condensation and allows the antenna to handle high levels of RF power.
The top section is adjustable for swr, although in our experience there is usually no adjustment necessary.
Download a copy of the instructions here