A Typical Base Station.

This illustration shows the base station of Stan Ellis, VK2DDL.

It contains two HF transceivers, a 2-metre transceiver, a 2-metre “Packet” transceiver, a UHF CB transceiver, aerial tuning units, a Standing Wave Ratio meter and a wide-band scanner receiver.

Even with aerial switching, this equipment requires a number of different aerials. These are an 80/40 metre trap dipole, a multi-section collinear half-wave (2m), a wideband discone and a multi-section collinear half-wave (UHF).

The shack also houses a computer and an ink-jet printer, plus numerous accessories and textbooks.

With equipment such as this an amateur can engage in a variety of activities, including long-distance communication by morse code, voice, slow-scan television or computer.

VK2DDL shack Base station of Stan Ellis, VK2DDL

VHF and UHF FM communication over line-of-site paths, or greater distances via repeaters, offers a suitable means of maintaining contact with mobile or portable units with conveniently short aerials. Where repeaters are not available, greater distances may also be covered between base stations by using multi-element and highly directional rotatable aerials.

Once suitable transmitting equipment has been built, an amateur with a video-camera or a video source, such as a VCR, is also able to transmit TV signals to others directly or through a repeater. This is known as A(mateur)TV.