The double telescopic antenna mast / tripod is continuously height-adjustable. The mast rods are made of glass fibre to avoid unwanted reflexions. The modular design makes it possible to use different telescope parts and it can be mounted on a mast foot made of stainless steel or one made out of low-reflective fiberglass. Both of them provide a secure stand and easy adjustment on uneven ground. Antennas or adapters can be mounted on the 3/8″ male thread.
The AM BBHA 9120 K antenna mast is specially adapted to the needs of the BBHA 9120 K horn. The horn mounted in the mast can be locked at a height of 0.9 m to 1.8 m and can be adjusted in both polarisation and tilt. The polarisation ring has a detent in 45 degree increments. The tilt is infinitely adjustable between 0 and 20 degrees.
For easy handling the mast comes with 4 wheels, two of them are equipped with a brake. By mounting a plate, devices such as amplifiers can be placed directly under the horn to allow short cable routes.
The main application of AM 9104 is the measurement of radiated emission with antennas where frequent height scans are required. The mast can be set up and disassembled without any tools within 2 minutes. Due to its small transport dimensions it can be stored without problems even in small cars. The antennas are mounted with their 22 mm tube and indexing ring directly into the antenna support. The polarisation is fixed by a latching mechanism in the antenna support that uses the indexing ring mounted to any Schwarzbeck antenna.