INSTALLING THE AERIAL
The receiver needs an ABF or ABFKIT type aerial to work properly; without an aerial the range is
limited to just a few metres. The aerial must be installed as high as possible; if there are metal or
reinforced concrete structures nearby you can install the aerial on top. If the cable supplied with the
aerial is too short, use a coaxial cable with 52-Ohm impedance (e.g. low dispersion RG58); the cable
must be no longer than 10 m. Connect the centre part (core) to terminal 2 and the shield to terminal
1 (in the relative part). If the aerial is installed where the earth connection is not good (masonry
structures), the shield’s terminal can be connected to earth which will provide a larger range of action.
The earth point must, of course, be in the immediate vicinity and be of good quality. If an ABF or
ABFKIT aerial cannot be installed, you can get quite good results using the length of wire supplied
with the receiver as the aerial, laying it flat and connecting it to terminal 2.
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