Nice BIO Series Manual page 25

The special functions can be activated by
soldering a small drop of tin (Fig. 5) as per
the following table.
None: All temporary channels
Jumper 1: 1 step/step ...2, 3, 4 temporary
Jumper 2: 1,2 step/step ...3, 4 temporary
Jumper 3: 1 timer ...2, 3, 4 temporary
Jumper 4: 1 burglar alarm ...3, 4 temporary
Jumper 5: all step-by-step channels
ANTENNAINSTALLATION
To obtain efficient operation the receiver requires a tuned antenna (NICE ABK - A B K I T type). Without an anten-
na, the range is reduced by a few metres. The antenna must be installed as high as possible. If metal frames
or reinforced concrete is nearby, install the antenna above them. If the cable supplied with the antenna is too
short, use a coaxial cable with a 52 Ohm impedance (e.g. RG58 with low loss <20 dB for 100m. at 400 MHz).
The cable must not exceed 10m. in length. Connect the core to terminal 2 and the sock to terminal 1 (in the
dual position unit). If the antenna is installed where there is no sturdy floor (building work) the sock terminal can
be earthed (grounded) so as to obtain a larger range. Obviously the earth (ground) plate must be in the imme-
diate vicinity and of high quality. If the ABK - A B K I T tuned antenna cannot be installed, satisfactory results can
be achieved if a section of wire is stretched 2.45 m. length and connected to terminal 2 to act as an antenna.
Fig. 5
-25 -
GB
None jumper
Jumper 1
Jumper 2
Jumper 3
Jumper 4
Jumper 5