Becker AR 4201 - Calling up the Service Mode; Setting the Squelch Threshold

(b) Cal ling up the ser vi ce mode
Switch off the VHF trans cei ver. Hold the mode key (MDE)
pres sed and at the same time switch on the unit. The VHF
trans cei ver swit ches to the ser vi ce mode wit hout a unit test.
SqL ap pe ars in the top line and the switch on thres hold of
the squelch is shown on the bot tom line.
NO TES :
l The set tings are se lec ted in steps by brief ly pres sing the MDE key
in the ser vi ce mode. If the MDE key is pres sed at the end of the set -
ting, the set ting SqL then ap pe ars. If a di rect re turn to the SqL set -
ting is re qui red the MDE key must be pres sed for at least one se -
cond.
l If set tings are not ac ti vat ed, (e.g. scan functi on) this mode is skip -
ped by pres sing the mode key.
l In the ser vi ce mode the VHF trans cei ver ope ra tes in de pen dent ly of
the set tings on the con trol pa nel, on the fre quen cy which was last
set as the ac ti ve fre quen cy. Wenn the PTT-Key is pres sed in the
ser vi ce mode, the dis play in di ca tes in the top line the ac ti ve fre -
quen cy
l The user can in ter lock his equip ment con fi gu ra ti on set tings with
the aid of a pass word. The VHF trans cei ver is de li ver ed from the
fac to ry wit hout a pass word. Sec ti on COdE “En try of pass word for
in ter loc king the equip ment con fi gu ra ti on” des cri bes how to en ter a
pass word.
1 Set ting the squelch thres hold
a If functi on SqL is cal led up, the fol lo wing dis plays ap pe ar.
Top line SqL
Bot tom line 00 to 200 Stan dard va lue 130
(HI sen si ti vi ty LO)
b By me ans of the kHz switch, the squelch thres hold can be
al te red up wards or downwards in steps of 5. The set va-
lue is sto red by pres sing the STO key.
IN STAL LA TI ON AND OPE RA TI ON
AR 4201 - ( )
Page 3-11
23-10-01 De cem ber 15/98