Software
English, Revision 06, Date: 14.12.2016
32
5.2.2.3
(F)requency And Antenna Tuning
Figure 16
Menu: (F)requency And Antenna Tuning
The
receiving frequency
to set “(
)x“ is calculated by using F
ZF
= 455 kHz and the
bandwidth B = 5,5 kHz according to the following equation:
Figure 17
Equation: Calculating the receiving frequency
As there is a single sideband 155300 Hz are to be set for the upper sideband,
157500 Hz for the lower one.
With
the automatic tuning can be activated. After each turning-on the transmitter
tuning is checked. This procedure takes about 16 seconds. After that the adjustment
is checked each 10 seconds (if there is no transponder in the field), if necessary an-
other tuning is made.
With
,
or
the sending antenna can be tuned by setting its current consumption
the the maximum (so the largest range is reached). By using
the sender can be ac-
tivated (
1
) or deactivated (
0
) for checking the system. When leaving the menu it is au-
tomatically set to
1
.
S:0006 X:+0007 Code: 00000000 Read: 0:
Frx[/Hz]:66800 Ftx[/Hz]:127970
U[/mV]:22500 I[/mA]: 290 T[Grd.C]:+28 E: 0000 N: 0
(R)x_Frequency [/Hz]: 1553000 ( 66750 Hz)
A(u)to-Tune 0
(A)ntenna-Tuning [0..15,+,-]: 7
switch (T)ransmitter: 1
(Q)uit Menue
F
rx
4
F
ZF
64 kHz
–
B
2
----
–
=
