5 Selecting The Transmission Frequency; And The Received Frequency; 5 1 Adjusting The Frequency On The Receiver; 5 2 Adjusting The Frequency - Monacor JTS SIEM-111/5 Instruction Manual

4.5 Selecting the transmission frequency

and the received frequency

The wireless transmission is made in the frequency
range of 518 – 542 MHz It is possible to adjust 961
different frequencies in steps of 25 kHz The trans-
mitter and the receiver must be set to the same
frequency; otherwise, signal transmission will not
be possible To facilitate the set-up of the system,
the units have four preset frequency groups (GROUP
A – D) with 16 channels each (CH 1 – 16)
Note: When several wireless systems are used at the same
time, the transmission frequencies of the indi vidual systems
should be carefully matched to prevent interference, e g
the preset frequencies within a group (GROUP A – D) may
be selected
4.5.1 Adjusting the frequency on the receiver
As some frequencies may already be reserved by
other users of wireless systems at the place of appli-
cation, the desired frequency should be adjusted on
the receiver before the transmitter is switched on If
a signal is received on this frequency [one or more
segments of the reception indication (a) are shown
on the display of the receiver], a different frequency
should be selected to prevent mutual interference
To adjust the frequency, proceed as follows:
1) Switch on the receiver: Turn the volume control
(18) from the left stop The display (23) will show
the current adjustments
2) Press the button SET (26) The menu will be dis-
played with the first menu item "Frequency"
selected
Either adjust a frequency as desired in steps of
25 kHz or select a preset frequency.
To adjust the frequency as desired:
a) Press the button SET The submenu "Fre-
quency" will be indicated and a flashing
triangle will point to the current received fre-
quency
b) Select the new frequency with the button +
(21) or − (22) If the desired frequency corre-
sponds to one of the preset frequencies, the
group and the channel number will be indi-
cated on the display (e, i)
c) Press the button SET (26) When the confir-
mation prompt appears "Setup is Changed
Do you Want to Save? [+] Yes / [−] No", con-
firm the change with the button + or cancel
it with the button − "Saving " or "Cancel"
will briefly appear, then the menu will be dis-
played again
To select one of the preset frequencies from the
four frequency groups:
16
a) Use the button − (22) to select the second
menu item "Group / Channel" and confirm
with the button SET The submenu "Setup
Group" will be indicated and the flashing tri-
angle will point to the current group "G:"
b) Use the button + (21) or − (22) to select the
new group (A – D) and confirm with the button
SET The flashing triangle will now point to the
current channel "CH:"
c) Use the button + or − to select the new chan-
nel (1 – 16) The preset frequency for this chan-
nel will be indicated below it (j)
d) Press the button SET (26) When the confir-
mation prompt appears "Setup is Changed
Do you Want to Save? [+] Yes / [−] No", con-
firm the change with the button + or cancel
it with the button − "Saving " or "Cancel"
will briefly appear, then the menu will be dis-
played again
3) To exit the menu, select the menu item "Exit"
with the button + (21) or − (22) and confirm with
the button SET (26) All current adjustments will
be indi cated on the display again
4.5.2 Adjusting the frequency

on the transmitter

1) Switch on the transmitter with the button
POWER (1) The display (2) will indicate the cur-
rent adjustments
2) Press the button SET (4) for more than approx
3 s In the upper line (k) of the display, "FREQ "
will flash
Either adjust a frequency as desired in steps of
25 kHz or select a preset frequency.
To adjust the frequency as desired:
a) Use the button + (3) or − (5) to select the new
frequency or confirm with the button SET (4)
To select one of the preset frequencies from the
four frequency groups:
a) Press the button SET (4) once again "GROUP"
in the upper line (k) of the display and "G"
above the group (q) currently adjusted will
flash
b) Use the button + (3) or − (5) to select the
new group (A – D) and confirm with the button
SET (4) "CH" above the channel (r) currently
adjust ed will flash
c) Use the button + (3) or − (5) to select the
new channel (1 – 16) and confirm with the
button SET (4)
will briefly appear before the frequency ad-
justment is exited