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Midland CT990 instruction guide
Frequency shift direction (ShiftDIR) - Menu Utilities 4
In Standby mode press
Menu Uti 4
; ”
SHIFTDIR
” will appear on the
display.
Press
Menu
to enter the function. Use the
▼
/
▲
keys or rotate the encoder to
select
+/-/OFF
, then push
Menu
again for confirmation.
To return to standby mode press
Back
.
+
(positive offset)
the tx frequency is higher than rx frequency
-
(negative offset)
the tx frequency is lower than rx frequency.
OFF
frequency shift direction not enabled.
NOTE
: if the frequency offset is out of the allowed frequency band, the radio can-
not transmit. So please make sure that the frequency offset and the rx frequency
are within the allowed frequency range.
Frequency offset (Off-Set) - Menu Utilities 5
The offset is the frequency difference between transmission and reception.
The frequency offset of this radio is between 0 and 99.995 MHz.
In standby mode, press
Menu Uti 5
. The screen will display “
OFFSET
”.
Press
Menu
to enter the function. Press the
▲
/
▼
buttons or rotate the enco-
der to select the frequency offset or you can manually digit the offset with the
keypad. Press
Menu
to confirm.
To return to standby mode press
Back
.
With the frequency offset, it is possible to transmit and receive in two different
frequencies.
Wide/narrow bandwidth (Bandwidth) - Menu Utilities 6
In standby mode, press
Menu Uti 6.
The display will show “
NARROW-
WIDE
”.
Press
Menu
to enter the function. Press the
▲
/
▼
keys or rotate the encoder
to select
Wide/Narrow
(25/12,5KHz) bandwidth, then press
Menu
to confirm.
To return to the standby mode press
Back
.
