TX4600
INSTRUCTION MANUAL
PAGE 19
SEEK MODE
The Seek mode is a unique feature that allows
you to continuously scan a band of frequencies
between 403 MHz and 520 MHz for activity.
Once the radio has reached the upper limit of
520 MHz it will resume scanning from 403 MHz
again. If you find an active frequency you can
assign it to a Listening Channel. This feature
makes it easier to locate active channels when
you aren’t sure of the exact frequency you want
to listen to.
ENABLING THE SEEK MODE
NOTE:
Before using the Seek mode you should:
1. Preselect your preferred frequency step (12.5
kHz or 25 kHz).
2. Enable the Listening channel numbers that
you wish to store active frequencies into.
You cannot use Seek mode unless at least
1 channel is enabled.
3. Select the Numeric mode so that the
frequency can be displayed (rather than the
ALPHA label).
To enable the Seek mode
1. Switch the radio OFF.
2. Hold the
SCAN
key while switching the radio
ON
again. ‘SEEK’ will be displayed for a few
seconds. The radio is now in Seek mode.
NOTE:
When you have finished using the Seek
mode simply switch the radio off. When you
switch it on again, normal operation will be
restored.
SCANNING FOR ACTIVE
FREQUENCIES IN THE SEEK MODE
To scan for active frequencies and store
them into a listening channel:
1. Select the required Listening channel (81 –
99). The frequency currently selected for that
channel will be displayed.
2. Briefly press the
SCAN
key. The radio will
begin scanning the frequency band starting
from the selected frequency. The channel
number will remain constant (because the
radio is scanning frequencies not channels)
but the frequency will change as the scan
advances through the band.
3. To change the scanning direction press the
or keys. Press key to scan upwards in
frequency or key to scan downwards.
4. When a signal is found, scanning will pause
on that frequency. Once the signal has gone
and the frequency remains clear for 5 seconds,
scanning will resume.
5. To manually skip over an active frequency and
continue scanning, press the
CALL
button. To
continue scanning in a specific direction or to
change the direction, press the appropriate
or key.
6. When you find a frequency you wish to store,
press and hold the
SCAN
key until the radio
beeps. The frequency will be stored under the
selected Listening channel number.
To store active frequencies into other Listening
channels repeat steps 1 – 6 above.
SETTING SEEK MODE FREQUENCY
LIMITS
When in Seek mode, the default frequency
range is the entire Listening band of 403 - 520
MHz. However, in many cases you may only be
interested in a searching for signals within a
small section of the available frequency band. To
make searching easier the TX4600 allows you to
set upper and lower frequency limits. The Seek
function will then search only within those limits.
This limits the scan to the area you are most
interested in, thereby increasing the chance of
finding an active frequency within that band.
To scan within frequency limits
1. Select the required Listening channel (81 –
99). The frequency currently selected for that
channel will be displayed.
2. Hold the
MENU
key until the radio beeps. The
radio will enter the Frequency Edit mode.
3. Select the LOWER frequency limit using the
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