User's Manual
Lotek Biotracker Receiver User’s Manual Page 7
generally the digital keys are used for setting gain to a particular, repeatable level
(displayed on the LCD). For normal tracking situations, where it is not necessary to
know the exact gain level, the knob allows both faster and finer control of gain.
Scanning
This key puts the receiver into Scan Mode. The top row of the LCD displays
‘INTERVAL’ and a number between 001 and 999. This is the period in seconds
the receiver dwells on each selected channel when scanning. The number can
be entered directly via the numeric key pad, or increased/decreased using the arrow
keys. When the desired interval is displayed, press [
] to set it.
Once the scan interval has been set, the LCD top row displays occupied channels and
indicates whether they are selected for scanning. The information displayed is
frequency, channel number and, for channels that are selected, the letters ‘SC’ or ‘AC’.
These indicate whether selected channels (SC) or all channels (AC) are to be scanned.
If a channel is not selected for scanning, only the frequency and channel number are
displayed. When scanning starts, these channels will be excluded. To select or deselect
a channel, press [
] which toggles channel selection. Do not press [
] to deselect a
channel, as this cancels Scan Mode. To toggle the selection/deselection of all channels
(AC) press [DEL]. Use the arrow keys to step through channels for selection.
When the channels to be scanned have been chosen, pressing [SCAN] starts the
receiver scanning. The bottom row of the LCD displays the frequency and number of the
channel currently being scanned, the gain level and the symbol for scan mode (curved
opposing arrows). The top line of the LCD displays signal strength and ‘AC’ or ‘SC’,
depending on whether all channels (AC) or selected channels only (SC) are being
scanned.
To cancel Scan Mode during scanning, press [SCAN], which returns to Channel Mode
with last channel scanned, or [
], which returns to the mode and frequency settings
prior scanning.
Store in Memory
When pressed in Frequency Mode or Channel Mode this key displays the last
used channel on the top row of the LCD. The channel number can be set either
with the arrow keys, or by entering a number directly from the numeric keypad.
If entered from the keypad, [
] must be pressed to set the channel. Pressing [STORE]
a second time puts the currently displayed frequency on the bottom row into the channel
displayed on the top row. The receiver is then returned to Channel Mode with the new
channel displayed in the bottom row.
The main use for [STORE] is to add new channels or change frequencies in existing
channels. Some typical sequences are shown below to illustrate this.
To add a new frequency to a new channel:
1. In Frequency Mode, tune to the frequency you wish to store in a channel.
2. Press [STORE] to display a channel on the top row of the LCD.
3. Select the channel in which you want the frequency to the stored (either using the
arrow keys or by direct entry via the numeric keypad followed by [
]).
4. Press [STORE] again to set the frequency in the chosen channel and automatically
switch to Channel Mode with the new channel displayed.
To change the frequency of an existing channel:
1. In Channel Mode select the channel to be changed.
2. Press [F/C] to change to Frequency Mode.