Wildlife Materials TRX-2000S Operating Instructions

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OPERATING INSTRUCTIONS FOR THE TRX-2000S RECEIVER

Important Precautions: Please read all instructions before usage.

DO NOT EXPOSE TO WATER, FIRE or EXCESSIVE DUST. Aluminum box is water
resistant; interior is NOT GUARANTEED WATERPROOF. In rain or fog, close lid, wrap
in plastic or use from inside vehicle.

When the DC external power cord is used, ALWAYS insert the cord's plug into the

receiver's DC external power jack BEFORE plugging the cigarette lighter cord into
a vehicle. Failure to follow this procedure can cause the fuse in the cigarette lighter

power plug to blow.

After batteries have been used for 5 hours, they should be charged for 4 hours for each
hour of operation. Do not charge more than 24 hours. Overcharging can result in
loss of battery life.

INFORMATION about CONTROLS:

ANTENNA JACK: Accepts any 50 ohm coaxial cable with a BNC plug. To insert plug,
push in jack and give a slight twist to the right.

ATTENUATOR Switch: Prevents swamping of the received signal at close range. When
the transmitter-wearer's signal seems to come to the receiver with equal strength from
all directions, an attenuator can make the true direction easier to find. Turn Attenuator
switch ON. The strongest signal will come from one direction, where the animal is
located. When not needed, (if transmittered animal moves farther out) turn attenuator

switch OFF.

PHONE JACK: Allows use of monaural headphones or earphones with 1/8-inch (3.5
mm.) plug.

GAIN: Varies the sensitivity of the receiver. Lowest gain is obtained by turning the
control to the left; highest gain is achieved by turning the control to the right.

∆ (DELTA) TUNE: Makes fine adjustments in the receiver frequency in order to give the
most pleasant tone to the transmission being received. When the knob pointer faces up
or is centered, the receiver will be tuned to the exact frequency indicated by the
frequency switches (located to the right of the signal meter). When the knob pointer is
turned to the left, it tunes in a slightly lower frequency; when turned to the right, the
receiver is tuned slightly higher in frequency than frequency switches indicate.

SIG/BAT TOGGLE SWITCH: Causes the meter to indicate either the signal strength of
a transmission being received or a low battery in the receiver. Normally, a charged
battery will register 6 or 7 on the meter. If the meter falls below 6, the battery requires
recharging.

LED/ML TOGGLE SWITCH: Allows user to select either the meter light for night
tracking or the flashing LED circuit (located at the upper left of the meter) which gives
off an intensity proportional to the strength of the incoming signal. A center-off position
allows the user to save battery drain during daytime.

INT/EXT TOGGLE SWITCH: Chooses the means of powering the receiver--either the
internal receiver battery or the external DC power source. When the receiver is not in
use, the switch should be left in the center-off position.

Signal METER: Serves the dual purpose of registering a low battery or relative signal
strength. The previously mentioned SIG/BAT toggle switch selects the information
desired.

FREQUENCY SELECT SWITCHES (3): Identify the frequency to be used by the
transmitter. Small pushbuttons, marked with "+" or "-", will change the number in the
window of each switch until the last three numbers of the transmitter frequency are
selected. EXAMPLE: If a transmitter frequency label is marked 217.137, then 137 will
be selected by pushing the switches. The ∆ TUNE control might require adjusting to
give the most pleasant tone to the transmission. NOTE: The last digit (right hand
switch) may need to be moved up or down one digit, when temperature variations or
other factors intervene, to allow for easy adjustment of the ∆ TUNE near the middle of
its range.

BAND SELECTION TOGGLE SWITCH: Located at upper right, this switch allows user
to choose which band (of two choices) to receive a signal on. Band A, beneath switch,
will always bring in the lower frequency band of the two available. Band B, above the
toggle switch, will bring in the higher frequency band programmed to the receiver.

DC EXT POWER JACK: Allows receiver to be powered by a DC power cord with
cigarette lighter plug-in.

AC CHARGER: Allows receiver's NiCad battery to be charged from a standard 110-120
VAC power source. NOTE: Charger should be left on 12 to 16 hours but never more
than 24 hours. Overcharging will shorten battery life.

AC CHARGE CORD and DC EXTERNAL POWER CORD: Included as accessories. A
leather carrying case is optional (Part No. 1000S-CC).

Operating Instructions:

1. Turn the POWER SWITCH to INT for internal battery usage, or to EXT for
external power source. If the DC external power cord will be used, insert the cord's plug
into the receiver's DC external power jack BEFORE plugging the cord's cigarette lighter
end into a vehicle.

2. Preset GAIN control to "12:00 o'clock" position.

3. Preset ∆ TUNE to 0 position.

4. Choose Band A (the lower frequency programmed to receiver) or Band B (the
higher frequency). Example: If you ordered a receiver with the 216 and 219 ranges, the
receiver will tune in 216 when you choose Band A and will tune in 219 signals when you
move the toggle switch up to Band B. The receiver operator can go back and forth
between frequency bands as needed.

5. Dial desired frequency on the 3 FREQUENCY SWITCHES. Push the small
buttons marked with "+" or "-" until numbers represent the last 3 digits in the transmitter
frequency. EXAMPLE: A transmitter marked 217.650 would require the switch
numbers to register 650.

6. Attach antenna cable to ANTENNA JACK by pushing the BNC plug down and
twisting slightly to the right until it clicks into place.

7. Activate transmitter now.

8. ∆ TUNE control can now be adjusted to give the most pleasant tone/pitch from
receiver. Each time you change frequencies (shift from lower frequency range on
Band A to higher frequency range on Band B and vice versa) you will need to adjust

the ∆∆∆∆ Tune control for best tone.

9. Advance the GAIN control slowly in clockwise motion as far as necessary to
receive a clear signal.

10. If the signal sounds loud or distorted, turn the GAIN control counterclockwise
until the signal is clear and acceptable in volume.

11. If the ∆ TUNE control cannot bring in the signal clearly and with a pleasant pitch,
the last FREQUENCY SWITCH on the right can be moved up or down 1 or 2 digits to
bring the tuning within the range of the ∆ TUNE control. If the right switch is already at
an extreme, e.g. 0 or 9, the middle digit can be readjusted up or down one number.