Clear-Com PRC-2 - Manual (Page 13)

Vitec Group Communications
PRC-2 UHF Multi-Frequency Belt-Pack IFB Receiver 1 - 7
5. To STORE the frequency into a channel memory, depress the knob
until the LED blinks the new channel number, then release the knob.
The frequency is now stored in an open channel.
6. The unit will continue to scan/search for other frequencies. To store
more frequencies repeat steps 4 and 5 above. Up to 5 frequencies
can be stored in memory channels.
7. When all desired frequencies are stored switch the power to OFF for
a few moments, then switch back to ON. The unit will default to the
channel number set by the switches and resume normal operating
mode.
8. The first scan is made at low sensitivity and searches for only high
level transmitter signals to avoid intermods. If the receiver does not
stop on any frequency in the first scan, that means an IFB
transmitter was not detected. In this condition the LED will change
from a fast blink to a slow blink indicating the end of the scan. The
complete scan should take 15 to 40 seconds.
9. If the receiver still does not stop on any frequency, check that the
transmitter is ON. Also, if a frequency is not received or received
but distorted, some other signal may be interfering on that
frequency. Change the transmitter to another frequency and try
again.
A second scan at high sensitivity is initiated by depressing the knob
briefly at the end of the first scan to search for low level transmitter
signals. When the scan stops and the transmitter audio is heard,
either SKIP or STORE the frequency (step 4 or 5 above).
10. Switching the POWER to OFF during any mode simply terminates
that mode and returns the unit to normal operating mode when the
power is switched back to ON.
ERASE ALL 5 CHANNEL MEMORIES
1. With power OFF, depress the knob and turn the unit ON. Continue
to hold the knob down until the LED starts rapidly blinking. The
memory is now erased and the unit will go into scan/search mode.
2. Continue from step 3 above PROGRAMMING - ADD NEW
FREQUENCY….
MULTIPLE TRANSMITTER SETUP
When using this IFB receiver in a search mode, with two or more
transmitters running at the same time, the receiver may stop on a
false signal under the following conditions:
• Two transmitters are on and transmitting.
• The distance from the transmitters to the IFB receiver is less than 5
feet.
The false hits are caused by intermodulation or mixing in the front end
of the IFB receiver. At a 5 to 10 foot distance, the two carriers are so
strong at the receiver, that even this well designed front end will mix
the carriers and produce phantom frequencies. The IFB receiver then
halts its scan and stops on these false frequencies. All receivers will