Lectrosonics R5a User Manual download pdf (Page 7)

IFB Receiver

Receiver Operating Instructions

Before operating a receiver, one or more IFB T5 trans-

mitters must be placed in XMIT mode, with each

transmitter set to the desired frequency and connected

to a proper antenna, audio source, and power source.

The transmitter frequency block must be the same as

the receiver frequency block as marked on each unit.

Normal Operation (already programmed)

1. Set the Frequency of the receiver to match the

frequency of the transmitter by using the two HEX

rotary switches located on the side of the receiver

under the sliding door. The 1.6M switch is for

“coarse” adjustment (1.6 MHz per click) and the

100k switch is for “fine” adjustment (0.1 MHz per

click). Setting both to zero (00) is the low frequency

end of the block and setting both to F (FF) is the

highest frequency end of the block.

2. Plug an earphone or headset into the 3.5mm jack.

Be sure the unit has a good battery.

3. Rotate the knob clockwise to switch the power ON

(Do NOT hold the knob in while switching power

ON). The LED will illuminate. Rotate the knob to

set the desired audio level.

4. If channel frequencies have been stored in the

memory, change channels by pressing the knob

briefly and release. The LED will blink the next

channel number (frequency) and the receiver will

resume operation on that channel.

If no channel frequencies have been stored when

pressing the knob to change channels, the LED will

flash from green to red to yellow to green, indicating

no stored channels and the unit will resume opera-

tion on the channel set by the switches.

5. Whenever power is switched ON, the unit operation

defaults to the channel frequency set by the

switches.

Programming - Add a New Frequency to

The Next Open Channel

1. Position the receiver at a location within 20 to 100

feet of the transmitter or transmitters.

2. With the power ON, depress the knob until the LED

starts rapidly blinking, then release the knob.

3. The unit goes into program mode and does a scan/

search. Previously programmed frequencies will be

automatically skipped. When the unit stops on a

new frequency audio from the transmitter will be

heard in the earphone and the LED will stop

blinking rapidly and will change to a slow blink

mode.

The unit is now waiting for an operator decision.

You must now decide to either SKIP or STORE the

frequency (step 4 or 5 below.) Switching the power

to OFF without storing will delete the frequency.

4. To SKIP the frequency, depress the knob briefly

and the scan/search will resume.

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 scan/search for other fre-

quencies. 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 fre-

quency 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.

Rio Rancho, NM 7

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Lectrosonics R5a User Manual Page 7

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