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RF Reception

RF

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Setup Instructions

LR-100 Setup Instructions

  If you are using the LR-100’s power amplifier, make sure the unit is given sufficient room around the 

ventilation holes.

  If you are rack mounting the LR-100, use the optional LA-326 rack mounting kit. This kit allows for single and dual 

rack mounting, and comes with a security cover.

  For mounting on vertical or horizontal surfaces, use the optional L bracket mounting kit, part number LA-327.

Powering the Unit

NOTE: if the unit will not power up, see Resetting After an Overload Condition, page 17.

AC Power Operation

 

The unit comes with a UL listed inline power supply designed for 115 VAC, 60 Hz operation. Do not use any other 

AC power supply. Use of any non-Listen supplied power supply will void the warranty. (Battery use is permitted; see 

below.) Plug the power supply into the back of the unit at the connector labeled POWER. Now connect the power 

supply to power. 

Battery Operation

To operate the unit on a battery or +12VDC power supply, connect to the rear detachable terminal block as 

follows:

  1. 

Pin 3: +12VDC

  2. 

Pin 4: Ground

NOTE: When operating on the +12VDC battery supply, the POWER switch is bypassed and the unit is always on.

You can optionally charge batteries by also supplying power to unit with the batteries connected. In this case, the 

batteries are trickle charged at a rate of 18 - 36 mA. You should only use rechargeable type batteries. 

CAUTION: Attempting to charge non-rechargeable batteries may result in explosion and/or fire.

Detachable Terminal Block Wiring:

Pin 1:  S

Pin 2:  Speaker -

Pin 3:  Ground for Battery or Power Source connection

Pin 4:  +12VDC Battery or Power Source

Pin 5:  UP remote control function

Pin 6:  DOWN remote control function

Pin 7:  MUTE remote control function

Pin 8:  Common for remote control function

Installation - Audio Connections (See Quick Reference on pages 6-7.)

OUTPUT Audio

The OUTPUT audio section is composed of an OUTPUT audio selection switch, a male XLR balanced audio OUTPUT 

connector and two phono unbalanced audio OUTPUT connectors.

OUTPUT Audio Selection Switch

This switch selects what audio is routed to the OUTPUT audio connectors. The switch has three positions:

1.  RX ONLY. In this position, only RECEIVE audio is routed to the OUTPUT. When the transmitter is turned off, the unit is 

squelched and the RECEIVE audio is muted.

2.  RX + AUX. In this position, both the RECEIVE and AUXILIARY audio are mixed and routed to the OUTPUT.

3.  RX or AUX. In this position, the OUTPUT audio is either RECEIVE or AUXILIARY audio. When the RECEIVE audio is 

squelched (indicated by the illumination of the SQUELCH LED on the front panel), AUXILIARY audio is routed to 

the OUTPUT. When RECEIVE audio is not squelched, RECEIVE audio is routed to the OUTPUT.

LR-100 Setup Instructions

1

Summary of Contents for LR-100 Series

Page 1: ......

Page 2: ......

Page 3: ...you have any comments on how we might improve our products or our service we re here to listen Here s how to reach us 1 801 233 8992 1 800 330 0891 North America 1 801 233 8995 fax support listentech...

Page 4: ......

Page 5: ...k Reference Setup Instructions Programming Information Package Contents 3 Specifications 4 Architectural Specifications 4 Specifications 4 Quick Reference 6 Block Diagram 8 Setup Instructions 9 Instal...

Page 6: ......

Page 7: ...l Accessories See page 22 Listen Part Number LR 100 072 72 MHz LR 100 216 216 MHz LR 100 072 72 MHz or LR 100 216 216 MHz 120 VAC Power Supply LA 123 90 Degree Helical Antenna 72 MHz or LA 124 90 Degr...

Page 8: ...djustable 13 dBu maximum impedance 600 ohm Unbalanced Auxiliary Input Rear panel two 2 phono connectors unbalanced 10 dBu nominal input level adjustable 7 dBu maximum impedance 10k ohm Balanced Output...

Page 9: ...2 lbs 1 9 kg Shipping Weight 5 6 lbs 2 5 kg Rack Mounting One 1 rack space height 1 2 rack space wide one 1 or two 2 receivers can be mounted in one rack space optional rack mount LA 326 Environmental...

Page 10: ...and DOWN Channel tuning buttons SPEAKER CONTROL Adjusts the volume of your loudspeaker connected to the LR 100 and or the headphone SQUELCH Adjust so that when your transmit audio is off the Squelch...

Page 11: ...on UNBALANCED OUTPUT Phono 10dBu nominal AUDIO OUTPUT SELECTION For RECEIVE audio only select RX ONLY For RECEIVE audio mixed with AUXILIARY audio select RX AUX For RECEIVE audio when not squelched an...

Page 12: ...10 dBu Headphon Receive Level Auxiliary Level Male XLR 3 5MM Stereo Mic Line Common Ground 12 VDC External Battery Detachabl Electronic Switch Phono Auxiliary Balanced 0 dBu Unbalance 10 dBu XLR 1 4...

Page 13: ...s connected In this case the batteries are trickle charged at a rate of 18 36 mA You should only use rechargeable type batteries CAUTION Attempting to charge non rechargeable batteries may result in e...

Page 14: ...audio OUTPUT connectors The nominal OUTPUT audio level is 10dBu AUXILIARY Input The LR 100 has an AUXILIARY input that allows for greater functionality of the unit for a variety of applications The AU...

Page 15: ...SQUELCH LED on the front panel AUXILIARY audio is routed to the OUTPUT When RECEIVE audio is not squelched RECEIVE audio is routed to the OUTPUT Balanced Audio Output When connecting to the XLR balan...

Page 16: ...jack Adjust level with the SPEAKER volume knob Installation of Antenna A properly installed antenna is critical to the operation of the LR 100 Without a strong and consistent RF signal from the trans...

Page 17: ...ntil you find the clearest operating channel To Lock Into Only One Channel press and hold the SEEK button for 5 seconds to lock a receiver into the currently tuned channel Press and hold the button ag...

Page 18: ...high RF signal of the transmitter Set the squelch adjustment between the maximum and minimum squelch thresholds keeping the following in mind Minimum squelch threshold By adjusting the unit near this...

Page 19: ...isten equipment has been shipped to you with the SQ feature enabled You may need to disable the SQ function for one or more of the following reasons You are using your new Listen system with older ver...

Page 20: ...at least 300 KHz If there is no interference the following channels are recommended A C E I J and H for 72 MHz and channels 2A 2K and 2V at 216 MHz Distributed Spacing If you are using transmitters th...

Page 21: ...the antenna is clear of power lines NOTE If the RF signal to the 216 MHz models is too high the audio will be distorted This may happen if you are within 40 feet of the LT 800 216 transmitter In an ov...

Page 22: ...you use RG 8 cable rather than RG 58 It is a lower loss cable meaning that more of your signal will reach the antenna Long cable runs can result in signal degradation due to loss characteristics of th...

Page 23: ...50 16 16 16 D6 30 31 72 8000 P P P P P 32 16 H 72 8 72 8250 17 17 17 P7 31 33 72 8500 34 17 72 8750 18 18 18 P8 32 35 72 9000 E E E E E 33 36 18 I 72 9 72 9250 19 19 19 E9 34 37 72 9500 38 19 72 9750...

Page 24: ...7 216 3375 3G 14 26 216 3625 1H 15 27 216 3750 2H 48 48 48 F 8 15 216 3875 3H 16 16 C18 N18 216 4125 1J 17 17 C21 216 4250 2J 49 49 49 G 9 18 216 4375 3J 18 18 216 5125 1K 21 61 216 5250 2K 51 51 29...

Page 25: ...m adjustments are turned clockwise Make sure the unit is not MUTED indicated by the MUTE LED Make sure the unit is wired correctly Make sure the squelch adjustment is set correctly The audio is distor...

Page 26: ...rantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment...

Page 27: ...y failure of equipment to perform as intended Listen shall bear no responsibility or obligation with respect to the manner of use of any equipment sold by it Listen specifically disclaims and negates...

Page 28: ...gurations and 25 ft 7 6 m of RG 58 coax cable LA 107 Ground Plane Remote Antenna 216 MHz LA 125 LA 126 Antenna Kit for Rack Mount 72 and 216 MHz LA 125 for 72 MHz LA 126 for 216 MHz Remote Mount outdo...

Page 29: ...25 Notes...

Page 30: ...26 Notes...

Page 31: ...27 Notes...

Page 32: ...es Corporation 14912 Heritagecrest Way Bluffdale Utah 84065 4818 U S A 1 801 233 8992 1 800 330 0891 North America 1 801 233 8995 Fax www listentech com 2008 Listen Technologies Corporation All Rights...

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