Summary of Contents for BURK Technology RX-4
- Page 1 RX-4 USER’S MANUAL May 28, 1997 Version 1.01 BURK Technology 7 Beaver Brook Road Littleton , MA 01460...
- Page 2 RX-4 User’s Manual -- Version 1.01 Technology...
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Page 3: Table Of Contents
Technology RX-4 User’s Manual -- Version 1.01 RX-4 USER’S MANUAL Contents INTRODUCTION......................1 PRODUCT DESCRIPTION ..................2 RX-4 Features and Overview....................2 Specifications ..........................3 RX-4 Front Panel ........................4 RX-4 Back Panel ........................6 INSTALLATION AND CONFIGURATION .............. 8 Physical Installation........................8 Antenna Installation .......................8 Connecting The Audio Outputs....................9... - Page 4 RX-4 User’s Manual -- Version 1.01 Technology...
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Page 5: Introduction
Emergency Alert Systems, in particular the Burk Technology EúAúS unit. The first part of this User’s Manual presents an overall description of the RX-4, featuring notes and illustrations on the arrangement and functions of the front and back panel components, plus a set of technical specifications (see “Product Description,”... -
Page 6: Product Description
Emergency Alert System (EAS) applications. Though it has been designed, along with the LX-4 audio switch, to be a companion to the Burk EúAúS unit, the RX-4 will provide superior performance with any EAS equipment. -
Page 7: Specifications
Technology RX-4 User’s Manual -- Version 1.01 Specifications General Receivers 4 interchangeable modules in any combination of AM, FM , & NOAA Standard configuration is 1 / AM, 2 / FM, & 1 / WX Monitor Amp 0.5W audio amp with built-in speaker... -
Page 8: Front Panel
RX-4 Front Panel Receiver Module #1 (AM) Receiver Module #2 (FM) Receiver Module #3 (FM) Receiver Module #4 (WX) Monitor Section Cover ⇐ Plates Removed NOTE: The type, number, and positions of the various receiver modules represent the standard configuration. Your unit may have been ordered with a different modular configuration; if so, disregard the illustrated left-to-right ordering of the individual receiver units and reference them instead by type. - Page 9 Functions / Features Receiver Receiver Receiver Receiver Monitor Module #1 Module #2 Module #3 Module #4 Section (AM) (FM) (FM) (WX) Signal Indicator Lights when module is receiving signal Output Level Opening for adjusting output audio pot without removing Adjustment cover plate;...
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Page 10: Back Panel
RX-4 Back Panel Receiver #4 (WX) Receiver #3 (FM) Receiver #2 (FM) Receiver #1 (AM) Description / Connections Power Connection AC input 115 VAC; EIA-type Receiver #4 (WX) [Weather Radio] Loop-Through 2 pins of Combicon 5-pin female connector; IN and OUT; provides chaining to other receivers for hot standby Audio Output 3 pins of Combicon female connector;... - Page 11 Antenna Connector Female F-type connector; to ferrite core antenna via male F-type connector...
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Page 12: Installation And Configuration
EúAúS. Depending upon the overall configuration and location of your rack, the difference in depth may make access to the RX-4 rear panel difficult once it’s mounted. If this is the case, you may need to pre- wire the antenna, output, and loop-through connectors (see following sections, pp. 8 and 10), pass them through the rear of the rack, and connect them up while holding the RX-4 in front of the rack. -
Page 13: Connecting The Audio Outputs
Please note further that if it is desirable to monitor more than four audio sources, a second RX-4 unit can be connected to any unused EúAúS inputs. (For details on the EúAúS audio inputs and their configuration, see the Eú... -
Page 14: Making Connections For The Loop-Through (Hot Standby) Feature
Combicons until they admit the appropriate stripped wire; then tighten the screws. Install the cable connectors, with the mating plug to the RX-4 at one end of the cable, the EúAúS mating plug at the other (note that the latter is a 6-pin dual connector, each one carrying two channels, and the RX-4 outputs can be attached in pairs). -
Page 15: Connecting The Receivers For Hot Standby
RX-4 User’s Manual -- Version 1.01 Please note that it is also possible to loop a hot standby connector, or even daisy-chain, from one RX-4 unit to another (any number of them, in fact). The same considerations apply between units as within units: the Loop OUT of the standby module goes to the Loop IN of the primary module (except for the AM receiver, where the Loop IN is not functional). - Page 16 LEDs -- see “RX-4 Front Panel,” p. 4. (If there are no LEDs activated, it may be because the monitor selection switch is OFF -- press it once, and the...
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Page 18: Tuning And Adjustment
The following sections discuss the frequency settings for each of the receiver modules in turn. If you are setting up your RX-4 for the first time, you may wish to remove all the cover plates at once and tune all the receivers sequentially. -
Page 19: Am Receiver Tuning
Once the setting is made, compare the switch positions against the chart once more to assure correctness. Then press the Monitor Select Switch (see “RX-4 Front Panel,” p. 4) until it indicates Receiver #1 (or the appropriate receiver number in a non-standard configuration), adjust the volume control for audibility, and monitor until the station ID is confirmed. - Page 20 RX-4 User’s Manual -- Version 1.01 Technology AM Tuning Chart Switch Switch Switch Frequency Frequency Frequency Settings Settings Settings in KHz in KHz in KHz 0001100101 0010001101 1350 0010110101 0001100110 0010001110 1360 0010110110 0001100111 0010001111 1370 0010110111 0001101000 0010010000 1380...
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Page 21: Fm Receiver Tuning
Technology RX-4 User’s Manual -- Version 1.01 Snap the cover plate back in place and secure it with the two Phillips-head screws. Continue with the FM or WX tuning procedures in the following sections if you are intending to tune those components;... - Page 22 When you have set both left- and right-hand banks, double-check the switch positions against the chart once more. Then press the Monitor Select Switch (see “RX-4 Front Panel,” p. 4) until it indicates Receiver #2 or #3, whichever module you are currently tuning (or the appropriate receiver number in a non-standard configuration), adjust the volume control for audibility, and monitor until the station ID is confirmed.
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Page 23: Wx Receiver Tuning
When setting is complete, check that only the desired channel switch is in the DOWN position. Then press the Monitor Select Switch (see “RX-4 Front Panel,” p. 4) until it indicates Receiver #4 (or the appropriate receiver number in a non-standard configuration), adjust the volume control for audibility, and monitor until the channel ID is confirmed. - Page 24 RX-4 User’s Manual -- Version 1.01 Technology WX Tuning Chart Switch Settings Switch Settings NOAA Frequency NOAA Frequency Channel Channel in MHz in MHz 1000000 162.550 0000010 162.500 0100000 162.400 0000001 162.525 0010000 162.475 0001000 Switch Values: DOWN = Select 162.425...
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Page 25: Adjusting Audio Output Levels
Level:| ESC=Abort ENT=Select 2. Determine which of the two or more audio inputs from the RX-4 to adjust first. Then use the UP (5) and DOWN (6) keys on the EúAúS Control Key cluster to increment or decrement (respectively) the channel setting, until the number of that channel appears in the bracketed field. -
Page 26: Monitor Selection And Volume Adjustment
RX-4 User’s Manual -- Version 1.01 Technology 3. Now turn your attention to the RX-4 front panel, and the receiver module which is the source for the EúAúS channel currently being monitored. Locate the adjustment access in the cover plate for that receiver, a 0.1”-diameter opening labeled “Level,”... -
Page 27: Technical Support
If it is necessary to monitor different sources from each unit, use the front-panel volume control on either the RX-4 or the EúAúS to eliminate whichever source audio is unwanted in the studio. -
Page 28: Appendix: Rx-4 Schematics
RX-4 User’s Manual -- Version 1.01 Technology APPENDIX: RX-4 SCHEMATICS... - Page 29 Technology RX-4 User’s Manual -- Version 1.01...
- Page 30 RX-4 User’s Manual -- Version 1.01 Technology RX-4 WX Receiver RX-4 AM Receiver RX-4 Monitor Amplifier RX-4 FM Receiver...
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