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NHRC NHRC-4, Installation And Setup Gude

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NHRC-4  

Installation and 

Setup Guide 

 

 

 

Hardware Version:  Rev. D. 

Guide Version:  2005-Nov-07 

Summary of Contents for NHRC-4

Page 1: ...NHRC 4 Installation and Setup Guide Hardware Version Rev D Guide Version 2005 Nov 07...

Page 2: ...ay be used or reproduced by any means or for any purpose without the expressed written consent of NHRC LLC No part of this document should be considered to be specifications for the proper or correct...

Page 3: ...passages that are not clearly understandable we would like to hear about it Please send your comments to software support nhrc net Support for the controller is available by email or telephone Please...

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Page 5: ...es 6 2 4 USING A NHRC DAD WITH THE NHRC 4 6 2 5 USING THE DIGITAL OUTPUT 6 2 6 THE LED STATUS INDICATORS 7 2 7 ADJUSTING THE AUDIO LEVELS 7 3 APPENDICES 9 3 1 TERMINOLOGY AND ABBREVIATIONS 9 4 CIRCUIT...

Page 6: ...d a 6 pin 0 100 header for an external TS 64 CTCSS encoder decoder for the primary radio In addition it has two 4 pin 0 100 connectors to support optional NHRC DAD digital audio delays for both radio...

Page 7: ...the transistor to a source of positive voltage the collector to the controller s CAS terminal and the base to the active low signal through the 4 7K resistor Transmitter audio can be fed directly into...

Page 8: ...tains the radio interface signals for the Secondary radio J2 Secondary Radio Port Connections J2 Pin Use 1 CAS active high 2 PTT active low 3 CTCSS detect active high 4 Receiver audio 5 T transmitter...

Page 9: ...ge of this nature is not covered by the NHRC Limited Warranty The TS 32 and the TS 64 both have a high pass filter to remove the CTCSS tone from the repeated audio By removing jumper JP1 the controlle...

Page 10: ...he controller will not pass audio It is strongly recommended that the CTCSS filter be used as described above if both CTCSS encode decode and the audio delay are used The repeater controller needs to...

Page 11: ...ed by yellow LED D5 Note If VR4 is set too high a crackling noise may be heard in the transmitted audio during the hang time Reduce the level set by VR4 until this noise goes away Any repeated audio l...

Page 12: ...milarly to VR5 Enable the secondary receiver and adjust VR1 for reasonable deviation on the enabled transmitters when a signal is received on the secondary receiver Adjust VR6 the beep level to set th...

Page 13: ...als commonly using Morse Code The term CW refers to the radio emission type while Morse Code refers to the signaling type used Typically they are incorrectly used interchangeably Digital Audio Delay D...

Page 14: ...ve audio PTT and CAS signals for the radio to the controller J3 TS 32 64 Interfaces a Communications Specialists TS 64 to the controller for CTCSS detection J4 DELAY Connects power and audio signals f...

Page 15: ...for the NHRC 4 Repeater Controller NHRC DAD Interface Connectors Main Repeater Remote Base CommSpec TS 32 64 Interface Connector Remote Base Connector Main Repeater Connector CommSpec TS 32 64 Audio...

Page 16: ...NHRC 4 User Guide 5 Schematics The following two pages the schematic diagram for the Revision C Version of the NHRC 4 Repeater Controller Page 12 Copyright 2001 2005 NHRC LLC All Rights Reserved...

Page 17: ...T RB _PTT_EN CAS PTT RX_A UDIO R X_ AUD IO RB_P L_D EC RB_C AS RB_PTT R X_ AUD IO R X_AUD IO PTT _EN PTT DOUT_EN DOUT DOUT Q3 STD Q4 Q2 PIC CLK Q1 DISC _AUDIO DISC_A UD IO TX_A UDIO RB_TX_AUD IO RB_DI...

Page 18: ...NSE INSTA LL C4 AND CHANGE R5 TO 5 10K NHRC 4 Audio D1 NHRC 4 Repeater Controller Audio 415 Fourth R ange Road Pembroke NH 03275 603 485 2248 B 2 2 W ednesday Octo ber 26 2005 http www nhrc net Title...

Page 19: ...CFR 25JB 10K 10KQBK ND R26 R29 R30 R33 R36 R40 19 3 R4 R10 R19 100 100 W 5 Carbon Film Resistor YES Yageo CFR 25JB 100R 100QBK ND 20 11 R5 R6 R14 R15 R20 R21 100K 100K W 5 Carbon Film Resistor YES Yag...

Page 20: ...sequent times is completely at the discretion of NHRC LLC and may require the complete return of the kit In no case will NHRC LLC be liable for products damaged by improper wiring including but not li...

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