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INTEK H 520 PLUS CB Radio | Radioaficion Ham Radio

INTEK H 520 PLUS CB Radio

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CB Radio INTEK H 520 PLUS Service Manual

SPECIFICATIONS

1. GENERAL

Channels………………………...……………………………………………………................... 400 Ch AM/FM 4W
Frequency Range………………………………...…………………………..……………......25.615 to 30.105 MHz
FrequencyControl………………………………………………………………………………..…………..…….……PLL
Operating Temperature Range……………………………………..……..……………………………-10° /  +50°C
DC Input Voltage…………………………………………………....………………………..………....9.0 V DC ±15%
Size………………………………………………………………….……..………..….…140(L) X 60(W) X 30(H) mm
Weight………………………………………………………………………………..…………..……...……..……0.50 kg


2. RECEIVER
Receiving System……………………………….…………………………....Dual Conversion Super Heterodyne
Intermediate Frequency…………………………………………...…….…1st
IF: 10.695 MHz, 2nd
IF: 455 MHZ
Sensitivity……………………………………….…..............................….0.5 µV for 20 db SINAD in FM mode
Audio Distortion……………………………………………………….….……..…………….Less Than 8% @ 1 KHz
Image Rejection……………………………………….…………………..………………………………………...60 dB
Adjacent Channel Rejection………………………………………….…………………………………………....60 dB
Signal/ Noise Ratio…………………………….…………………………….…………………………………..….45 dB
Current Drain at standby……………………….…………………………………………………………..……..60 mA


3. TRANSMITTER
Output Power…………………………………………………………………………………..……...….4W @ 9.0 V DC
Modulation………………………………………………………………..………….…...………FM: 1.6 KHz ±0.2 KHz
Frequency response…………………………………………….…................................From 300 Hz to 3.0 KHz
Output impedance………………………………………………………………………………RF 50 ohm Unbalance
Signal/ Noise Ratio…………………………………………………………………………………..………..40 dB MIN
Current Drain…………………………………………………………………………………………….….…….1300 mA

INTEK H 520 PLUS Service Manual

 

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Table of Contents

Specifications            3
Test and Alignment Procedure         8
Block Diagram           13
Schematic Diagram           14
Printed Circuit Board           23
Channel Frequency Charts          25
Parts List            40
Semiconductor Voltage Chart         45
Semiconductor Lead Assignment and Block Diagram      53
Exploded View Parts List          56
Exploded View           57

INTEK H 520 PLUS Service Manual

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