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INTEK M-550 Power Service Manual | Radioaficion Ham Radio

INTEK M-550 Power Service Manual

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INTEK  M-550 Power Service Manual

INTEK  M-550 Power Service Manual


M-550 Power SPECIFICATIONS


1. GENERAL
Channels………………………...…………………………….................. 400 Ch AM/FM 4W
Frequency Range………………………………...………………   ..25.315 to 29.105 MHz
FrequencyControl……………………………………………………..…………..………PLL
Operating Temperature Range……………………..…………………………-10° /  +55°C
DC Input Voltage…………………………...……………………………....13.2 V DC ±15%
Size………………………………………….……………….…180(L) X 50(H) X 153(D) mm
Weight………………………………………………………………..……...…………0.850 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
ImageRejection………………………………………………………………………...65 dB
Adjacent ChannelRejection…………………………………………………………....65 dB
Signal/ Noise Ratio…………………………………………………………………..….45 dB
Current Drain at standby……………………………………………………………..325 mA

3. TRANSMITTER
Output Power……………………………………………………..……...….4W @ 13.2 V DC
Modulation……………………………………………………...………FM: 1.6 KHz ±0.2 KHz
Frequency response………………………………………………...From 300 Hz to 2.5 KHz
Output impedance…………………………………..…………………RF 50 ohm Unbalance
Signal/ Noise Ratio…………………………………………………………………..40 dB MIN
Current Drain…………………………………………………………………….…….1300 mA

SERVICE MANUAL Table of Contents

Specifications ................................3
Test and Alignment Procedure ........4
Block Diagram  ..............................14
Schematic Diagram.........................15
Printed Circuit Board.......................24
Channel Frequency Charts...............27
Parts List......................................47
Semiconductor Voltage Chart..........56
Semiconductor Lead Assignment and Block Diagram.....62
Exploded View Parts List
Exploded View

Download [PDF] INTEK M-550 Power Service Manual

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