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TABLE OF CONTENTS

CONTENTS ............................................................................................................................................................................... 1

1. INTRODUCTION............................................................................................................................................................... 60

2. OPRATION FEATURES   .................................................................................................................................................  3

3. TECHNICAL SPECIFICATIONS .................................................................................................................................. 61

1)

 

GENERAL ..........................................................................................................................................................................4

2)

 

TRANSMITTER.................................................................................................................................................................4

3) RECEIVER .........................................................................................................................................................................4

4. CIRCUIT DESCRIPTION.................................................................................................................................................. 5

1) PHASE-LOCK LOOP (PLL) CIRCUIT..........................................................................................................................

 

5

2) TRANSMITTER ................................................................................................................................................................5
3) RECEIVER .......................................................................................................................................................................62

5. ALIGNMENT PROCEDURE ............................................................................................................................................ 6

1)

 

MEASUREMENT CONDITION .....................................................................................................................................6

2) DISASSEMBLING THE UNIT......................................................................................................................................63
3) TRANSMITTER CIRCUIT ADJUSTMENT..................................................................................................................7
4) RECEIVER CIRCUIT ADJUSTMENT.........................................................................................................................64

Summary of Contents for SPX-200

Page 1: ...stablish compliance with the technical standards of the applicable rule part s This includes but is not limited to the following items required under FCC Part 2 1033 c 1 FCC Identifier 2 A copy of the installation and operating instructions 3 Type of emission 4 Frequency range 5 Range of operating power and means to provide variation in operating power 6 Maximum power rating 7 Tune up procedure 8 ...

Page 2: ...58 SPX 200 Preliminary MAINTENANCE REPAIR OPERATING MANUAL ...

Page 3: ...ECIFICATIONS 61 1 GENERAL 4 2 TRANSMITTER 4 3 RECEIVER 4 4 CIRCUIT DESCRIPTION 5 1 PHASE LOCK LOOP PLL CIRCUIT 5 2 TRANSMITTER 5 3 RECEIVER 62 5 ALIGNMENT PROCEDURE 6 1 MEASUREMENT CONDITION 6 2 DISASSEMBLING THE UNIT 63 3 TRANSMITTER CIRCUIT ADJUSTMENT 7 4 RECEIVER CIRCUIT ADJUSTMENT 64 ...

Page 4: ...ensive Land Mobile Radios 2 OPERATION FEATURES 2 1 Physical Layout 2 2 Panel controls Power switch Volume Control Turn clockwise to switch ON the transceiver Rotate to adjust the volume To switch OFF the transceiver turn counterclockwise fully Emergency button Pressing this key to enter the emergency mode Antenna connector Connect the supplied antenna here SMA connector TX RX Battery Indicator LED...

Page 5: ...kHz 5 Power Supply DC 7 5V Ni Mh Rechargeable Pack 6 Current Drain High Transmitter 5W 2000mA Receiver 0 5W 350mA Standby 45mA Standby PSC mode 40mA 7 Battery Life 10hrs Ni Mh Rechargeable Pack At 5 5 90 transmit receive standby cycles 8 Operating Temperature 30 to 50 9 Dimension 110 H x 50 5 W x 37 5 D mm 10 Weight W Batteries 320g 1350mAH Rechargeable battery 2 TRANSMITTER 1 Power Output High 5W...

Page 6: ...kHz and eliminates hamonics above 3 kHz The Pre emphasized audio signal is applied U8 pin 22 to adjust maximum frequency deviation by software VCO AND AMPLIFIER The VCO signal output is amplified by Q101 and then fed to power module U405 POWER AMPLIFIER CIRCUIT U405 is provided approximately 7 5V DC power source RF power output is adjusted by software DA TX power to 1W 5W Signals from U405 is supp...

Page 7: ... SPX 200 VHF transceiver under the following reference environment conditions Temperature 25 C 77 F Relative Humidity 65 Power Supply Voltage 7 5VDC 5 TEST EQUIPMENT TOOLS REQUIRED The following list of equipment is recommended for use in setting up the radio properly Please ensure the test equipment are calibrated according to the manufacturer s instructions Frequency counter more than 100MHz 100...

Page 8: ...ible Tone Deviation Set radio to transmit on M146 125Hz with CTCSS code 01 67Hz and no audio modulation It is adjustable by software for 0 45KHz deviation Transmitter Deviation Limit Set radio to transmit on 146 125MHz with CTCSS code 01 67Hz and audio modulation At the external microphone input inject 1KHz tone at 20dBm It is adjustable by software for 2 3KHz deviation 4 RECEIVER CIRCUIT ADJUSTME...

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