Nikon CM200 manuel d'utilisation

Radius CM20 0 ™ / CM30 0 ™ & Mot or ola PM40 0 ™ Commercial Ser ies Mobile Radio Basic Service Manual MO TOR OLA, the St yliz ed M Logo, and Radius are registered in the US Patent & T rademark Of fice. All other product or ser vice names are the property of their respective owners. © 2004 Motorola, Inc. All rights reserved. Printed i[...]

[...]

i CM200/CM300/PM400 Radios Basic Service Manual 6802966C15-A Issue: August, 2004[...]

ii Forew or d This manual is intended f or use by service technician s f amiliar with similar types of equ ipment. It contains ser vice inf or mation required f or the equipment described and is cur rent as of the printing date. Changes which occur after the printing date ma y be incor porated b y a complete Manual re vision or alter natively as ad[...]

iii T able of Content s Foreword .............. ................................. .............................. ............... ........................... .. ii Computer Software Copyrights ........ ................. ................................................. ............. ii Document Copyrights ........... ................................[...]

iv 7.3 Control Heads Assembly ........ ............................................. .............. ........ 2-13 7.4 Control Head Fitting .... .......................................... ............................ ........ 2-13 7.5 Option Board Installati on ........... .............. .......................................... ........ 2-14 8.0 R[...]

v 1.9 Peripherals ............... ............................... .................................................... 6-4 2.0 Accessory Connector Pin Function ............... ............................................. .......... 6-5 3.0 Microphone Connector Pin Function .................................................................... 6-6 Ch[...]

vi THIS P AGE INTENTIO NALL Y LEFT BLANK[...]

vii SAFETY INFORMA TION Product Safety and RF Exposure Compliance A TTENTION! This radio is restricted t o occup ational use onl y to sat isfy FCC RF energy exposure requireme nt s . Before using this product, re ad the RF energy awar eness information and operating instructions in the Product Safety and RF Exposure booklet enclosed with your rad i[...]

viii THIS PAGE IS INTENTIONALLY BLANK[...]

Chapter 1 INTR ODUCTION 1.0 Scope of Manual This manual is intended fo r use b y ser vice technicians familiar with similar types of equipment. It contains service information required f or the equipme nt described and is current as of the printing date . Changes which occur after th e printing date ma y be incor porated b y a complete Man ual re v[...]

1-2 INTRODUCTI ON 3.0 Replacement P ar ts Or deri ng 3.1 Basic Or dering Inf ormation When ordering replacement par ts or equipment inf or mation, the complete ide ntification n umb er should be included. This a pplied to all components , kits, and chassis . If the component p ar t number is not kno w n, the order should inclu de the numbe r of the[...]

Radio Model Information 1-3 3.6 P ar ts Identification Radio Products and Ser vices Division (RPS D)* (United Stat es and Cana da) 1-800-422-4 210, menu 3 * The Radio Products and Ser vices Division (RPSD ) was f o r merly k nown as the Access ories an d After m ar ket Division (AAD) 4.0 Radio Model Information The model n umber and serial num ber [...]

1-4 INTRODUCTI ON THIS P AGE INTENTIO NALL Y LEFT BLANK[...]

Chapter 2 MAINTENANCE 1.0 Introduction This chapter provides det ails about the following: • Preventive maintenance (insp ection and cleaning). • Safe handling of CMOS and LDMOS devices. • Disassembly an d reassembly of the ra dio. • Repair proce dures and techniques. • Installation of Option Boards. 2.0 Preventive Maintenance The radios [...]

2-2 MAINTENANCE Cleaning Internal Circuit Boards an d Component s Isopropyl alcohol (100%) may be a pplied with a stiff, non-metallic, shor t-bristled brush to dislodge embedded or caked materials located in hard-to-reach areas. The brus h stroke should direct the dislodged material ou t and away from the inside of the radio. Make sure that contro [...]

Repair Procedures and Techniq ues — General 2-3 4.0 Rep air Procedures an d T echniques — General Part s Replacement and Substitution When damaged p arts are replaced , identical pa rts sh ould be used. If the identical repl acement part is not locally available, check the parts list for the proper Motorola part nu mber and or der the part from[...]

2-4 MAINTENANCE 6.0 Radio Disassembly - Det ailed The procedure to re move and replace a Co ntrol Head, T op Cover or T ransceiver Bo ard is similar for all models of radio. A typical procedure is th erefore shown followed by spe cific disasse mbly procedures for Control He ads on radio models without a display and radio mo dels fitted with a displ[...]

Radio Disassembly - Detailed 2-5 Figure 2- 2 Control Head Removal 3. T o free the control head, disconnect the flat cable from the chassis assemb ly See Figure 2-3. Figure 2- 3 Flat Cable Removal Main PCB Connector[...]

2-6 MAINTENANCE 6.2 T op Cover Removal 1. Place the radio in a vertical position as shown in Figure 2-4. Figure 2-4 T op Cover Removal (Chassis V e rtical). 2. Insert the flat screw driver near th e ‘T’ and pus h the plastic cover up until it po ps over the ‘T’ mount boss. Perform the same function on the ‘T’ location on the other side [...]

Radio Disassembly - Detailed 2-7 6.3 Main Shield Removal 1. Insert the screw driver in the ga p between the main shield and chassis (spe aker cutout area) and push the sh ield up. See Figure 2-6. 2. Lift the cover from the chassis. Figure 2-6 Main Shield Removal 6.4 P A Shield and DC Cable Removal 1. Remove the three screws that attach the P A shie[...]

2-8 MAINTENANCE Figure 2-8 P A Shield and DC Cable Removal (for High Power Model s) 6.5 P A Clip and Main PCB Remo val (for Low Power Models) 1. Remove the screw that attaches the P A clip to the chassis. See Figure 2-9. 2. Remove the P A clip. 3. Remove all the screws that f ix the PCB to the chassis. 4. Loosen the M2 screw (about 3 to 4 turns) on[...]

Radio Disassembly - Detailed 2-9 6.6 Main PCB Removal (for High Power Models) 1. Remove the P A screws. See Figure 2-10. 2. Remove all the screws that fix the PCB to the chassis. 3. Loosen the M2 screw (about 3 to 4 turns) on the RF connector using hex tool (Part number: 668 0334F39). 4. Loosening this screw , enables you to unscrew the RF connecto[...]

2-10 MAINTENANCE 6.7 Disassembly of C ontrol Head - CM200 1. Disconnect the flat cable from the Control Head PCB conn ector . See Figure 2-1 1. 2. Remove the PCB from the keypad assembly . 3. Remo ve the LENs f rom the ru bber keypad assem bly . 4. Remove the keypad assembly from the contr ol head housing by lifting it up from th e face side. 5. Di[...]

Radio Disassembly - Detailed 2-11 6.8 Disassembly of Contro l Heads - CM300/PM400 1. Disconnect the flat cable from the Cont rol Head PCB connector . See Figure 2- 12. 2. Remove t he PCB from t he keypad assembly . 3. Remove the LCD assembly from the rubber keypad as sembly . 4. Remove th e keypad assembly from the control he ad housing by lifting [...]

2-12 MAINTENANCE 7.0 Radio Assembly 7.1 Chassis Assembly (for Low Power Models) 1. Ensure that the Fuji Poly Thermal Pad is on the sm all pedestal loca ted on the P A compar tment of the chassis. 2. V erify that the potentiometer is soldered p roperly . 3. T ake the main PCB a nd smear therma l paste on LDMOS Power Amplifier , TO220, and Au dio Pow[...]

Radio Assembly 2-13 10. T ake the main shield and place it on the chassi s. Check that the corner s of the main shield are seated properly on the corner suppor ts. 1 1. T ake the main seal and place it inside the top co ver . V erify that the main seal is seated prop- erly on its placement rib s and all around the groove. 12. T ake the upper cover [...]

2-14 MAINTENANCE 7.5 Option Board Inst allation 1. Follow the disassembly pro cedure in parag raphs 6.1 to 6.3. 2. Remo ve and discard the 4xM 3 screws holding the ma in pcb and replace with the 4 spacers provided. T orque the space rs to 10 lbs. 3. Insert the jumper flex into the connector on the option board. Notice the orientation of the right-a[...]

Radio Exploded Mechanical Views and Parts Li sts 2-15 8.0 Radio Exploded Mechanical V iews and Part s Lists 8.1 Radio Assembly - 1-25 W Models Figure 2-14 Radio Assembly - 1-25 W Models T able 2- 1 Radio Assembly Par ts List - 1-25 W Models Item No. Description Part Number 1 Upper Cover 1589224U01 2 Main Seal 3289329U01 3 Bumper 7587509V06 4 Main S[...]

2-16 MAINTENANCE 8.2 Radio Assembly - 25-40 W/25-45 W Models Figure 2-15 Radio Assembly - 25-40 W/25-45 W Models T able 2-2 Radio Assembly Part s List - 25-40 W/25-45 W Models Item No. Description Part Number 1 Upper Cover 1589224U01 2 Main Seal 3289329U01 3 Main Shield 2689338U01 4 P A Shield 2689337U01 5 Screw 0310943J12 6 VHF Main PCB (45W) UHF [...]

Radio Exploded Mechanical Views and Parts Li sts 2-17 8.3 Control Head - CM200 Figure 2-16 Control Head CM200 T able 2-3 Control Head CM200 Part s List Item no Description Part No 1 Control Head PCB 8488998U01 2 Lens 6189338U01 3 Keypad 7589330U01 4 Control Head Pla stic 1589332U01 5 Knob S pring (part of knob - item 6) 6 Knob, V olume 3689331U02 7[...]

2-18 MAI NTENANCE 8 .4 Co ntrol H ead - CM300/P M400 Figur e 2 -1 7 Con trol Head - CM300/PM400 T able 2-4 Control Head CM300/PM400 Parts List Item no Descr iption Part No. 1 Contr ol Hea d PCB 8489714U01 2 Ligh t Guide 6189624U01 3 Elas tomeric Co nnector 2802619S03 4 LCD Hol der 0789623U01 5 LCD 7202421H33 6 Keyp ad 7589340U01 7 Sp e a k e r 5005[...]

Service Aids 2-19 9.0 Service Aids T able 2-5 lists the service aids recommended for worki ng on the radio. While all of these items ar e available from Motorola, most ar e standard work shop equipment item s, and any equivalen t item capable o f the same perform ance may be substitu ted for the item listed. T able 2- 5 Service Aids Motorola Part N[...]

2-20 MAINTENANCE 10.0 T est Equipment T able 2-6 lists test equipm ent required to service the radio and other two-way radios . T able 2-6 Recommended T est Equipment Motorola Part No. Description Characteristics Application R2000, R2600 R2400, or R2001 with trunking option for Pri- vacy Plus™ and Smartnet Sys- tems™ † Service Monitor This mo[...]

Programming/Test Cable - RKN4083_ 2-21 1 1.0 Programming/T est Cable - RKN4083_ Figure 2-18 Programming/T est Cable Figure 2-19 Pin Configuration of RKN4083 P1 (Male) T o Radio T est Set J2 (Female) T o Mobile Radio Accessory Connector 1 13 13 1 14 25 25 14 J1 (Female) T o RIB RLN4008 FL0830308O 1000 50mm Cable + _ 1000 50mm Cable + _ 17 18 1 2 19 [...]

2-22 MAINTENANCE 12.0 Adapter Cable - FKN81 13_ Figure 2-20 Pin Configuration of FKN81 13 16-pin Female T o Radio Accessory Connector SPEAKER - EXTERNAL MIC EXT . PTT FLA T TX A UDIO SENSITIVITY BUS+ (FOR CPS AND FLASHING) GND SWITCHED BA TTERY VOL T AGE SPEAKER + 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 SPEAKER - EXTERNAL MIC EXT .PTT EXT ALARM FLA [...]

Chapter 3 TRANSCEIVER PERFORMANCE TESTING 1.0 General These radios meet published specifications throu gh their manufacturing pr ocess by utilizing high- accuracy laboratory-qua lity test equipment. The recomme nded field service equipment appr oaches the accuracy of the manufacturin g equipment wi th few exceptions. This accuracy must be maintaine[...]

3-2 TRANSCEIVER PERFO RMANCE TESTING 3.0 RF T est Mode When the radio is operatin g in its nor mal environment, it is not po ssible to test all individual aspect s of the transmitter and receiver performance. Th er efore a special “test mode” is used to allow the service techn ician to perform ce rtain functional te sts on the product. A contro[...]

RF Test Mode 3-3 T abl e 3-3 T est Channel S pacing Number of Beeps Channel Sp acin g 1 25 kHz 2 12.5 kHz 3 20 kHz T able 3-4 T est Frequencies Channel Display T est Channel VHF (136-162 MHz) VHF (146-174 MHz) UHF (438-470 MHz) UHF (465-495 MHz) 1 Low P ower 8 High P ower TX#1 or #8 RX#1 or #8 136.12 5 146.025 438.025 46 5.225 2 Low P ower 9 High P[...]

3-4 TRANSCEIVER PERFO RMANCE TESTING * See T able 3-4. Vo i c e Modulation Mode: PWR MON 4th channel test frequency* atten to -70, input to RF In/ Out Monitor: DVM, AC V olts Set 1kHz Mod Out level for 800mV rms at test set, 800mV rms at AC/DC tes t set jack As above As above, meter selector to mic Deviation: 2.5 kHz Max. (12.5 kHz Ch. S p). 4 kHz [...]

RF Test Mode 3-5 T able 3-6 Receiver Performance Checks * See T ables 3-4. T est Name Communications Analyzer Radio T est Set Comment Reference Frequency Mode: PWR MON 4th channe l test frequ ency* Monitor: Freq uency error Input at RF In/Out TEST MODE, T est Channel 4 carrier squelch output at antenna PTT to continuous (during the performance chec[...]

3-6 TRANSCEIVER PERFO RMANCE TESTING THIS P AGE INTENTIO NALL Y LEFT BLANK[...]

Chapter 4 RADIO TUNING AND PROGRAMMING 1.0 Introduction This chapter provides an overview of the Cu stom er Programming So ftware ( CPS) and tuner program designed fo r use in a Windows 98/ME/NT/2000 environment. T able 4-1 Software Installation Ki t s Radio T uning Setup 2.0 CPS Programming/Flashing Setup with RIB The CPS programming setup, shown [...]

4-2 RADIO TUNING AND PROGRAMMING 3.0 CPS Programming/ Flashing Setup Ribless The CPS programming setup, shown in Figure 4-2 is used to program and flash th e radio using the Radio front T elc o connecto r . Figure 4-2 CPS Programming /Flashing Setup Cable with Inter nal RIB 4.0 CPS Programming Setup wi th RIB (with T elco Connector) The CPS program[...]

CPS Programming Setup with RIB (Accessory Connector) 4-3 5.0 CPS Programming Setup wi th RIB (Accessory Connector) The CPS progr amming setup, shown in Fig ure 4-4 is used to program the ra dio using the Radio rear accessory connector . Figure 4- 4 CPS Programming Setup Cable with RIB and Rear Adapter Cable 6.0 CPS Programming Setup with RIB The CP[...]

4-4 RADIO TUNING AND PROGRAMMING 7.0 Radio T uning Setup A personal computer (PC), Windows 95/98/NT and a tuner program are requir ed to tune the radio. T o perform the tuning procedures, the radio must be connected to th e PC, radio in terface box (RIB), and test equipment se tup as shown in Figure 4-6. Figure 4- 6 Radio T uning T est Equipment Se[...]

Chapter 5 POWER UP SELF-TEST 1.0 Error Codes T urning on the radio starts a self-test routine th at checks the RAM, ROM checksum, EEPROM hardware, an d EEPROM checksum. If these checks are successful, the radio genera tes two high- pitched self-test pass tones. If the self-test is not successful, one lo w-pitched tone is heard. Radios with displays[...]

5-2 POWER UP SELF-TEST THIS P AGE INTENTIO NALL Y LEFT BLANK[...]

Chapter 6 ACCESSORIES & CONNECT OR PIN FUNCTIONS 1.0 Accessories T o order , refer to Chapter 1 (paragr aph 3.0 - ‘Replacement Part s Ordering’) of this manual. 1.1 Antennas VHF HAD4006_ 136 - 144 MHz, 1/4 W ave Roof Mount HAD4007_ 144 - 150.8 MHz, 1/4 W ave Roof Mount HAD4008_ 150.8 - 162 MHz, 1/4 W ave Roof Mount HAD4009_ 162 - 174 MHz, 1[...]

6-2 ACCESSORIES & CONNECT OR PIN FUNCTIONS 1.2 Audio 1.3 Alarms and Accessories HMN3596_ Compact Palm Microp hone (S td. Mic) HMN1035_ Heavy Duty Microphone RMN5029_ Enhanced Ke ypad Microphone RMN5018_ Mag One Micro phone (Low Cost) (6 months wa rranty only) RMN5019_ Mag One Keypa d Microphone (Low Cost) (6 months warranty on ly) AAREX4617_ T [...]

Accessories 6-3 1.4 Control St ation 1.5 Public Address 1.6 Cables 1.7 Mounting HPN4002_ Desktop Power Supply 1- 25 W HPN4001_ Desktop Power Sup ply 25-60 W HMN3000_ Black Desk Microphone RLN5390_ Desktop T ray with S peaker RLN5391_ Desktop Tray without S peake r RLN5492 Low Power Control S tation Kit (1-25 W) (includes power supply , desktop tray[...]

6-4 ACCESSORIES & CONNECT OR PIN FUNCTIONS 1.8 Dat a - CES Wireless T echnologies 1.9 Peripherals RDN7364_ Base Modem RDN7367_ Mobile Display T e rminal with GPS RDN7368_ Mobile Display T erminal RDN7369_ S tand Alone Modem with GPS RDN7370_ Interface Cable, 3 f t RDN7376_ Inter face Cable, 15 ft RDN7372_ Fixed Mount GPS Active Antenna RDN7373_[...]

Accessory Connector Pin Function 6-5 2.0 Accessory Connector Pin Function Pin Function Description 1 External S peaker (-) Connect external 8 or 4 ohms speaker to pin 1 and 16. Caution: Bridge-type outpu t. Neither pin 1 or 16 is grounded. 2 External Mic Audio Input impedence :500 ohms 80 mV rms at 1 kHz for 60% deviation. This path is enabled when[...]

6-6 ACCESSORIES & CONNECT OR PIN FUNCTIONS THIS P AGE INTENTIO NALL Y LEFT BLANK 3.0 Microphone Connector Pin Function Pin Function Description 1 9.3V Regulated 9.3V Supply (50mA max.) 2B o o t / D T M F Keypad Column This pin function depends on the volt age applied to pin 3 (See pin 3, Hook description). When configured as “Boot”, ap plyi[...]

Chapter 7 MODEL CHART AND TEST SPECIFICA TION 1.0 Low Power Radios 1.1 146-174 MHz CM200/CM 300/PM400 Model Chart VHF2, 1-25 W , 146-174 MHz Model Description AAM50KNC9AA1AN CM200 146-174 MHz, 1-25 W , 4 CH AAM50KNF9AA1AN CM300 146-174 MHz, 1-25 W , 32 CH AAM50KNF9AA3AN PM400 146-174 MHz, 1-2 5 W , 64 CH Item Description X PMUD1871_ CM200 Super T a[...]

7-2 MODEL CHART AND TEST SPECIFICATION 1.2 438-370 MHz CM200/CM 300/PM400 Model Chart UHF2, 1-25 W , 438-470 MHz Model Description AAM50RNC9AA1A CM200 438-470 MHz, 1-25 W , 4 CH AAM50RNF9AA1AN CM300 438-470 MHz, 1-25 W , 32 CH AAN50RNF9AA3AN PM400 438-470 MHz, 1-25 W , 64 CH Item Description X PMUE1996 _ CM200 Super T anapa UHF2, 1-25 W , 4 CH X PM[...]

Low Power Radios 7-3 1.3 Specifications General Specification VHF2 UHF2 Frequency Ra nge: 146-174 MHz 438-470 MHz Frequency S tability (-30 ° C to +60 ° C, 25 ° C Ref.) ±2.5 PPM Channel Cap acity: CM200 - 4 CM300 - 32 PM400 - 64 Channel S pacing: 12.5/20/25 kHz Power Supply: 13.8 Vdc (1 1 Vdc - 16.6 Vdc) negative V ehicle ground Dimensions (L x[...]

7-4 MODEL CHART AND TEST SPECIFICATION T ransmitter Specification VHF2 UHF2 Power Output 1-25W Conducted/Radiated Emissions: -36 dBm < 1 GHz -30 dBm > 1 GHz Audio Response: (fr om 6 dB/oct. Pre- Emphasis, 30 0 to 3000Hz) TIA603 and CEP T Tx Audio Distortion < 3% Modulation Limiting: ±2.5 kHz @ 12.5 kHz ±4.0 kHz @ 20 kHz ±5.0 kHz @ 25 kH[...]

High Power Radios 7-5 2.0 High Power Radios 2.1 136-162 MHz CM300 Model Chart 2.2 146-174 MHz CM200/CM 300/PM400 Model Chart VHF1, 25-45 W , 136-162 MHz Model Description AAM50JQF9AA1AN CM300 136-162 MHz, 2 5-45 W , 32 CH Item Description X PMUD1946_ CM300 Supe r T anapa VHF1, 25-45 W , 32 CH X PMUD1962_ CM300 T anapa VHF1, 25-45 W , 32 CH X PMLN45[...]

7-6 MODEL CHART AND TEST SPECIFICATION 2.3 438-470 MHz CM200/CM 300/PM400 Model Chart UHF2, 25-40 W , 438-470 MHz Model Description AAM50RPC9AA1A CM200 438-470 MHz, 25-40 W , 4 CH AAM50RPF9AA1AN CM300 438-470 MHz, 25-40 W , 32 CH AAM50RPF9AA3AN PM400 438-470 MHz, 25- 40 W , 64 CH Item Description X PMUE2007 _ CM200 Super T anapa UHF2, 25 -40 W , 4 [...]

High Power Radios 7-7 2.4 465-495 MHz PM400 Model Chart UHF3, 25-40 W 465-495 MHz Model Description AAM50SPF9AA3AN PM400 465-495 MHz, 25-40 W , 64 CH Item Description X PMUE2092_ PM400 Super T anapa UHF3 , 25-40 W , 64 CH X PMUE2038_ PM400 T anapa UHF3,25- 40 W , 64 CH X FLN3108_AN Control Head X PMUE2038_S PM400 UHF3 Service Board X 6881096C32 PM4[...]

7-8 MODEL CHART AND TEST SPECIFICATION 2.5 Specifications General Specification VHF1 VHF2 UHF2 UHF3 Frequency Range: 136-162 M Hz 146-174 MHz 438-470 M Hz 465-495 MHz Frequency S tability (-30 ° C to +60 ° C, 25 ° C Ref.) ±2.5 PPM Channel Capacity: CM300 - 32 CM200 - 4 CM300 - 32 PM400 - 64 PM400 -64 Channel S pacing: 12.5/25 k Hz Power Supply:[...]

High Power Radios 7-9 T ransmitter Spec ification VHF1 VHF2 UHF2 UHF3 Power Output 25-45 W 25-40 W Conducted/Radiated Emissions: -26 dBm Audio Response: (from 6 dB/oct. Pre-Emphasis, 300 to 3000Hz) TIA603 and CEP T Tx Audio Di stortion < 3% Modulation Limiting: ±2.5 kHz @ 12.5 kHz ±4.0 kHz @ 20 kHz ±5.0 kHz @ 25 kHz FM Hum and Noise: -40 dB@1[...]

7-10 MODEL CHART AND TEST SPECIFICATION 3.0 MIL S tandards MIL STDS 810 C, D, and E: Ap plicable to UHF and VHF S pecifications (8.2 and 8.4) Milit ary St andards 810 C, D, & E: Parameters/Method s/Procedures 810C 810D 810E Applicable MIL-STD Methods Procedure s Methods Procedures M ethods Procedures T emperature Shock 503.1 I 503.2 I 503.3 I S[...]

Glossary G-i GLOSSAR Y Glossary of T erms Te r m Definition ALC Automatic Level Control: a circuit in the tra nsmit RF path that controls RF power amplifier output, pr ovides leveling over frequency an d voltage, and pro- tects against hi gh VSWR (V oltage S tanding W ave Ratio). ASF IC Audio Signalling Filter Integrat ed Circuit with voice compand[...]

G-ii Glossary OSW Outbound Signalling Word: dat a transm itted on the control channel from the central controller to the subscriber unit. PC Board Printed Circuit Board PL Private-Line® tone squelc h: a continuo us sub-audi ble tone that is transmitted along with the carrier . PLL Phase-Locked Loop: a circuit in which an oscillator is kept in phas[...]

Glossary G-iii UHF Ultra High Frequency µP Microproc essor VCO V oltage-Controlled Oscillator: an oscilla tor whereby the frequency of oscillation can be varied by changing a control volt age. VCOBIC V oltage-Controlled Oscillator Buf f er Integrated Circuit VHF V ery High Frequency VSWR V oltage S tanding W ave Ratio[...]

G-iv Glossary THIS P AGE INTENTIO NALL Y LEFT BLANK[...]

[...]

Radius CM20 0 ™ / CM30 0 ™ & Mot or ola PM40 0 ™ Commercial Ser ies Mobile Radio Basic Service Manual MO TOR OLA, the St ylized M Logo, and R adius are registered in the US Patent & T rademark Of fice. All other product or ser vice names are the property of their respective owners. © 2004 Motorola, Inc. All rights reserved. Printed i[...]