Safety 1st TR233 Especificações Página 1

PHILIPSPRM80 SERIES VHF/UHF MOBILERADIO TELEPHONEWARNINGThe transistors used in the transmitter power amplifier contain berylliumoxide, the dust of wh

1.2Provisional3ChannelSpacin4,5FreqBand(MHz)6Freq.Stab7RFPower(Watts)8Control9Version10CTCSSSignall11Sequent.Signalli12Installation13Mic.14Speaker15No

1.5.1 Safety First1. The use of the mobile radio while driving may be in breach of traffic regulations insome countries. Check with your local Traffic

1.5.3 IntroductionThe Type PRM8010 transceiver is a versatile, microprocessor-controlled, dash-mounted, mobileradio designed to access facilities prov

Adjust the 'volume' control until receiver noise is heard.The volume control adjusts the speech level at the loudspeaker. Clockwiserotation

If the equipment is fitted with CTCSS and/or selective calling, the busy indicator and the transmitinhibit facility are both defeated whenever a valid

If the microphone is removed from its cradle while the transceiver is stillscanning, the priority channel will be selected. The channel display will1.

The mobile will return to the channel that was selected before the scan function was initiated.1.5.6.2 SELECTION OF PRIORITY CHANNEL (if enabled)Selec

1.5.7.4 EXTERNAL ALERTThis button is used to control an external device, such as the vehicle horn. It is normally switchedon when you expect to be out

TYPE OF ALERTERROR Generated when operatorTONE presses an invalid button._2CONTINUOGenerated on InvalidTONEof PTT, or If microphone leftERROR of cradl

SECTION 1INTRODUCTIONSection 1 Page11.1 PRODUCT DESCRIPTION 11.1.1 Product Variants 11.1.2 Product Family 21.2MECHANICAL CONSTRUCTION 31.3 SERVICE/ACC

Serial Number 200001Hardware 12NC9525 001 10072Application CodeFrequency Band 470 - 500MHzEncode SignallingOptionsEncode Type Identity Tone PeriodIndi

SECTION 2 TECHNICAL SPECIFICATIONSUnless otherwise stated, specifications apply for an ambient temperature of 25 Deg C and13.8V supply.2.1 GENERALOper

Switching BandwidthFrequency band coverage without retuningUHF TM 40MHz, U0 30MHz, W 1 30MHz, W4 20MHzVHF A9/B0 band 30MHzVHF E0 band 20MHzChannel Cap

2.2 RECEIVERSensitivity12dB sinad for less than 0.31uV pd. at the antenna socket, for 1 kHz at 60% maximumdeviation and 50% rated AF output power.Adja

Audio Frequency ResponseMeasured at the loud speaker for a constant deviation at 20% of maximum.Within +l dB to -3dB of -6dB per octave de-emphasis re

Audio Frequency Responsei) 25kHz Channel Spacing.Within +1 to -3dB of a +6dB per octave pre-emphasis, over 300 to 3000Hz (withoutCTCSS).With CTCSS, wi

(vii) Lead-in-Delay.0 to 65Sec. Accuracy greater than 1%.(viii) Lead-out-Delay.0 to 255mSec. Accuracy greater than +0, -1 mSec.(ix)Send Repeat Rate.Ap

(iv) Valid Tone Period for Successful Decode.80% deviation and full quieting.-40% to +70%(v) Code Format.A successful decode will occur if the correct

(ii) Software RTB.RTB phase shift: 180 degrees +/- 10 degrees, lagging.RTB duration: between 80mSec to 150mSec.CTCSS tone frequency dependent. See Tab

Table 2.1 CTCSS Tonesets Available In the PRM80FREQ. (Hz) Tone NumberR.T.B. Duration(mSec)(disabled)67.0Hz71.9 Hz74.4 Hz77.0 Hz79.7 Hz82.5 Hz85.4 Hz88

SECTION 4 ALIGNMENT PROCEDURESection 4 Page 14.1 TEST EQUIPMENT 14.2 GENERAL INSTRUCTIONS 14.3 PRELIMINARY ADJUSTMENTS 14.4 TEST FREQUENCY TABLE 24.4.

TABLE 2.2Selcall Tonesets Available In the PRM80TONE#Manucturer sType NCML ST-500 SIG TEC SIG TEC SEPAC CML ST-500 0 SIG TECInternationalSystem No.-CC

SECTION 3 TECHNICAL DESCRIPTION3.1 GENERAL OVERVIEWShown in figure 3.1 is the overall simplified block diagram of the PRM80.Figure 3.1 PRM80 - Overall

iii) Radio BoardContaining the transmitter power amplifier with antenna switch, receiver front end filters andmixer, receiver IF and demodulator, synt

an amplitude limiter stage. Following the limiter the signal is low pass filtered prior tomodulating the transmit VCO. Provision is made to combine mi

The CTCSS encode and decode function is performed in a single integrated circuit. The IC iscontrolled by the microprocessor. The encoder/decoder IC al

3.2 DETAILED TECHNICAL DESCRIPTION3.2.1 Receiver3.2.1.1 GENERALThe double conversion receiver design is intended for narrow band frequency modulations

required for the total front end filtering are mechanically pre-aligned by the tuning cores, butonce set require no further readjustment.Conversion to

3.2.1.4.1 Path 1.In this path the signal is first attenuated by approximately lOdB with resistors R221 and 8222on the control board. This is to reduce

3.2.1.4.3 Path 3.The final path for the demodulated receive audio, is to the pre-processing circuit for the tonesequential signalling decoder.The sign

The action of this power control loop is to stabilize the output power for a normally matchedload.For a load mismatch condition at the transmitter out

SECTION 1 INTRODUCTION1.1 PRODUCT DESCRIPTIONThe PRM80 series of mobile radio transceivers are primarily, under dashmounted local controlled simplex r

that 25 watts are available at the antenna socket. Broadband impedance matching circuits areused between all stages with extensive use of printed micr

3.2.2.2 TRANSMIT AUDIO PROCESSINGThe majority of the transmit audio circuitry is located on the control PCB. The primary input isat PIN 8 of the micro

On the radio PCB is the final stage of transmit audio processing. The UHF issue C version ofthis board uses a discrete transistor active low pass filt

If the programmable divider value of N is increased by 1 to N+1, then for phase lock to occurFo'/N+1 = Fr, where Fo' is the new VCO frequenc

The prescaler is a dual modulus type with programmable division ratios of either 64 or 65. Ifthe prescaler were of the fixed division ratio type (eg:

The loop filter OP AMP do supply is produced by a voltage tripler circuit on the control board.This 23 volt supply enables the loop filter output to c

3.2.3.7 VOLTAGE CONTROLLED OSCILLATORSThe UHF voltage controlled oscillators for the transmitter excitation, and the receiver localoscillator function

output produced by each buffered VCO is sufficient to drive the synthesizer frequency dividerand the other following circuits, (mixer for the receiver

A low current +5V regulator operates permanently to supply the microprocessor internal RAM.The microprocessor derives its power from the +5.2V regulat

The circuit requires several changes of state of the switching transistors before the outputvoltage reaches +23V However, assuming a loss-less circuit

ii) Transmitter Power 1 to 6 watt, 1 to 25 watt, 10 to 40 watt.(Different printed circuit board assemblies required foreach option).iii) Frequency Ban

When the primary supply voltage drops below 9.8V, the voltage drop across D225 allowsR300 to forward bias TR224. TR224 and TR232 form a Schmitt trigge

3.2.4.5 RADIO INTERFACE TO MICROPROCESSORThe interface between the radio system and the microprocessor occurs in three ways, by themicroprocessor dire

Port 1 of the control processor is primarily the serial control port which controls the variousserial control devices within the mobile.P1.0 is the se

P3.0 is the serial programmer receive data line. P3.1 is the serial programmer transmit dataline.P3.2 is the low volts interrupt input. When the suppl

3.2.4.7 SERIAL CONTROL BUSThe serial control bus is used for control of the following devices; EEPROM, display driver,CTCSS encoder/decoder, serial la

the display, whilst the 64-channel variant utilises both back planes and thus requires twogroups of data. Note the period of the serial clock when add

During encode operation the output ports P2.5, P2.6 and P2.7 are controlled by themicroprocessor. The outputs from these ports are combined by the sum

ScanButton ChevronLCD 1 is electrically connected to the driver integrated circuit IC 100 by a zebra strip. This ICcontains an internal clock with the

One position is unused in the 64-channel variant. In operation each column line is, in turn, setto a logic low level. As each column is scanned the ro

SECTION 4 ALIGNMENT PROCEDURE4.1 TEST EQUIPMENTi) Rhode and Schwartz model SMFP or CMT. Alternative:Marconi transceiver test set model 2995.ii) Power

vi) Large loudspeakervii) Depot Data programmer.viii) 24 volt to 12 volt do to do converter.ix) Interference filter (12 volt do power).1.2 MECHANICAL

4.4 TEST FREQUENCY TABLENOTE; The appropriate table of information should be programmed into the transceiver.FrequencyBand(MHz)ChannelNumberTest Frequ

Frequency Channel Test Frequency OPTION DETAILSBand Number (MHz)(MHz)TransmitCTCSSSelcallTx Rx Power ENC/DECW1 1 470.025 470.525 25470 to 5002485.0254

4.5 THE PROCEDURE4.5.1 VCO Alignment4.5.1.1 VHF RECEIVE VCOStepNoResultMeasured byResultMeasured atAdjustResult Notes1Switch on powerSelect ch. 3..Hig

4.5.2 Transmitter Power Adjustment (Continued)StepNoResultMeasured byResultMeasured atAdjustResult Notes4Ammeterdo supplyinput<6.5A (UHF)<5.5A (

4.5.4 UHF Receiver Front End AlignmentStepNoResultMeasured byResultMeasured atAdjustResult Notes1Switch on powerand select channel1.Lowest freq. chann

4.5.5 VHF Receiver Front End AlignmentStepNoResultMeasured byResultMeasured atAdjustResult Notes1Switch on powerand selectchannel 3.Highest freq.chann

4.5.5 VHF Receiver Front End Alignment (Continued)StepNoResultMeasured byResultMeasured atAdjust Result Notes15RF sig. gen.output.0.31 uV pdlevel.16SI

4.5.7 Transmit Modulation Alignment (No CTCSS)StepNoResultMeasured byResultMeasured atAdjustResult Notes1Switch on powerselect ch.Select ch.2 on VHFSe

4.5.7 Transmit Modulation Alignment (No CTCSS)(Continued)StepNoResultMeasured byResultMeasured atAdjustResult Notes13DeviationmonitorAntennasocket SK4

4.5.9 TransmIt Modulation Alignment with SelcallStepNoResultMeasured byResultMeasured atAdjustResult Notes1PERFORM ALIGNMENT PROCEDURE 4.5.7(AND 4.5.8

The front panel assembly is attached to the outer sleeve and a dust and water seal gasket isprovided at this interface.The antenna connection is provi

SECTION 5 INSTALLATION INSTRUCTIONSNOTE: Refer also to"'VEHICLE CARE" page at front of handbook5.1 GENERAL INFORMATION5.1.1 Operator Ac

5.1.4 Specialized VehiclesThe installation on certain specialized vehicles, such as Petrol Tankers and Fire Appliances,may be subject to safety regula

5.2 MAIN UNIT FITMENT5.2.1 Cradle InstallationRefer to Figure 5.1.Fit the transceiver cradle into the required position in the vehicle using a minimum

5.2.5 Microphone RemovalRefer to Figure 5.3.To remove the microphone, first remove the microphone socket cover.WARNING: This procedure requires that g

The control board may then be removed from the chassis but it remains connected to the radio PCBand front panel by a flexible interconnecting circuit-