Yaesu VX-7R - TECHNICAL Service Manual

50/144/430 MHz Triple-Band

Heavy Duty Submersible Transceiver

VX-7R

Technical Supplement

EH009M90A

Introduction

the VX-7R 50/144/430 MHzTriple-Band Heavy Duty Submersible Transceiver.

chip components. Attempts by non-qualified persons to service this equipment may result in permanent damage not covered by the warranty, and may be illegal in some countries.

this transceiver. Each side of the board is referred to by the type of the majority of components installed on that side ("Side A" or "Side B"). In most cases one side has only chip components, and the other has either a mixture of both chip and leaded components (trimmers, coils, electrolytic capacitors, ICs, etc.), or leaded components only.

TEX STANDARD assumes no liability for damage that may occur as a result of typographical or other errors that may be present. Your cooperation in pointing out any inconsistencies in the technical information would be appreciated.

VERTEX STANDARD CO., LTD.

4-8-8 Nakameguro, Meguro-Ku, Tokyo 153-8644, Japan

VERTEX STANDARD

US Headquarters

10900 Walker Street, Cypress, CA 90630, U.S.A.

International Division

8350 N.W. 52nd Terrace, Suite 201, Miami, FL 33166, U.S.A.

YAESU EUROPE B.V.

P.O. Box 75525, 1118 ZN Schiphol, The Netherlands

YAESU UK LTD.

Unit 12, Sun Valley Business Park, Winnall Close Winchester, Hampshire, SO23 0LB, U.K.

VERTEX STANDARD HK LTD.

Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road, Kwun Tong, Kowloon, Hong Kong

This manual provides the technical information necessary for servicing

Servicing this equipment requires expertise in handing surface-mount

Two PCB layout diagrams provided for each double-sided board in

While we believe the information in this manual to be correct, VER-

Specification ....................................................................................................................................2

Exploded View & Miscellaneous Parts........................................................................................4

Block Diagram .................................................................................................................................5

Interconnection Diagram ...............................................................................................................6

Circuit Description ........................................................................................................................7

Alignment ...................................................................................................................................... 11

Board Unit (Schematics, Layouts & Parts)

RF Unit ....................................................................................................................................................................19

AF Unit....................................................................................................................................................................33

CNTL Unit ..............................................................................................................................................................43

VCO Unit ................................................................................................................................................................53

Contents

Specifications

General

Frequency Ranges:

Channel Steps: Frequency Stability: Emission Type: Antenna Impedance: Supply Voltage:

Current Consumption:

Operating Temperature: Case Size: Weight:

Rx (MAIN):

0.5 - 1.8 MHz (BC Band)

1.8 - 30 MHz (SW Band) 30-59 MHz (50 MHz HAM: USA version) 30-76 MHz (50 MHz HAM: EXP version) 59-108 MHz (FM: USA version) 76-108 MHz (FM: EXP version) 108-137 MHz (Air Band) 137-174 MHz (144 MHz HAM) 174-222 MHz (VHF-TV) 222-225 MHz (220 MHz HAM: USA version) 225-420 MHz (ACT1: Action Band 1: USA version) 222-420 MHz (ACT1: Action Band 1: EXP version) 420-470 MHz (430 MHz HAM) 470-729 MHz (UHF-TV: USA version) 470-800 MHz (UHF-TV: EXP version) 800-999 MHz (ACT2: Action Band 2, cellular Blocked)

Rx (SUB):

50 - 54 MHz 137 - 174 MHz 420 - 470 MHz

Tx: 50 - 54 MHz (MAIN & SUB)

144 - 146 MHz or 144 - 148 MHz (MAIN & SUB) 222-225 MHz (MAIN, USA version)

430 - 440 MHz or 430 - 450 MHz (MAIN & SUB) 5/9/10/12.5/15/20/25/50/100 kHz ±5 ppm (+14°F to +122°F, –10°C to +50°C) F2, F3, A3 50-ohm Nominal: 7.4 V DC, Negative Ground Operating: 10 - 16 V DC, Negative Ground (EXT DC jack) 150 mA (Mono Band Receive) 200 mA (Dual Band Receive) 55 mA (Mono Band Receive, Standby, Saver Off) 100 mA (Dual Band Receive, Standby, Saver Off) 25 mA (Mono Band Receive, Standby, Saver On "Save Ratio 1:5") 50 mA (Dual Band Receive, Standby, Saver On "Save Ratio 1:5") 400 µA (Auto Power Off)

1.6/1.3/1.0/0.7 A (50 MHz, Tx HI/L3/L2/L1)

1.71.4/1.1/0.8 A (144 MHz, Tx HI/L3/L2/L1)

0.6 A (220 MHz, Tx)

1.8/1.5/1.2/0.9/ A (430 MHz, Tx HI/L3/L2/L1) –4°F to +140°F (–20°C to +60°C) 60 (W) x 90 (H) x 28 (D) mm (w/o knob & antenna) 250 g

Transmitter

RF Power Output:

Modulation Type:

Maximum Deviation: Spurious Emission: Microphone Impedance:

Receiver

Circuit Type:

Intermediate Frequencies:

Sensitivity:

Selectivity: AF Output:

Specifications

5/2.5/1.0/0.5 W (50/144/430 MHz, FM)

0.3 W (220 MHz, FM)

1.0 W (50 MHz, FM) FM: Variable Reactance AM: Early Stage (Low Level) ±5/±2.5 kHz At least 60 dB below (@ Tx 1W) 2 k-ohm

N-FM, AM: Double-Conversion Superheterodyne W-FM: Triple-Conversion Superheterodyne 1st: 47.25 MHz (N-FM, AM)

45.8 MHz (W-FM)

2nd: 450 kHz (N-FM, AM)

10.7 MHz (W-FM)

3rd: 1 MHz (W-FM)

3.0 µV for 10 dB SINAD (0.5 - 30 MHz, AM)

0.5 µV for 12 dB SINAD (30 - 50 MHz, N-FM)

0.16 µV for 12 dB SINAD (50 - 54 MHz, N-FM) 15 kHz/35 kHz (-6 dB/-60 dB: N-FM, AM) 200 kHz/300 kHz (-6 dB/-20 dB: W-FM) 200 mW @ 8 ohm for 10 % THD (@ 7.4V DC) 400 mW @ 8 ohm for 10 % THD (@ 13.8V DC)

Specifications are subject to change without notice, and are guaranteed within amateur bands only.

Exploded View & Miscellaneous Parts

RA0417100 PANEL FRAME

RA03995000 WINDOW

RA03994000 DOUBLE FACE TAPE

RA0401600 O RING

RA0399800 LIGHT GUIDE (LED)

Q7000426 LCD MODULE

RA0399100 LIGHT GUIDE (LED)

RA0405600 MIC HOLDER RUBBER

No.

VXSTD P/N DISCRIPTION QTY.

À U9900137 Á U9900138 Â U07225120 Ã U9900136 Ä RA0304300 Å U00103002 Æ U00104002 Ç U9900140 È U44104002 É U9900141

U07125102

BINDING HEAD SCREW M2X21.7 (W/ O RING) BINDING HEAD SCREW M2X5 (W/ O RING) PAN HEAD SCREW M2X2.5SUS#1 SPECIAL SCREW M2X2.35 WASHER PAN HEAD SCREW M2X3NI PAN HEAD SCREW M2X4NI TAPTITE SCREW M2X6SUS#3 TAPTITE SCREW M2X4NI TAPTITE SCREW M1.7X5NI#3 TAPTITE SCREW M1.7X2.5SUS#1

CP7346002 (USA) CP7346003 (EXPORT) CP7346004 (GERMANY) PANEL ASS’Y with RUBBER KNOB, MIC SHEET, SP SHEET, SP, PROTECTOR L, PROTECTOR R

RA0400000 RUBBER PACKING

RA014250A DOUBLE FACE TAPE (LCD)

RA0399900 REFLECTOR SHEET

2 4 4 1 1 1 6 2 4 2 2

There is a direction in WASHER.

SCREW

WASHER

EXP CAP

RA0401200 ENCODER KNOB

CNTL-Unit

AF-Unit

RA0426800 O RING

RA0400900 O RING

RA0400500 EXT CAP

RA0292200 SPECIAL NUT

RA0426900 O RING

RA0087900 SPECIAL NUT

RA0401900 VOLUME KNOB

RA0400600 CAP(SP/MIC)

FR008330C FPC CABLE

RA0400200 STUD (X4 pcs)

RA01403AA LATCH NAIL

CP7342003 REAR CASE ASS’Y with SMA CONNECTOR ASS’Y, TERMINAL BOARD ASS’Y, RUBBER KNOB (PTT), RUBBER KNOB (PTT)

RA0399700 HOLDER (PTT)

RA0400100 RUBBER KNOB (PTT)

RA0140100 MASK SHEET

RA0141600 RUBBER PACKING

FNB-80LI

Block Diagram

Interconnection Diagram

Circuit Description

The VX-7R consists of a RF-UNIT, a CNTL-UNIT and an AF-UNIT. The RF-UNIT contains the receiver front end, PLL IC, power and switching circuits, and the VCOUNIT for transmit and receive local signal oscillation. The CNTL-UNIT contains the CPU, and audio ICs, and the power circuitry for the LCD. The AF-UNIT contains the IF, and audio ICs.

Receiver Signal Flow

The VX-7R includes five receiver front ends, each

optimized for a particular frequency range and mode combination.

(1) Triplexer

Signals between 0.5 and 540 MHz received at the antenna terminal pass through a first low-pass filter composed of C1266, C1269, C1289, C1291, C1296, C1297, L1059, L1060, L1067 and L1068.

Received 430-MHz signals, after passing through the low-pass filter, are fed to the UHF T/R switch circuit composed of diode switch D1048 (RLS135), D1051 (1SV307).

Received 145-MHz signals, after passing through the low-pass filter, are fed to the VHF T/R switch circuit composed of diode switch D1053 (RLS135), D1054 (1SV307).

Received 50-MHz signals, after passing through the low-pass filter, are fed to the 50MHz T/R switch circuit composed of diode switch D1058 (RLS135), D1059 (1SV307).

(2) 145-MHz Band and 76-300MHz Reception

Received signals between 76 and 300 MHz pass through the Triplexer circuit, low-pass filter/high-pass filter circuit, VHF T/R switch circuit and protector diode D1002 (1SS362) before additional filtering by a band-pass filter prior to application to RF amplifier Q1004 (2SC5555). The amplified RF signal is passed through a band-pass filter to first mixer Q1012 (2SC5555). Meanwhile, VHF output from the VCO-UNIT is amplified by Q1017 (2SC5374) and applied through diode T/R switch D1041 (DAN222) to mixer Q1012 as the first local signal.

The 47.25-MHz intermediate frequency product of the mixer is delivered to the AF-UNIT.

The TUNE voltage from the CPU on the CNTL-UNIT is amplified by DC amplifier Q3017 (NJU7007F2) and applied to varactors D1020 and D1022 (HVC369B), D1019, D1021, D1023, D1024, D1033 and D1036 (1SV325) in the variable frequency band-pass filters. By changing the electrostatic capacitance of the varactors, optimum

filter characteristics are provided for each specific operating frequency.

(3) 435-MHz Band and 222-540MHz Reception

Received signals between 222 and 540 MHz pass through the Triplexer circuit, low-pass filter/high-pass filter circuit, UHF T/R switch circuit and protector diode D1001 (1SS362) before additional filtering by a bandpass filter prior to application to RF amplifier Q1003 (2SC5555). The amplified RF signal is passed through a band-pass filter, RF amplifier Q1006 (2SC5555) and band-pass filter to first mixer Q1011 (2SC5555). Meanwhile, UHF output from the VCO-UNIT is amplified by Q1016 (2SC5374) and applied through diode T/R switch D1045 (HN2D01FU) to mixer Q1011 as the first local signal.

The 47.25-MHz intermediate frequency product of the mixer is delivered to the AF-UNIT.

The TUNE voltage from the CPU on the CNTL-UNIT is amplified by DC amplifier Q3017 and applied to varactors D1005, D1018, D1030 and D1031 (HVC358B) in the variable frequency band-pass filters. By changing the electrostatic capacitance of the varactors, optimum filter characteristics are provided for each specific operating frequency.

(4) 50-MHz-Band and 30-76 MHz Reception

Received signals between 30 and 76 MHz pass through the Triplexer circuit, low-pass filter circuit, 50 MHz T/R switch circuit and protector diode D1003 (1SS362) before additional filtering by a band-pass filter prior to application to RF amplifier Q1005 (2SC5555). The amplified RF signal is passed through a band-pass filter to first mixer Q1008 (2SC5555). Meanwhile, 50 MHz output from the VCO-UNIT is amplified by Q1018 (2SC5374) and applied through diode T/R switch D1046 (HN2D01FU) to mixer Q1008 as the first local signal.

The 47.25-MHz intermediate frequency product of the mixer is delivered to the AF-UNIT.

The TUNE voltage from the CPU on the CNTL-UNIT is amplified by DC amplifier Q3017 and applied to varactors D1025 and D1026 (1SV325) in the variable frequency band-pass filters. By changing the electrostatic capacitance of the varactors, optimum filter characteristics are provided for each specific operating frequency.

Circuit Description

(5) 0.5 - 30 MHz Reception

Received signals between 0.5 and 30 MHz pass through the Triplexer circuit, low-pass filter circuit, HF T/R switch circuit and protector diode D1003 before additional filtering by a band-pass filter prior to application to RF amplifier Q1009 (2SC4915-0). The amplified RF signal is passed through a band-pass filter to first mixer Q1013 (2SC4915-0). Meanwhile, HF output from the VCOUNIT is amplified by Q1018 and applied through diode T/R switch D1046 to mixer Q1013 as the first local signal.

The 47.25-MHz intermediate frequency product of the mixer is delivered to the AF-UNIT.

The TUNE voltage from the CPU on the CNTL-UNIT is amplified by DC amplifier Q3017 and applied to varactors D1013 (HVR100) in the variable frequency bandpass filters. By changing the electrostatic capacitance of the varactors, optimum filter characteristics are provided for each specific operating frequency.

(6) 540 - 999 MHz Reception

Received signals between 540 and 999 MHz pass through the high-pass filter circuit, T/R switch D1004 (1SV271) prior to application to RF amplifier Q1002 (2SC5277). The amplified RF signal is passed through a band-pass filter to first mixer Q1010 (2SC5277). Meanwhile, UHF output from the VCO-UNIT is amplified by Q1016 and applied through diode T/R switch D1045 to mixer Q1010 as the first local signal.

The 47.25-MHz intermediate frequency product of the mixer is delivered to the AF-UNIT.

The TUNE voltage from the CPU on the CNTL-UNIT is amplified by DC amplifier Q3017 and applied to varactors D1015 and D1017 (HVC355B) in the variable frequency band-pass filters. By changing the electrostatic capacitance of the varactors, optimum filter characteristics are provided for each specific operating frequency.

(7) 47.25-MHz First Intermediate Frequency

The 47.25-MHz first intermediate frequency from the first mixers is delivered from the RF-UNIT to the AFUNIT through jacks J1008 and J2001. On the AF-UNIT, the IF for AM and FM-narrow signals is passed through NAR/WIDE switch D2001 (DAP222) and the 47.25-MHz monolithic crystal filter (MCF) XF2001 to narrow IF amplifier Q2002 (2SC4915-0) for input to pin 16 of the Narrow IF IC Q2016 (TA31136FN), after amplitude limiting by D2003 (DA221).

Meanwhile, a portion of the output of 11.7-MHz crys-

tal X1001 on the RF-UNIT is multiplied fourfold by Q2004 (2SC4915-0) and Q2012 (2SC4154E) to provide the 46.8MHz second local signal, applied to the Narrow IF IC. Within the IC, this signal is mixed with the 47.25-MHz first intermediate frequency signal to produce the 450 kHz second intermediate frequency.

This second IF is filtered by ceramic filter CF2002

(ALFYM450F=k) and amplified by the limiting amplifier within the Narrow IF IC before quadrature detection by ceramic discriminator CD2001 (CDBM450C7).

Demodulated audio is passed from pin 9 of the Nar-

row IF IC through the "Mute" analog switch Q2029 (2SJ364) and squelch gate Q2036 (2SJ364) before de-emphasis at Q2028 (DTC144EE).

The resulting audio is amplified by AF amplifier Q2040

(TDA7233D) and fed through the MIC/EAR jack J2002 to internal speaker SP1001 or an external earphone.

(8) Squelch Control

Signal components in the neighborhood of 15 kHz contained in the discriminator output pass through an active band-pass filter composed of R2059, R2060, R2062, C2076, C2078 and the operational amplifier between pins 7 and 8 within Narrow IF IC Q2016. They are then rectified by D2012 and D2013 (MC2850) to obtain a DC voltage corresponding to the level of noise. This voltage is fed to pin 49 of CPU Q3035 (HD6472237TF10), which compares the input voltage with a previously set threshold. When the input voltage drops below the threshold, normally due to the presence of a carrier, the CPU turns on squelch gate Q2036 and allows any demodulated audio to pass. At the same time, Q3001 and/or Q3003 and/ or Q3004 goes on, causing the BUSY/TX lamp D3033 (FRGB1312CE-10-TF) to light.

Transmitter Signal Flow (1) 145-MHz-Band Transmit/Receive Switching

Closing PTT switch S2002 on the AF-UNIT pulls the base of Q3008 (DTA144EE) low, causing the collector to go high. This signal is fed to pin 33 (PTT) of CPU Q3035, allowing the CPU to recognize that the PTT switch has been pushed. When the CPU detects closure of the PTT switch, pin 10 (TX) goes high. This control signal is delivered to the RF-UNIT, where it switches Q1044 (UMW1) and Q1043 (CPH6102) to produce the TX control signal that activates Q1046 (2SA1774). At the same time, PLL division data is fed to PLL IC Q1019 (MB15A01PFV1) from the CPU, to disable the receiver power saver. Also,

Circuit Description

it switches Q1048 (KRC654U) to disable the receiver circuits. This causes the "red" mode of BUSY/TX lamp D3033 to light.

(2) Modulation

Voice signal input from either built-in microphone

MC3001 (EM-140) on the CNTL-UNIT or external jack J2002 on the AF-UNIT is pre-emphasized by C3012 and R3031, and processed by microphone amplifier Q3018 (NJM3403AV), IDC (instantaneous deviation control) circuit Q1014 to prevent overmodulation, and fed through active low-pass filter Q1014.

During CTCSS operation, the voice signal is mixed with the TONE ENC subaudible tone signal from pin 43 of the CPU and delivered to the RF-UNIT through jacks J3003 and J1008. During DTMF operation, the DTMF tones from pin 44 of the CPU are fed to the IDC stage.

(3) 145-MHz-Band Transmission

Modulating audio from the CNTL-UNIT passes through deviation setting D/A converter Q3012 to the VHF modulator portion of the VCO-UNIT mounted on the RF-UNIT. This signal is applied to varactor D4005 (HSC277 ) in the tank circuit of VHF VCO Q4004 (EC3H07B), which oscillates at the desired VHF transmitting frequency. The modulated VCO signal is buffered by amplifier Q4006 (EC3H07B) and Q1017 and delivered through VHF T/R diode switch D1041 to the RFUNIT. The modulated low-level VHF transmit signal from the VCO is passed through diode switch D1043 (DAN222) to amplifier Q1014 (2SC5226-5). The modulated VHF transmit signal from the VCO is amplified by Q1023 (2SK3475) and RF power amplifier Q1027 (2SK3476) up to 0.05, 1.0, 2.5 or 5 Watts (depending on the power source). The RF output passes through TX diode switch D1053. RF output is passed by the T/R switch and low-pass filter to suppress harmonics and spurious products before output gets to the antenna at the antenna terminal.

ered by amplifier Q4006 and Q1016 and delivered through UHF T/R diode switch D1045 to the RF-UNIT. The modulated low-level UHF transmit signal from the VCO is passed through diode switch D1045 (HN2D01FU) to amplifier Q1014. The modulated UHF transmit signal from the VCO is amplified by Q1023 and RF power amplifier Q1027 up to 0.05, 1.0, 2.5 or 5 Watts (depending on the power source). The RF output passes through TX diode switch D1048. RF output is passed through the T/ R switch and low-pass filter to suppress harmonics and spurious products before output gets to the antenna at the antenna terminal.

(5) 50-MHz-Band Transmission

Modulating audio from the CNTL-UNIT passes through deviation setting D/A converter Q3012 to the 50 MHz modulator portion of the VCO-UNIT mounted on the RF-UNIT. This signal is applied to varactor D4009 (HSC277) in the tank circuit of 50 MHz VCO Q4005 (EC3H07B), which oscillates at the desired 50 MHz transmitting frequency. The modulated VCO signal is buffered by amplifier Q4006 and Q1018 and delivered through 50 MHz T/R diode switch D1046 to the RF-UNIT. The modulated low-level 50 MHz transmit signal from the VCO is passed through diode switch D1046 (HN2D01FU) to amplifier Q1014. The modulated 50 MHz transmit signal from the VCO is amplified by Q1023 and RF power amplifier Q1027 up to 0.05, 1.0, 2.5 or 5 Watts (depending on the power source). The RF output passes through TX diode switch D1058. RF output is passed through the T/R switch and low-pass filter to suppress harmonics and spurious products before output gets to

the antenna at the antenna terminal.

(4) 435-MHz-Band Transmission

Modulating audio from the CNTL-UNIT passes through deviation setting D/A converter Q3012 to the UHF modulator portion of the VCO-UNIT mounted on the RF-UNIT. This signal is applied to varactor D4002 (HSC277) in the tank circuit of UHF VCO Q4002 (EC3H07B), which oscillates at the desired UHF transmitting frequency. The modulated VCO signal is buff-

Circuit Description

PLL Frequency Synthesizer

PLL IC Q1019 on the RF-UNIT consists of a data shift register, reference frequency divider, phase comparator, charge pump, "intermittent operation" circuit, and band selector switch. Serial PLL data from the CPU is converted into parallel data by the shift register in the PLL IC and is latched into the comparative frequency divider and reference frequency divider to set a frequency dividing ratio for each. An 11.7-MHz reference signal produced by X1001 is fed to "REF" pin 1 of the PLL IC. The internal reference frequency divider divides the 11.7MHz reference by 2,050 (or 1,640) to obtain a reference frequency of 5 kHz (or 6.25 kHz), which is applied to the phase comparator. Meanwhile, a sample of the output of VHF VCO Q4004 or UHF VCO Q4002 or 50 MHz VCO Q4005 on the VCO-UNIT, buffered by Q4006, is fed to the PLL IC, where it is divided by the internal comparative frequency divider to produce a comparative frequency which also is applied to the phase comparator. The phase comparator compares the phase between the reference frequency and comparative frequency to output

a pulse corresponding to the phase difference between them. This pulse is fed to the charge pump, and the output from the charge pump passes through a loop filter composed of L1044, R1089, C1175, and either R1090, C1192, R1103 and C1195 for VHF, or R1086, C1189, R1102 and C1194 for UHF, or R1091, C1193, R1104 and C1196 for 50 MHz, which convert the pulse into a corresponding smoothed varactor control voltage (VCV). The VCV is applied to varactors D4004 and D4013 (1SV325) in the VHF VCO tank circuit, or to varactor D4001 (HVC355B) in the UHF VCO tank circuit, or to varactors D4007 and D4008 (1SV325) in the 50 MHz VCO, to eliminate any phase difference between the reference frequency and comparative frequency, thus locking the VCO oscillation frequency to the reference crystal. The VCO frequency is determined by the frequency-dividing ratio sent from the CPU to the PLL IC. During receiver power save operation, the PLL circuit operates intermittently to reduce current consumption, for which the "intermittent operation" control circuit reduces the lock-up time.

Alignment

Meter

SINAD

AF Load

Introduction and Precautions

The VX-7R has been carefully aligned at the factory for

the specified performance across the specified amateur bands. Realignment should therefore not be necessary except in the event of a component failure. All component replacement and service should be performed only by an authorized VERTEX STANDARD representative, or the warranty policy may be voided.

The following procedures cover the sometimes critical and tedious adjustments that are not normally required once the transceiver has left the factory. However, if damage occurs and some parts are replaced, realignment may be required. If a sudden problem occurs during normal operation, it is likely due to component failure; realignment should not be done until after the faulty component has been replaced.

We recommend that servicing be performed only by authorized VERTEX STANDARD service technicians, who are experienced with the circuitry and fully equipped for repair and alignment. Therefore, if a fault is suspected, contact the dealer from whom the transceiver was purchased for instructions regarding repair. Authorized VERTEX STANDARD service technicians realign all circuits and make complete performance checks to ensure compliance with factory specifications after replacing any faulty components.

Those who do undertake any of the following alignments are cautioned to proceed at their own risk. Problems caused by unauthorized attempts at realignment are not covered by the warranty policy. Also, VERTEX STANDARD must reserve the right to change circuits and alignment procedures in the interest of improved performance, without notifying owners.

Under no circumstances should any alignment be attempted unless the normal function and operation of the transceiver are clearly understood, the cause of the malfunction has been clearly pinpointed and any faulty components replaced, and the need for realignment determined to be absolutely necessary.

Required Test Equipment

m RF Signal Generator with calibrated output level at 500 MHz m Deviation Meter (linear detector) m In-line Wattmeter with 5% accuracy at 500 MHz m 50-ohm, 10-W RF Dummy Load m 8-ohm AF Dummy Load m Regulated DC Power Supply adjustable from 3 to 15 V DC,

m Frequency Counter: 0.2-ppm accuracy at 500 MHz m AF Signal Generator m AC Voltmeter m DC Voltmeter: high impedance m UHF Sampling Coupler m SINAD Meter

Alignment Preparation & Precautions

A 10-W RF dummy load and in-line wattmeter must be connected to the main antenna jack in all procedures that call for transmission, alignment is not possible with an antenna. After completing one step, read the next step to see if the same test equipment is required. If not, remove the test equipment (except dummy load and wattmeter, if connected) before proceeding.

Correct alignment requires that the ambient temperature be the same as that of the transceiver and test equipment, and that this temperature be held constant between 68~86°F (20~30°C). When the transceiver is brought into the shop from hot or cold air, it should be allowed some time to come to room temperature before alignment. Whenever possible, alignments should be made with oscillator shields and circuit boards firmly affixed in place. Also, the test equipment must be thoroughly warmed up before beginning.

Note: Signal levels in dB referred to in the alignment proce-

dure are based on 0 dBµ=0.5 µV (closed circuit).

RF Signal

50-ohm

RF Load

Generator

In-Line

Wattmeter

Sampling

Coupler

8-ohm

Deviation

Meter

Frequency

Counter

Alignment Setup

Alignment

Test Setup

Set up the test equipment as shown below for transceiver alignment, and apply 8.7 V DC power to the transceiver. Refer to the drawings for Alignment Points.

Internal System Alignment Routine

This uses a programmed routine in the transceiver which simplifies many previously complex discrete component settings and adjustments with digitally-controlled settings via front panel buttons and LCD indications.

To begin, set the transceiver to the center of the 50 MHz, 144 MHz, 222 MHz and 430 MHz bands. Next, select the 430 MHz band, then turn the transceiver off.

Now, press and hold in the MON/F, and 0 buttons (at the same time) while powering the radio on again. The display will show the first setting. Thereafter, the frequencies used during alignment will automatically be set without action by the technician.

In the alignment process, each adjustment is selected by rotating the DIAL. Alignment is performed by:

m Pressing the V/M button; m Injecting a signal of the required frequency and lev-

el; then

m Pressing the V/M button after a level setting or ad-

justment is made. This second pressing of the MON/ F button stores the entry.

To exit the alignment routine, press the HM/RV button. After performing the system alignment in its entirety, individual settings can be returned to and adjusted should the need arise.

As each transceiver is individually optimized at the factory, the precise settings for the transceiver on your bench may be slightly different.

Main Band Alignment

PLL Reference Frequency (PLL REF)

Press the V/M button, then transmit and adjust the counter frequency to 440.000 (±300 Hz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

430 MHz band Alignment

Squelch Hysteresis Adjustment (HIS SQL)

m Rotate the DIAL for minimum squelch hysteresis. Press

the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Threshold (THLD SQL) [86]

m Inject a –15.0 dBµ RF signal (1 kHz tone @ ±3.5 kHz

deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Tight (TIGH SQL)

m Adjust the generator level to –4.0 dBµ, then press the

V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

S-Meter S-1 Adjustment (S1 LEVEL)

m Adjust the generator level to –7.0 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

S-Meter Full-Scale Adjustment (S9 LEVEL)

m Adjust the generator level to +20 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Wide-FM S-Meter S-1 Adjustment (S1 LEVEL)

m Adjust the generator level to 0 dBµ (1 kHz tone @ ±20

kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Wide-FM S-Meter Full-Scale Adjustment (S9 LEVEL)

m Adjust the generator level to +20 dBµ (1 kHz tone @

±20 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

The alignment frequency will now be automatically set

to 430.000 MHz. High TX Power Adjustment (HI POWER)

m Transmit, and adjust the output power level for 5.0 W

(±0.3 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

L3 Tx Power Adjustment (L3 POWER)

m Transmit, and adjust the output power level for 2.5 W

(±0.2 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

L2 Tx Power Adjustment (L2 POWER)

m Transmit, and adjust the output power level for 1.0 W

(±0.1 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

Alignment

L1 Tx Power Adjustment (L1 POWER)

m Transmit, and adjust the output power level for 50 mW

(+50/-30 mW) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

TX Deviation Adjustment (MAX DEV)

m Inject a 1 kHz audio tone at a level of 50 mV (rms) to

the MIC jack. Press the V/M button, then transmit and adjust the deviation for 4.5 kHz (±0.2 kHz) (USA Version: 4.2 kHz (±0.2 kHz)) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 67.0)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (+0.05/-0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 183.5)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 254.1)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

DCS Tx Deviation Adjustment (DCS DEV)

m Press the V/M button, then transmit and adjust the de-

viation for 0.6 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

Press the MON/F to activate the TX Power and Devia-

tion alignment routine.

The alignment frequency will automatically be set to

440.000 MHz (USA Version: 450.000 MHz). High TX Power Adjustment (HI POWER)

m Transmit, and adjust the output power level for 5.0 W

(±0.3 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High TX Power Adjustment (L3 POWER)

m Transmit, and adjust the output power level for 2.5 W

(±0.2 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High TX Power Adjustment (L2 POWER)

m Transmit, and adjust the output power level for 1.0 W

(±0.1 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High TX Power Adjustment (L1 POWER)

m Transmit, and adjust the output power level for 50 mW

(+50/-30 mW) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

TX Deviation Adjustment (MAX DEV)

m Inject a 1 kHz audio tone at a level of 50mV (rms) to the

MIC jack. Press the V/M button, then transmit and adjust the deviation for 4.5 kHz (±0.2 kHz) (USA Version:

4.2 kHz (±0.2 kHz)) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 67.0)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (+0.05/-0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 183.5)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 254.1)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

DCS Tx Deviation Adjustment (DCS DEV)

m Press the V/M button, then transmit and adjust the de-

viation for 0.6 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

Press the BAND button to activate the 50 MHz band

internal alignment routine.

The alignment frequency will automatically be set to

52.100 MHz.

50 MHz Band Alignment

Squelch Hysteresis Adjustment (HIS SQL)

m Rotate the DIAL for minimum squelch hysteresis. Press

the V/M button, then rotate the DIAL to select the next setting.

Alignment

Squelch Preset Threshold (THLD SQL)

m Inject a –15.0 dBµ RF signal (1 kHz tone @ ±3.5 kHz

deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Tight (TIGH SQL)

m Adjust the generator level to –4.0 dBµ, then press the V/M

button, then press the MON/F button twice. Press the V/ M button, then rotate the DIAL to select the next setting.

S-Meter S-1 Adjustment (S1 LEVEL)

m Adjust the generator level to –7.0 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

S-Meter Full-Scale Adjustment (S9 LEVEL)

m Adjust the generator level to +19 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Wide-FM S-Meter S-1 Adjustment (S1 LEVEL)

m Adjust the generator level to 0 dBµ (1 kHz tone @ ±20

kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Wide-FM S-Meter Full-Scale Adjustment (S9 LEVEL)

m Adjust the generator level to +20 dBµ (1 kHz tone @

±20 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

The alignment frequency will now be automatically set

to 50.000 MHz.

L1 Tx Power Adjustment (L1 POWER)

m Transmit, and adjust the output power level for 50 mW

(+50/-30 mW) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

TX Deviation Adjustment (MAX DEV)

m Inject a 1 kHz audio tone at a level of 50mV (rms) to the

MIC jack. Press the V/M button, then transmit and adjust the deviation for4.5 kHz (±0.2 kHz) (USA Version: (4.2 ±0.2 kHz)) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

AM Modulation (AM MOD)

m Inject a 1 kHz audio tone at a level of 100 mV (rms) to

the MIC jack. Press the V/M button, then transmit and adjust the modulation for 60% (±10%) by rotating the DIAL, then press and hold in the MON/F button for one second.

CTCSS Tx Deviation Adjustment (TN 67.0)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (+0.05/-0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 183.5)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 254.1)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High TX Power Adjustment (HI POWER)

m Transmit, and adjust the output power level for 5.0 W

(±0.3 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

L3 Tx Power Adjustment (L3 POWER)

m Transmit, and adjust the output power level for 2.5 W

(±0.2 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

L2 Tx Power Adjustment (L2 POWER)

m Transmit, and adjust the output power level for 1.0 W

(±0.1 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

DCS Tx Deviation Adjustment (DCS DEV)

m Press the V/M button, then transmit and adjust the de-

viation for 0.6 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

Press the MON/F button to activate the TX Power and

Deviation alignment routine.

The alignment frequency will automatically be set to

54.000 MHz. High TX Power Adjustment (HI POWER)

m Transmit, and adjust the output power level for 5.0 W

(±0.3 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

Alignment

High TX Power Adjustment (L3 POWER)

m Transmit, and adjust the output power level for 2.5 W

(±0.2 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High TX Power Adjustment (L2 POWER)

m Transmit, and adjust the output power level for 1.0 W

(±0.1 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High TX Power Adjustment (L1 POWER)

m Transmit, and adjust the output power level for 50 mW

(+50/-30 mW) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

TX Deviation Adjustment (MAX DEV)

m Inject a 1 kHz audio tone at a level of 50mV (rms) to

Press the BAND button to activate the 145 MHz band

internal alignment routine.

The alignment frequency will automatically be set to

145.100 MHz (USA Version: 146.100 MHz).

144 MHz Band Alignment

Squelch Hysteresis Adjustment (HIS SQL)

m Rotate the DIAL for minimum squelch hysteresis. Press

the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Threshold (THLD SQL)

m Inject a –15.0 dBµ RF signal (1 kHz tone @ ±3.5 kHz

deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Tight (TIGH SQL)

m Adjust the generator level to –4.0 dBµ, then press the

V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

AM Modulation (AM MOD)

m Inject a 1 kHz audio tone at a level of 100mV (rms) to

the MIC jack. Press the V/M button, then transmit and adjust the modulation for 60% (±10%) by rotating the DIAL.

CTCSS Tx Deviation Adjustment (TN 67.0)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (+0.05/-0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 183.5)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 254.1)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

S-Meter S-1 Adjustment (S1 LEVEL)

m Adjust the generator level to –7.0 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

S-Meter Full-Scale Adjustment (S9 LEVEL)

m Adjust the generator level to +19 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Wide-FM S-Meter S-1 Adjustment (S1 LEVEL) m Adjust the generator level to 0 dBµ (1 kHz tone @ ±20

kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Wide-FM S-Meter Full-Scale Adjustment (S9 LEVEL)

m Adjust the generator level to +20 dBµ (1 kHz tone @

±20 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

DCS Tx Deviation Adjustment (DCS DEV)

m Press the V/M button, then transmit and adjust the de-

viation for 0.6 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

The alignment frequency will now be automatically set

to 144.000 MHz.

Alignment

High TX Power Adjustment (HI POWER)

m Transmit, and adjust the output power level for 5.0 W

(±0.3 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

L3 Tx Power Adjustment (L3 POWER)

m Transmit, and adjust the output power level for 2.5 W

(±0.2 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

L2 Tx Power Adjustment (L2 POWER)

m Transmit, and adjust the output power level for 1.0 W

(±0.1 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

L1 Tx Power Adjustment (L1 POWER)

m Transmit, and adjust the output power level for 50 mW

(+50/-30 mW) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

TX Deviation Adjustment (MAX DEV)

m Inject a 1 kHz audio tone at a level of 50mV (rms) to

CTCSS Tx Deviation Adjustment (TN 67.0)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (+0.05/-0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 183.5)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 254.1)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

DCS Tx Deviation Adjustment (DCS DEV)

m Press the V/M button, then transmit and adjust the de-

viation for 0.6 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

Press the MON/F to activate the TX Power and Devia-

tion alignment routine.

The alignment frequency will automatically be set to

146.000 MHz (USA Version: 148.000 MHz). High TX Power Adjustment (HI POWER)

m Transmit, and adjust the output power level for 5.0 W

(±0.3 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High TX Power Adjustment (L3 POWER)

m Transmit, and adjust the output power level for 2.5 W

(±0.2 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High TX Power Adjustment (L2 POWER)

m Transmit, and adjust the output power level for 1.0 W

(±0.1 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High TX Power Adjustment (L1 POWER)

m Transmit, and adjust the output power level for 50 mW

(+50/-30 mW) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

TX Deviation Adjustment (MAX DEV)

m Inject a 1 kHz audio tone at a level of 50mV (rms) to

CTCSS Tx Deviation Adjustment (TN 67.0)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (+0.05/-0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 183.5)

m Press the V/M button, then transmit and adjust the de-

viation for for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 254.1)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

Alignment

DCS Tx Deviation Adjustment (DCS DEV)

m Press the V/M button, then transmit and adjust the de-

viation for 0.6 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

NOTE: The next step depends on the geographical "version"

of the transceiver being aligned:

EXP Version: Alignment of the "SUB Band " follows

(see page 18.)

USA Version: Press the BAND button to activate the 222 MHz band internal alignment routine. In this case, the alignment frequency will automatically be set to

222.000 MHz.

222 MHz Band Alignment

L2 Tx Power Adjustment (L2 POWER)

m Transmit, and adjust the output power level for 0.3 W

(±0.1 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

L1 Tx Power Adjustment (L1 POWER)

m Transmit, and adjust the output power level for 50 mW

(+50/-30 mW) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

DCS Tx Deviation Adjustment (DCS DEV)

m Press the V/M button, then transmit and adjust the de-

viation for 0.6 kHz (±0.1 kHz) by rotating DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

Press the MON/F to activate the TX Power and Devia-

tion alignment routine.

The alignment frequency will automatically be set to

224.995 MHz. High Tx Power Adjustment (L2 POWER)

m Transmit, and adjust the output power level for 0.3 W

(±0.1 W) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

High Tx Power Adjustment (L1 POWER)

m Transmit, and adjust the output power level for 50 mW

(+50/-30 mW) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

TX Deviation Adjustment (MAX DEV)

m Inject a 1 kHz audio tone at a level of 50mV (rms) to

the MIC jack. Press the V/M button, then transmit and adjust the deviation for 4.2 kHz ±0.2 kHz by rotating DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

TX Deviation Adjustment (MAX DEV)

m Inject a 1 kHz audio tone at a level of 50mV (rms) to

the MIC jack. Press the V/M button, then transmit and adjust the deviation for 4.2 kHz (±0.2 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 67.0)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (+0.05/-0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 183.5)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 254.1)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 67.0)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (+0.05/-0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 183.5)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

CTCSS Tx Deviation Adjustment (TN 254.1)

m Press the V/M button, then transmit and adjust the de-

viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

DCS Tx Deviation Adjustment (DCS DEV)

m Press the V/M button, then transmit and adjust the de-

viation for 0.6 kHz (±0.1 kHz) by rotating the DIAL, then press the V/M button. Rotate the DIAL to select the next setting.

Alignment

Press the SUB button to activate the SUB band inter-

nal alignment routine.

The alignment frequency will automatically be set to

435.100 MHz (USA Version: 440.100 MHz) on the SUB band.

SUB Band Alignment 430 MHz Band Alignment

Squelch Hysteresis Adjustment (HIS SQL)

m Rotate the DIAL for minimum squelch hysteresis. Press

the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Threshold (THLD SQL)

m Inject a –13.0 dBµ RF signal (1 kHz tone @ ±3.5 kHz

deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Tight (TIGH SQL)

m Adjust the generator level to –4.0 dBµ, then press the V/M

button, then press the MON/F button twice. Press the V/ M button, then rotate the DIAL to select the next setting.

S-Meter S-1 Adjustment (S1 LEVEL)

m Adjust the generator level to –7.0 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

S-Meter Full-Scale Adjustment (S9 LEVEL)

m Adjust the generator level to +20 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button.

Press the BAND button to activate the 50 MHz SUB

band internal alignment routine.

The alignment frequency will automatically be set to

52.100 MHz.

50 MHz SUB Band Alignment

Squelch Hysteresis Adjustment (HIS SQL)

m Rotate the DIAL for minimum squelch hysteresis. Press

the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Threshold (THLD SQL)

m Inject a –13.0 dBµ RF signal (1 kHz tone @ ±3.5 kHz

deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Tight (TIGH SQL)

m Adjust the generator level to –4.0 dBµ, then press the

V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

S-Meter S-1 Adjustment (S1 LEVEL)

m Adjust the generator level to –7.0 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

S-Meter Full-Scale Adjustment (S9 LEVEL)

m Adjust the generator level to +19 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button.

Press the BAND button to activate the 144 MHz SUB band

internal alignment routine.

The alignment frequency will automatically be set to

145.100 MHz (USA Version: 146.100 MHz).

144 MHz SUB Band Alignment

Squelch Hysteresis Adjustment (HIS SQL)

m Rotate the DIAL for minimum squelch hysteresis. Press the

V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Threshold (THLD SQL)

m Inject a –15.0 dBµ RF signal (1 kHz tone @ ±3.5 kHz

deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

Squelch Preset Tight (TIGH SQL)

m Adjust the generator level to –4.0 dBµ, then press the V/M

button, then press the MON/F button twice. Press the V/ M button, then rotate the DIAL to select the next setting.

S-Meter S-1 Adjustment (S1 LEVEL)

m Adjust the generator level to –7.0 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then press the MON/F button twice. Press the V/M button, then rotate the DIAL to select the next setting.

S-Meter Full-Scale Adjustment (S9 LEVEL)

m Adjust the generator level to +19 dBµ (1 kHz tone @

±3.5 kHz deviation), then press the V/M button, then presses the MON/F button twice. Press the V/M button.

This completes the internal alignment routine for all

bands. To save all settings and exit, press the HM/RV button.

+ 40 hidden pages