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FCC ID: K6630483X3D 

IC: 511B-30483X3S 

Alignment 

3/5

 

Vertex Standard Co., Ltd. 

Overview of the Test Mode 

The test mode has been built in the microprocessor in order to confirm the performance 

of transceiver. 

The purpose is to adjust transceiver simply and to confirm the performance of 

transceiver smoothly. 

 

(A)  Expansion channels “EXP01 - EXP07” will be set as follows: 

DISPLAY 

RX Frequency  

TX Frequency 

EXP01 

156.050 MHz 

156.050 MHz 

EXP02 

157.425 MHz 

157.425 MHz 

EXP03 

163.275 MHz 

158.675 MHz 

EXP04 

155.050 MHz 

155.050 MHz 

EXP05 

162.025 MHz 

162.025 MHz 

EXP06 

163.575 MHz 

158.975 MHz 

EXP07 

159.050 MHz 

159.050 MHz 

 

(B)  In CH70, every time you are in transmit mode, (every time you press PTT), the 

following test tone can be outputted: 

1st transmission:  Synthetic tone of 1300 Hz and 2100 Hz 

2nd transmission: 1300 Hz 

3rd transmission:  2100 Hz 

4th transmission:  No modulation 

5th transmission:  Return to 1st transmission 

(C)  Scan the channels between EXP03 and EXP04 in the SCAN mode. 

(D)  In the test mode, a transmit time-out timer function (TOT) becomes off. 

(E)  A user’s MMSI is set to “123456789” for DSC tests temporarily. 

 

Starting the Test Mode 

Press the [

PWR

] switch while pressing and holding the [

DISTRESS

] and [

Soft 1

] keys to 

turn the radio on. 

 

Note: [Soft 1] is left side key under the LCD display. 

 

Confirmation of Main VCO and Sub VCO (CH70) 

ˆ

  Connect the DC voltmeter to the test point (LOCK TP). 

ˆ

  Set the channel to 

EXP04

. Confirm that the voltage of the main VCO on the 

TP1006

 is 

more than 1 V during receiving. 

ˆ

  Set the channel to 

EXP06

. Confirm that the voltage of the main VCO on the 

TP1006

 is 

less than 4V during receiving. 

ˆ

  Confirm that the voltage of the sub VCO on the 

TP1005

 is from 1V to 4V during 

receiving. 

Summary of Contents for GX1600

Page 1: ...e 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 Standard Horizon a division of VERTEX STANDARD must reserve the right to change circu...

Page 2: ...orrect alignment is not possible with an antenna After completing one step read the following step to determine whether the same test equipment will be 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 ...

Page 3: ...nthetic tone of 1300 Hz and 2100 Hz 2nd transmission 1300 Hz 3rd transmission 2100 Hz 4th transmission No modulation 5th transmission Return to 1st transmission C Scan the channels between EXP03 and EXP04 in the SCAN mode D In the test mode a transmit time out timer function TOT becomes off E A user s MMSI is set to 123456789 for DSC tests temporarily Starting the Test Mode Press the PWR switch wh...

Page 4: ...he PTT key to set the power to 0 8 0 1W Press SET key to fix the alignment data Adjustment of the Maximum Deviation Connect the linear detector to the antenna jack and connect the AF signal generator to the microphone jack Set the AF signal output level to 200mVrms at 1kHz Press the ITEM key till 02 Devi is displayed Press or keys while pressing the PTT key to set the deviation to 4 4 0 1kHz Press...

Page 5: ...onnect the RF signal generator to the antenna jack Set the output frequency at 156 5250MHz with standard modulation 3 0kHz deviation 1kHz modulation Set the output level to 4dBµ Press the ITEM key till 06 CH70 SQL is displayed Press GET key to obtain the DSC squelch threshold level Press SET key to fix the alignment data Adjustment of DC VOLT Set the DC power supply to 13 8VDC Press the ITEM key t...

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