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FCC ID: K6630053X30

IC ID: 511B-30053X30

Alignment

6/7

Vertex Standard Co,. Ltd.

Confirmation of Weather Alert Tone

In the weather channel mode, when transceiver receives the specific emergency tone
(1050 Hz), weather alert tone will be output (Weather Alert Operation). The Weather Alert
mode will be active when a NOAA weather channel is in memory and radio is in memory
scan or P-scan mode.

-- Confirmation --

ˆ

  Connect the standard signal generator (SSG) to the antenna jack.

ˆ

  Squelch position set to tight.

ˆ

 Press 

the 

SCAN

 key and start to Memory Scan mode.

ˆ

  Set the SSG to 163.275 MHz (WX10) and output level of the SSG to 20 dBµV, ±3.0

KHz deviation with 1050 Hz tone modulation.

ˆ

  Set the output of the SSG to ON.

ˆ

  Confirm that the channel of transceiver stops at WX10 and the transceiver outputs the

weather alert tone (1050 Hz).

Confirmation of receiver NMEA data

Input NMEA format data output from GPS receiver to NMEA terminal A of transceiver and
display it to the LCD of the transceiver.
NMEA format data output from GPS receiver is applied to NMEA terminal of transceiver’s
option connector and LCD of transceiver will show data.

-- Confirmation --

ˆ

  Setup the test equipment as shown below.

ˆ

  Press and hold the 

H/L

 key, confirm that the position data is displayed on the LCD of

transceiver.

Confirmation of DSC Operation

-- Confirmation --

ˆ

  Prepare the confirmation transceiver (GX1255S).

ˆ

  Input below data to the confirmation transceiver in advance.

-

  Input “TEST” to NAME of INDIVIDUAL DIRECTORY

-

  Input “123456789” to MMSI of INDIVIDUAL DIRECTORY

-

  Input “123456780” to local MMSI

-

  Channel 13 in U.S.A. mode

ˆ

  Setup the test transceiver as follows:

-

  Channel 21 in U.S.A.

ˆ

  In 3 seconds, send the INDIVIDUAL CALL from the confirmation transceiver.

ˆ

  Confirm that the test transceiver receives the INDIVIDUAL CALL from the confirmation

transceiver and outputs the beep.
Press the 

CALL/SET

 key of the test transceiver and turn off the beep.

Summary of Contents for GX1256S

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

Page 2: ...etermine 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 held constant between 20 C and 30 C 68 F and 86 F When the transceiver is brought into the shop from ho...

Page 3: ...transmission C Scan the channels between WX10 and EXP04 in the SCAN mode Starting Test Mode Confirm that PWR VOL switch is off and short the TEST points Turn on the PWR VOL switch while press and holding the DIST and DW keys Confirmation of VCO Confirmation Connect the DC voltmeter to the test point LOCK TP Use the UP DOWN key to set the channel to EXP04 confirm that voltage on the test point is o...

Page 4: ...cy Adjust the frequency in the transmit mode and local frequency in the receive mode Adjustment Setup the test equipment as shown below Set the channel to CH16 With the PTT switch pressed adjust TC1001 so that RF frequency is 156 80000 MHz 50 Hz Adjustment and Confirmation of Deviation Adjust deviation in the transmit mode Adjustment Setup the test equipment as shown below Set the channel to CH16 ...

Page 5: ...yzer to 159 00 MHz set SPAN to 20 00 MHz set RBW and VBW to 30 KHz and set SWP to 56 ms Adjust T1001 T1002 T1003 T1004 and T1005 until the wave form shown in below is obtained Note Adjust the output of the tracking generator so that RF AMP and spectrum analyzer will not saturate Figure shows the reference wave form The wave form varies with measuring instruments It is impotent to take the lowest p...

Page 6: ...ta Input NMEA format data output from GPS receiver to NMEA terminal A of transceiver and display it to the LCD of the transceiver NMEA format data output from GPS receiver is applied to NMEA terminal of transceiver s option connector and LCD of transceiver will show data Confirmation Setup the test equipment as shown below Press and hold the H L key confirm that the position data is displayed on t...

Page 7: ...I is displayed in the LCD of the test transceiver Confirm that the confirmation transceiver receives the response from the test transceiver and outputs beep Press the CALL SET key of the confirmation transceiver and turn off the beep Simultaneously confirm that TEST of test transceiver s MMSI is displayed in the LCD of the confirmation transceiver ...

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