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FCC ID: K6630493X20 
IC: 511B-30493X20 

Alignment 

 

Vertex Standard Co., Ltd. 

1

HX300 Alignment 

The HX300 has been carefully aligned at the factory for the specified performance across 

the marine band. 

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 

Standard Horizon 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 Standard Horizon 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 Standard Horizon 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, Standard Horizon, a division of 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. 

The following test equipment (and thorough familiarity with its correct use) is necessary for 

complete realignment. Correction of problems caused by misalignment resulting from use of 

improper test equipment is not covered under the warranty policy. While most steps do not 

require all of the equipment listed, the interactions of some adjustments may require that 

more complex adjustments be performed afterwards. Do not attempt to perform only a 

single step unless it is clearly isolated electrically from all other steps. Have all test 

equipment ready before beginning, and follow all of the steps in a section in the order 

presented. 

 

 

 

Summary of Contents for HX300

Page 1: ...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 circuit...

Page 2: ... connected to the main antenna jack in all procedures that call for transmission Correct 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 th...

Page 3: ...ware Alignment Mode The Software Alignment Mode has been build in the microprocessor in order to adjust and confirm the performance of transceiver The purpose is to adjust transceiver simply and to confirm the performance of transceiver smoothly Starting the alignment mode Set the channel to CH16 and then press the PWR switch while press and holding the PRESET keys Adjustment of PLL frequency Conn...

Page 4: ...signal output level to 200mVrms at 1kHz Press the SCAN DW key till Md is displayed Press or keys while pressing the PTT key to set the deviation to 4 4 0 1kHz Press VOL SQL key to fix the alignment data Adjustment of the Reference modulation Connect the linear detector to the antenna jack and connect the AF signal generator to the Alignment Jig Set the AF signal output level to 1000mVrms at 150Hz ...

Page 5: ...ion 3 0kHz deviation 1kHz modulation Set the output level to 7dBµ Press the SCAN DW key till tH is displayed Press PRESET key to obtain the squelch threshold level Press VOL SQL key to fix the alignment data This completes the Software Alignment Mode To save all settings and exit press and hold the 16 9 key for one second Then turn off the transceiver After Alignment Execute the HX300 Service Flag...

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