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FCC ID: K6630173X3D 

IC ID: 511B-30173X3D 

Alignment 

2/5

 

Vertex Standard Co,. Ltd. 

Required Test Equipment  

 

RF Signal Generator with calibrated output level at 200 MHz   

 

Deviation Meter (linear detector)  

 

AF Millivoltmeter  

 

SINAD Meter 

 

Inline Wattmeter with 5% accuracy at 200 MHz 

 

Regulated DC Power Supply: 13.8 VDC, 10A 

 

50-ohm Non-reactive Dummy Load: 30W at 200 MHz 

 

Frequency Counter: >0.1 ppm accuracy at 200 MHz 

 

AF Signal Generator  

 

DC Voltmeter: high impedance 

 

VHF Sampling Coupler 

 

AF Dummy Load: 4 Ohms, 10 W  

 

Oscilloscope 

 

Spectrum Analyzer 

 

GX3500S Marine Transceiver 

 
 
Alignment Preparation & Precautions

 

A dummy load and inline wattmeter must be 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 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 hot or cold 
air it should be allowed some time for thermal equalization with the environment before 
alignment. If 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 this procedure are based on 0 dBµ = 0.5 µV (closed 
circuit). 

 
Overview of Test Mode 

The test 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. 
 

Содержание GX1500S

Страница 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...

Страница 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...

Страница 3: ...annel to CH16 adjust TC1001 so that voltage on the TP1007 is below 3 0 V 0 1 V in the transmit mode Adjustment of Transmit Power Adjust power at high and low in the transmit mode and confirm power in the specified bandwidth Connect the wattmeter and 50 ohm dummy load to the antenna jack Use the H L key to set transceiver to high power and set the channel to CH16 With the PTT switch pressed adjust ...

Страница 4: ...to 20 00 MHz set RBW and VBW to 30 KHz and set SWP to 56 ms Adjust L1010 L1013 L1027 L1028 and L1031 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 possible value at the stop ba...

Страница 5: ...ransceiver s option connector and LCD of transceiver will show data Setup the test equipment as shown below Press and hold the H L key confirm that the position data is displayed on the LCD of transceiver Confirmation of DSC Operation Prepare the confirmation transceiver GX3500S Input below data to the confirmation transceiver in advance Input TEST to NAME of INDIVIDUAL DIRECTORY Input 123456789 t...

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