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FCC ID:K6610342150 

IC: 511B-10342150 

Alignment

 

3/4

 

Vertex Standard Co., Ltd.

 

 
 
 

Alignment Channel Frequencies 

 

Channel Frequency 

(simplex) 

CTCSS 
Encode 

DCS 

Encode

Narrow

/wide 

CH1 29.70MHz None  None  Wide 
CH2 33.34MHz None  None  Wide 
CH3 33.35MHz None  None  Wide 
CH4 37.00MHz None  None  Wide 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CH8 33.35MHz 

151.4Hz None  Wide 

CH9 33.35MHz None  023  Wide 

 

 

 

 

 

 

 

 

 

 

 

PLL & Transmitter  

 
Set up the test equipment as shown for transmitter

 

alignment. 

Maintain the supply voltage at 13.8 V DC for all steps. 

 

PLL VCV   

Connect the positive lead of the DC voltmeter to the test point TP1010(VCV) on the Main Unit, as 
indicated in the figure, and the negative lead to chassis ground. 

 

Set the transceiver to the band

 

high  edge

center

 frequency channel(CH2), then adjust  T1011 on the 

Unit for 7 V on the voltmeter. 
 
Key the transmitter to the band

 

high  edge frequency channel(CH4)and adjust  T1006 on the Unit for 7 V 

on the voltmeter.

  

 
Next select to the band high

 

edge

 

frequency channel(CH4), then adjust  T1005 on the Unit for 7V on the 

voltmeter. 

 

Next select to the band low edge frequency channel(CH1) and confirm about 3.1 V (2.8V – 3.4V) on the 
voltmeter. 
 
Next select to the high band (low edge ) frequency channel(CH3) and confirm about 3.7 V (3.4V – 4.0V) 
on the voltmeter. 
 
Key the transmitter, and confirm about 7 V (6.9 V – 7.1 V) on the voltmeter. 
 

Transmitter Output Power 

Select band center frequency channel, and select high power output level. 
Key the transmitter and adjust by control commands for high power from the computer for 70 ± 2 W as 
indicated on the wattmeter. 

 

  

Select band center frequency channel, and select low power output level. 
Key the transmitter and adjust by control commands for low power from the computer for 30 ± 1 W as 
indicated on the wattmeter. 
 

Transmitter Deviation  

 
Microphone Audio Modulation Level 

Select band center frequency channel, and adjust the AF generator for 25 mV (-30 dBm) output at 1 kHz 
to the microphone jack.  
 
Key the transmitter and adjust by control commands for maximum deviation from the computer for 4.2 kHz 
± 0.2 kHz deviation as indicated on the deviation meter. 

Summary of Contents for VX-5500L

Page 1: ...lignment 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 an...

Page 2: ...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 Before beginning connect the transceiver and PC using the CT 71 programming cable as described in the EEPROM Programming chapter and downloads the EEPROM data fro...

Page 3: ...frequency channel CH4 then adjust T1005 on the Unit for 7V on the voltmeter Next select to the band low edge frequency channel CH1 and confirm about 3 1 V 2 8V 3 4V on the voltmeter Next select to the high band low edge frequency channel CH3 and confirm about 3 7 V 3 4V 4 0V on the voltmeter Key the transmitter and confirm about 7 V 6 9 V 7 1 V on the voltmeter Transmitter Output Power Select band...

Page 4: ... audio test adapter as described in the box below With the transceiver set to band center frequency channel and the RF signal generator tuned to the same frequency set the generator for 3 0 kHz deviation for 25 kHz steps with 1kHz tone modulation and set the output level for 1 µV at the antenna jack Adjust by control commands for tune from the computer for optimum SINAD reducing signal generator o...

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