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FCC ID: K6620165X40

IC IF: 511B-20165X40

Alignment

Vertex Standard Co., Ltd.

4

 Transmitter Power

ˆ

 

With the power meter, dummy load and deviation meter connected to the antenna
jack.

ˆ

 

Key the transmitter on 146.05 / 440.05 MHz. Adjust the output power is within 50
±0.5 W (144 MHz) / 40 ±0.5 W (430MHz) on the power meter. (

HI

)

ˆ

 

Key the transmitter on 146.05 / 440.05 MHz. Adjust the output power is within 20
±0.5 W on the power meter. (

MID2

)

ˆ

 

Key the transmitter on 146.05 / 440.05 MHz. Adjust the output power is within 10
±0.5 W on the power meter. (

MID1

)

ˆ

 

Key the transmitter on 146.05 / 440.05 MHz. Adjust the output power is within 5
±0.5 W on the power meter. (

LOW

)

 Receiver Sensitivity

ˆ

 

With the dummy load and SINAD meter connected to the external speaker jack.

ˆ

 

Inject a RF signal as a level of -7 dBµV to the antenna jack.

ˆ

 

Tune the receiver on 146.05 / 440.05 MHz. Adjust the SINAD is above 12 dB on the
SINAD meter.

Содержание FT-7800R

Страница 1: ...ing be performed only by authorized Yaesu 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 Yaesu service technicians realign all circuits and make complete performance checks to ensure compliance with factory...

Страница 2: ... Meter Oscilloscope Spectrum Analyzer Deviation Meter linear detector AF Milivoltmetr AF Dummy Load 4 Ohm 5 W DC Voltmeter high impedance Inline Wattmeter with 5 accuracy at 500 MHz 50 Ohm non reactive Dummy Load 100 watts at 500 MHz VHF UHF Sampling Coupler Alignment Preparation Precautions A dummy load and inline wattmeter must be connected to the main antenna jack in all procedures that call fo...

Страница 3: ... frequency is within 100 Hz of 435 05 MHz Transmitter Deviation With the wattmeter dummy load and deviation meter connected to the antenna jack Inject a 1 kHz audio signal as a level of 80 mV to pin 5 of the MIC jack pin 4 is Ground Key the transmitter on 146 05 440 05 MHz Adjust the frequency deviation is within 4 0 4 4 KHz on the deviation meter CTCSS Deviation With the wattmeter dummy load and ...

Страница 4: ...40 05 MHz Adjust the output power is within 20 0 5 W on the power meter MID2 Key the transmitter on 146 05 440 05 MHz Adjust the output power is within 10 0 5 W on the power meter MID1 Key the transmitter on 146 05 440 05 MHz Adjust the output power is within 5 0 5 W on the power meter LOW Receiver Sensitivity With the dummy load and SINAD meter connected to the external speaker jack Inject a RF s...

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