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FCC ID: K6620305X30 

IC IF: 511B-20305X30 

Alignment

 

FTM-10SR Alignment 

 

Introduction and Precautions 

The FTM-10SR has been carefully aligned at the factory for the specified performance 

across the 144 MHz and 430 MHz amateur bands. 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 Yaesu 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 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 

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, Yaesu 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. 

Vertex Standard Co., Ltd. 

Summary of Contents for FTM-10SR

Page 1: ...d 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 specifications...

Page 2: ...nalyzer Deviation Meter linear detector AF Milivoltmetr AF Dummy Load 4 Ω 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 for transmission except where spec...

Page 3: ...io signal as a level of 50 mV to the microphone input port Key the transmitter on 146 05 and 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 deviation meter connected to the antenna jack Key the transmitter on 146 05 and 440 05 MHz Adjust the frequency deviation is within 0 65 0 75 kHz on the deviation meter D...

Page 4: ... within 1 0 5 W on the power meter LOW Key the transmitter on 440 05 MHz Adjust the output power is within 7 0 5 W on the power meter HI Key the transmitter on 440 05 MHz Adjust the output power is within 5 0 5 W on the power meter MID Key the transmitter on 440 05 MHz Adjust the output power is within 1 0 5 W on the power meter LOW Receiver Sensitivity With the dummy load and SINAD meter connecte...

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