Yaesu VX-160U Alignment Manual

VX-160U/180UAlignment1VX-160U/180U AlignmentVX-160U/180U AlignmentVX-160U/180U AlignmentVX-160U/180U AlignmentThe VX-160U/180U has been carefully aligned at the factory for the specifiedperformance across the frequency range specified for each version. Re-alignment shouldtherefore not be necessary except in the event of component failure, or altering versiontype. All component replacement and service should only be performed by an authorizedVERTEX STANDARD representative, or the warranty policy may be void.Required Test EquipmentRequired Test EquipmentRequired Test EquipmentRequired Test Equipment CT-42 Programming Cable with CE44 Channel Programming Diskette RF Signal Generator with calibrated output level at 1GHz Deviation Meter (Linear Detector) AC Voltmeter SINAD Meter In-Line wattmeter with 5 % accuracy at 500 MHz Regulated DC Power Supply adjustable from 4 to 10 V, 3 A 50Ω Non-reactive Dummy Load: 10 W at 500 MHz Frequency Counter: ±0.2 ppm accuracy at 500 MHz AF Signal Generator DC Voltmeter: high impedanceBefore beginning alignment, connect the transceiver and PC using the CT-42Programming Cable, and run the CE44 Channel Programming Diskette, then downloadthe EEPROM data from the transceiver to the computer.Then store this data in a disk file so that it can be uploaded when alignment is finished.You should find the corresponding data file on the computer disk for the transceiverversion you are aligning, containing channel settings for the high edge, middle and lowedge of the transceiver’s frequency range in channels 1, 2 and 3, respectively. Up-loadthis file to the transceiver.Low Band Edge (Channel 1): 450.000 MHzBand Center (Channel 2): 467.500 MHzHigh Band Edge (Channel 3): 485.000 MHzNoteNoteNoteNote: Signal levels in dB referred in the alignment procedure are based on 0dBμ = 0.5μV.

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