Vertex Standard VX-410 service manual Alignment tool outline

Alignment

Set up the test equipment as shown below for trans- ceiver alignment, and apply 7.5V DC power to the trans- ceiver.

			RF Signal
			Generator
Inline Wattmeter
	RF Sampling
Deviation Meter			Transceiver
	Coupler
	CT-42 connection	MIC/EAR
Frequency	Cable
			Power Supply
Counter	PC
			7.5V DC

COM port

The transceiver must be programmed for use in the intended system before alignment is attempted. The RF parameters are loaded from the file during the alignment process.

In order to facilitate alignment over the complete op- erating rang of the equipment, it is recommended that the channel data in the transceiver be preset as per the chart below.

Channels	Frequency	CTCSS Tone	DCS code
Low Band Edge	450.000 MHz	–	–
(Channel 1)
Band Center	470.000 MHz	151.4 Hz	–
(Channel 2)
High Band Edge	490.000 MHz	–	627
(Channel 3)

The alignment tool outline

Installation of the Alignment tool

The “alignment mode” is a software-based protocol, accessed by an “Alignment Mode” command from the computer while switching the transceiver on. It is oper- ated by the alignment tool automatically. During use of the alignment mode, normal operation is suspended. The alignment tool program provides all needed operation ca- pability.

Alignment Sequence

Although the data displayed on the computer’s screen during alignment is temporary data, it is important you follow the basic alignment sequence precisely, so that the displayed data and the data loaded into the transceiver are identical.

Basic Alignment Sequence

1.Enter the alignment mode

2.Upload data from transceiver

3.Align data

4.Download data to transceiver

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