YAESU VX-6E (02) PDF MANUAL

The following test equipment is necessary for complete realignment:

O RF Signal Generator with calibrated output level at 500 MHz

O Deviation Meter (linear detector)

O In-line Wattmeter with 5% accuracy at 500 MHz

O 50-ohm, 10-W RF Dummy Load

O 8-ohm AF Dummy Load

O Regulated DC Power Supply adjustable from 3 to 15 V DC, 3A

O Frequency Counter: 0.2-ppm accuracy at 500 MHz

O AF Signal Generator

O AC Voltmeter

O DC Voltmeter: high impedance

O UHF Sampling Coupler

O SINAD Meter

A 10 W RF dummy load and in-line wattmeter must be connected to the main antenna jack in all procedures that call for transmission; alignment is not possible with an antenna. After completing one step, read the next step to see if the same test equipment is required. If not, remove the test equipment (except dummy load and wattmeter, if connected) before proceeding.

Correct alignment requires that the ambient temperature be the same as that of the transceiver and test equipment, and that this temperature be held constant between 68 ~ 86 °F (20 ~ 30 °C). When the transceiver is brought into the shop from hot or cold air, it should be allowed some time to come to room temperature before alignment.

Whenever 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.

Note: Signal levels in dB referred to in the alignment procedure are based on 0 dBμ=0.5 μV (closed circuit).

Set up the test equipment as shown in the PDF for transceiver alignment, and apply 8.9 V DC power to the transceiver. Connect the RF Signal Generator and AF Generator/SINAD Meter/8-ohm AF Load through a Sampling Coupler to the transceiver’s antenna jack via an In-Line Wattmeter and a 50-ohm RF Dummy Load. Connect a Deviation Meter and Frequency Counter to the Sampling Coupler. Power the transceiver with a Regulated 8.9 VDC Power Supply.

To begin, set the transceiver to the center of the 144 MHz, 220 MHz and 430 MHz bands. Next, select the 430 MHz band, then turn the transceiver off.

Now, press and hold the [BAND], [2] and [0] buttons (at the same time) while powering the radio on again. The display will show the first setting.

Note: that the first few settings are not adjustable and are left as set from the factory.

In the alignment process, each adjustment is selected by rotating the DIAL. Alignment is performed by:

O Pressing the [V/M] button;

O Injecting a signal of the required frequency and level;

O Pressing the [V/M] button after a level setting or adjustment is made. This second pressing of the [V/M] button stores the entry.

To exit the alignment routine, press the [HOME] button.

Press the [V/M] button, then transmit and adjust the counter frequency to 440.000 (±300 Hz) by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting.

Press the [V/M] button, then inject a −12.0 dBμ RF signal (1 kHz tone @ ±3.5 kHz deviation), then rotate the DIAL for minimum squelch hysteresis, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [167])

Press the [V/M] button, then adjust the generator level to -4.0 dBu, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [136])

Press the [V/M] button, then adjust the generator level to –8.0 dBu (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [27])

Press the [V/M] button, then adjust the generator level to +20 dBu (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [66])

Press the [V/M] button, then adjust the generator level to 0 dBu (1 kHz tone @ ±20 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [53])

Press the [V/M] button, then adjust the generator level to +20 dBu (1 kHz tone @ ±20 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [77])

Press the [V/M] button, then transmit, and adjust the output power level for 5.0 W ±0.3 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [220])

Press the [V/M] button, then transmit, and adjust the output power level for 2.5 W ±0.2 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [166])

Press the [V/M] button, then transmit, and adjust the output power level for 1.0 W ±0.1 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [125])

Press the [V/M] button, then transmit, and adjust the output power level for 0.3 W ±0.1 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [95])

Inject a 1 kHz audio tone at a level of 50mV (rms) to the MIC jack. Press the [V/M] button, then transmit and adjust the deviation for 4.5 kHz ±0.2 kHz (USA Type: 4.2 kHz ±0.2 kHz) by rotating DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [65])

Press the [V/M] button, then transmit and adjust the deviation for 0.6 kHz ±0.05 kHz (USA Type: 0.8 kHz ±0.05 kHz) by rotating DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [15])

Press the [V/M] button, then transmit and adjust the deviation for 0.6 kHz ±0.05 kHz by rotating DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [15]) This completes the 430 MHz band internal alignment routine; press the [BAND] button to activate the 50 MHz band internal alignment routine.

Press the [V/M] button, then inject a –8.0 dBu RF signal (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [156])

Press the [V/M] button, then adjust the generator level to 0 dBu, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [124])

Press the [V/M] button, then adjust the generator level to -3.0 dBu (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [40])

Press the [V/M] button, then adjust the generator level to +20 dBu (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [71])

Press the [V/M] button, then adjust the generator level to +8 dBu (1 kHz tone @ ±20 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [62])

Press the [V/M] button, then adjust the generator level to +25 dBu (1 kHz tone @ ±20 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. This completes the 50 MHz band internal alignment routine; press the [BAND] button to activate the 145 MHz band internal alignment routine. (Typical default value: [83])

Press the [V/M] button, then inject a –12.0 dBu RF signal (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [171])

Press the [V/M] button, then adjust the generator level to -4.0 dBu, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [142])

Press the [V/M] button, then adjust the generator level to –8.0 dBu (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [27])

Press the [V/M] button, then adjust the generator level to +20 dBu (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [65])

Press the [V/M] button, then adjust the generator level to 0 dBu (1 kHz tone @ ±20 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [55])

Press the [V/M] button, then adjust the generator level to +20 dBu (1 kHz tone @ ±20 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [79])

Press the [V/M] button, then transmit, and adjust the output power level for 5.0 W ±0.3 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [198])

Press the [V/M] button, then transmit, and adjust the output power level for 2.5 W ±0.2 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [159])

Press the [V/M] button, then transmit, and adjust the output power level for 1.0 W ±0.1 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [124])

Press the [V/M] button, then transmit, and adjust the output power level for 0.3 W ±0.1 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [96])

Inject a 1 kHz audio tone at a level of 50mV (rms) to the MIC jack. Press the [V/M] button, then transmit and adjust the deviation for 4.5 kHz ±0.2 kHz (USA Type: 4.2 kHz ±0.2 kHz) by rotating DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [100])

Press the [V/M] button, then transmit and adjust the deviation for 0.6 kHz ±0.05 kHz (USA Type: 0.65 kHz ±0.05 kHz) by rotating DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [18])

Press the [V/M] button, then transmit and adjust the deviation for 0.6 kHz ±0.05 kHz by rotating DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. This completes the 144 MHz band internal alignment routine; press the [BAND] button to activate the 220 MHz band internal alignment routine. (Typical default value: [56])

Press the [V/M] button, then inject a −12.0 dBu RF signal (1 kHz tone @ ±3.5 kHz deviation). Press the [V/M] button, then rotate the DIAL to select the next setting. (Typical default value: [167])

Press the [V/M] button, then adjust the generator level to -4.0 dBu, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [136])

Press the [V/M] button, then adjust the generator level to –8.0 dBu (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [27])

Press the [V/M] button, then adjust the generator level to +20 dBu (1 kHz tone @ ±3.5 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [66])

Press the [V/M] button, then adjust the generator level to 0 dBu (1 kHz tone @ ±20 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [53])

Press the [V/M] button, then adjust the generator level to +20 dBu (1 kHz tone @ ±20 kHz deviation), then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [77])

Press the [V/M] button, then transmit, and adjust the output power level for 1.5 W ±0.3 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [132])

Press the [V/M] button, then transmit, and adjust the output power level for 1.0 W ±0.2 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [120])

Press the [V/M] button, then transmit, and adjust the output power level for 0.5 W ±0.1 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [103])

Press the [V/M] button, then transmit, and adjust the output power level for 0.2 W ±0.1 W by rotating the DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [89])

Press the [V/M] button, then inject a 1 kHz audio tone at a level of 50mV (rms) to the MIC jack. Press the [V/M] button, then transmit and adjust the deviation for 4.2 kHz ±0.2 kHz by rotating DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [62])

Press the [V/M] button, then transmit and adjust the deviation for 0.6 kHz ±0.05 kHz by rotating DIAL, then press the [V/M] button. Rotate the DIAL to select the next setting. (Typical default value: [29])

Press the [V/M] button, then transmit and adjust the deviation for 0.8 kHz ±0.05 kHz by rotating DIAL, then press the [V/M] button. This completes the internal alignment routine for all bands. (Typical default value: [30])

To save all settings and exit, press the [HM/RV] button.