Yaesu FT-817 Technical Supplement page 22

Alignment
ceiver). Select Alignment Menu item "11 DISC-L," and
press [ ] to set this parameter.
3. Tune the transceiver to 145.943 MHz (FM mode). leave
the signal generator at 10dBµ output, as before.
4. Set the frequency of the signal generator to 145.946
MHz (3 kHz above the receiving frequency of the trans-
ceiver). Select Alignment Menu item "12 DISC-H," and
press [ ] to set this parameter.
FM Squelch Adjustment
1. Tune the transceiver to 145.940 MHz (FM mode). Confirm
that the squelch knob is turned fully counterclockwise.
2. Select Alignment Menu item "13 FM-TH1," and press
the [ ] key (without any RF input from the signal gen-
erator) to set this parameter.
3. Select Alignment Menu item "14 FM-TH2," and press
the [ ] key again.
4. Inject an RF signal from the signal generator at 3 dBµ
output, with ±3.5 kHz deviation FM of a 1 kHz tone.
Select Alignment Menu item "15 FM-TI1," and press
the [ ] key to set this parameter. 5. Select Alignment
Menu item "16 FM-TI2," leave the signal generator level
unchanged, and press the [ ] key again.
Power Supply Voltage Display Adjustment
1. Tune the transceiver to the 144 MHz band (FM mode).
Confirm that the power supply voltage is 13.8V ±0.1V
(using the DC voltmeter).
2. Select the Alignment Menu item "VCC," and adjust the
parameter so that "138" is displayed on the LCD.
Over-Current Protection Adjustment
1. Select Alignment Menu item "18 HF1-IC." Tune the
transceiver to the 1.8 MHz band (CW mode), and key
the transceiver. Adjust this parameter for 7.0 W of trans-
mission power as measured on the external wattmeter.
2. The over-current protection Alignment Menu items,
"19 HF2-IC," "20 HF3-IC," "21 50M-IC," "22 VHF-IC,"
and "23 UHF IC" should be adjusted in the same man-
ner on the 7 MHz, 21 MHz, 50 MHz, 144 MHz, and
430 MHz bands, respectively. Use the CW mode, and
the precise frequency is not critical.
RF Power Adjustment
1. Tune the transceiver to the 1.8 MHz band (CW mode).
Select Alignment Menu item "24 HF1-HI." Key the
transmitter, and adjust this parameter for 5.0 W (±0.1
W) of output power.
22
2. Select Alignment Menu item "25 HF1-L3." Key the
transmitter, and adjust this parameter for 2.5 W (±0.2
W) of output power.
3. Select Alignment Menu item "26 HF1-L2". Key down
and adjust the parameter for 1.0W (±0.2W) transmis-
sion power.
4. Select the menu item "27 HF1-L1." Key the transmitter,
and adjust this parameter for 0.5 W (±0.1 W) of output
power.
5. Other RF power adjustment menu, designated
[HF2-**], [HF3-**], [50M-**], [VHF-**], and [UHF-**]
(four adjustments each) should be adjusted in exactly
the same manner on the 7 MHz, 21 MHz, 50 MHz, 144
MHz and 430 MHz bands, respectively. Use the CW
mode, and the precise frequency is not critical.
TX Gain Adjustment
1. Select the USB mode. Inject a 1 mV audio signal at 1
kHz from the AF generator into the microphone jack
(pin 4).
2. Tune the transceiver to the 1.8 MHz band and key the
transmitter. Select Alignment Menu item "48 HF1TXG,"
and adjust this parameter for 2.5 W (±0.1 W) of output
power. Note: to "key the transmitter" with no micro-
phone connected, you may connect pin 3 of the Mic
jack to ground (pin 2).
3. The other TX gain Alignment Menu selections, desig-
nated [49 HF2TXG], [50 HF3TXG], [51 50MTXG], [52
VHFTXG], and [53 UHFTXG,] should be adjusted in
the same manner on the 7 MHz, 21 MHz, 50 MHz, 144
MHz, and 430 MHz bands, respectively.
Power Meter Sensitivity Adjustment
1. Set the mode to CW, and the output power to HIGH.
Select Alignment Menu item "54 HF1POM," and key
the transceiver.
2. Set this parameter such that 8 dots of the power meter
scale are displayed on the LCD.
3. The other power meter sensitivity Alignment Menu se-
lections, designated [55 HF2POM], [56 HF3POM], [57
50MPOM], [58 VHFPOM], and [59 UHFPOM], should
be adjusted in the same manner on the 7 MHz, 21 MHz,
50 MHz, 144 MHz, and 430MHz bands, respectively. Use
the CW mode, and the precise frequency is not critical.