Po Meter Calibration; Reverse Alc; Swr Meter Calibration; Ssb Modulator Balance - Yaesu Mark-V FT-1000MP Field Technical Supplement

PO Meter Calibration

r With the wattmeter and 50 W dummy load connected to the
antenna jack, select the CW mode and set the meter to read
power output.
r Key the transmitter, and adjust the RF PWR control for 100
watts on the external wattmeter. Then adjust VR3014 so the
transceiver's PO meter also indicates 100 watts.

Reverse ALC

r Connect the 16.6 W dummy load (or three 50 W loads in paral-
lel) to the antenna jack, preset the RF PWR control fully-clock-
wise, and select the CW mode. Key the transmitter, and adjust
VR3002 for 50 watts on the transceiver's PO meter.

SWR Meter Calibration

r Connect the 16.6 W dummy load (or three 50 W loads in paral-
lel) to the antenna jack, then preset the RF PWR control fully
clockwise. Select the CW mode, and set the meter to read SWR.
r Key the transmitter, and adjust VR3015 so the meter indicates
3.0:1 SWR (within 1 bargraph segment).
IC Meter Calibration Check
r With the wattmeter and 50 W dummy load connected to the
antenna jack, select the CW mode, and set the meter to read
IC. Preset the RF PWR control fully clockwise.
r Key the transmitter, and confirm 12A ~ 21A IC meter indica-
tion.

SSB Modulator Balance

r With the 50 dB attenuator and spectrum analyzer (or 50 W
dummy load and sampling coupler) connected to the antenna
jack, and the MIC gain control preset fully counterclockwise,
select either SSB mode. Alternatively, a separate receiver can
be used, with the transceiver connected to the dummy load.
r Set the menu function 8-9 to "-200."
r Key the transmitter, and adjust VR3012 for minimum power
output (carrier leakage, which should be lower than -50 dB) as
indicated on the spectrum analyzer or external receiver.
AM Carrier Level
r With the wattmeter and 50 W dummy load connected to the
antenna jack, select the AM mode, and set the meter to read
ALC. With no microphone input, preset the RF PWR control
to the fully clockwise position. Key the transmitter, and adjust
VR3011 for ALC meter deflection to the top edge of the ALC
zone.
COMP Meter Calibration
r Set the PROC and RF PWR controls fully clockwise, and
press the PROC button to activate the speech processor.
r Set the meter to read COMP, and preset the MIC gain control
to the 1-o'clock position. Inject a 1 kHz tone at 2 mV level to
the mic jack, and adjust VR2007 so that the transceiver's
COMP meter deflects to the 10 dB mark on the COMP scale.
FM Carrier Frequency
r With the 50 dB attenuator and frequency counter (or 50 W
dummy load and sampling coupler) connected to the antenna
jack, preset the FM mic gain control fully counter-clockwise,
select the FM mode, and tune to 29.0000 MHz. Key the trans-
mitter, and adjust L2026 for 29.0000 MHz (±50 Hz) on the
frequency counter.
FM & CTCSS Tone Deviation
r With the 50 dB attenuator and linear detector (or 50 W dummy
load and sampling coupler) connected to the antenna jack, se-
lect the FM mode, and tune to 29.2000 MHz.
r Set the FM mic gain control fully clockwise, and inject a 1 kHz
tone at 10 mV level to the mic jack. Key the transmitter, and
adjust VR2009 for ±2.3 kHz (±0.1 kHz) on the linear detector.
r Select the 88.5 Hz (default) subaudible tone, and press the RPT
button to activate CTCSS operation. Key the transmitter and
with no microphone input, and adjust VR2008 for 0.5 kHz
±0.1 kHz on the liner detector.
FM Mic Gain
r With the 50 dB attenuator and linear detector (or 50 Ω dummy
load and sampling coupler) connected to the antenna jack, tune
to 29.200 MHz, and select FM mode.
r Inject a 1.8 mV signal at 1 kHz to the MIC jack. Key the trans-
mitter, and adjust VR6807 for 1.75 kHz ±0.1 kHz on the lin-
ear detector.
Transmitter Carrier Point
r Turn the transmitter off, then press and hold in the FAST and
LOCK buttons (near main VFO knob), then turn the transceiver
on.
r Recall menu function 9-0 and select "t-LsbcAr" using the
SUB VFO-B dial.
r Select the LSB mode and then inject a 1 kHz tone to the mic
jack. Adjust the injection level to the point where the ALC meter
no longer deflects.
r Adjust the injection frequency (within 800 ~ 2000 Hz) for peak
RF output, then adjust the injection level for 80 W RF output.
r Set the injection frequency to 350 Hz, and adjust the MAIN
VFO-A knob for 20 W RF output.
r Select "t-uSbcAr" using the SUB VFO-B knob, and select the
USB mode. Inject a 1-kHz tone to the mic jack, and adjust the
injection level to the point where the ALC meter no longer
deflects.
r Adjust the injection frequency (from 800 ~ 2000 Hz) for peak
RF output, then adjust the injection level for 80 W RF output.
r Set the injection frequency to 350 Hz, and adjust the MAIN
VFO-A knob for 20 W RF output.
Alignment
3-9