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Rotate the
SELECT
knob until the menu “CAT BPS” is showing. You may have to rotate
for a while; the FT-950 has a LOT of menu options.
With “CAT BPS” showing on the screen, rotate the
CLAR/VFO-B
knob fully clockwise
until “384H” is showing. Rotate the
SELECT
knob one click clockwise until “CAT TOT” is
showing. Now rotate the
CLAR/VFO-B
dial until “100” is showing.
Rotate the
SELECT
knob one more click clockwise, until “CAT RTS” is displayed. Now
rotate the
CLAR/VFO-B
knob until “On” is displayed. Finally, press and hold the
MENU
button for 2 seconds so that these new settings take effect.
Also, be sure to set your FT-950’s
AM CAR
menu per the FT-950 instruction manual, to
select 25 watts as the AM carrier level.
Finishing Up Installation
Connect a 50-ohm coax feedline to the jack marked
ANT
on the rear of the YT-450, and
connect this to the antenna system.
If it is desired to operate the FT-450 / 950 via computer control, connect a straight-thru 9-pin
female-to-female cable (not supplied) to the jack on the YT-450 marked “
PC
”. The YT-450 will
automatically feed through any CAT commands coming in over this port to the transceiver and
vice versa. Note that any software used to control the transceiver will have to be set for 38,400
baud while connected through the YT-450.
Grounding the YT-450 tuner will enhance its performance and safety. LDG recommends that
you connect your tuner to a suitable ground; a common ground rod connected to buried radials is
preferred, but a single ground rod, a cold water pipe, or the screw that holds the cover on an AC
outlet can provide a serviceable ground. LDG strongly recommends the use of a properly
installed, high quality lightning arrestor on all antenna cables.
OPERATION
Power-up
The YT-450 is powered by the transceiver. When the YT-450 is first powered on, the
Status
LED will blink once to indicate it is functioning properly. The first time the
TUNE
button is
pressed, the YT-450 checks the connection to the transceiver. If this check fails, the
Status
LED
will blink continuously.
Possible causes for failure to detect the radio properly are an improperly seated CAT cable, a
damaged CAT cable, incorrectly selected CAT baud rate, or plugging the CAT cable into a radio
other than an FT-450 or FT-950. If checking all of these things does not correct the situation, try
turning the radio and tuner off and back on again.
Basic Tuning Operation
The YT-450 is operated from the front panel
TUNE
button on the YT-450. Two types of
tuning cycles are available; a memory tuning cycle and a full tuning cycle.
The
memory tuning cycle
attempts to tune quickly based on having previously tuned on the
present frequency selection. If the tuner previously was successful in tuning on the currently
selected frequency, the settings for that match will be loaded into the tuner relays, and checked to
see that an acceptable SWR match is found.
