1200-Baud Fm Packet - Yaesu FT-990 Operating Manual

1200-Baud FM Packet
The equipment setup for 1200-baud FM packet
(above 29 MHz) is the same as for 300-baud packet,
except that you may want to connect the squelch
line of the tnc to pin 5 of the
PACKET
jack if you plan
to use the squelch (performance will be better,
however, if your tnc has PLL-type DCD, in which
case you can leave the squelch open and not con-
nect pinS).
Press the
PKT
mode switch until both it and the
green LED on the
FM
mode button are lit. Tuning is
Operation
Digital
Modes: AMTOR, RTTY
&
Packet
much less critical in this mode, requiring no special
adjustments. Also, the
FM MIC GAIN
control in the
top access panel has been preset at the factory for
proper deviation with typical signal levels, so you
should not need to readjust it (you should adjust
the tx audio output level of your tnc, though, if you
receive reports of distortion).
To transmit FM packet, just set the
METER
selector to
PO
and set the RF PWR control for the desired
power output.
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