Yaesu FT DX 9000 CONTEST - 2, Руководство по эксплуатации

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Page 106 FT
DX
9000 C
ONTEST
O
PERATION
M
ANUAL
Packet operation is easily accomplished on the FT
DX
9000 Contest by connecting your TNC (Terminal Node Controller)
to the transceiver, per the illustration. “Packet” operation also applies to SSB-based AFSK data modes, such as PSK31, etc.
P
ACKET
O
PERATION
P
ACKET
S
ETUP
(
I
NCLUDING
S
UBCARRIER
F
REQUENCY
)
B
ASIC
S
ETUP
DATA
OUT
PTT
DATA
IN
①
⑤ ④
③
②
PACKET
PACKET JACK TNC
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
DATA OUT
GND
PTT
DATA IN
(SQL Control)
2 1
Before operation can commence, some basic setup proce-
dures must be performed, using the Menu, to configure
your radio for the data mode to be used.
1. Press the PKT Mode switch (# ).
For HF operation, SSB-based Data operation is generally used.
One press of the PKT switch will engage Packet operation
in the “LSB” mode (by default). Both the “PKT” and “LSB”
LEDs will become illuminated.
If you need to do FM-based 1200-baud packet on the 29/50
MHz bands, press the PKT switch once more to engage the
“PKT-FM” mode. The “PKT” and “FM” LEDs will both be-
come illuminated.
2. When the “transmit” command is received from the
TNC, the transmitter of the FT
DX
9000 Contest will
automatically be engaged. Likewise, the command to
return to receive will cause the radio to revert to the
receive mode.
If you need to adjust the output level from the radio from the
“DATA OUT” pin of the PACKET jack (pin 4), please do
so at the TNC side. For the input level from the TNC, as ap-
plied to the DATA IN pin of the PACKET jack (pin 1), please
use Menu item “No.063 MODE-PKT PKT GAIN.”
During Packet operation via the rear panel’s PACKET jack,
the front and rear panel MIC jacks are both cut off, so you
won’t have a “live microphone” problem during data opera-
tion.
Note
If you anticipate making data transmissions of longer than
a few minutes, we recommend that you use the RF PWR
control (#
) to reduce the transmitter power to 1/2 ~ 1/3
of its normal maximum.
Quick Point
PACKET Jack Specifications
DATA IN (Pin 1)
Input Level: 17mVrms
Input Impedance: 10 kOhms
DATA OUT (Pin 4)
Fixed level, does not respond to setting of AF GAIN
or SQL control.)
Output Level: 700 mVp-p max.
Output Impedance: 10 kOhms
Menu Mode Setup
MODE-PKT 062 PKT DISP 0Hz
MODE-PKT 063 PKT GAIN 128
MODE-PKT 064 PKT SHIFT 1000Hz