Packet Operation; Packet Setup (Including Subcarrier Frequency); Basic Setup - Yaesu FT-950 Operating Manual

P O
ACKET
Packet operation is easily accomplished on the FT-950 by connecting your TNC (Terminal Node Controller) to the trans-
ceiver, per the illustration. "Packet" operation also applies to SSB-based AFSK data modes, such as PSK31, etc.
1
-TUNE
TO
GND
P
ACKET
Before operation can commence,
some basic setup procedures must
be performed using the Menu, to
configure your radio for the data
mode to be used.
1. Press the [ RTTY/PKT ] button, briefly, to toggle the
selected Packet mode. Press the [ RTTY/PKT ] button
to toggle the mode between "PKT-LSB
LSB". LSB LSB LSB LSB
A :
DVICE
When both " " and "
display, the mode is LSB SSB-based Data opera-
tion which is generally used for HF operation.
If you need to do FM-based 1200-baud packet on
the 29/50 MHz bands, press and hold in the [ RTTY/
PKT ] button repeatedly until the "
icons appear on the display, to engage the "PKT-
FM" mode.
To operate USB SSB-based Data modes, press and
hold in the [ RTTY/PKT ] button repeatedly until
the " " and "
play, the FT-950 is configured for Packet opera-
tion in the "USB" mode.
2. When the "transmit" command is received from the
TNC, the transmitter of the FT-950 will automatically
be engaged. Likewise, the command to return to re-
ceive will cause the radio to revert to the receive mode.
Page 100
PERATION
ANT
DC IN
2
INPUT: DC 13.8 V
22 A
EXT
FROM ROT LINEAR TUNER PTT REC REM SPKR
( I
S
ETUP NCLUDING
M I
ENU TEM
050 DATA DT GAIN
051 DATA OUT LVL
052 DATA VOX DLY
B
ASIC
PKT-LSB" and "RTTY-
PKT-LSB PKT-LSB RTTY- RTTY-
PKT-LSB RTTY- RTTY-
" icons appear on the
" and "
" icons are shown on the dis-
-TUNE DMU CAT
KEY
RTTY/PKT JACK TNC
Pin 1 ( DATA IN ) DATA OUT
Pin 2 ( GND ) GND
(DATA PTT) PTT
Pin 3
Pin 4 (FSK) (No Connection)
(DATA OUT) DATA IN
Pin 5
(SQL OUT) (SQL Control)
Pin 6
S
UBCARRIER
A V
VAILABLE ALUES
0 ~ 100 053 DATA V GAIN
0 ~ 100 054 DADA PKTDISP
30 ~ 1000 ( ms )
055 DATA PKT SFT
S
ETUP
A :
DVICE
If you need to adjust the output level from the "DATA
OUT" pin (pin 5) of the RTTY/PKT jack on the rear
panel of the transceiver, please use Menu item "051
DATA OUT LVL". For the input level from the TNC, as
DATA OUT LVL DATA OUT LVL DATA OUT LVL DATA OUT LVL
applied to the DATA IN pin (pin 1) of the RTTY/PKT
jack, please use Menu item "050 DATA DT GAIN
During Packet operation via the rear panel's RTTY/
PKT jack, the front panel MIC jack is cut off, so you
won't have a "live microphone" problem during data
" operation.
N :
OTE
If you anticipate making data transmissions of longer than
a few minutes, we recommend that you reduce the trans-
mitter power to 1/3 ~ 1/2 of its normal maximum via the
Menu item "111 TGEN TX PWR
111 TGEN TX PWR 111 TGEN TX PWR 111 TGEN TX PWR 111 TGEN TX PWR".
Q P :
UICK OINT
RTTY/PKT Jack Specifications
DATA IN (Pin 1)
Nominal Input Level: 50 mVp-p
Impedance: 10 k-Ohms
DATA OUT (Pin 5)
Maximum Output Level: 100 mVp-p
Impedance: 10 k-Ohms
FT-950 O
DATA DATA
IN OUT PTT
)
F
REQUENCY
M I A
ENU TEM VAILABLE
0 ~ 100
–3000 ~ +3000 ( Hz )
–3000 ~ +3000 ( Hz )
050 DATA DT GAIN 050 DATA DT GAIN 050 DATA DT GAIN 050 DATA DT GAIN".
PERATING
V
ALUES
051 051
051 051
M
ANUAL