Icom IC-207H Instruction Manual page 70

14
OTHER FUNCTIONS
D 9600 bps high speed packet operation
The IC-207H supports 2 modes of 9600 bps packet opera-
tion: G3RUH and GMSK.
q Connect the IC-207H and a TNC as illustrated below.
DATA IN
GND
PTTP
w G3RUH mode can handle 16 kinds of modulated wave
forms in order to maintain a communication link.
e Set the TNC's TX DELAY to 30–50.
r Adjust the TNC frequency deviation if necessary (see page
at right).
65
TNC SIDE
TX AUDIO
GND
DATA OUT
SQ
RX AUDIO
PTT
SQL
NOTE:
• When using the PTTP terminal for packet operation, no
voice signals are transmitted from the microphone.
• When pushing [PTT] during data transmission, data
transmission is interrupted and the voice signal takes pri-
ority.
• Read the instructions supplied with your TNC carefully
before attempting packet operation with the IC-207H.
• Pin r DATA OUT is for 9600 bps operation only. This pin
cannot be used for 1200 bps operation.