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14
OTHER FUNCTIONS
65
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.
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.
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).
DATA IN
SQL
PTT
RX AUDIO
GND
TX AUDIO
TNC SIDE
GND
PTTP
SQ
DATA OUT