8
F. Winlink VHF Operation — Hardware Setup
The information in this section is for reference only. The radio is set up for Winlink
using the Timewave PK-96 TNC, and you should not need to access these settings in
normal operation.
The TNC is connected to the radio’s DATA2 connector. See Figure 4.
Figure 4
Several configuration parameters affect the TNC performance. These are found in the
SET
mode under the
Connectors
and
Function
menus. The IC-7100 User Guide is a little
fuzzy on the details. By experimentation, here is what I found.
Parameter
Setting Explanation
Connectors
Menu
DATA OFF MOD
MIC
Sets the source of transmitted audio when in FM mode
DATA MOD
ACC
Sets the source of transmitted audio when in FM-D (data)
mode.
DATA MOD Level
50%
Sets the transmitted audio level coming from the DATA2 or
ACC connector
ACC/USB AF Level
35%
Sets the level of received audio sent to the ACC, USB, and
DATA2 outputs. Note: the received audio is unsquelched
and independent of the radio’s front
-panel volume control.
ACC/USB Output
Select
AF
Set to IF when using an external Digital Radio Mondiale
decoder; otherwise, set to AF.
FUNCTION
Menu
RF/SQL Control
Auto
Knob functions as a conventional RF Gain control in CW and
SSB modes, and as a conventional squelch control (with RF
gain fixed at maximum) in AM and FM modes.
