User's Manual

50
7 SPECIALIZED COMMUNICATIONS
PREPARATION
1 Connect the transceiver to your personal
computer (via an external TNC or MCP if desired).
• See “COMPUTER” {page XX} and “MCP AND
TNC” {page XX}.
2 Install an appropriate terminal program onto the
personal computer.
• A variety of freeware and shareware programs
can be obtained in various ways. Consult your
reference material or other “packeteers”.
3 Initiate the terminal program and set the following
parameters on the personal computer:
• Transfer rate (TNC/MCP <–> Computer):
9600 bps
• Data length: 8 bit
• Stop bit: 1 bit
• Parity: Non
• Flow control: Hardware
4 Press [A/B] to select VFO A or VFO B.
5 Access Menu No. 46 and select the main band or
the sub-band (default) as the data band.
• “TNC” appears on the data band.
• If you are using an external TNC or MCP,
access Menu No. 50E to make this selection.
The default is main band.
6 Access Menu No. 47 and select 1200 bps (default)
or 9600 bps as the transfer rate between TNCs.
• You must select the same transfer rate as the
target station.
• If using an external TNC or MCP, access Menu
No. 50F to make this selection. The default is
1200 bps.
7 Select an operating frequency.
8 Press [LSB/USB] or [FM/AM] to select LSB, USB,
or FM mode.
9 Access Menu No. 50A and select ON to activate
the packet filter.
10 Turn the LO/ WIDTH control to select the narrow
or wide filter bandwidth.
• “NAR” or “WID” appears to indicate the current
selection.
If you are using an external TNC or MCP, proceed
with the subsequent steps.
11 Following the instructions provided with your TNC
or MCP, enter the calibration mode so that you
can generate a mark condition.
• “RX” disappears and “TX” appears.
12 Access Menu No. 50B to select the appropriate AF
input level.
• Select a low input level, so long as the ALC
meter reflects.
13 Exit the calibration mode.
• “TX” disappears and “RX” appears.
14 Access Menu No. 50C to select the appropriate
AF output level.
• You cannot use the AF control to make this
adjustment.
• If you have selected sub-band in step 5,
access Menu No. 50D instead.
The frequencies (measured in kHz) commonly used
for Packet are listed below:
DCD SENSE
You can also select the method for inhibiting the built-
in TNC from transmitting. Access Menu No. 48 and
select one of the two methods. The default is “TNC
BAND”.
TNC BAND:
The TNC does not transmit when signals are present
on the TNC (data) band.
MAIN&SUB:
The TNC does not transmit when signals are present
on the main band or sub-band.
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