11 SPECIALIZED COMMUNICATIONS

PREPARATION

If you are using an external TNC or MCP, proceed

1 Connect the transceiver to your personal

with the subsequent steps.

11 Following the instructions provided with your TNC

computer (via an external TNC or MCP if desired).

or MCP, enter the calibration mode so that you

• See “COMPUTER” {page 93} and “MCP AND

can generate a mark condition.

TNC” {page 95}.

• The MAIN band LED changes from green (RX)

2 Install an appropriate terminal program onto the

to red (TX).

personal computer.

12 Access Menu No. 50B to select the appropriate AF

• A variety of freeware and shareware programs

input level.

can be obtained in various ways. Consult your

• Select a proper input level, so that the ALC

reference material or other “packeteers”.

meter reflects within the ALC zone.

 

3Initiate the terminal program and set the following

 

parameters on the personal computer:

 

13 Exit the calibration mode.

 

 

 

 

 

• Transfer rate (TNC/MCP <–> Computer):

 

• The MAIN band LED changes from red (TX) to

 

 

green (RX).

 

 

9600 bps (default setting)

 

 

 

 

 

 

 

• Data length: 8 bit

 

 

14 Access Menu No. 50C to select the appropriate

 

• Stop bit: 1 bit

 

 

AF output level.

 

 

 

 

• You cannot use the AF control to make this

 

• Parity: Non-parity

 

 

 

 

 

adjustment.

 

 

• Flow control: Hardware

 

 

 

 

• If you have selected sub-band in step 5,

 

 

 

 

4

Press [A/B] to select VFO A or VFO B.

 

access Menu No. 50D instead.

5

Access Menu No. 46 and select the main band or

 

The frequencies (measured in kHz) commonly used

 

the sub-band (default) as the data band.

 

for Packet are listed below:

 

• “TNC” appears on the data band.

 

 

 

 

 

U.S.A./ Canada

ARU Region 1 (Europe/ Africa)

 

• If you are using an external TNC or MCP,

 

 

 

 

 

 

access Menu No. 50E to make this selection.

 

1800 ~ 1830

 

The default is main band.

 

 

 

6

 

3620 ~ 3635

3590 ~ 3600

Access Menu No. 47 and select 1200 bps (default)

 

 

 

 

 

7080 ~ 7100

 

or 9600 bps as the transfer rate between TNCs.

 

 

 

 

 

 

• You must select the same transfer rate as the

 

10140 ~ 10150

 

target station.

 

 

 

 

 

 

 

14095 ~ 14099.5

14089 ~ 14099, 14101 ~ 14112

 

• If you are using an external TNC or MCP,

 

 

 

 

 

 

 

18105 ~ 18110

 

access Menu No. 50F to make this selection.

 

 

 

 

 

 

The default is 1200 bps.

 

21090 ~ 21100

21100 ~ 21120

7

Select an operating frequency.

 

 

 

 

28120 ~ 28189

28120 ~ 28150, 29200 ~ 29300

8

Press [LSB/ USB/ AUTO] or [FM/ AM/ NAR] to

 

 

 

 

50600 ~ 50780

 

select LSB, USB, or FM mode.

 

 

 

9

 

144910 ~ 145090

Access Menu No. 50A and select ON to activate

 

 

 

 

 

440975 ~ 441075

430050 ~ 431025

 

the DSP packet filter for the main transceiver.

 

10

Turn the HI/ SHIFT control to select the center

 

 

 

 

frequency of the packet mode. You can further

 

DCD SENSE

 

 

select either “NAR” (narrow) or “WID” (wide) for

 

 

 

the receiver filter width by turning the LO/ WIDTH

 

You can also select the method for inhibiting the built-

 

control.

 

 

 

 

 

in TNC from transmitting. Access Menu No. 48 and

 

 

 

 

 

 

 

 

select one of the two methods. The default is “TNC

 

Center Frequency

Operating Mode

 

 

BAND”.

 

 

1000 Hz

PSK31

 

TNC BAND:

 

 

 

 

 

 

 

 

1700 Hz

Packet (AFSK 1200 bps)

 

The TNC does not transmit when signals are present

 

 

 

 

on the TNC (data) band.

 

2210 Hz

Packet (AFSK 300 bps)

 

 

 

 

 

 

 

 

MAIN&SUB:

 

 

PSK

PSK

 

 

 

 

 

 

 

 

 

The TNC does not transmit when signals are present

 

Note:

 

 

 

 

on the main transceiver or sub-receiver.

The packet (9600 bps) operation is not affected by the DSP packet filter settings.

The DSP packet filter works only on the main transceiver.

50