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Problem

 

Probable Cause

 

Corrective Action

Page

 

 

Ref.

 

 

 

 

 

 

 

 

 

 

 

You cannot transmit even

1

The microphone plug was not

1

Switch OFF the power, then insert the

6

though you press Mic

 

inserted completely into the front

 

microphone plug until the locking tab

 

[PTT].

 

panel connector.

 

clicks in place.

 

 

2

You selected a transmit offset that

2

Press [F], [SHIFT] repeatedly so neither

23

 

 

places the transmit frequency

 

"+" nor "–" is visible.

 

 

 

outside the allowable transmit

 

 

 

 

 

frequency range.

 

 

 

 

 

 

 

 

 

Packet operation results in

1

Your frequency differs from the

1

Adjust your frequency using the Tuning

17

no connects with other

 

target station’s frequency.

 

control.

 

stations.

2

The modulation level from the TNC

2

Adjust the TNC modulation level

79

 

 

 

is incorrect.

 

according to the TNC instruction manual.

 

 

3

There is multi-path distortion.

3

Reorient or relocate the antenna. The

—

 

 

strongest signal does not always provide

 

 

 

 

 

the best operation on packet.

 

 

4

The TX delay of your TNC may not

4

It is recommended to set the TX delay

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be long enough.

 

parameter on the TNC to 300 ms by using

 

 

 

 

 

your computer.

 

Note: You can also use the RESET switch to initialize settings. Push the switch momentarily to do Partial Reset or press it for 1 second or longer to do Full Reset {page 35}. No confirmation message appears. Use this switch when the microcomputer and/or the memory chip malfunction because of ambient factors.

Viewed with the front panel removed

RESET switch

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