Kantronics KPC-4 - Page 61

CW Mode
KAM only
Several parameters can be set for the default values you would like to use when
entering the CW Mode of operation. These parameters, and their factory defaults are
listed here for your reference.
CWBand 200
CWSpeed 25
CWTone 750
PROsign $5C
If you want to change any of these, simply type the command name followed by the
new value you wish to use for your default (e.g. CWB 30). Then you should PERM
these changes to save them so the KAM will remember them the next time you turn
the power on. The CWBAND command will set the audio bandwidth (in Hertz) for the
CW filtering. The CWTONE command sets the center frequency in the CWBAND for
the audio tone. CWSPEED controls the default receive speed used if you enter the CW
Mode with no optional speed specified. The PROSIGN command defines the character
used as a "lead in" to indicate that the next two characters are to be combined as a
PROSIGN.
To enter the CW operating mode of the KAM, type CW at the cmd: prompt. This will
place the KAM into receive mode at the default speed. If you desire to enter CW Mode
at a different speed, just use the command CW nn — where nn is the speed (5-99) that
you desire. The KAM will attempt to lock to the speed of the incoming CW signal, but
in order for this to operate quickly, the KAM must be set to within 20 WPM of the
received signal speed.
After you enter the CW command, your screen will display the current transmit and
receive speed:
-25-25-
This indicates that you are set to send and receive at 25 words per minute. Now tune
in the station you wish to receive. You should tune SLOWLY and watch the bargraph
tuning indicator on the KAM. When the station is properly tuned, the bargraph should
deflect fully to the right. Tuning will depend on several factors, including receiver
stability, internal filtering in your receiver, the CWBAND setting of your KAM (audio
bandwidth), and the speed with which you turn the receiver tuning dial. The most
common problem encountered in tuning CW with the KAM is moving the tuning dial
too quickly for the KAM to indicate full deflection. Once you have tuned to a station,
the KAM will track the receive speed. You can lock your transmit speed to that of
the received signal by entering a Ctrl-C L directive (hold the control key and press C,
then release both keys, then type the letter L). To unlock the KAM transmit speed and
allow the KAM to further track the incoming signal speed, type a Ctrl-C U directive.
You may use the Ctrl-C U directive at any time to see the current transmit and
receive speed.
A o Ys |
© Copyright 1989, 1990, Kantronics, Inc. All Rights Reserved. S
Duplication of this manual or the firmware without Aug. 13, 1990 _ Version 3.0
permission of Kantronics, Inc. is prohibited. Operations Manual