FRONT PANELS
7
Ten Segment LED Bargraph
The bargraph provides a visual indication of the received HF signal. The end segments, labeled
MARK and SPACE, blink alternately on a properly tuned RTTY/ASCII/AMTOR or Packet signal. In
CW Mode the left end (MARK) of the bargraph illuminates when no signal is present and the right
end (SPACE) lights when a signal is detected. In addition, when your PTT line is being keyed to
transmit on the HF port, the LED bargraph will be blanked out. The bargraph may be used to tune
WEFAX if the audio from the WEFAX signal is connected to the HF radio port as well as the VHF
port. Between picture transmissions, most WEFAX stations transmit a SPACE signal.
KPC-4
The front panel has a power switch and nine LEDs. There are eight LEDs used as operating status
indicators and one for power. The front panel is divided into four sections, each section containing
two operating status LEDs. Each section is separated by a white color bar. Each LED has the func-
tion indicated below:
PORT 1
XMIT
– This LED will illuminate when the
KPC-4
is keying the PTT line of your radio attached to
radio Port 1.
RCV
– This LED will illuminate when you are receiving data from your radio attached to radio
Port 1.
STREAM
CON
– This LED will illuminate when you have a Packet connection on the current stream. The
current stream is the stream to which the I/O is directed. (See STREAMSW in the Commands Man-
ual.)
STA
– This LED will illuminate when you have unacknowledged packets on the current stream.
PORT 2
XMIT
– This LED will illuminate when the
KPC-4
is keying the PTT line of your radio attached to
radio Port 2.
RCV
– This LED will illuminate when you are receiving data from your radio attached to radio
Port 2.
