Hal Communications CWR6850, Instruction Manual

Page: 13 / 64

CHAPTER 3 PAGE 13
3.2 Receiving RTTY signals
As a first step, preset the CWR6850 front panel switches as follows:
RESET ON = Press and release
FILTER ON = Off (button out)
SPACE / NARROW = Off (button out)
CWID A / CWID B = CWID B (button in)
DISPLAY: PAGE ON = No action at present (button out)
MODE A / MODE B = MODE A (button out)
CW / RTTY = RTTY (button in)
ASCII / BAUDOT = BAUDOT (button in)
LTR ON = No action at present (button out)
FIG ON = No action at present (button out)
LOCK - U.O.S. ON = ON (button in)
NOR / REV = NOR (button out)
BAUD = 45.5 (left button in; others out)
SHIFT = 850 (right button in; others out)
TONE = LOW (right button in)
RX / TAPE = RX (button out)
INPUT (slide control) = 5 (mid-position)
VOLUME (slide control) = 5 (mid-position)
SPEED (slide control) = 5 (mid-position)
FINE (slide control) = 0 (detent at mid-position)
SEND / AUTO / RECEIVE = RECEIVE (lever down)
ON / POWER = ON (lever up)
FSK DEMOD (rear panel) = INT
AFSK GAIN (rear panel) = Maximum clockwise rotation
BRIGHT (rear panel) = Maximum clockwise rotation
After the cathode ray tube (CRT) has "warmed-up" you should see the following features on the
screen:
1. Blank upper section of screen except for receive cursor on left side approximately 8
lines up from bottom. The cursor is a solid green square, indicating the position at
which received text will be first displayed.
2. Three rows of dots at the bottom of the screen representing part of the transmit buffer
storage area. Transmit features are discussed in more detail in Chapter 4.
3. A reverse video number "1" in the lower right section of the screen, indicating display
of page 1. Display pages will be discussed in greater detail in the following sections.
4. A letter "P" to the left of the reverse video page number. The "P" signifies that the
printer output is enabled. Other status indicator letters will be displayed in this line as
various options are invoked.