Hal Communications ST-6000, Инструкция по эксплуатации

Страница: 29 / 70

4-2
INDICATOR FUNCTIOIN
POWER Indicates AC power on when lit
AUTO Indicates when the autostart circuit will allow passage of the data to the printer.
This lamp is on whenever the autostart senses a valid TTY signal OR if the AU-
TOSTART switch if OFF.
MARK Indicates marking condition on the pre-autostart data output from the slicer
stage.
KOS Indicates that the KOS circuit is in TRANSMIT mode.
SPACE Indicates that the post-autostart data is in space condition.
LOOP Indicates marking condition in the LOOP 1 circuit.
OSCILLOSCOPE Indicates tuning of receiver.
Table 4.2 ST-6000 Front Panel Indicators
The rear panel connectors have been discussed in detail in section 3 and internal adjustments
will be discussed in detail later in this manual.
4.2 Simplified Operating Procedure
The following procedure is suggested for those operators who are anxious to try the ST-6000
without reading the rest of this manual.
1. Use the "standard" cables and jumper plugs supplied with the ST-6000 to connect the unit
to a receiver and printer or display as described in section 3.2. DO NOT CONNECT A
TRANSMITTER WITHOUT READING THE REST OF SECTION 4 OF THIS MANUAL.
2. AFTER CONNECTIONS ARE MADE, plug-in the ST-6000 and other equipment and turn-on
the AC power to each.
3. Set the ST-6000 switches as follows:
POWER - ON
AUTOSTART - OFF, FAST or SLOW
KOS - OFF
PRINT - LINE
DTH - OFF
ATC - ON
SENSE - NORM
LIMITER - ON
SHIFT - select desired shift
4. Set the receiver to LSB mode and tune to a FSK RTTY signal. (Approximately 3600 kHz at
night and 14.000 kHz during the day are good frequencies to look for 170 Hz shift radio
amateur RTTY signals at 60 WPM.)
5. Tune the receiver dial until perpendicular ellipses are displayed on the oscilloscope screen.
6. The printer should now print the received signal. If it doesn't, try reversing the SENSE
switch or selecting different speeds on the printer or display.
7. NOW, read the rest of this manual!