5-10
General Notes on Transmitting:
1) DO NOT overdrive the transmitter if you are using the microphone input. If you notice that the
ALC circuit of your transmitter becomes active, you are overdriving your transmitter
2) If you use a speech processor for voice transmissions, be sure you turn it off or disconnect it
during RTTY transmission.
3) Reduce the power output of your transmitter while transmitting RTTY. RTTY is 100 % duty cy-
cle and failure to reduce power could cause damage to your transmitter.
4) Make sure that the passband of your transmitter is of sufficient width to pass both the Mark
and Space tones you are using.
THERE ARE THREE WAYS TO SET THE ST-6000 FOR TRANSMITTING:
1) KOS activated
2) Print switch in LOCAL position
3) REMOTE STANDBY line grounded
XMIT
Is the 6000 producing any output tones?
TONE ENABLE (J3-12) should be low, tone level
Yes
No
set?, cable to transmitter OK, shift switch se-
lected
Is it making Mark and Space transition?
Check continuity: Loop sense hooked to XTK
No
DATA IN (J3 pins 11, 15), signal on J3-15 tog-
Yes
gle with loop (mark to space, etc.)? CW-ID on?
(pins J8-6 or J5-2)
Is the station transmitting:
Retrace XMIT section, if no success more infor-
Yes
No
mation needed.
Check other shifts, if desired.
Summary of Contents for ST-6000
Page 1: ...ST 6000 FSK DEMODULATOR...
Page 14: ...3 3...
Page 15: ...3 4...
Page 17: ...3 6 Figure 3 DS 2000 and ST 6000 System Connection Schematic...
Page 19: ...3 8 Figure 3 2 Loop Connections to the ST 6000...
Page 20: ...3 9 Figure 3 3 RS 232 I O Connections to the ST 6000...
Page 24: ...3 13 Figure 3 5 Alternate Loop Connections...
Page 25: ...3 14 Figure 3 6 Connections for the ST 6000 for Full Duplex Operation...
Page 49: ...5 11...
Page 50: ...5 12...
Page 51: ...5 13...
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