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 TM 11-5815-206-12
c. Circuit Speeds. The teletypewriters are factory-
Signal code . . . . . . . . . . . . . .
Five unit, start-stop; stop im-
pulse length equals start im-
adjusted to operate in 60-words-per-minute (wpm)
pulse length multiplied by
(368.1 operations-per-minute (opm)) teletypewriter
1.42.
circuits. Accessory gears are included with the
Symbols . . . . . . . . . . . . . . . . . . .
Standard communications
TT-4(*)/TG, TT335/TG, TT-537/G,
English
Type of characters . . . . . . . . . .
TT-698(*)/TG, and TT-722(*)/TG for operation at
Printer characters per line . . .
72
100 wpm (600 opm). Operation at speeds of 66 wpm
Signal distortion tolerances:
Transmitted signals . . . . . . .
5% max
(404 opm) is possible with gears which are not part of
Received signals:
t h e AN/PGC1, AN/PGC3, TT4(*)/TG or
Bias tolerance Maximum
TT-698(*)/TG.
marking or spacing):
60 wpm opm . . . . . . . . .
40 percent
1-8. Tabulated Data
100 wpm . . . . . . . . . . . . .
35 percent
End distortion tolerance
(maximum, marking or
spacing):
Motor:
60 wpm . . . . . . . . . . . . . .
35 percent
TT-4(*)/TG, TT-698(*)
l00 wpm.. . . . . . . . . . . . .
30 percent
/TG and TT-722(*)/
Orientation range:
TG...................
Approx 150 watts
60 wpm . . . . . . . . . . . . . . . . . .
72 divisions on RANGE dial
TT-335/TG and
100 wpm . . . . . . . . . . . . . . . . .
60 divisions on RANGE dial
Approx 200 watts
TT-537/G . . . . . . . . . . .
Type of paper feed . . . . . . . . . .
Signal circuit:
Paper capacity . . . . . . . . . . . . .
Single-, double- or triple-copy
Approx 10 watts
TT-4(*)/TG . . . . . . . . . . .
roll; 8-inch width, 4-inch
Approx 12 watts
TT-698(*)/TG . . . . . . . . .
maximum diameter. (Only sin-
Voltage requirements:
gle-copy recording paper is
TT-4(*)/TG,
furnished as part of TT-4(*)/
TT-722(*)/TG , . . . . . .
105 to 125 dc or ac (50-60 Hz,
TG).
single phase)
Suppression . . . . . . . . . . .
Teletypewriters do not inter-
TT-335/TG,
fere with radio reception at
TT-537/G . . . . . . . . . . .
108 `to 132 volts (396 to 404 Hz,
frequencies between 0.35 and
single phase)
150 megacycles when located
TT'-698(*)/TG . . . . . . . . .
105 to 125 volts ac (50-60 Hz,
1 foot or more from radio
single phase)
Motor:
Signal circuit:
Type . . . . . . . . . . .
Series-government (TT-4(*)/TG,
TT-4(*)/TG, TT-335/TG,
TT-698(*)/TC, and TT-722(*)/
105-125 volts dc
TT-722(*)/TG . . . . . . .
6() volts or 120-130 volts dc
TG; synchronous (TT-335/TG
TT-537/G . . . . . . . . . . .
TT-698(*)/TG . . . . . . .
and TT-537/(G)._
6() volts
Speed . . . . . . . . . . . . . . . . . . .
3600 rpm (TT-4(*)TG,
Service range (direct wire,
TT-698(*)/TG and TT-722 (*)
60 ma line current):
/TG); 12,000 rpm (TT-335/TG
25 miles*
60 wpm . . . . . . . . . . . . . .
and TT-537/G).
15 miles*
100 wpm . . . . . . . . . . .
Humidity tolerance . . . . . . . . .
Equipment withstands high
Speed options:
humidity and moisture as
Words per minute
encounted in tropics; it is
(para 1-7c) . . . . . . . . . .
60 (368.1 opm)
fungiproofed and resistant to
66(404 opm)
corrosion.
66 (404 opm)
Temperature ranges:
75 (460 opm)
Equipment in use . . . . . . . . .
+32F (0C)to +130F (+55.6C),
100 (600 opm)
(TT-4(*)/TG); -25F (-32.C)
to +132F (+55.6C) (TT-335/
Type of signals . . . . . . . . . . .
Dc, neutral, 20 or 60 ma
TG and TT-537/G)
Dc, polar6 vdc
Equipment in storage . . . . .
-800F (62C) to 160F (+71.1C)
* Approximate range, using a field-wire, ground return circuit
(both wires used for metallic part of the circuit). Actual range will
vary in accordance with the type of wire used and the type and con-
dition of the circuit.
Change 1
1-4
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